Publish validated Croissant 1.1 and Responsible AI metadata for the complete v1.0 release

Describe the pinned public data snapshot, all 71 primary archives and supporting files, native scientific file collections, typed catalogs and result tables. Include nine creators, CC BY-NC 4.0 licensing, source provenance and RAI. JSON, schema, RAI and record generation pass the NeurIPS-recommended online checker; 247 public file URLs pass accessibility checks.

README.md

@@ -70,7 +70,7 @@ The Viewer uses lightweight tables; maps, structures and sequences are in the ar
 
 ## Documentation
 
-[Dataset guide](resources/docs/dataset_guide.md) · [Fields and metrics](resources/docs/data_dictionary.md) · [Archive checksums](resources/metadata/checksums/SHA256SUMS)
+[Croissant metadata](resources/metadata/croissant.json) · [Dataset guide](resources/docs/dataset_guide.md) · [Fields and metrics](resources/docs/data_dictionary.md) · [Archive checksums](resources/metadata/checksums/SHA256SUMS)
 
 All 70 training/test archives have verified sizes and SHA-256 hashes. The download helper verifies selected archives automatically.
 

resources/README.md

@@ -20,3 +20,5 @@ The package includes five baseline result sets, two ModelAngelo retraining resul
 - [Entry catalog](https://huggingface.co/datasets/markfaa/CryoAtlas/viewer/catalog/train) and [example images](https://huggingface.co/datasets/markfaa/CryoAtlas/viewer/examples/examples)
 - [Download guide](docs/downloads.md) · [Dataset guide](docs/dataset_guide.md) · [Field definitions](docs/data_dictionary.md)
 - [Checksums](metadata/checksums/SHA256SUMS), with archive paths relative to the repository root
+
+[Croissant metadata](metadata/croissant.json) · [Validation summary](metadata/croissant_validation.json)

resources/metadata/README.md

@@ -1,5 +1,9 @@
 # Release metadata
 
+[Croissant metadata](croissant.json) · [Validation summary](croissant_validation.json)
+
+The Croissant file describes the complete v1.0 HF snapshot, including all main archives, typed entry/metric tables, native scientific file collections, creator attribution and Responsible AI metadata. Its data URLs are pinned to a repository revision.
+
 - `splits/`: fixed training, test and 618-target benchmark EMD lists.
 - `source_accessions.csv` and `Align_cif.json`: deposited accessions, source metadata and aligned-CIF availability.
 - `train/` and `test/`: subset metadata bundles and per-file inventories.

resources/metadata/croissant_validation.json

@@ -0,0 +1,136 @@
+{
+  "state": "passed",
+  "validated_at_utc": "2026-10-21T14:27:50.156011+00:00",
+  "file": "croissant.json",
+  "sha256": "1fd66bfe9a228bb86eda9cbf75cd4deb9ad9eb5ebf53c159eaa0303fb10d4365",
+  "dataset_version": "1.0",
+  "license": "https://creativecommons.org/licenses/by-nc/4.0/",
+  "data_snapshot": "0779e539e03d62a238eb77427586f9261d3e52c7",
+  "croissant_specification": "1.1",
+  "rai_specification": "1.0",
+  "local_validator": {
+    "package": "mlcroissant",
+    "version": "1.1.1",
+    "schema_errors": 0,
+    "schema_warnings": 0
+  },
+  "online_checker": {
+    "url": "https://huggingface.co/spaces/JoaquinVanschoren/croissant-checker",
+    "implementation_revision": "5a09c4a7740e8e42f982d35217a5310d89d8566c",
+    "checks": {
+      "json": "passed",
+      "schema": "passed",
+      "rai": "passed",
+      "record_generation": "passed"
+    },
+    "record_sets_tested": [
+      "train_entries",
+      "test_entries",
+      "benchmark_targets",
+      "benchmark_results",
+      "training_utility",
+      "archive_catalog",
+      "source_accessions"
+    ],
+    "report_sha256": "916c07368c7f67069c2841ae8817c3d7a5300952bd259a82e4ad0a6a8dc436eb"
+  },
+  "public_download_links": {
+    "tested": 247,
+    "passed": 247,
+    "method": "Unauthenticated HTTP HEAD, including redirect handling and byte-size comparison when Content-Length is returned; no full multi-terabyte download."
+  },
+  "coverage": {
+    "main_archives": 71,
+    "file_objects": 247,
+    "native_file_sets": 16,
+    "typed_record_sets": 7,
+    "train_entries": 16657,
+    "test_entries": 1152,
+    "benchmark_targets": 618,
+    "baseline_result_rows": 3090,
+    "retraining_result_rows": 1236,
+    "authors": 9
+  },
+  "native_file_sets": [
+    {
+      "name": "train_maps",
+      "files_matched": 16657,
+      "containers": 68
+    },
+    {
+      "name": "train_structures",
+      "files_matched": 17270,
+      "containers": 68
+    },
+    {
+      "name": "train_sequences",
+      "files_matched": 49971,
+      "containers": 68
+    },
+    {
+      "name": "test_maps",
+      "files_matched": 1152,
+      "containers": 2
+    },
+    {
+      "name": "test_structures",
+      "files_matched": 1198,
+      "containers": 2
+    },
+    {
+      "name": "test_sequences",
+      "files_matched": 3456,
+      "containers": 2
+    },
+    {
+      "name": "predictions_af3",
+      "files_matched": 618,
+      "containers": 1
+    },
+    {
+      "name": "predictions_cryoatom",
+      "files_matched": 618,
+      "containers": 1
+    },
+    {
+      "name": "predictions_e3_cryofold",
+      "files_matched": 618,
+      "containers": 1
+    },
+    {
+      "name": "predictions_emprot",
+      "files_matched": 618,
+      "containers": 1
+    },
+    {
+      "name": "predictions_modelangelo",
+      "files_matched": 618,
+      "containers": 1
+    },
+    {
+      "name": "predictions_ma_cryoatlas",
+      "files_matched": 618,
+      "containers": 1
+    },
+    {
+      "name": "predictions_ma_cryo2structdata",
+      "files_matched": 618,
+      "containers": 1
+    },
+    {
+      "name": "example_maps",
+      "files_matched": 10,
+      "containers": 1
+    },
+    {
+      "name": "example_structures",
+      "files_matched": 56,
+      "containers": 1
+    },
+    {
+      "name": "example_sequences",
+      "files_matched": 30,
+      "containers": 1
+    }
+  ]
+}