Clarify archive semantics and consolidate reader documentation

Consolidate the dataset card, correct stale acquisition documentation, clarify file and drawing identity and provenance, and move detailed snapshot comparisons and citation material into the release guide. Update the generated prose template and its existing wording assertion.

Validation: 150 tests passed with no skips; generated workflow views and native loading passed with zero video payload reads; 55 relative links and anchors checked. The eight files exactly match the reviewed handoff patch. All other 994 tracked paths, including media, indexes, registries, evidence, checksums and release manifests, are unchanged. README configuration front matter is byte-identical.

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Changelog
 
+## Unreleased — documentation consolidation
+
+- Focused the dataset card on collection selection, file/drawing identity,
+  timing interpretation, evidence limits, access, rights, and citation. Moved
+  detailed release comparisons and DOI BibTeX to the release guide and linked
+  the existing maintenance instructions.
+- Standardized archive totals as indexed video files; broadened provenance to
+  cover documented file origins and relationships; distinguished retrospective
+  dataset organization from prospective acquisition and downstream study design.
+- Replaced stale current-cohort counts in acquisition specifications with links
+  to generated coverage. Clarified the active 35-field schema.
+- Pinned the loading example to a revision containing all four configurations.
+  Updated only the workflow generator's documentation template and the existing
+  origin-wording assertion so regeneration and validation retain these edits.
+- Media, indexes, registry assignments, timing/relationship evidence, checksum
+  manifests, configuration front matter, and frozen releases are unchanged.
+
 ## Unreleased — September 19 two-drawing ingest
 
 - Added 14 unchanged-source Standard recordings: nine for the

README.md

@@ -1359,422 +1359,213 @@ configs:
 
 # Time-Lapse Artifacts
 
-**845 unique recording records:** 128 Pre-Standard, 364 earlier Standard, and
-353 Standard individual-recording records. These three groups do not overlap.
-
-**Persistent IDs:** every published recording has an archive-wide `record_id`
-(`tla-…`). Recordings confirmed to depict the same drawing share a `work_id`
-(`tlaw-…`): 374 recordings currently link to 39 confirmed drawings; drawing
-identity remains unresolved for the other 471 records.
-[Recording and drawing identities](#recording-and-drawing-identities)
-
-**Why the Hub shows 1,562 rows:** its aggregate counts the combined Standard
-view (717) as well as its two subdivisions (364 + 353), plus Pre-Standard (128).
-The 717 Standard records are therefore counted twice across views; there are
-still 845 unique recording records. For an archive-wide selection, use either
-`canonical` + `pre_standard`, or `pre_standard` + `standard_earlier` +
-`standard_individual_recordings`. Do not combine all four as independent records.
-
-## What this archive is
-
-Time-Lapse Artifacts contains 845 indexed video files documenting one
-artist's traditional drawing practice from
-September 17, 2024 through September 19, 2026, with standardized acquisition
-since July 13, 2025. The recordings began as personal practice documentation
-and a durable record of manual work. They were not created as a prospective
-scientific protocol; their organization as a dataset and any research or
-model-analysis uses are retrospective.
-
-Video is the primary published evidence. The archive follows the same creator
-working in physical media—including pencil, ballpoint pen, fountain pen, brush,
-graphite, and ink—on fixed-format paper and illustration board. Metadata
-identifies and organizes the recordings without turning undocumented details
-into facts.
-
-**Unit of record:** each active metadata row identifies one published MP4 video
-object. A row does not necessarily represent one drawing, one uninterrupted
-session, or a complete start-to-finish process. Use the persistent `record_id`
-to identify a record; filenames are descriptive and may be corrected.
-Fragment-sequence, timing, and physical-reference relationships live in
-separate revision-pinned sidecars joined by `record_id`. If a relationship or
-attribute is not documented, it remains unknown.
-
-In this dataset, provenance means the documented relationship between a
-physical drawing and its time-lapse record, not a history of ownership or sale.
-The collection is a single-creator longitudinal archive: it can support
-within-practice study, but it does not represent artists, materials, studios,
-or drawing practices broadly.
-
-## Recording and drawing identities
-
-`record_id` identifies one published recording file. The adjacent `work_id`
-identifies the drawing it is confirmed to depict; recordings of that same
-drawing share the same permanent `tlaw-…` value. These IDs apply across this
-archive's collections and views; they are not assigned separately per view.
-When combining sources, retain the dataset identity
-(`maxwellinked/time-lapse-artifacts`) alongside the ID and pin the repository
-revision used. There is no separate `global_id` column.
-
-The column is generated from the authoritative [work registry](Work_Identity/README.md).
-Currently 374 recordings link to 39 creator-confirmed drawings. The other 471
-recordings have a blank work ID, displayed as null in the Viewer: their drawing
-identity is unresolved. A blank does not mean a separate drawing. Membership
-alone does not establish complete or gapless capture, and different IDs are not
-verified negative pairs for a work-disjoint benchmark. Existing record IDs,
-filenames and download URLs remain unchanged.
-
-## Reading dates and recording starts
-
-**The time in a canonical video filename is a documented finish label.** For prospective
-`RecNN` groups, every recording shares the complete drawing/group's finish
-date and time; it is not that recording's start or individual stop time.
-For example, the twenty `2026-09-18.1444...RecNN.mp4` files share the drawing's
-14:44 finish label. Rec01's observed filename-derived start is 05:42:43 EDT;
-Rec02's is 06:36:21 EDT. Rec20's start is unknown.
-
-The Dataset Viewer places these timing columns after `record_id` and `work_id`:
-
-- `recording_start_local`: the original device-filename start, with its UTC
-  offset; blank when unavailable.
-- `recording_start_basis`: the evidence for that start, `unknown` within
-  reviewed timing coverage, or the existing `not_in_timing_snapshot` value
-  for records outside that coverage at the selected repository revision.
-- `documented_finish_date` and `documented_finish_time`: clearer names for the
-  existing finish labels; their scope is given by `finish_label_scope`.
-- `finish_label_scope`: `complete_drawing_or_group` for the prospective cohort,
-  `historical_scope_unspecified` for surviving historical labels, or `unknown`
-  where both finish labels are missing.
-
-These columns are a reproducible projection of the existing metadata and the
-[Current recording-time view](Standard_Time_Lapses/Provenance/Recording_Timing_Current/README.md),
-joined by permanent `record_id`. The view combines the unchanged 339-row Timing v2
-snapshot with 14 reviewed September 19 observations. It provides 175
-filename-derived starts and 178 unknown starts; 492 indexed records remain
-outside reviewed timing coverage. Twelve September 19 starts are interpreted
-from the already retained original device filenames; two starts remain unknown.
-No start is inferred from the shared finish label or encoded playback duration.
-The legacy `date` and `time` columns remain for compatibility. Previously published video
-filenames, download URLs and record IDs are unchanged. The Hub's Files list
-continues to display those filenames; use the Viewer columns for timing.
-
-## Status and coverage
-
-The latest tagged release is v0.7.0: its media baseline is pinned at
-`521f4ee62ee3843cf36394499c10bf33f07dcaae`; its 35-field indexes were verified
-in the hosted Viewer at `424f0d2090f5bb7a15d440a0f554914d2d745215`. The
-[release manifest](releases/RELEASE_MANIFEST_V0.7.0.json) binds the final
-documentation and exact file receipts. Earlier tagged and DOI releases remain separate snapshots. The historical September 17 ingestion baseline remains preserved
-at metadata-bearing revision `21648a6a76b9174d32a4a3314cbe490219fc2151`;
-later documented corrections, the September 18 append, and the August 20
-Rec02 backfill do not rewrite that historical receipt.
-
-| Snapshot | Standard | Pre-Standard | Indexed video files | Meaning |
-| --- | ---: | ---: | ---: | --- |
-| Current main after the September 19 append | 717 | 128 | **845** | Indexed media through 2026-09-19, including the August 20 Rec02 backfill; 2,186,833,793,374 indexed video bytes and 221,911.935724 encoded playback seconds |
-| Latest tagged release [`v0.7.0`](https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts/tree/v0.7.0) | 703 | 128 | **831** | 35-field indexes; media baseline `521f4ee6…`; 37 confirmed drawings and 360 recording links; 2,176,788,154,698 indexed video bytes and 61.102 encoded playback hours |
-| Previous tagged release [`v0.6.0`](https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts/tree/v0.6.0) | 629 | 128 | **757** | Immutable tagged snapshot validated at `0f3e0559…`; indexed media through 2026-09-16, 2,108,662,791,273 bytes (approximately 2.11 TB), 1.92 TiB, and 58.371 encoded playback hours |
-| DOI release [`v0.5.1`](https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts/tree/v0.5.1) | 581 | 128 | **709** | Immutable, citable historical snapshot registered as [`10.57967/hf/10449`](https://doi.org/10.57967/hf/10449) |
-
-The original configurations remain available, both using the split name `archive`:
-
-- `canonical/archive` is the default. It loads root [`metadata.csv`](metadata.csv)
-  and the direct files in `Standard_Time_Lapses/`. Core technical metadata is
-  complete for each indexed Standard file.
-- `pre_standard/archive` loads
-  [`Pre_Standard_Time_Lapses/metadata.csv`](Pre_Standard_Time_Lapses/metadata.csv)
-  and the direct files in that folder. These records cover the earlier public
-  period; nine dates and some historical descriptive or provenance fields
-  remain unknown.
-
-Both configurations expose the same 35-field schema: the original 29 fields,
-five explicit timing-display fields, and the confirmed drawing `work_id`. Nullable fields
-remain null when evidence is unavailable; null must not be read as zero, false,
-or proof that a property was absent. No official train, validation, or test
-partition has been defined.
-
-A separate 2012–2016 archival holding contains 2,381 locally held real-time
-recordings totaling 9,060,310,121,597 bytes (about 9.06 TB). Its
-[file-level holdings and SHA-256 manifest](Earlier_Archive_2012_2016/HOLDINGS_MANIFEST.json)
-is public, but the media is not hosted and is excluded from the active totals
-above. The date range is a historical scope label; it does not assert a capture
-year for every listed file.
+**845 indexed video files** document one artist's traditional drawing practice.
+The recorded finish dates span September 17, 2024 through September 19, 2026;
+nine Pre-Standard dates remain unknown. Standardized acquisition began July 13,
+2025. The current indexes contain 2,186,833,793,374 indexed video bytes
+(approximately 2.19 TB).
+
+The recordings began as personal practice documentation and a durable record of
+manual work. The archive was initially organized as a dataset retrospectively;
+the current acquisition workflow is maintained prospectively. Recording was not
+initiated as a prospective scientific study. Each downstream study must state
+its own design and evidence requirements.
+
+Video is the primary published evidence. The archive follows one creator working
+with physical drawing tools and materials on paper and illustration board.
+Metadata organizes the evidence and preserves unknowns. Here, **provenance**
+means documented origins and relationships among files, source recordings,
+derivatives, and physical drawings, with the evidence basis stated for each
+relationship. Physical-drawing identity is recorded only where confirmed.
+
+## Choose a collection
+
+| Configuration | Indexed video files | Scope |
+| --- | ---: | --- |
+| `canonical` (default) | 717 | All Standard files in the root [index](metadata.csv). |
+| `pre_standard` | 128 | Earlier acquisition/documentation era; [index](Pre_Standard_Time_Lapses/metadata.csv). |
+
+Both use the `archive` split and the same 35-field schema. Historical descriptive
+fields may be unknown even when technical metadata is available. Blank/null
+values are not zero or evidence of absence. No official train, validation, or
+test partition is defined.
+
+The Hub aggregate of 1,562 rows counts Standard through both the combined view
+and its two subdivisions below. There are 845 unique indexed video files.
+For archive-wide selection, use
+`canonical` + `pre_standard`, or the two Standard views + `pre_standard`.
+Do not combine all four configurations as independent records.
+
+The separate [2012–2016 archival holding](Earlier_Archive_2012_2016/README.md)
+has a public file manifest, but its media is held locally and excluded from these
+totals. Its historical scope label does not date every listed file.
 
 <!-- BEGIN generated workflow-subsets -->
 ### Select a Standard recording workflow
 
-These are alternative views of `canonical/archive`, not additional media.
-Their totals must not be added to the archive total. Each keeps the existing
-`archive` split; there are no training or testing partitions.
+These views partition `canonical/archive`. Their totals must not be added to
+Standard again. Both retain the `archive` split.
 
 | Configuration | Existing protocol value | Indexed files |
 | --- | --- | ---: |
 | `standard_earlier` | `standard-2025-07-13` | 364 |
 | `standard_individual_recordings` | `standard-2026-08-27` | 353 |
 
-Membership follows `acquisition_protocol_version`, not ingestion date, a
-`RecNN` suffix, known recording starts, or resolved drawing identity. Unknown
-times and work IDs remain included. File counts are not drawing counts.
+Membership follows `acquisition_protocol_version` and its documented relationship
+packets. Unknown starts and unresolved work IDs remain included; filename dates
+and `RecNN` suffixes alone do not assign a workflow.
 
 For metadata-only selection, use the generated
 [earlier Standard CSV](Workflow_Subsets/standard_earlier.csv) or
 [individual-recording CSV](Workflow_Subsets/standard_individual_recordings.csv).
-They preserve every source column, value, and repository-relative media path.
-In `load_dataset`, choose the corresponding configuration, pin the repository
-revision, use `streaming=True`, and disable video decoding as shown below.
-Retain that revision and the selected `record_id` values with any analysis.
-The configurations require a revision containing this change; older immutable
-releases retain their original layout. See the [revision-pinned selection
-example](Workflow_Subsets/README.md#retain-a-selection-before-downloading-videos).
-
-After the existing identity/timing projections, run
-`python tools/build_workflow_subsets.py --root . --write`, then run it without
-`--write` to check for drift. Counts, CSV views, metadata filters, and explicit
-media-path lists are generated together. Do not edit these outputs manually.
+They preserve every source field and repository-relative media path. The loading
+example below pins a revision containing both views. Older releases retain their
+original configurations. See the [selection and maintenance guide](Workflow_Subsets/README.md)
+to save selected IDs or regenerate these views.
 <!-- END generated workflow-subsets -->
 
 ## Browse and load
 
-**[Browse the Standard recordings](https://maxwellinked.github.io/time-lapse-artifacts/)**
-through the searchable public browser with muted motion previews. The browser
-is a derived presentation layer and may lag the dataset. Hugging Face remains
-authoritative for media, record identities, and machine-readable metadata.
-
-For lightweight media inspection, the separate
+[Browse the Standard files](https://maxwellinked.github.io/time-lapse-artifacts/)
+with muted motion previews. The browser may lag the dataset; Hugging Face is the
+authoritative source for published media, identities, and metadata. The separate
 [derived-access pilot](https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts-derived)
-provides six silent proxies, 21 normalized encoded-position frames per record,
-and revision-pinned derivation manifests. It is an engineering fixture, not a
-representative sample; this repository remains authoritative.
+offers lightweight proxies and sampled frames from six files. It is an
+engineering fixture, not a representative sample.
 
-For reproducible index inspection, pin the exact revision, stream the index,
-and disable video decoding:
+Install the tested loading version:
 
 ```bash
 python -m pip install 'datasets==4.8.5'
 ```
 
+This pinned revision contains all four configurations. Choose `canonical`,
+`pre_standard`, `standard_earlier`, or `standard_individual_recordings`:
+
 ```python
 from datasets import Video, load_dataset
 
+revision = '01615dbd09db3eee725872ad2952c62b6a236c21'
 records = load_dataset(
     'maxwellinked/time-lapse-artifacts',
-    'canonical',
+    'standard_individual_recordings',
     split='archive',
+    revision=revision,
     streaming=True,
-    revision='d3e4da0bb5dd3eb573f561f588f4792b93fbd88b',
 )
-metadata = records.cast_column('video', Video(decode=False))
-first = next(iter(metadata))
+records = records.cast_column('video', Video(decode=False))
+first = next(iter(records))
 print(first['record_id'], first['video']['path'])
 ```
 
-This reads rows without intentionally transferring video payloads. The CSV path
-column is named `file_name`; Hugging Face resolves it to the typed `video`
-feature for a declared configuration. Use `pre_standard` as the configuration
-name for the earlier tier. Decoded access requires `torchcodec` and a compatible
-video stack; individual files may be several gigabytes.
+This reads the index without intentionally transferring video payloads. The CSV
+`file_name` column resolves to the typed `video` feature. Decoded access requires
+`torchcodec` and a compatible video stack; individual files may be several
+gigabytes. To inspect a newer state, resolve its revision once and retain that
+commit and the selected IDs using the [selection guide](Workflow_Subsets/README.md#retain-a-selection-before-downloading-videos).
 
-To verify one Standard record without downloading its video, install
-`huggingface_hub` and run:
-
-```bash
-python tools/download_verified.py tla-a66bdad6c903b89f \
-  --revision 'v0.7.0' \
-  --check-only
-```
-
-The helper resolves the tag to an immutable commit and checks the indexed size
-and Hub identity. Remove `--check-only` and supply `--output-dir` only when a
-large download is intentional.
-
-## Interpret records
-
-Canonical fields and sidecars answer different questions. Keep these
-distinctions when filtering, citing, or deriving annotations:
-
-- **Drawing/group finish versus recording time:** all members of one documented
-  `standard-2026-08-27` grouping share the finish `date` and `time` of the
-  complete grouping or physical work. That value is not the individual end
-  time of each fragment.
-- **File order versus relationship scope:** `RecNN` records file order within a
-  documented group; it does not itself establish session boundaries or
-  completeness. Compare the prospective
-  [`2026-08-27` packet](Standard_Time_Lapses/Provenance/2026-08-27/README.md)
-  with the separate
-  [June 18–30 historical relationship](Standard_Time_Lapses/Provenance/Historical_Relationships/2026-06-18--2026-06-30-fountain-pen-30x40.md).
-- Per-file timing evidence is separate. A device filename may document a
-  recording-start clock; an MP4 `creation_time` tag may document a
-  creation/finalization boundary; a calibrated value is an estimate. These
-  sources are not interchangeable, and none by itself establishes drawing-active
-  time or frame-level capture timestamps.
-- `duration_seconds` and `encoded_frame_rate` describe encoded playback. They
-  are not wall-clock duration, acceleration, or physical-motion calibration.
-- `acquisition_protocol_version` marks an acquisition workflow. The earlier
-  Standard workflow is `standard-2025-07-13`; reviewed prospective fragment
-  groups use `standard-2026-08-27`. Membership comes from metadata and pinned
-  provenance packets, not filename dates alone. This is not a skill-change
-  label.
-- `fragment_set_label` is a descriptive sidecar grouping label, not a global
-  work identifier. Group completeness and sequence order are asserted only
-  where the pinned relationship layer documents them.
-- Multiple `tool` or `medium` values use semicolons, such as
-  `Pencil;FountainPen` and `Graphite;Ink`. The two lists are independent;
-  positional pairing is not guaranteed. A pipe is not a valid separator.
-- `orientation`, `width_px`, and `height_px` describe the stored encoded file.
-  They do not prove capture orientation, crop history, or camera geometry.
-
-The Standard protocol records a nominal 0.2-second capture interval, but that is
-a protocol-level default rather than a confirmed per-record measurement. Do not
-infer uncertain chronology, material, ownership, endpoint state, or timestamp
-semantics from appearance or filename similarity alone. Full field definitions
-and filename rules are in [`SCHEMA.md`](SCHEMA.md).
-
-## Evidence layers and limits
-
-The active CSV indexes carry stable identity, collection tier, documented
-session descriptors, encoded properties, repository identity, and provenance
-fields where supported. Separate evidence layers preserve claims that should
-remain in their source tables; selected display fields in the active indexes
-are generated from these sources:
-
-- The [provenance index](Standard_Time_Lapses/Provenance/README.md) routes to
-  dated fragment-sequence manifests. At current `main`, thirteen reviewed packet layers spanning twelve calendar dates
-  identify 353 canonical fragments. They preserve grouping, order, completeness,
-  and any noncanonical derivative relationship without adding derivative media
-  to the active index.
-- [Current recording-time evidence](Standard_Time_Lapses/Provenance/Recording_Timing_Current/README.md)
-  combines the frozen Timing v2 snapshot with 14 registered September 19 observations:
-  353 recordings, 175 filename-derived starts and 178 unknown starts. This
-  generated view supplies the existing index timing fields.
-- [Recording Timing v2](Standard_Time_Lapses/Provenance/Recording_Timing_v2/README.md)
-  publishes a frozen observation table for 339 of the 353 current prospective
-  recordings, across 33 confirmed works at that snapshot. Original device
-  filenames support 163 local start observations there; 176 starts remain
-  unknown in that snapshot. The September 19 additions have separate retained
-  source observations, not new rows in this timing table. Creation/finalization timestamps and
-  filename-to-creation intervals do not establish exact capture duration or
-  active drawing time. Its original evidence remains in the separate table.
-- [Recording Timing v1](Standard_Time_Lapses/Provenance/Recording_Timing/README.md)
-  is an exploratory, revision-pinned layer for 186 fragments in six earlier
-  dated manifests. It separates 22 direct filename-to-MP4-boundary observations
-  from 164 profile-matched estimates produced by a versioned in-sample model.
-  The DOI snapshot fixes this published v1 artifact as historical evidence; it
-  does not convert estimates into canonical timing truth or cover later groups.
-- [`Physical_References/endpoint_references.csv`](Physical_References/endpoint_references.csv)
-  links documented Standard records to owner-confirmed photographs through
-  `record_id` and a pinned source revision. The photos are not bundled. See its
-  [schema](Physical_References/SCHEMA.md),
-  [manifest](Physical_References/MANIFEST.json), and
-  [capture and ingest protocol](Physical_References/CAPTURE_AND_INGEST_PROTOCOL.md).
-
-- The optional [work-identity registry](Work_Identity/README.md) links 374 recordings
-  to 39 creator-confirmed drawings through permanent `work_id` values. Coverage is
-  incomplete; an absent link means unknown, not a different drawing.
-
-The videos have no frame-level bounding boxes, segmentation masks, pose, hand,
-pen-tip, stroke, aesthetic, or style labels. The archive also lacks a universal
-capture interval, original per-frame timestamps, camera calibration, and
-pixel-to-physical mapping. Researchers may derive annotations, but should bind
-them to source `record_id` values and an exact repository revision.
-
-Use is best limited to archival and drawing-process research and carefully
-framed within-creator or representation studies. Temporal and physical-motion
-analyses need additional calibration; population, clinical, biometric,
-identity, authorship, and leakage-safe benchmark claims are not validated.
-
-Important biases remain: one creator and one evolving practice, different
-acquisition and documentation conditions across tiers, possible visual
-shortcuts from the workspace, and storage costs that make exhaustive inspection
-expensive. Consult [`Archive_Specifications.md`](docs/Archive_Specifications.md) for
-acquisition details and known gaps.
-
-## Integrity, rights, and license
-
-[`SHA256SUMS`](SHA256SUMS) contains ordinary byte-level SHA-256 values for
-published MP4 and ZIP payloads. It is a portable fixity manifest, not
-encryption. The metadata field `hub_xet_hash` is a Hugging Face Xet file ID,
-not the SHA-256 of downloaded bytes; preserve both without conflating them.
-The checksum manifest intentionally excludes documentation, scripts, CSV
-indexes, and itself.
-
-For reproducible use:
+## Recording and drawing identities
 
-1. Pin a tag or full 40-character repository commit.
-2. Record the selected `record_id` values.
-3. Preserve the corresponding `SHA256SUMS` entries and `hub_xet_hash` values.
-4. State whether audio was retained.
-5. Document decoding, rotation, cropping, sampling, and proxy generation.
+A **`record_id`** identifies one published MP4 file. Historical files may combine
+multiple source recordings; the Standard individual-recording workflow preserves
+one unchanged source recording per file. Neither a metadata row nor a file
+boundary establishes a drawing, session, or complete process.
 
-The creator confirms ownership of the published video files and depicted
-creator-owned drawings. Material that does not pass ownership and provenance
-review is not included in the active public index. This does not independently
-grant rights in incidental third-party content that may appear on screens, in
-references, reflections, or captured audio.
+A **`work_id`** identifies a creator-confirmed drawing/composition. Currently,
+374 files link to 39 work IDs; the other 471 files have unresolved drawing
+identity. Blank does not mean a different drawing. The column is generated from
+the [work registry](Work_Identity/README.md). Membership does not establish gapless
+capture, and different IDs are not independently verified negative pairs for a
+work-disjoint benchmark.
 
-Most active indexed videos at this revision contain an audio stream (486 of
-845, or 57.5%). `has_audio` reports stream presence, not whether the stream
-contains meaningful signal. Before redistribution or
-model release, review audio, visible screens, reference material, reflections,
-tattoos, and other identifying or third-party content. Derived proxy releases
-should remove audio by default while preserving the archival source objects.
+IDs apply across this archive's views. Keep the dataset name and selected
+repository revision alongside them. `record_id` survives descriptive filename
+corrections; work-ID correction and supersession follow the registry contract.
+`RecNN` specifies order within a documented group and does not itself establish
+session boundaries or completeness.
 
-The dataset is released under **CC BY-NC 4.0**. The license applies only to
-material for which the licensor holds the necessary rights. Users must review
-incidental third-party content and ensure that downstream use complies with the
-[license notice](LICENSE). Commercial use outside those terms is not permitted.
+## Reading dates and recording starts
 
-Validation procedures and current checks are documented in
-[`VALIDATION.md`](docs/VALIDATION.md). Run the repository validators before
-publishing metadata, sidecar, checksum, or release changes.
+Canonical filename times are documented **finish labels**. Under
+`standard_individual_recordings`, every member shares the complete drawing/group's
+finish label; it is not an individual recording's start or stop. Historical
+finish-label scope may be unspecified.
+
+- `recording_start_local` is a reviewed original device-filename timestamp,
+  interpreted in the declared timezone. It is not an independently calibrated
+  clock; blank means unavailable or outside reviewed coverage.
+- `recording_start_basis` distinguishes a filename-derived start, a reviewed
+  `unknown`, and `not_in_timing_snapshot` for records outside registered coverage.
+- `documented_finish_date` and `documented_finish_time` retain the original
+  `date` and `time`; `finish_label_scope` states their documented scope.
+
+Use the [current timing view](Standard_Time_Lapses/Provenance/Recording_Timing_Current/README.md)
+for coverage and evidence. MP4 creation tags retain their creation/finalization
+meaning. Encoded playback duration and frame rate do not establish wall-clock
+duration, active drawing time, or capture intervals. No missing start is inferred
+from a shared finish label or playback duration.
+
+## Evidence and limits
+
+The single-creator archive supports examination of this documented practice;
+generalization to other artists or settings requires additional evidence.
+Acquisition and documentation vary across workflows, and workspace appearance
+may provide visual shortcuts for models. Downstream task performance and
+population, clinical, biometric, authorship, or leakage-safe benchmark claims
+require their own validation.
+
+There are no frame-level bounding boxes, segmentation masks, pose, hand, pen-tip,
+stroke, aesthetic, or style labels. The archive lacks universal per-record
+capture calibration, original per-frame timestamps, camera calibration, and
+pixel-to-physical mapping. The nominal 0.2-second protocol setting is not a
+confirmed per-record measurement. Temporal or physical-motion claims must be
+supported by the calibration they require.
+
+The [schema](SCHEMA.md) defines field meanings, semicolon-separated tool/medium
+sets, stored-video orientation, and missing-value rules. Tool and medium lists
+do not guarantee positional pairing. The [provenance index](Standard_Time_Lapses/Provenance/README.md)
+locates sequence evidence and historical timing layers; the
+[physical-reference sidecar](Physical_References/SCHEMA.md) records supported
+photograph relationships, with reference media availability stated separately.
+See [acquisition specifications](docs/Archive_Specifications.md) for defaults and
+known exceptions. Pin derived annotations to source IDs and an exact revision.
+
+## Integrity and rights
+
+[`SHA256SUMS`](SHA256SUMS) records ordinary byte-level SHA-256 for published MP4
+and ZIP payloads. It excludes documentation, scripts, CSV indexes, and itself;
+those files are versioned by the repository commit. `hub_xet_hash` is a distinct
+Hub storage identity. A checksum establishes byte identity with a comparison
+file; provenance requires evidence about that file's origin.
+
+For reproducible use, retain the full repository commit, selected `record_id`
+values, corresponding checksum entries, and Xet identities. Document decoding,
+rotation, cropping, sampling, proxy generation, and whether audio was retained.
+The [verified downloader guide](Workflow_Subsets/README.md#retain-a-selection-before-downloading-videos)
+shows a metadata-only check before intentional media transfer.
+
+Audio streams occur in 486 of 845, or 57.5% of indexed files. `has_audio` reports
+stream presence, not meaningful signal. Review incidental audio, visible
+references, and identifying or third-party content before redistribution or
+model release. Derived proxies should remove audio by default while preserving
+archival sources.
+
+The creator confirms ownership of the published videos and depicted
+creator-owned drawings. This does not independently grant rights in incidental
+third-party content. The dataset is released under **CC BY-NC 4.0**, applying only
+to material for which the licensor holds the necessary rights. See the
+[license notice](LICENSE); commercial use outside its terms is not permitted.
 
 ## Citation and documentation
 
-The tagged `v0.7.0` release freezes 831 indexed video files and the optional
-37-drawing, 360-link work registry validated at `521f4ee62ee3843cf36394499c10bf33f07dcaae`.
-The registry contains positive owner-confirmed memberships; 471 indexed records
-remain unlinked, and different work IDs are not independently verified negative
-pairs. This release is separate from the snapshot registered under the existing DOI.
-
-The DOI-backed `v0.5.1` release remains registered as
-[`10.57967/hf/10449`](https://doi.org/10.57967/hf/10449) and remains fixed at
-709 indexed video files. Cite the exact tag-resolved revision actually used. The BibTeX
-entry below intentionally describes the DOI-backed `v0.5.1` snapshot, not
-`v0.7.0`.
-
-```bibtex
-@dataset{maxwell_time_lapse_artifacts_2026_v0_5_1,
-  author    = {Maxwell, Tim},
-  title     = {Time-Lapse Artifacts},
-  year      = {2026},
-  version   = {0bbf65f},
-  publisher = {Hugging Face},
-  doi       = {10.57967/hf/10449},
-  url       = {https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts/tree/v0.5.1},
-  note      = {Tagged maintenance release; resolve the tag to its 40-character Hub commit for exact reproducibility}
-}
-```
-
-Repository navigation: [supporting documentation](docs/README.md) and
-[release receipts](releases/README.md) are grouped in folders. Canonical media,
-metadata, schema, license and checksums retain their established paths.
-
-Core documentation:
-
-- [`metadata.csv`](metadata.csv) and
-  [`Pre_Standard_Time_Lapses/metadata.csv`](Pre_Standard_Time_Lapses/metadata.csv)
-  — the active machine-readable indexes.
-- [`SCHEMA.md`](SCHEMA.md) and
-  [`Pre_Standard_Time_Lapses/SCHEMA.md`](Pre_Standard_Time_Lapses/SCHEMA.md)
-  — field, filename, and tier contracts.
-- [`Standard_Time_Lapses/Provenance/`](Standard_Time_Lapses/Provenance/README.md)
-  and [`Physical_References/`](Physical_References/SCHEMA.md) — relationship
-  evidence kept outside the active indexes.
-- [`Archive_Specifications.md`](docs/Archive_Specifications.md) and
-  [`Earlier_Archive_2012_2016/README.md`](Earlier_Archive_2012_2016/README.md)
-  — acquisition scope, known gaps, and the offline holding.
-- [`VALIDATION.md`](docs/VALIDATION.md), [`SHA256SUMS`](SHA256SUMS), and
-  [`RELEASE_MANIFEST_V0.7.0.json`](releases/RELEASE_MANIFEST_V0.7.0.json) — validation,
-  fixity, and the current release receipt. Previous versioned manifests remain
-  unchanged. The historical
-  [`RELEASE_MANIFEST_V0.5.1.json`](releases/RELEASE_MANIFEST_V0.5.1.json) remains the DOI
-  release receipt.
-- [`CHANGELOG.md`](CHANGELOG.md) — release history and post-release changes.
+The latest tagged release is **v0.7.0** (831 indexed video files). The existing
+DOI, [10.57967/hf/10449](https://doi.org/10.57967/hf/10449), identifies the historical
+**v0.5.1** snapshot (709 files), not current `main` or v0.7.0. Cite the exact
+revision actually used. The [release guide](releases/README.md) contains the DOI
+BibTeX, snapshot comparisons, and validation-revision details.
+
+Field contracts live in [SCHEMA.md](SCHEMA.md); maintenance instructions in the
+[workflow guide](Workflow_Subsets/README.md#maintain-the-generated-views) and
+[current timing guide](Standard_Time_Lapses/Provenance/Recording_Timing_Current/README.md#repeat-with-a-later-ingest).
+[Validation receipts](docs/VALIDATION.md), the [changelog](CHANGELOG.md), and the
+[supporting-documentation index](docs/README.md) preserve the detailed history.

Workflow_Subsets/README.md

@@ -14,6 +14,8 @@ and only the selected media paths. They retain the existing typed video
 feature and `archive` split. Unknown starts and unresolved work IDs remain
 included. The two views partition `canonical`; do not add their counts to it.
 
+## Maintain the generated views
+
 Regenerate after the normal identity/timing projections and canonical count
 update, following the [existing ingest procedure](../Standard_Time_Lapses/Provenance/Recording_Timing_Current/README.md#repeat-with-a-later-ingest):
 
@@ -24,7 +26,9 @@ python -m unittest discover -s tools -p 'test_*.py'
 ```
 
 The repository pins `datasets==4.8.5` for loading; generation also needs
-PyYAML. The loading check requires the complete repository paths (Git LFS
+PyYAML. Counts, CSV views, metadata filters and explicit media-path lists are
+generated together; do not edit generated outputs manually. The loading check
+requires the complete repository paths (Git LFS
 pointers suffice), refuses video payload reads, checks exact selected input
 paths, and compares every loaded field to the source. This does not establish
 hosted Viewer cache readiness. Regeneration is part of the manual maintainer

docs/Archive_Specifications.md

@@ -11,13 +11,16 @@ now distinguish the canonical workflows:
 - `standard-2026-08-27` — the prospective canonical fragment-sequence workflow
   established August 27, 2026.
 
-Protocol assignment is not a blanket finish-date cutover. In the current
-index, `standard-2026-08-27` applies only to the 339 `canonical_fragment`
-`record_id` values in twelve revision-pinned relationship packets spanning
-eleven calendar dates from August 27 through September 18, 2026. Every other Standard row remains
-`standard-2025-07-13`, including the 19 historical `RecNN` rows outside those
-sidecars. A `RecNN` filename suffix alone never assigns the prospective
-protocol.
+Protocol assignment is not a blanket finish-date cutover.
+`standard-2026-08-27` applies to the `canonical_fragment` record IDs documented
+in the revision-pinned relationship packets. Other Standard rows retain
+`standard-2025-07-13`, including historical `RecNN` rows outside those packets.
+A `RecNN` filename suffix alone never assigns the prospective protocol.
+Use the [generated workflow views](../Workflow_Subsets/README.md) for membership
+and the [dataset card](../README.md#select-a-standard-recording-workflow) for
+generated counts at the selected repository revision. The
+[provenance index](../Standard_Time_Lapses/Provenance/README.md) locates the
+supporting packets.
 
 For `standard-2026-08-27`, each canonical MP4 and metadata row represents one
 unchanged source recording. Membership requires the protocol value in metadata
@@ -85,8 +88,9 @@ row. Grouping, file order, retained-sequence completeness, and derivative
 coverage remain in a separate noncanonical relationship manifest. Historical
 canonical representation may instead use a selected InShot assembly when that
 workflow is specifically documented for the file; it must not be presumed for
-all historical MP4s. This does not change the 29-field schema or retroactively
-redefine existing records. Dynamic browser previews and physical-reference
+all historical MP4s. The active indexes retain the original 29 fields plus five
+timing-display fields and `work_id`; see the [35-field schema](../SCHEMA.md).
+Dynamic browser previews and physical-reference
 photographs remain noncanonical access or evidence layers linked through
 persistent identity.
 

docs/README.md

@@ -4,6 +4,11 @@
   known gaps and evidence limits.
 - [Validation report](VALIDATION.md): release and ingest checks with retained
   historical receipts.
+- [Workflow maintenance](../Workflow_Subsets/README.md#maintain-the-generated-views):
+  regenerate access views after index updates.
+- [Current timing maintenance](../Standard_Time_Lapses/Provenance/Recording_Timing_Current/README.md#repeat-with-a-later-ingest):
+  retain and project reviewed ingest timing evidence.
+- [Release guide](../releases/README.md): tagged snapshot comparisons and citation.
 - [Viewer migration](VIEWER_MIGRATION.md): hosted Dataset Viewer configuration history.
 
 The [canonical schema](../SCHEMA.md), [active index](../metadata.csv),

releases/README.md

@@ -6,7 +6,7 @@ Its [manifest](RELEASE_MANIFEST_V0.7.0.json) binds the final release files.
 
 | Receipt | Scope |
 | --- | --- |
-| [v0.7.0](RELEASE_MANIFEST_V0.7.0.json) | 831 indexed recordings; 35-field indexes with confirmed drawing IDs and explicit recording times. |
+| [v0.7.0](RELEASE_MANIFEST_V0.7.0.json) | 831 indexed video files; 35-field indexes with confirmed drawing IDs and explicit recording times. |
 | [v0.6.0](RELEASE_MANIFEST_V0.6.0.json) | Historical release; exact original manifest bytes retained. |
 | [v0.5.1](RELEASE_MANIFEST_V0.5.1.json) | Historical 709-record snapshot identified by DOI `10.57967/hf/10449`. |
 | [v0.5.0](RELEASE_MANIFEST_V0.5.0.json) | Historical release; exact original manifest bytes retained. |
@@ -19,3 +19,47 @@ not to this folder. Existing release tags retain their original trees and root
 manifest locations. The v0.7.0 manifest records the reorganized current tree.
 
 See the [validation report](../docs/VALIDATION.md) and [changelog](../CHANGELOG.md).
+
+## Tagged snapshot comparison
+
+These counts describe the named historical releases. Current archive membership
+is reported in the [dataset card](../README.md#choose-a-collection).
+
+| Snapshot | Standard | Pre-Standard | Indexed video files | Scope |
+| --- | ---: | ---: | ---: | --- |
+| [v0.7.0](https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts/tree/v0.7.0) | 703 | 128 | 831 | 35-field indexes; 37 confirmed drawings and 360 recording links; 2,176,788,154,698 indexed video bytes and 61.102 encoded playback hours. |
+| [v0.6.0](https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts/tree/v0.6.0) | 629 | 128 | 757 | Media through 2026-09-16; 2,108,662,791,273 indexed video bytes and 58.371 encoded playback hours. |
+| [v0.5.1](https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts/tree/v0.5.1) | 581 | 128 | 709 | Historical snapshot registered as DOI `10.57967/hf/10449`. |
+
+For v0.7.0, the media baseline is
+`521f4ee62ee3843cf36394499c10bf33f07dcaae`; its 35-field indexes were verified
+in the hosted Viewer at `424f0d2090f5bb7a15d440a0f554914d2d745215`.
+The manifest distinguishes those checks from the final documentation and exact
+file receipts. For v0.6.0, the validated-content revision is recorded in its
+[manifest](RELEASE_MANIFEST_V0.6.0.json).
+
+The historical September 17 ingestion baseline remains preserved at
+metadata-bearing revision `21648a6a76b9174d32a4a3314cbe490219fc2151`.
+Later documented corrections, the September 18 append, and the August 20 Rec02
+backfill do not rewrite that receipt. Earlier release receipts retain their
+historical scope even when current metadata is extended or corrected.
+
+## Cite the snapshot used
+
+The existing DOI identifies v0.5.1. This BibTeX describes that snapshot; do not
+use it to imply that the DOI identifies a later tag or current `main`.
+For another revision, name the dataset, author, and exact revision actually used,
+and link to that revision. Resolve tags to their full commit for reproducibility.
+
+```bibtex
+@dataset{maxwell_time_lapse_artifacts_2026_v0_5_1,
+  author    = {Maxwell, Tim},
+  title     = {Time-Lapse Artifacts},
+  year      = {2026},
+  version   = {0bbf65f},
+  publisher = {Hugging Face},
+  doi       = {10.57967/hf/10449},
+  url       = {https://huggingface.co/datasets/maxwellinked/time-lapse-artifacts/tree/v0.5.1},
+  note      = {Tagged maintenance release; resolve the tag to its 40-character Hub commit for exact reproducibility}
+}
+```

tools/build_workflow_subsets.py

@@ -197,34 +197,25 @@ def selection_documentation(subsets: dict[str, list[dict[str, str]]]) -> str:
     return f"""{DOC_BEGIN}
 ### Select a Standard recording workflow
 
-These are alternative views of `canonical/archive`, not additional media.
-Their totals must not be added to the archive total. Each keeps the existing
-`archive` split; there are no training or testing partitions.
+These views partition `canonical/archive`. Their totals must not be added to
+Standard again. Both retain the `archive` split.
 
 | Configuration | Existing protocol value | Indexed files |
 | --- | --- | ---: |
 | `standard_earlier` | `standard-2025-07-13` | {earlier} |
 | `standard_individual_recordings` | `standard-2026-08-27` | {individual} |
 
-Membership follows `acquisition_protocol_version`, not ingestion date, a
-`RecNN` suffix, known recording starts, or resolved drawing identity. Unknown
-times and work IDs remain included. File counts are not drawing counts.
+Membership follows `acquisition_protocol_version` and its documented relationship
+packets. Unknown starts and unresolved work IDs remain included; filename dates
+and `RecNN` suffixes alone do not assign a workflow.
 
 For metadata-only selection, use the generated
 [earlier Standard CSV](Workflow_Subsets/standard_earlier.csv) or
 [individual-recording CSV](Workflow_Subsets/standard_individual_recordings.csv).
-They preserve every source column, value, and repository-relative media path.
-In `load_dataset`, choose the corresponding configuration, pin the repository
-revision, use `streaming=True`, and disable video decoding as shown below.
-Retain that revision and the selected `record_id` values with any analysis.
-The configurations require a revision containing this change; older immutable
-releases retain their original layout. See the [revision-pinned selection
-example](Workflow_Subsets/README.md#retain-a-selection-before-downloading-videos).
-
-After the existing identity/timing projections, run
-`python tools/build_workflow_subsets.py --root . --write`, then run it without
-`--write` to check for drift. Counts, CSV views, metadata filters, and explicit
-media-path lists are generated together. Do not edit these outputs manually.
+They preserve every source field and repository-relative media path. The loading
+example below pins a revision containing both views. Older releases retain their
+original configurations. See the [selection and maintenance guide](Workflow_Subsets/README.md)
+to save selected IDs or regenerate these views.
 {DOC_END}
 
 """

tools/test_semantic_consistency.py

@@ -274,9 +274,11 @@ class SemanticConsistencyTests(unittest.TestCase):
         self.assertIn("- single-creator", readme)
         self.assertIn(
             "The recordings began as personal practice documentation and a "
-            "durable record of manual work. They were not created as a "
-            "prospective scientific protocol; their organization as a dataset "
-            "and any research or model-analysis uses are retrospective.",
+            "durable record of manual work. The archive was initially organized "
+            "as a dataset retrospectively; the current acquisition workflow is "
+            "maintained prospectively. Recording was not initiated as a "
+            "prospective scientific study. Each downstream study must state "
+            "its own design and evidence requirements.",
             normalized,
         )