diff --git a/datashare-python/datashare_python/cli/task.py b/datashare-python/datashare_python/cli/task.py
index a9d8c6b5..b5509e62 100644
--- a/datashare-python/datashare_python/cli/task.py
+++ b/datashare-python/datashare_python/cli/task.py
@@ -28,7 +28,7 @@
 _TASK_ID_HELP = "task ID"
 _WATCH_HELP = "watch a task until it's complete"
 
-TaskArgs = str
+StrTaskArgs = str
 
 task_app = AsyncTyper(name="task")
 
@@ -36,7 +36,7 @@
 @task_app.async_command(help=_START_HELP)
 async def start(
     name: Annotated[str, typer.Argument(help=_NAME_HELP)],
-    args: Annotated[TaskArgs, typer.Argument(help=_ARGS_HELP)] = None,
+    args: Annotated[StrTaskArgs, typer.Argument(help=_ARGS_HELP)] = None,
     group: Annotated[
         str | None,
         typer.Option("--group", "-g", help=_GROUP_HELP),
diff --git a/datashare-python/datashare_python/constants.py b/datashare-python/datashare_python/constants.py
index 383a3fa3..091f16e0 100644
--- a/datashare-python/datashare_python/constants.py
+++ b/datashare-python/datashare_python/constants.py
@@ -11,6 +11,7 @@
 DEFAULT_NAMESPACE = "datashare-default"
 
 METADATA_JSON = "metadata.json"
+MANIFEST_JSON = "manifest.json"
 
 TIKA_METADATA_RESOURCENAME = "tika_metadata_resourcename"
 
diff --git a/datashare-python/datashare_python/logging_.py b/datashare-python/datashare_python/logging_.py
index 379fb220..2b70734d 100644
--- a/datashare-python/datashare_python/logging_.py
+++ b/datashare-python/datashare_python/logging_.py
@@ -132,7 +132,7 @@ def _encode_value(value: Any) -> str:
         return "true" if value else "false"
     if isinstance(value, numbers.Number):
         return str(value)
-    return json.dumps(value).decode()
+    return json.dumps(value)
 
 
 def _json_formatter(datefmt: str) -> BaseJsonFormatter:
diff --git a/datashare-python/datashare_python/objects.py b/datashare-python/datashare_python/objects.py
index 7aa8ec91..70d8495c 100644
--- a/datashare-python/datashare_python/objects.py
+++ b/datashare-python/datashare_python/objects.py
@@ -1,5 +1,6 @@
 import logging
 import os
+from abc import ABC
 from asyncio import Lock
 from collections.abc import Awaitable, Callable
 from dataclasses import InitVar, dataclass, field
@@ -7,12 +8,15 @@
 from enum import StrEnum, unique
 from io import BytesIO
 from pathlib import Path
-from typing import Annotated, Any, ClassVar, Literal, Self, TypeVar, cast
+from typing import Annotated, Any, ClassVar, Generic, Literal, Self, TypeVar, cast
 
 import langcodes
+from icij_common.registrable import Registrable
 from lru import LRU
 from pydantic_core import PydanticCustomError, ValidationError, core_schema
-from pydantic_core.core_schema import PlainValidatorFunctionSchema
+from pydantic_core.core_schema import (
+    PlainValidatorFunctionSchema,
+)
 from pydantic_extra_types.language_code import LanguageName
 from temporalio import workflow
 
@@ -34,12 +38,17 @@
 from icij_common.pydantic_utils import (
     icij_config,
     lowercamel_case_config,
+    make_enum_discriminator,
     merge_configs,
     no_enum_values_config,
+    tagged_union,
 )
 from pydantic import (
     AfterValidator,
+    AliasChoices,
     BeforeValidator,
+    ConfigDict,
+    Discriminator,
     Field,
     GetCoreSchemaHandler,
     TypeAdapter,
@@ -256,13 +265,123 @@ def _is_absolute_path(v: bytes | BytesIO | Path) -> Any:
     return v
 
 
-@dataclass(frozen=True)
-class DocArtifact:
+class ArtifactType(StrEnum):
+    STRUCTURE = "structure"
+    ASR_TRANSCRIPTION = "transcription"
+
+
+class ManifestEntryStatus(StrEnum):
+    COMPLETE = "complete"
+
+
+class TaskArgs(DatashareModel, ABC):
+    def as_manifest_task_input(self) -> dict[str, Any]:
+        # This is a base implementation, if the input is too large to be dumped,
+        # override this and pop large keys
+        as_manifest = self.model_dump(by_alias=True)
+        return as_manifest
+
+
+A = TypeVar("A", bound=TaskArgs)
+
+
+class ManifestEntry(DatashareModel, Generic[A], ABC):
+    status: ManifestEntryStatus
+    label: str | None = None
+    input: Annotated[
+        dict[str, Any] | None,
+        Field(
+            validation_alias=AliasChoices("taskInput", "input"),
+            serialization_alias="taskInput",
+        ),
+    ]
+
+    @classmethod
+    def complete(cls, args: A, label: str | None = None, **kwargs) -> Self:
+        return cls(
+            input=args.as_manifest_task_input(),
+            label=label,
+            status=ManifestEntryStatus.COMPLETE,
+            **kwargs,
+        )
+
+
+class PaginationType(StrEnum):
+    FILESYSTEM = "filesystem"
+    BYTE_RANGES = "byteRanges"
+
+
+class BasePagination(DatashareModel, Registrable, ABC):
+    registry_key: ClassVar[str] = Field(frozen=True, default="type")
+
+    total: int
+    type: ClassVar[PaginationType] = Field(frozen=True)
+
+
+def _validate_pages_range(v: Any) -> None:
+    if not isinstance(v, list):
+        msg = f"expected a list, got {type(v)}"
+        raise TypeError(msg)
+    previous_end = None
+    for page_i, (start, end) in enumerate(v):
+        if not start <= end:
+            msg = "end of page must be >= start"
+            raise ValueError(msg)
+        if previous_end is not None and previous_end != start:
+            msg = (
+                f"start of page {page_i} doesn't match end of previous "
+                f"page {previous_end}"
+            )
+            raise ValueError(msg)
+    return v
+
+
+PagesRange = Annotated[list[tuple[int, int]], AfterValidator(_validate_pages_range)]
+
+
+@BasePagination.register(PaginationType.FILESYSTEM)
+class FilesystemPagination(BasePagination):
+    type: ClassVar[PaginationType] = Field(
+        default=PaginationType.FILESYSTEM, frozen=True
+    )
+
+
+@BasePagination.register(PaginationType.BYTE_RANGES)
+class ByteRangesPagination(BasePagination):
+    type: ClassVar[PaginationType] = Field(
+        default=PaginationType.BYTE_RANGES, frozen=True
+    )
+    byte_ranges: PagesRange
+
+    @model_validator(mode="after")
+    def byte_ranges_length_should_match_total(self) -> Self:
+        if len(self.byte_ranges) != self.total:
+            msg = (
+                f"byte_ranges must match total. Found {len(self.byte_ranges)} for"
+                f" byte_ranges and  {self.total} for total."
+            )
+            raise ValueError(msg)
+        return self
+
+
+pagination_discriminator = make_enum_discriminator("type", PaginationType)
+Pagination = Annotated[
+    tagged_union(BasePagination.__subclasses__(), lambda x: x.type),
+    Discriminator(pagination_discriminator),
+]
+
+
+class DocArtifact(BaseModel, ABC):
+    # This object is not used for serde, just as a container, it's OK to allow
+    # arbitrary types (to allow storing BytesIO)
+    model_config = ConfigDict(arbitrary_types_allowed=True)
+
     project: str
     doc_id: str
     artifact: Annotated[bytes | BytesIO | Path, AfterValidator(_is_absolute_path)]
-    filename: str
-    metadata_key: str
+    filename: ClassVar[str]  # Override this
+    type: ClassVar[ArtifactType]  # Override this
+    manifest_entry: ManifestEntry
 
 
 @unique
diff --git a/datashare-python/datashare_python/utils.py b/datashare-python/datashare_python/utils.py
index 04dd6ba3..3e4fd02a 100644
--- a/datashare-python/datashare_python/utils.py
+++ b/datashare-python/datashare_python/utils.py
@@ -36,7 +36,7 @@
     SyncProgressRateHandler,
 )
 
-from .constants import METADATA_JSON
+from .constants import MANIFEST_JSON, METADATA_JSON
 from .objects import DocArtifact, DocumentLocation, FilesystemDocument
 from .types_ import RawAsyncProgressHandler
 
@@ -338,34 +338,75 @@ def _metadata_path(doc_id: str, *, project: str) -> Path:
     return metadata_path
 
 
-def _read_artifact_metadata(root: Path, artifact: DocArtifact) -> dict:
-    m_path = root / _metadata_path(artifact.doc_id, project=artifact.project)
+def _manifest_path(doc_id: str, *, project: str) -> Path:
+    manifest_path = artifacts_dir(doc_id, project=project) / MANIFEST_JSON
+    return manifest_path
+
+
+def _read_artifact_manifest(root: Path, artifact: DocArtifact) -> dict:
+    m_path = root / _manifest_path(artifact.doc_id, project=artifact.project)
+    if not m_path.exists():
+        m_path = root / _metadata_path(artifact.doc_id, project=artifact.project)
+        if not m_path.exists():
+            msg = f"couldn't find manifest nor metadata for {artifact.doc_id}"
+            raise FileNotFoundError(msg)
     return json.loads(m_path.read_text())
 
 
 def write_artifact(root: Path, artifact: DocArtifact) -> Path:
+    # TODO: WARNING many writers could write at the time, to avoid inconsistent
+    #  states we should handle this somehow
     artif_dir = root / artifacts_dir(artifact.doc_id, project=artifact.project)
     artif_dir.mkdir(exist_ok=True, parents=True)
-    # TODO: if transcriptions are too large we could also serialize them
-    #  as jsonl
-    artifact_path: Path = artif_dir / artifact.filename
-    match artifact.artifact:
+    artifact_path = artif_dir / artifact.filename
+    # Read the metadata first (things could go wrong here in case someone is reading
+    # at the same time). We read in a backward compatible wat and write to that same
+    # location. We don't take responsibility for migrating the data, the DS back will
+    # do it
+    manifest_path, manifest = _read_manifest_backward_compatible(root, artifact)
+    is_legacy = manifest_path.name == "metadata.json"
+    # Pop the status key from the manifest before writing
+    manifest_entry = manifest.get(artifact.type)
+    if manifest_entry is not None and not is_legacy:
+        manifest[artifact.type].pop("status", None)
+        manifest_path.write_text(json.dumps(manifest))
+    # Write the artifact
+    _write_artifact_bytes(artifact_path, artifact.artifact)
+    # Update the manifest entry with details and new states
+    if is_legacy:
+        manifest_entry = str(artifact_path.relative_to(artif_dir))
+    else:
+        manifest_entry = artifact.manifest_entry.model_dump(mode="json", by_alias=True)
+    manifest[artifact.type] = manifest_entry
+    manifest_path.write_text(json.dumps(manifest))
+    return artifact_path.relative_to(artif_dir)
+
+
+def _read_manifest_backward_compatible(
+    root: Path, artifact: DocArtifact
+) -> tuple[Path, dict[str, Any]]:
+    manifest_path = root / _manifest_path(artifact.doc_id, project=artifact.project)
+    if manifest_path.exists():
+        return manifest_path, _read_artifact_manifest(root, artifact)
+    meta_path = root / _metadata_path(artifact.doc_id, project=artifact.project)
+    if meta_path.exists():
+        return meta_path, _read_artifact_manifest(root, artifact)
+    return manifest_path, dict()
+
+
+def _write_artifact_bytes(path: Path, artifact: bytes | BytesIO | Path) -> None:
+    match artifact:
         case bytes():
-            artifact_path.write_bytes(artifact.artifact)
+            path.write_bytes(artifact)
         case BytesIO():
-            with artifact_path.open("wb") as f:
-                f.write(artifact.artifact.read())
+            with path.open("wb") as f:
+                f.write(artifact.read())
         case Path():
-            artifact_path.unlink(missing_ok=True)
-            shutil.move(artifact.artifact, artifact_path)
+            path.unlink(missing_ok=True)
+            shutil.move(artifact, path)
         case _:
-            msg = f"unsupported artifact type: {artifact.artifact.__class__.__name__}"
+            msg = f"unsupported artifact type: {artifact.__class__.__name__}"
             raise ValueError(msg)
-    meta_path = root / _metadata_path(artifact.doc_id, project=artifact.project)
-    meta = _read_artifact_metadata(root, artifact) if meta_path.exists() else dict()
-    meta[artifact.metadata_key] = artifact.filename
-    meta_path.write_text(json.dumps(meta))
-    return artifact_path.relative_to(artif_dir)
 
 
 def debuggable_name(
diff --git a/datashare-python/pyproject.toml b/datashare-python/pyproject.toml
index ec639283..8ad37d75 100644
--- a/datashare-python/pyproject.toml
+++ b/datashare-python/pyproject.toml
@@ -13,7 +13,7 @@ dependencies = [
   "alive-progress~=3.2",
   "aiohttp~=3.11",
   "hatchling~=1.27",
-  "icij-common[elasticsearch]~=0.8.2",
+  "icij-common[elasticsearch]~=0.8.3",
   "langcodes~=3.5",
   "python-json-logger~=4.0",
   "pyyaml~=6.0",
diff --git a/datashare-python/tests/test_objects.py b/datashare-python/tests/test_objects.py
index c42f8322..3130592a 100644
--- a/datashare-python/tests/test_objects.py
+++ b/datashare-python/tests/test_objects.py
@@ -1,3 +1,4 @@
+import json
 import re
 from datetime import datetime
 from pathlib import Path
@@ -6,6 +7,8 @@
 from datashare_python.conftest import TEST_PROJECT
 from datashare_python.constants import TIKA_METADATA_RESOURCENAME
 from datashare_python.objects import (
+    BasePagination,
+    ByteRangesPagination,
     DatashareLanguage,
     Document,
     DocumentLocation,
@@ -94,3 +97,20 @@ def test_invalid_datashare_language_should_raise(
     # When/Then
     with pytest.raises(ValidationError, match=expected_msg):
         type_adapter.validate_python(language)
+
+
+def test_pagination_serde() -> None:
+    # Given
+    pagination = ByteRangesPagination(total=3, byte_ranges=[(0, 1), (1, 2), (2, 3)])
+    ta = TypeAdapter(BasePagination)
+    # When
+    serialized = pagination.model_dump_json(by_alias=True)
+    deserialized = ta.validate_json(serialized)
+    # Then
+    expected_serialized = {
+        "type": "byteRanges",
+        "total": 3,
+        "byteRanges": [[0, 1], [1, 2], [2, 3]],
+    }
+    assert json.loads(serialized) == expected_serialized
+    assert deserialized == pagination
diff --git a/datashare-python/tests/test_utils.py b/datashare-python/tests/test_utils.py
index 52fea31d..acb2971b 100644
--- a/datashare-python/tests/test_utils.py
+++ b/datashare-python/tests/test_utils.py
@@ -2,9 +2,16 @@
 import uuid
 from datetime import timedelta
 from pathlib import Path
+from typing import ClassVar
 
 import pytest
-from datashare_python.objects import DatashareModel, DocArtifact
+from datashare_python.objects import (
+    ArtifactType,
+    DatashareModel,
+    DocArtifact,
+    ManifestEntry,
+    TaskArgs,
+)
 from datashare_python.types_ import TemporalClient
 from datashare_python.utils import activity_defn, positional_args_only, write_artifact
 from datashare_python.worker import datashare_worker
@@ -117,20 +124,31 @@ async def test_deserialization_error(
         assert "2 validation errors for DeserArg" in root_cause.message
 
 
+class MockedArgs(TaskArgs):
+    some_value: str
+
+
+class MockedManifestEntry(ManifestEntry): ...
+
+
+class MockedArtifact(DocArtifact):
+    filename: ClassVar[str] = "mocked-structure"
+    type: ClassVar[ArtifactType] = ArtifactType.STRUCTURE
+
+
 def test_write_artifact(tmp_path: Path) -> None:
     from datashare_python.conftest import TEST_PROJECT  # noqa: PLC0415
 
     # Given
+    args = MockedArgs(some_value="value")
     root_dir = Path(tmp_path)
     artifact_bytes = b"artifacts"
-    filename = "some_artifact"
-    metadata_key = "artifact_key"
-    artifact = DocArtifact(
+    manifest_entry = MockedManifestEntry.complete(args)
+    artifact = MockedArtifact(
         project=TEST_PROJECT,
         doc_id="doc_id",
         artifact=artifact_bytes,
-        filename=filename,
-        metadata_key=metadata_key,
+        manifest_entry=manifest_entry,
     )
     # When
     write_artifact(root_dir, artifact)
@@ -138,13 +156,18 @@ def test_write_artifact(tmp_path: Path) -> None:
     artifact_dir = root_dir / TEST_PROJECT / "do" / "c_" / "doc_id"
     assert artifact_dir.exists()
     assert artifact_dir.is_dir()
-    meta_path = artifact_dir / "metadata.json"
-    assert meta_path.exists()
-    meta = json.loads(meta_path.read_text())
-    assert meta == {"artifact_key": filename}
-    artifact_name = meta.get(metadata_key)
-    assert artifact_name is not None
-    artifact_path = artifact_dir / artifact_name
+    manifest_path = artifact_dir / "manifest.json"
+    assert manifest_path.exists()
+    manifest = json.loads(manifest_path.read_text())
+    expected_manifest = {
+        "structure": {
+            "status": "complete",
+            "taskInput": {"someValue": "value"},
+            "label": None,
+        }
+    }
+    assert manifest == expected_manifest
+    artifact_path = artifact_dir / "mocked-structure"
     assert artifact_path.exists()
     assert artifact_path.read_bytes() == artifact_bytes
 
@@ -153,18 +176,59 @@ def test_write_artifact_with_existing_metadata(tmp_path: Path) -> None:
     from datashare_python.conftest import TEST_PROJECT  # noqa: PLC0415
 
     # Given
+    args = MockedArgs(some_value="value")
+    root_dir = Path(tmp_path)
+    artifact_bytes = b"artifacts"
+    manifest_entry = MockedManifestEntry.complete(args)
+    artifact = MockedArtifact(
+        project=TEST_PROJECT,
+        doc_id="doc_id",
+        artifact=artifact_bytes,
+        manifest_entry=manifest_entry,
+    )
+    existing_manifest = {"some": "value"}
+    artifact_dir = root_dir / TEST_PROJECT / "do" / "c_" / "doc_id"
+    artifact_dir.mkdir(parents=True, exist_ok=True)
+    manifest_path = artifact_dir / "manifest.json"
+    manifest_path.write_text(json.dumps(existing_manifest))
+    # When
+    write_artifact(root_dir, artifact)
+    # Then
+    artifact_dir = root_dir / TEST_PROJECT / "do" / "c_" / "doc_id"
+    assert artifact_dir.exists()
+    assert artifact_dir.is_dir()
+    assert manifest_path.exists()
+    manifest = json.loads(manifest_path.read_text())
+    expected_manifest = {
+        "structure": {
+            "status": "complete",
+            "taskInput": {"someValue": "value"},
+            "label": None,
+        },
+        "some": "value",
+    }
+    assert manifest == expected_manifest
+    assert manifest == expected_manifest
+    artifact_path = artifact_dir / "mocked-structure"
+    assert artifact_path.exists()
+    assert artifact_path.read_bytes() == artifact_bytes
+
+
+def test_write_artifact_with_existing_legacy_metadata(tmp_path: Path) -> None:
+    from datashare_python.conftest import TEST_PROJECT  # noqa: PLC0415
+
+    # Given
+    args = MockedArgs(some_value="value")
     root_dir = Path(tmp_path)
     artifact_bytes = b"artifacts"
-    filename = "some_artifact"
-    metadata_key = "artifact_key"
-    artifact = DocArtifact(
+    manifest_entry = MockedManifestEntry.complete(args)
+    artifact = MockedArtifact(
         project=TEST_PROJECT,
         doc_id="doc_id",
         artifact=artifact_bytes,
-        filename=filename,
-        metadata_key=metadata_key,
+        manifest_entry=manifest_entry,
     )
-    existing_metadata = {"some": "metadata"}
+    existing_metadata = {"structure": "existing-structure"}
     artifact_dir = root_dir / TEST_PROJECT / "do" / "c_" / "doc_id"
     artifact_dir.mkdir(parents=True, exist_ok=True)
     meta_path = artifact_dir / "metadata.json"
@@ -178,9 +242,52 @@ def test_write_artifact_with_existing_metadata(tmp_path: Path) -> None:
     meta_path = artifact_dir / "metadata.json"
     assert meta_path.exists()
     meta = json.loads(meta_path.read_text())
-    assert meta == {"artifact_key": filename, "some": "metadata"}
-    artifact_name = meta.get(metadata_key)
+    assert meta == {"structure": MockedArtifact.filename}
+    artifact_name = meta.get(ArtifactType.STRUCTURE)
     assert artifact_name is not None
     artifact_path = artifact_dir / artifact_name
     assert artifact_path.exists()
     assert artifact_path.read_bytes() == artifact_bytes
+
+
+def test_overwrite_artifact(tmp_path: Path) -> None:
+    from datashare_python.conftest import TEST_PROJECT  # noqa: PLC0415
+
+    # Given
+    args = MockedArgs(some_value="value")
+    root_dir = Path(tmp_path)
+    manifest_entry = MockedManifestEntry.complete(args)
+    first = MockedArtifact(
+        project=TEST_PROJECT,
+        doc_id="doc_id",
+        artifact=b"first",
+        manifest_entry=manifest_entry,
+    )
+    second = MockedArtifact(
+        project=TEST_PROJECT,
+        doc_id="doc_id",
+        artifact=b"second",
+        manifest_entry=manifest_entry,
+    )
+    write_artifact(root_dir, first)
+    # When
+    write_artifact(root_dir, second)
+    # Then
+    artifact_dir = root_dir / TEST_PROJECT / "do" / "c_" / "doc_id"
+    assert artifact_dir.exists()
+    assert artifact_dir.is_dir()
+    manifest_path = artifact_dir / "manifest.json"
+    assert manifest_path.exists()
+    manifest = json.loads(manifest_path.read_text())
+    expected_manifest = {
+        "structure": {
+            "status": "complete",
+            "taskInput": {"someValue": "value"},
+            "label": None,
+        },
+    }
+    assert manifest == expected_manifest
+    assert manifest == expected_manifest
+    artifact_path = artifact_dir / "mocked-structure"
+    assert artifact_path.exists()
+    assert artifact_path.read_bytes() == b"second"
diff --git a/worker-template/uv.dist.lock b/worker-template/uv.dist.lock
index b5025ac4..c36f93ed 100644
--- a/worker-template/uv.dist.lock
+++ b/worker-template/uv.dist.lock
@@ -307,7 +307,7 @@ wheels = [
 
 [[package]]
 name = "datashare-python"
-version = "0.9.4"
+version = "0.9.5"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "aiohttp" },
@@ -325,9 +325,9 @@ dependencies = [
     { name = "tomlkit" },
     { name = "typer" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/b0/1e/b6dcacb07a29f526151c98003e1c97e0b8ed0a19692abb217f9477ee80ee/datashare_python-0.9.4.tar.gz", hash = "sha256:2ab6bd6b4237f8474e61b21335441b311e84d3d0d3b6a8441fd0f33558bc790a", size = 320672, upload-time = "2026-06-23T09:25:20.411Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/cc/6a/cb3c7c3073573c6ad0cf56cd6c6b6c97dbd1dbd6392ec0314e78865c9dee/datashare_python-0.9.5.tar.gz", hash = "sha256:9ff757584b46bf95af74a1c890734d3233f02f54724806ec9b346a04c39e311a", size = 320645, upload-time = "2026-06-23T12:11:01.145Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/29/5c/cf9c94901a93a275f366c1e64418dc7c5eb217baede67ce21ec273d0ddb1/datashare_python-0.9.4-py3-none-any.whl", hash = "sha256:1ade134e1584d5c32255418eeedf5f5c7c6383d931a593f7765fd26b17114ff7", size = 326668, upload-time = "2026-06-23T09:25:21.423Z" },
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diff --git a/worker-template/uv.lock b/worker-template/uv.lock
index f13444da..c4ca0b83 100644
--- a/worker-template/uv.lock
+++ b/worker-template/uv.lock
@@ -307,7 +307,7 @@ wheels = [
 
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-
 [[package]]
 name = "packaging"
 version = "26.0"
diff --git a/worker-template/worker_template/objects.py b/worker-template/worker_template/objects.py
index 63d4ac43..2b8bf7cd 100644
--- a/worker-template/worker_template/objects.py
+++ b/worker-template/worker_template/objects.py
@@ -1,5 +1,5 @@
 import pycountry
-from datashare_python.objects import DatashareLanguage, DatashareModel
+from datashare_python.objects import DatashareLanguage, DatashareModel, TaskArgs
 from pydantic import Field
 
 
@@ -29,7 +29,7 @@ class TranslateAndClassifyConfig(DatashareModel):
     classification: ClassificationConfig = ClassificationConfig()
 
 
-class TranslateAndClassifyArgs(DatashareModel):
+class TranslateAndClassifyArgs(TaskArgs):
     project: str
     language: DatashareLanguage
     config: TranslateAndClassifyConfig = TranslateAndClassifyConfig()
diff --git a/workers/asr-worker/asr_worker/activities.py b/workers/asr-worker/asr_worker/activities.py
index f15345be..ba149bb0 100644
--- a/workers/asr-worker/asr_worker/activities.py
+++ b/workers/asr-worker/asr_worker/activities.py
@@ -2,9 +2,10 @@
 import logging
 from asyncio import AbstractEventLoop
 from collections.abc import AsyncGenerator, AsyncIterable, Iterable
+from functools import partial
 from itertools import tee
 from pathlib import Path
-from typing import Annotated, Any, cast
+from typing import Annotated, Any, Protocol, cast
 
 from caul.objects import ASRResult, PreprocessedInput
 from caul.tasks import (
@@ -16,7 +17,6 @@
 )
 from datashare_python.dependencies import lifespan_worker_config
 from datashare_python.objects import (
-    DocArtifact,
     Document,
     FilesystemDocument,
 )
@@ -62,11 +62,15 @@
     RUN_INFERENCE_ACTIVITY,
     SEARCH_AUDIOS_ACTIVITY,
     SUPPORTED_CONTENT_TYPES,
-    TRANSCRIPTION_METADATA_KEY,
-    TRANSCRIPTION_METADATA_VALUE,
 )
 from .dependencies import lifespan_es_client
-from .objects import InferenceRunnerConfig, Transcription
+from .objects import (
+    ASRArgs,
+    InferenceRunnerConfig,
+    Transcription,
+    TranscriptionArtifact,
+    TranscriptionManifestEntry,
+)
 
 logger = logging.getLogger(__name__)
 
@@ -79,6 +83,10 @@
 _INFERENCE_CONFIG_TYPE_ADAPTER = TypeAdapter(InferenceRunnerConfig)
 
 
+class ArtifactFactory(Protocol):
+    def __call__(self, artifact: bytes) -> TranscriptionArtifact: ...
+
+
 class ASRActivities(ActivityWithProgress):
     @activity_defn(name=SEARCH_AUDIOS_ACTIVITY)
     async def search_audio_paths(
@@ -183,7 +191,7 @@ def postprocess(
         inference_results: list[Path],
         audio_batch: Path,
         config: ParakeetPostprocessorConfig,
-        project: str,
+        args: ASRArgs,
         *,
         progress: Annotated[  # noqa: ARG002
             SyncProgressRateHandler | None, Weight(value=_BASE_WEIGHT)
@@ -212,7 +220,7 @@ def postprocess(
                 postprocessor,
                 inference_results,
                 doc_ids,
-                project=project,
+                args,
                 artifacts_root=artifacts_root,
                 event_loop=self._event_loop,
                 progress=progress,
@@ -315,9 +323,9 @@ def postprocess_act(
     postprocessor: Postprocessor,
     inference_results: Iterable[ASRResult],
     doc_ids: Iterable[str],
+    args: ASRArgs,
     *,
     artifacts_root: Path,
-    project: str,
     event_loop: AbstractEventLoop | None = None,
     progress: SyncProgressRateHandler | None = None,
 ) -> int:
@@ -326,9 +334,16 @@ def postprocess_act(
     n_docs = 0
     for i, (doc_id, asr_result) in enumerate(zip(doc_ids, transcriptions, strict=True)):
         n_docs += 1
-        t_path = write_transcription(
-            doc_id, asr_result, artifacts_root=artifacts_root, project=project
+        manifest_entry = TranscriptionManifestEntry.complete(
+            args, confidence=asr_result.score
+        )
+        artifact_factory = partial(
+            TranscriptionArtifact,
+            project=args.project,
+            doc_id=doc_id,
+            manifest_entry=manifest_entry,
         )
+        t_path = write_transcription(asr_result, artifact_factory, artifacts_root)
         logger.debug("wrote transcription for %s", t_path)
         if progress is not None and event_loop is not None:
             progress(i, event_loop)
@@ -352,17 +367,11 @@ def _preprocess(
 
 
 def write_transcription(
-    doc_id: str, asr_result: ASRResult, *, artifacts_root: Path, project: str
+    asr_result: ASRResult, artifact_factory: ArtifactFactory, artifacts_root: Path
 ) -> Path:
     result = Transcription.from_asr_handler_result(asr_result)
     artifact_bytes = result.model_dump_json().encode()
-    artifact = DocArtifact(
-        project=project,
-        doc_id=doc_id,
-        filename=TRANSCRIPTION_METADATA_VALUE,
-        metadata_key=TRANSCRIPTION_METADATA_KEY,
-        artifact=artifact_bytes,
-    )
+    artifact = artifact_factory(artifact=artifact_bytes)
     # TODO: if transcriptions are too large we could also serialize them
     #  as jsonl
     rel_path = write_artifact(artifacts_root, artifact)
diff --git a/workers/asr-worker/asr_worker/constants.py b/workers/asr-worker/asr_worker/constants.py
index 7a05583b..1d621e4b 100644
--- a/workers/asr-worker/asr_worker/constants.py
+++ b/workers/asr-worker/asr_worker/constants.py
@@ -14,9 +14,6 @@
 
 RESPONSE_ERROR = "error"
 
-TRANSCRIPTION_METADATA_KEY = "transcription"
-TRANSCRIPTION_METADATA_VALUE = "transcription.json"
-
 ASR_WORKFLOW = "asr.transcription"
 GET_CONFIG_ACTIVITY = "asr.transcription.config"
 PREPROCESS_ACTIVITY = "asr.transcription.preprocess"
diff --git a/workers/asr-worker/asr_worker/objects.py b/workers/asr-worker/asr_worker/objects.py
index 25ba88dd..b12a8cf0 100644
--- a/workers/asr-worker/asr_worker/objects.py
+++ b/workers/asr-worker/asr_worker/objects.py
@@ -1,12 +1,18 @@
 import math
 from collections import defaultdict
 from functools import cache
-from typing import Annotated, Any, Self
+from typing import Annotated, Any, ClassVar, Self
 
 from caul.asr_pipeline import ASRPipelineConfig
 from caul.config import InferenceRunnerConfig as CaulInferenceRunnerConfig
 from caul.objects import ASRLanguage, ASRModel, ASRResult
-from datashare_python.objects import DatashareModel
+from datashare_python.objects import (
+    ArtifactType,
+    DatashareModel,
+    DocArtifact,
+    ManifestEntry,
+    TaskArgs,
+)
 from icij_common.pydantic_utils import make_enum_discriminator, tagged_union
 from pydantic import Discriminator, Field, RootModel
 
@@ -23,12 +29,26 @@
 DocId = str
 
 
-class ASRArgs(DatashareModel):
+class TranscriptionManifestEntry(ManifestEntry):
+    confidence: float | None
+
+
+class TranscriptionArtifact(DocArtifact):
+    filename: ClassVar[str] = "transcription.json"
+    type: ClassVar[ArtifactType] = ArtifactType.ASR_TRANSCRIPTION
+
+
+class ASRArgs(TaskArgs):
     project: str
     docs: list[DocId] | DocumentSearchQuery
     config: ASRPipelineConfig = Field(default_factory=ASRPipelineConfig.parakeet)
     batch_size: int
 
+    def as_manifest_task_input(self) -> dict[str, Any]:
+        as_entry = super().as_manifest_task_input()
+        as_entry.pop("docs")
+        return as_entry
+
 
 class ASRResponse(DatashareModel):
     n_transcribed: int
diff --git a/workers/asr-worker/asr_worker/workflows.py b/workers/asr-worker/asr_worker/workflows.py
index f6403a1d..aa572c89 100644
--- a/workers/asr-worker/asr_worker/workflows.py
+++ b/workers/asr-worker/asr_worker/workflows.py
@@ -89,7 +89,7 @@ async def run(self, args: ASRArgs) -> ASRResponse:
                 inference_results,
                 batch_paths,
                 repeat(config.postprocessing),
-                repeat(args.project),
+                repeat(args),
                 strict=False,
             )
         )
diff --git a/workers/asr-worker/tests/test_activities.py b/workers/asr-worker/tests/test_activities.py
index 3d569622..97d8d930 100644
--- a/workers/asr-worker/tests/test_activities.py
+++ b/workers/asr-worker/tests/test_activities.py
@@ -14,7 +14,7 @@
     write_audio_batches,
 )
 from asr_worker.config import ASRWorkerConfig
-from asr_worker.objects import DocId, Transcription
+from asr_worker.objects import ASRArgs, DocId, Transcription, TranscriptionManifestEntry
 from caul.objects import ASRResult, InputMetadata, PreprocessedInput, PreprocessorOutput
 from caul.tasks import InferenceRunner, Postprocessor, Preprocessor
 from datashare_python.conftest import TEST_PROJECT
@@ -265,6 +265,7 @@ async def test_infer_act(tmpdir: Path) -> None:
 
 def test_postprocess_act(tmpdir: Path) -> None:
     # Given
+    args = ASRArgs(project=TEST_PROJECT, docs=[], batch_size=2)
     postprocessor = MockPostprocessor()
     project = TEST_PROJECT
     artifacts_root = Path(tmpdir)
@@ -273,9 +274,9 @@ def test_postprocess_act(tmpdir: Path) -> None:
     postprocess_act(
         postprocessor,
         INFERENCE_RESULTS,
-        doc_ids=doc_ids,
+        doc_ids,
+        args,
         artifacts_root=artifacts_root,
-        project=project,
     )
     # Then
     expected_artifact_dirs = [
@@ -285,11 +286,16 @@ def test_postprocess_act(tmpdir: Path) -> None:
     ]
     for res, d in zip(INFERENCE_RESULTS, expected_artifact_dirs, strict=True):
         assert d.exists()
-        metadata_path = d / "metadata.json"
-        assert metadata_path.exists()
-        metadata = json.loads(metadata_path.read_text())
-        assert metadata["transcription"] == "transcription.json"
-        transcription_path = d / metadata["transcription"]
+        manifest_path = d / "manifest.json"
+        assert manifest_path.exists()
+        manifest = json.loads(manifest_path.read_text())
+        assert "transcription" in manifest
+        manifest_entry = TranscriptionManifestEntry.model_validate(
+            manifest["transcription"]
+        )
+        assert manifest_entry.confidence == 1
+        assert manifest_entry.input
+        transcription_path = d / "transcription.json"
         assert transcription_path.exists()
         transcription = Transcription.model_validate_json(
             transcription_path.read_text()
diff --git a/workers/asr-worker/tests/test_workflows.py b/workers/asr-worker/tests/test_workflows.py
index cdad3a67..4cb2c0f5 100644
--- a/workers/asr-worker/tests/test_workflows.py
+++ b/workers/asr-worker/tests/test_workflows.py
@@ -14,11 +14,12 @@
     Timestamp,
     Transcript,
     Transcription,
+    TranscriptionManifestEntry,
 )
 from asr_worker.workflows import ASRWorkflow, TaskQueues
 from caul.objects import ASRResult
 from datashare_python.conftest import TEST_PROJECT
-from datashare_python.objects import FilesystemDocument
+from datashare_python.objects import FilesystemDocument, ManifestEntryStatus
 from datashare_python.types_ import TemporalClient
 from datashare_python.worker import worker_context
 from pydantic import TypeAdapter
@@ -181,12 +182,14 @@ async def test_asr_workflow_e2e(
     for d in expected_artifact_dirs:
         assert d.exists()
         assert d.is_dir()
-        meta_path = d / "metadata.json"
-        assert meta_path.exists()
-        meta = json.loads(meta_path.read_text())
-        transcription_name = meta.get("transcription")
-        assert transcription_name is not None
-        transcription_path = d / transcription_name
+        manifest_path = d / "manifest.json"
+        assert manifest_path.exists()
+        manifest = json.loads(manifest_path.read_text())
+        asr_manifest_entry = TranscriptionManifestEntry.model_validate(
+            manifest["transcription"]
+        )
+        assert asr_manifest_entry.status is ManifestEntryStatus.COMPLETE
+        transcription_path = d / "transcription.json"
         assert transcription_path.exists()
         transcription = Transcription.model_validate_json(
             transcription_path.read_text()
diff --git a/workers/asr-worker/uv.dist.lock b/workers/asr-worker/uv.dist.lock
index 3ec6a446..e34fee6b 100644
--- a/workers/asr-worker/uv.dist.lock
+++ b/workers/asr-worker/uv.dist.lock
@@ -563,7 +563,7 @@ dev = [
 
 [[package]]
 name = "datashare-python"
-version = "0.9.4"
+version = "0.9.5"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "aiohttp", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
@@ -581,9 +581,9 @@ dependencies = [
     { name = "tomlkit", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
     { name = "typer", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/b0/1e/b6dcacb07a29f526151c98003e1c97e0b8ed0a19692abb217f9477ee80ee/datashare_python-0.9.4.tar.gz", hash = "sha256:2ab6bd6b4237f8474e61b21335441b311e84d3d0d3b6a8441fd0f33558bc790a", size = 320672, upload-time = "2026-06-23T09:25:20.411Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/cc/6a/cb3c7c3073573c6ad0cf56cd6c6b6c97dbd1dbd6392ec0314e78865c9dee/datashare_python-0.9.5.tar.gz", hash = "sha256:9ff757584b46bf95af74a1c890734d3233f02f54724806ec9b346a04c39e311a", size = 320645, upload-time = "2026-06-23T12:11:01.145Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/29/5c/cf9c94901a93a275f366c1e64418dc7c5eb217baede67ce21ec273d0ddb1/datashare_python-0.9.4-py3-none-any.whl", hash = "sha256:1ade134e1584d5c32255418eeedf5f5c7c6383d931a593f7765fd26b17114ff7", size = 326668, upload-time = "2026-06-23T09:25:21.423Z" },
+    { url = "https://files.pythonhosted.org/packages/1b/27/826ac48804b0bda7a35260fdc925ff25fda3fcc527da32c4c484461ed8d2/datashare_python-0.9.5-py3-none-any.whl", hash = "sha256:c1dce1b981342dc9a3e80d3bfd3246d4e774d55c116a37321e31ac2b39d4ae08", size = 326631, upload-time = "2026-06-23T12:10:59.749Z" },
 ]
 
 [[package]]
diff --git a/workers/asr-worker/uv.lock b/workers/asr-worker/uv.lock
index 6fdbb449..e49ee42e 100644
--- a/workers/asr-worker/uv.lock
+++ b/workers/asr-worker/uv.lock
@@ -563,7 +563,7 @@ dev = [
 
 [[package]]
 name = "datashare-python"
-version = "0.9.5"
+version = "0.9.8"
 source = { editable = "../../datashare-python" }
 dependencies = [
     { name = "aiohttp", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
@@ -572,7 +572,6 @@ dependencies = [
     { name = "icij-common", extra = ["elasticsearch"], marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
     { name = "langcodes", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
     { name = "lru-dict", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
-    { name = "orjson", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
     { name = "pydantic-extra-types", extra = ["pycountry"], marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
     { name = "python-json-logger", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
     { name = "pyyaml", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
@@ -586,10 +585,9 @@ requires-dist = [
     { name = "aiohttp", specifier = "~=3.11" },
     { name = "alive-progress", specifier = "~=3.2" },
     { name = "hatchling", specifier = "~=1.27" },
-    { name = "icij-common", extras = ["elasticsearch"], specifier = "~=0.8.2" },
+    { name = "icij-common", extras = ["elasticsearch"], specifier = "~=0.8.3" },
     { name = "langcodes", specifier = "~=3.5" },
     { name = "lru-dict", specifier = "~=1.4" },
-    { name = "orjson", specifier = "~=3.11" },
     { name = "pydantic-extra-types", extras = ["pycountry"], specifier = ">=2.11.1" },
     { name = "python-json-logger", specifier = "~=4.0" },
     { name = "pyyaml", specifier = "~=6.0" },
@@ -870,16 +868,16 @@ wheels = [
 
 [[package]]
 name = "icij-common"
-version = "0.8.2"
+version = "0.8.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "aiostream", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
     { name = "pydantic", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
     { name = "pydantic-settings", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-20-datashare-asr-worker-cpu' and extra == 'extra-20-datashare-asr-worker-gpu')" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/e0/51/91d85cc23e275bb51a5cae47873af9a7160f62797b25663d902cf38e6ab7/icij_common-0.8.2.tar.gz", hash = "sha256:7db68266d8facb43142131d81e998cd74c6ae73508456743e00df43a15cc2995", size = 15937, upload-time = "2026-04-07T12:13:39.774Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/6a/8d/4b2b9bb7dcac24d8bf514ccf2da6465ca3cd9b4c4f4bde0a1c97e681d595/icij_common-0.8.3.tar.gz", hash = "sha256:009dda7c1d688ecf7705cf88517deb3d0abe02300b42c8c433eb36516462fe75", size = 16161, upload-time = "2026-07-03T09:43:50.837Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/15/5a/99d123230023124ba4ec67765feb2a04b656ae1f473a14f6b29cc54b02bf/icij_common-0.8.2-py3-none-any.whl", hash = "sha256:c5a1a3ccd54e7bf53acad293a0af50ab15156b225791b43383197b896bae955f", size = 20565, upload-time = "2026-04-07T12:13:38.709Z" },
+    { url = "https://files.pythonhosted.org/packages/1c/8e/99879d623fdf4e2371e44135dcf690d7f43b921616e4c918633fe4cece48/icij_common-0.8.3-py3-none-any.whl", hash = "sha256:5214cbb73dca364cca16005f5fac3c2f3944acab6dea269a68d26f631e39a348", size = 21030, upload-time = "2026-07-03T09:43:49.934Z" },
 ]
 
 [package.optional-dependencies]
@@ -2012,22 +2010,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/ac/24/7c731839566d30dc70556d9824ef17692d896c15e3df627bce8c16f753e1/optuna-4.8.0-py3-none-any.whl", hash = "sha256:c57a7682679c36bfc9bca0da430698179e513874074b71bebedb0334964ab930", size = 419456, upload-time = "2026-03-16T04:59:56.977Z" },
 ]
 
-[[package]]
-name = "orjson"
-version = "3.11.9"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/7e/0c/964746fcafbd16f8ff53219ad9f6b412b34f345c75f384ad434ceaadb538/orjson-3.11.9.tar.gz", hash = "sha256:4fef17e1f8722c11587a6ef18e35902450221da0028e65dbaaa543619e68e48f", size = 5599163, upload-time = "2026-05-06T15:11:08.309Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/1e/51/3fb9e65ae76ee97bd611869a503fa3fc0a6e81dd8b737cf3003f682df7ff/orjson-3.11.9-cp311-cp311-macosx_10_15_x86_64.macosx_11_0_arm64.macosx_10_15_universal2.whl", hash = "sha256:f01c4818b3fc9b0da8e096722a84318071eaa118df35f6ed2344da0e73a5444f", size = 228522, upload-time = "2026-05-06T15:09:35.362Z" },
-    { url = "https://files.pythonhosted.org/packages/16/fa/9d54b07cb3f3b0bfd57841478e42d7a0ece4a9f49f9907eecf5a45461687/orjson-3.11.9-cp311-cp311-macosx_15_0_arm64.whl", hash = "sha256:3ebca4179031ee716ed076ffadc29428e900512f6fccee8614c9983157fcf19c", size = 128463, upload-time = "2026-05-06T15:09:37.063Z" },
-    { url = "https://files.pythonhosted.org/packages/49/bd/360686f39348aa88827cb6fbf7dc606fd41c831a35235e1abf1db8e3a9e6/orjson-3.11.9-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:147302878da387104b66bb4a8b0227d1d487e976ce41a8501916161072ed87b1", size = 133971, upload-time = "2026-05-06T15:09:45.239Z" },
-    { url = "https://files.pythonhosted.org/packages/b6/8a/4081492586d75b073d60c5271a8d0f05a0955cabf1e34c8473f6fcd84235/orjson-3.11.9-cp311-cp311-musllinux_1_2_x86_64.whl", hash = "sha256:63e0efbc991250c0b3143488fa57d95affcabbfc63c99c48d625dd37779aafe2", size = 136959, upload-time = "2026-05-06T15:09:51.311Z" },
-    { url = "https://files.pythonhosted.org/packages/16/6d/11867a3ffa3a3608d84a4de51ef4dd0896d6b5cc9132fbe1daf593e677bc/orjson-3.11.9-cp312-cp312-macosx_10_15_x86_64.macosx_11_0_arm64.macosx_10_15_universal2.whl", hash = "sha256:9ef6fe90aadef185c7b128859f40beb24720b4ecea95379fc9000931179c3a49", size = 228515, upload-time = "2026-05-06T15:09:57.265Z" },
-    { url = "https://files.pythonhosted.org/packages/24/75/05912954c8b288f34fcf5cd4b9b071cb4f6e77b9961e175e56ebb258089f/orjson-3.11.9-cp312-cp312-macosx_15_0_arm64.whl", hash = "sha256:e5c9b8f28e726e97d97696c826bc7bea5d71cecd63576dba92924a32c1961291", size = 128409, upload-time = "2026-05-06T15:09:59.063Z" },
-    { url = "https://files.pythonhosted.org/packages/0e/a4/82b7a2fe5d8a67a59ed831b24d59a3d46ea7d207b66e1602d376541d94a6/orjson-3.11.9-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:be4fa4f0af7fa18951f7ab3fc2148e223af211bf03f59e1c6034ec3f97f21d61", size = 134014, upload-time = "2026-05-06T15:10:08.213Z" },
-    { url = "https://files.pythonhosted.org/packages/df/e5/4d2d8af06f788329b4f78f8cc3679bb395392fcaa1e4d8d3c33e85308fa4/orjson-3.11.9-cp312-cp312-musllinux_1_2_x86_64.whl", hash = "sha256:71e63adb0e1f1ed5d9e168f50a91ceb93ae6420731d222dc7da5c69409aa47aa", size = 136943, upload-time = "2026-05-06T15:10:14.405Z" },
-]
-
 [[package]]
 name = "overrides"
 version = "7.7.0"
diff --git a/workers/extract-worker/extract_worker/activities.py b/workers/extract-worker/extract_worker/activities.py
index 86014a39..b0d78760 100644
--- a/workers/extract-worker/extract_worker/activities.py
+++ b/workers/extract-worker/extract_worker/activities.py
@@ -3,13 +3,17 @@
 import mimetypes
 import os
 from collections.abc import AsyncIterable
-from functools import cache
+from functools import cache, partial
 from itertools import chain
 from pathlib import Path
 from typing import Any, cast
 
 from datashare_python.dependencies import lifespan_es_client, lifespan_worker_config
-from datashare_python.objects import DocArtifact, Document, DocumentLocation
+from datashare_python.objects import (
+    ByteRangesPagination,
+    Document,
+    DocumentLocation,
+)
 from datashare_python.types_ import AsyncProgressRateHandler
 from datashare_python.utils import (
     ActivityWithProgress,
@@ -46,15 +50,17 @@
 from temporalio import activity
 
 from .config import ExtractWorkerConfig
-from .constants import MARKDOWN_DIRNAME, MARKDOWN_METADATA_KEY
 from .mimetypes_ import types_map
 from .objects import (
     DocId,
     DocumentSearchQuery,
     ErrorReport,
+    MarkdownExtractArgs,
     MarkdownExtractResponse,
     ProcessedDoc,
     ProcessingReport,
+    StructureArtifact,
+    StructureManifestEntry,
 )
 
 logger = logging.getLogger(__name__)
@@ -106,8 +112,7 @@ async def create_markdown_extract_batches(
     async def extract_markdown_content(
         self,
         batch: Path,
-        project: str,
-        config: PipelineConfig,
+        args: MarkdownExtractArgs,
         *,
         progress: AsyncProgressRateHandler | None = None,
     ) -> MarkdownExtractResponse:
@@ -118,16 +123,17 @@ async def extract_markdown_content(
             MinerUPipeline,
         )
 
-        pipeline = Pipeline.from_config(config)
+        pipeline = Pipeline.from_config(args.config)
         worker_config = cast(ExtractWorkerConfig, lifespan_worker_config())
         workdir = worker_config.workdir
-        output_dir = activity_workdir(workdir, project)
+        output_dir = activity_workdir(workdir, args.project)
         output_dir.mkdir(parents=True, exist_ok=True)
         batch = workdir / batch
         logger.debug("extracting doc content as markdown...")
         res = await extract_markdown_content_act(
             pipeline,
             batch,
+            args,
             worker_config=worker_config,
             output_dir=output_dir,
             progress=progress,
@@ -169,6 +175,7 @@ async def create_markdown_extract_batches_act(
 async def extract_markdown_content_act(
     pipeline: Pipeline,
     batch: Path,
+    args: MarkdownExtractArgs,
     *,
     worker_config: ExtractWorkerConfig,
     output_dir: Path,
@@ -194,8 +201,9 @@ async def extract_markdown_content_act(
     docs = iter(docs)
     n_docs, n_pages, n_successes, n_successes_pages = 0, 0, 0, 0
     errors = []
+    manifest_entry_factory = partial(StructureManifestEntry.complete, args=args)
     async for extract_res in results:
-        # Heartbeat explicitely to avoid heartbeat timeout
+        # Heartbeat explicitly to avoid heartbeat timeout
         with contextlib.suppress(RuntimeError):
             activity.heartbeat()
         doc = next(docs)
@@ -210,12 +218,16 @@ async def extract_markdown_content_act(
             n_successes += 1
             n_successes_pages += doc.n_pages
             md_path = output_dir / extract_res.output.path
-            artifact = DocArtifact(
+            pages = extract_res.output.pages
+            pages = ByteRangesPagination(
+                total=pages.total, byte_ranges=pages.byte_ranges
+            )
+            manifest_entry = manifest_entry_factory(pages=pages)
+            artifact = StructureArtifact(
                 project=doc.index,
                 doc_id=doc.id,
                 artifact=md_path,
-                metadata_key=MARKDOWN_METADATA_KEY,
-                filename=MARKDOWN_DIRNAME,
+                manifest_entry=manifest_entry,
             )
             write_artifact(artifacts_root, artifact)
         if progress is not None:
diff --git a/workers/extract-worker/extract_worker/objects.py b/workers/extract-worker/extract_worker/objects.py
index 844792be..c16a4e9f 100644
--- a/workers/extract-worker/extract_worker/objects.py
+++ b/workers/extract-worker/extract_worker/objects.py
@@ -1,6 +1,14 @@
-from typing import Any, Self
-
-from datashare_python.objects import DatashareModel, FilesystemDocument
+from typing import Any, ClassVar, Self
+
+from datashare_python.objects import (
+    ArtifactType,
+    ByteRangesPagination,
+    DatashareModel,
+    DocArtifact,
+    FilesystemDocument,
+    ManifestEntry,
+    TaskArgs,
+)
 from extract_core import (
     DoclingPipelineConfig,
     Error,
@@ -21,11 +29,26 @@
 pipeline_discriminator = make_enum_discriminator("pipeline", PipelineType)
 
 
-class MarkdownExtractArgs(DatashareModel):
+class MarkdownExtractArgs(TaskArgs):
     project: str
     docs: list[DocId] | DocumentSearchQuery | None
     config: PipelineConfig = Field(default_factory=DoclingPipelineConfig)
 
+    def as_manifest_task_input(self) -> dict[str, Any]:
+        as_entry = super().as_manifest_task_input()
+        as_entry.pop("docs")
+        return as_entry
+
+
+class StructureArtifact(DocArtifact):
+    filename: ClassVar[str] = "structure"
+    type: ClassVar[ArtifactType] = ArtifactType.STRUCTURE
+
+
+class StructureManifestEntry(ManifestEntry):
+    confidence: float | None = None
+    pages: ByteRangesPagination
+
 
 class ProcessingReport(DatashareModel):
     n_docs: int = 0
diff --git a/workers/extract-worker/extract_worker/workflows.py b/workers/extract-worker/extract_worker/workflows.py
index 53712a1c..19221898 100644
--- a/workers/extract-worker/extract_worker/workflows.py
+++ b/workers/extract-worker/extract_worker/workflows.py
@@ -44,7 +44,7 @@ async def run(self, args: MarkdownExtractArgs) -> MarkdownExtractResponse:
         # Extract Markdown content
         # Distribute batches docs with (more or less) constant number of page per batch,
         # across workers
-        extract_args = [(b, args.project, args.config) for b in extract_batches]
+        extract_args = [(b, args) for b in extract_batches]
         task_queue = worker_config.device.md_extract_queue(args.config.pipeline)
         extract_acts = (
             execute_activity(
diff --git a/workers/extract-worker/pyproject.toml b/workers/extract-worker/pyproject.toml
index f709047e..733b1541 100644
--- a/workers/extract-worker/pyproject.toml
+++ b/workers/extract-worker/pyproject.toml
@@ -10,13 +10,13 @@ readme = "README.md"
 requires-python = ">=3.13,<3.15"
 dependencies = [
   "datashare-python~=0.9.0",
-  "extract-core==0.6.0",
+  "extract-core==0.7.0",
   "temporalio==1.23.0",
 ]
 
 [project.optional-dependencies]
 base = [
-  "extract-python[docling,marker]==0.6.0",
+  "extract-python[docling,marker]==0.7.2",
   "opencv-python-headless==4.11.0.86"
 ]
 cpu = [
@@ -32,7 +32,7 @@ flash-attn = [
   "flash-attn==2.8.3.post1",
 ]
 mineru = [
-  "extract-python[mineru]==0.6.0",
+  "extract-python[mineru]==0.7.2",
   "opencv-python-headless==4.11.0.86"
 ]
 
@@ -50,7 +50,7 @@ worker_config_cls = "extract_worker.config:WORKER_CONFIG_CLS"
 
 [dependency-groups]
 dev = [
-  "extract-python[docling]==0.6.0",
+  "extract-python[docling]==0.7.2",
   "black>=26.1.0",
   "nest-asyncio>=1.6.0",
   "pre-commit>=4.5.1",
diff --git a/workers/extract-worker/tests/test_activities.py b/workers/extract-worker/tests/test_activities.py
index ce9bf858..88f37175 100644
--- a/workers/extract-worker/tests/test_activities.py
+++ b/workers/extract-worker/tests/test_activities.py
@@ -6,10 +6,10 @@
 
 import pytest
 from datashare_python.conftest import TEST_PROJECT
-from datashare_python.objects import DocumentLocation
+from datashare_python.objects import ArtifactType, DocumentLocation, ManifestEntryStatus
 from datashare_python.utils import read_jsonl
 from extract_core import InputDoc, OutputFormat, Pipeline, Result, Status
-from extract_core.objects import ConversionOutput, Error, PageIndexes, SupportedExt
+from extract_core.objects import ConversionOutput, Error, Pages, SupportedExt
 from extract_worker.activities import (
     _build_doc_query,
     create_markdown_extract_batches_act,
@@ -21,9 +21,11 @@
     DocId,
     DocumentSearchQuery,
     ErrorReport,
+    MarkdownExtractArgs,
     MarkdownExtractResponse,
     ProcessedDoc,
     ProcessingReport,
+    StructureManifestEntry,
 )
 from icij_common.es import ESClient, ids_query, match_all
 from icij_common.registrable import FromConfig, RegistrableConfig
@@ -120,7 +122,9 @@ async def test_create_markdown_extraction_batches_act(
 _RES_0 = Result(
     input=InputDoc(ext=SupportedExt.PDF, path=Path("doc-0.pdf")),
     status=Status.SUCCESS,
-    output=ConversionOutput(path=Path("markdown"), pages=PageIndexes(root=[(0, 1)])),
+    output=ConversionOutput(
+        path=Path("markdown"), pages=Pages(total=2, byte_ranges=[(0, 1), (1, 2)])
+    ),
 )
 
 _RES_2_ERRORS = [Error(id="error-id", title="error-title", detail="error-detail")]
@@ -136,6 +140,7 @@ async def test_extract_markdown_content_act(
     test_worker_config: ExtractWorkerConfig,
 ) -> None:
     # Given
+    args = MarkdownExtractArgs(project=TEST_PROJECT, docs=[])
     batch = [PROCESSED_DOC_0, PROCESSED_DOC_2]
     extract_results = [_RES_0, _RES_2]
     pipeline = MockPipeline(extract_results)
@@ -151,6 +156,7 @@ async def test_extract_markdown_content_act(
     # When
     res = await extract_markdown_content_act(
         pipeline,
+        args=args,
         batch=batch_path,
         worker_config=test_worker_config,
         output_dir=output_dir,
@@ -169,12 +175,16 @@ async def test_extract_markdown_content_act(
     d = artifacts_root / TEST_PROJECT / "do" / "c-" / "doc-0"
     assert d.exists()
     assert d.is_dir()
-    meta_path = d / "metadata.json"
+    meta_path = d / "manifest.json"
     assert meta_path.exists()
-    meta = json.loads(meta_path.read_text())
-    md_dir = meta.get("extract.markdown")
-    assert md_dir is not None
-    md_dir = d / md_dir
+    manifest = json.loads(meta_path.read_text())
+    entry = StructureManifestEntry.model_validate(
+        manifest[ArtifactType.STRUCTURE.value]
+    )
+    assert entry.status is ManifestEntryStatus.COMPLETE
+    assert entry.pages.byte_ranges
+    assert entry.pages.total == 2
+    md_dir = d / "structure"
     assert md_dir.exists()
     assert md_dir.is_dir()
 
diff --git a/workers/extract-worker/uv.dist.lock b/workers/extract-worker/uv.dist.lock
index 0025d86b..d9f3fd1e 100644
--- a/workers/extract-worker/uv.dist.lock
+++ b/workers/extract-worker/uv.dist.lock
@@ -597,9 +597,9 @@ dev = [
 requires-dist = [
     { name = "cuda-bindings", marker = "sys_platform == 'linux' and extra == 'gpu'", specifier = "==12.9.4" },
     { name = "datashare-python", specifier = "~=0.9.0" },
-    { name = "extract-core", specifier = "==0.6.0" },
-    { name = "extract-python", extras = ["docling", "marker"], marker = "extra == 'base'", specifier = "==0.6.0" },
-    { name = "extract-python", extras = ["mineru"], marker = "extra == 'mineru'", specifier = "==0.6.0" },
+    { name = "extract-core", specifier = "==0.7.0" },
+    { name = "extract-python", extras = ["docling", "marker"], marker = "extra == 'base'", specifier = "==0.7.2" },
+    { name = "extract-python", extras = ["mineru"], marker = "extra == 'mineru'", specifier = "==0.7.2" },
     { name = "flash-attn", marker = "extra == 'flash-attn'", specifier = "==2.8.3.post1" },
     { name = "opencv-python-headless", marker = "extra == 'base'", specifier = "==4.11.0.86" },
     { name = "opencv-python-headless", marker = "extra == 'mineru'", specifier = "==4.11.0.86" },
@@ -614,7 +614,7 @@ provides-extras = ["base", "cpu", "flash-attn", "gpu", "mineru"]
 [package.metadata.requires-dev]
 dev = [
     { name = "black", specifier = ">=26.1.0" },
-    { name = "extract-python", extras = ["docling"], specifier = "==0.6.0" },
+    { name = "extract-python", extras = ["docling"], specifier = "==0.7.2" },
     { name = "nest-asyncio", specifier = ">=1.6.0" },
     { name = "pre-commit", specifier = ">=4.5.1" },
     { name = "psutil", specifier = ">=6.1.0" },
@@ -628,7 +628,7 @@ dev = [
 
 [[package]]
 name = "datashare-python"
-version = "0.9.7"
+version = "0.9.8"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "aiohttp", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
@@ -644,9 +644,9 @@ dependencies = [
     { name = "tomlkit", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
     { name = "typer", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/d4/54/d917201590f70bcae62557b5882513538e4f3a2545907cacf3d299c1d606/datashare_python-0.9.7.tar.gz", hash = "sha256:841b9cb62f7c1835be17f1d6d72ccd33bf20120b72dbd3f10c5d43d0d2dcb32e", size = 320939, upload-time = "2026-06-30T11:45:10.182Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/9f/3c/a8d28a86627a8967d65070500ed1999434aa556b918c32c0029e9d3a998a/datashare_python-0.9.8.tar.gz", hash = "sha256:8b8a56780446827b77032d4eed402c9733a8399df6f301322d2577fdb19255c9", size = 320930, upload-time = "2026-07-02T08:08:16.289Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/37/fa/7c3845a7f81fbce104f2b146dada4b8d00f81d3c29d07fe043b7527de3a7/datashare_python-0.9.7-py3-none-any.whl", hash = "sha256:f9329a269c62cd94e753cc6b255553aa2ad96f8b598537100a9e8cc4fff3929c", size = 327003, upload-time = "2026-06-30T11:45:08.685Z" },
+    { url = "https://files.pythonhosted.org/packages/71/2f/7f7f6aa1f670b3ab7d6cd6bc862ced5a2e499a14fe35a8a6629f6e0b2c98/datashare_python-0.9.8-py3-none-any.whl", hash = "sha256:ec3595ffb45e7eb45f0556813be0f278a7c779584579dab435eb88ff05703734", size = 327002, upload-time = "2026-07-02T08:08:14.688Z" },
 ]
 
 [[package]]
@@ -900,7 +900,7 @@ wheels = [
 
 [[package]]
 name = "extract-core"
-version = "0.6.0"
+version = "0.7.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "docling-slim", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
@@ -910,22 +910,22 @@ dependencies = [
     { name = "pydantic", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
     { name = "pydantic-extra-types", extra = ["pycountry"], marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/32/4c/554c22607bad87040e8df2bd433012578f92dae6431715bed05eb7198340/extract_core-0.6.0.tar.gz", hash = "sha256:2a177d910adbb249529a05591dc6bbf447fc17988c97f9de3893366707f074c6", size = 138321, upload-time = "2026-06-24T09:03:22.464Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/e6/ea/1bbc3485d0570455ca874aa84b4f02c4b4d509123710fe1832c02acca08c/extract_core-0.7.0.tar.gz", hash = "sha256:09bfef043c84afb11dd0d50582044cee7c6a5d3cdf95788067d90904b737dd80", size = 138372, upload-time = "2026-06-25T09:25:17.672Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/4b/fe/75c11eddf0b8bdec342cd067e3e4a69071e648c204f518902d0f62979e82/extract_core-0.6.0-py3-none-any.whl", hash = "sha256:488b7e08adf83e2390990bccb8b34e1339d17ab2178a5e18ddb48c6af1cc3130", size = 10349, upload-time = "2026-06-24T09:03:21.305Z" },
+    { url = "https://files.pythonhosted.org/packages/d4/41/2eb44fcd9b33d9a4da7d61691f2eea3ebbad565288601d1b8169d2f169f7/extract_core-0.7.0-py3-none-any.whl", hash = "sha256:51d7cb28fcc8173a34e20862a236354f5da35e2bd0156d0001650e22d6e655d3", size = 10414, upload-time = "2026-06-25T09:25:18.496Z" },
 ]
 
 [[package]]
 name = "extract-python"
-version = "0.6.0"
+version = "0.7.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "extract-core", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
     { name = "icij-common", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/e1/4b/15036758830b70486469b9624b8ace188ed5ae6b618f1af179821896f5b5/extract_python-0.6.0.tar.gz", hash = "sha256:e9771f945ef902a268714c28110b3815e14b7e6cbdb92724c4f8b03ee3042f15", size = 259177, upload-time = "2026-06-24T09:03:18.575Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/26/a0/b7431c5d00be20b3f6e4f9ed767bc570348a67228b81d0c0d3edea76f160/extract_python-0.7.2.tar.gz", hash = "sha256:e05186ac6a27abf47033458c1b395469c523fb91d4c60cc0ce7ee78119084c68", size = 259201, upload-time = "2026-06-29T14:08:42.131Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/fd/a5/266ec0663ad62995f054f7e1a3a987ba875be835750a14004b856e4bd748/extract_python-0.6.0-py3-none-any.whl", hash = "sha256:45eda3595ab25d41b0916934fa3dfd27efa48d88ef49f8c39a333009df75a25b", size = 9207, upload-time = "2026-06-24T09:03:19.495Z" },
+    { url = "https://files.pythonhosted.org/packages/60/1b/fc2a47c3919496ac5370150bddab5eb4c44006fc78c33ae90b8d6bb69866/extract_python-0.7.2-py3-none-any.whl", hash = "sha256:34ffc721a031b653c5c15841beb0ea07ee9ec34e1294004e23924bf0a4a7af2b", size = 9134, upload-time = "2026-06-29T14:08:41.132Z" },
 ]
 
 [package.optional-dependencies]
diff --git a/workers/extract-worker/uv.lock b/workers/extract-worker/uv.lock
index a700f405..a4891f6f 100644
--- a/workers/extract-worker/uv.lock
+++ b/workers/extract-worker/uv.lock
@@ -597,9 +597,9 @@ dev = [
 requires-dist = [
     { name = "cuda-bindings", marker = "sys_platform == 'linux' and extra == 'gpu'", specifier = "==12.9.4" },
     { name = "datashare-python", editable = "../../datashare-python" },
-    { name = "extract-core", specifier = "==0.6.0" },
-    { name = "extract-python", extras = ["docling", "marker"], marker = "extra == 'base'", specifier = "==0.6.0" },
-    { name = "extract-python", extras = ["mineru"], marker = "extra == 'mineru'", specifier = "==0.6.0" },
+    { name = "extract-core", specifier = "==0.7.0" },
+    { name = "extract-python", extras = ["docling", "marker"], marker = "extra == 'base'", specifier = "==0.7.2" },
+    { name = "extract-python", extras = ["mineru"], marker = "extra == 'mineru'", specifier = "==0.7.2" },
     { name = "flash-attn", marker = "extra == 'flash-attn'", specifier = "==2.8.3.post1" },
     { name = "opencv-python-headless", marker = "extra == 'base'", specifier = "==4.11.0.86" },
     { name = "opencv-python-headless", marker = "extra == 'mineru'", specifier = "==4.11.0.86" },
@@ -614,7 +614,7 @@ provides-extras = ["base", "cpu", "flash-attn", "gpu", "mineru"]
 [package.metadata.requires-dev]
 dev = [
     { name = "black", specifier = ">=26.1.0" },
-    { name = "extract-python", extras = ["docling"], specifier = "==0.6.0" },
+    { name = "extract-python", extras = ["docling"], specifier = "==0.7.2" },
     { name = "nest-asyncio", specifier = ">=1.6.0" },
     { name = "pre-commit", specifier = ">=4.5.1" },
     { name = "psutil", specifier = ">=6.1.0" },
@@ -628,7 +628,7 @@ dev = [
 
 [[package]]
 name = "datashare-python"
-version = "0.9.7"
+version = "0.9.8"
 source = { editable = "../../datashare-python" }
 dependencies = [
     { name = "aiohttp", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
@@ -650,7 +650,7 @@ requires-dist = [
     { name = "aiohttp", specifier = "~=3.11" },
     { name = "alive-progress", specifier = "~=3.2" },
     { name = "hatchling", specifier = "~=1.27" },
-    { name = "icij-common", extras = ["elasticsearch"], specifier = "~=0.8.2" },
+    { name = "icij-common", extras = ["elasticsearch"], specifier = "~=0.8.3" },
     { name = "langcodes", specifier = "~=3.5" },
     { name = "lru-dict", specifier = "~=1.4" },
     { name = "pydantic-extra-types", extras = ["pycountry"], specifier = ">=2.11.1" },
@@ -927,7 +927,7 @@ wheels = [
 
 [[package]]
 name = "extract-core"
-version = "0.6.0"
+version = "0.7.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "docling-slim", marker = "(platform_machine == 'x86_64' and sys_platform == 'linux') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (platform_machine != 'x86_64' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu') or sys_platform == 'darwin' or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-base' and extra == 'extra-24-datashare-extract-worker-mineru') or (sys_platform != 'linux' and extra == 'extra-24-datashare-extract-worker-cpu' and extra == 'extra-24-datashare-extract-worker-gpu')" },
@@ -937,22 +937,22 @@ dependencies = [
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 [package.optional-dependencies]
@@ -1272,16 +1272,16 @@ wheels = [
 
 [[package]]
 name = "icij-common"
-version = "0.8.2"
+version = "0.8.3"
 source = { registry = "https://pypi.org/simple" }
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 [package.optional-dependencies]
diff --git a/workers/translation-worker/translation_worker/objects.py b/workers/translation-worker/translation_worker/objects.py
index 0716d830..72b6eced 100644
--- a/workers/translation-worker/translation_worker/objects.py
+++ b/workers/translation-worker/translation_worker/objects.py
@@ -4,6 +4,7 @@
 from datashare_python.objects import (
     DatashareModel,
     Language,
+    TaskArgs,
 )
 from icij_common.es import (
     DOC_CONTENT_TRANSLATED,
@@ -71,7 +72,7 @@ def untranslated_query(target: Language) -> dict:
     return query[QUERY]
 
 
-class TranslationArgs(DatashareModel):
+class TranslationArgs(TaskArgs):
     project: str
     docs: list[DocId] | DocumentSearchQuery | None = None
     config: "TranslationConfig"
diff --git a/workers/translation-worker/uv.lock b/workers/translation-worker/uv.lock
index 2d1e684e..6db81e81 100644
--- a/workers/translation-worker/uv.lock
+++ b/workers/translation-worker/uv.lock
@@ -437,7 +437,7 @@ wheels = [
 
 [[package]]
 name = "datashare-python"
-version = "0.9.5"
+version = "0.9.8"
 source = { editable = "../../datashare-python" }
 dependencies = [
     { name = "aiohttp" },
@@ -446,8 +446,6 @@ dependencies = [
     { name = "icij-common", extra = ["elasticsearch"] },
     { name = "langcodes" },
     { name = "lru-dict" },
-    { name = "nest-asyncio" },
-    { name = "orjson" },
     { name = "pydantic-extra-types", extra = ["pycountry"] },
     { name = "python-json-logger" },
     { name = "pyyaml" },
@@ -461,11 +459,9 @@ requires-dist = [
     { name = "aiohttp", specifier = "~=3.11" },
     { name = "alive-progress", specifier = "~=3.2" },
     { name = "hatchling", specifier = "~=1.27" },
-    { name = "icij-common", extras = ["elasticsearch"], specifier = "~=0.8.2" },
+    { name = "icij-common", extras = ["elasticsearch"], specifier = "~=0.8.3" },
     { name = "langcodes", specifier = "~=3.5" },
     { name = "lru-dict", specifier = "~=1.4" },
-    { name = "nest-asyncio", specifier = "~=1.6" },
-    { name = "orjson", specifier = "~=3.11" },
     { name = "pydantic-extra-types", extras = ["pycountry"], specifier = ">=2.11.1" },
     { name = "python-json-logger", specifier = "~=4.0" },
     { name = "pyyaml", specifier = "~=6.0" },
@@ -784,16 +780,16 @@ wheels = [
 
 [[package]]
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-version = "0.8.2"
+version = "0.8.3"
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