{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:C73HJWTI3IENCHEPU45KKIHJEN","short_pith_number":"pith:C73HJWTI","canonical_record":{"source":{"id":"2504.17688","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-04-24T15:58:00Z","cross_cats_sorted":[],"title_canon_sha256":"0308aa2d899f6c58c17b5cb452a32324bfd87c85b6742e2e68ab94104c89ae4a","abstract_canon_sha256":"3061f06ae3558901b9d9aa237ba59c75916a49629b16e696cc3d211c3e74cdfb"},"schema_version":"1.0"},"canonical_sha256":"17f674da68da08d11c8fa73aa520e92355a16f6ca83eb1a7bf77c83dfd2df041","source":{"kind":"arxiv","id":"2504.17688","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.17688","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"arxiv_version","alias_value":"2504.17688v1","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.17688","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"pith_short_12","alias_value":"C73HJWTI3IEN","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"pith_short_16","alias_value":"C73HJWTI3IENCHEP","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"pith_short_8","alias_value":"C73HJWTI","created_at":"2026-07-05T10:53:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:C73HJWTI3IENCHEPU45KKIHJEN","target":"record","payload":{"canonical_record":{"source":{"id":"2504.17688","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-04-24T15:58:00Z","cross_cats_sorted":[],"title_canon_sha256":"0308aa2d899f6c58c17b5cb452a32324bfd87c85b6742e2e68ab94104c89ae4a","abstract_canon_sha256":"3061f06ae3558901b9d9aa237ba59c75916a49629b16e696cc3d211c3e74cdfb"},"schema_version":"1.0"},"canonical_sha256":"17f674da68da08d11c8fa73aa520e92355a16f6ca83eb1a7bf77c83dfd2df041","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:53:34.078735Z","signature_b64":"YPLa1fiLNjWHZg7H/TIVc0JSSHslIrMb75Chhyx+xv2TA1P3Ibjl+sKvC0EH7UK/PowmSSn3jqKVXmK0m4pWDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17f674da68da08d11c8fa73aa520e92355a16f6ca83eb1a7bf77c83dfd2df041","last_reissued_at":"2026-07-05T10:53:34.078149Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:53:34.078149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.17688","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:53:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o0/kFVmu5s+UFVSr++3hs17jS0nt/+a53iYVi5tqEQs/aPOutGv72qM8MVnayK0jvYyX8S6KMQVgTjiQ8CDqAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T09:36:26.695906Z"},"content_sha256":"48b570bce6dba0cfa24424aeb344080c38b030aba1c558162394f5b90cdde1ea","schema_version":"1.0","event_id":"sha256:48b570bce6dba0cfa24424aeb344080c38b030aba1c558162394f5b90cdde1ea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:C73HJWTI3IENCHEPU45KKIHJEN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Hubble Image Similarity Project","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"J. E. G. Peek, Richard L. White","submitted_at":"2025-04-24T15:58:00Z","abstract_excerpt":"We have created a large database of similarity information between sub-regions of Hubble Space Telescope images. These data can be used to assess the accuracy of image search algorithms based on computer vision methods. The images were compared by humans in a citizen science project, where they were asked to select similar images from a comparison sample. We utilized the Amazon Mechanical Turk system to pay our reviewers a fair wage for their work. Nearly 850,000 comparison measurements have been analyzed to construct a similarity distance matrix between all the pairs of images. We describe th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.17688","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.17688/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:53:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g3pT68DJ4FDjVNTwTeN4sGKOLu525OkvHog16C+ydh9TNBG54BHWRoloU0b/MA/G7CewS57rzsA1p+3tlpvJCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T09:36:26.696474Z"},"content_sha256":"087fa68399b71c76b961eb58170ddf037c9572eb79e11bb9cc67d4e34ccc4bee","schema_version":"1.0","event_id":"sha256:087fa68399b71c76b961eb58170ddf037c9572eb79e11bb9cc67d4e34ccc4bee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C73HJWTI3IENCHEPU45KKIHJEN/bundle.json","state_url":"https://pith.science/pith/C73HJWTI3IENCHEPU45KKIHJEN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C73HJWTI3IENCHEPU45KKIHJEN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-21T09:36:26Z","links":{"resolver":"https://pith.science/pith/C73HJWTI3IENCHEPU45KKIHJEN","bundle":"https://pith.science/pith/C73HJWTI3IENCHEPU45KKIHJEN/bundle.json","state":"https://pith.science/pith/C73HJWTI3IENCHEPU45KKIHJEN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C73HJWTI3IENCHEPU45KKIHJEN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:C73HJWTI3IENCHEPU45KKIHJEN","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"3061f06ae3558901b9d9aa237ba59c75916a49629b16e696cc3d211c3e74cdfb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-04-24T15:58:00Z","title_canon_sha256":"0308aa2d899f6c58c17b5cb452a32324bfd87c85b6742e2e68ab94104c89ae4a"},"schema_version":"1.0","source":{"id":"2504.17688","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.17688","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"arxiv_version","alias_value":"2504.17688v1","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.17688","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"pith_short_12","alias_value":"C73HJWTI3IEN","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"pith_short_16","alias_value":"C73HJWTI3IENCHEP","created_at":"2026-07-05T10:53:34Z"},{"alias_kind":"pith_short_8","alias_value":"C73HJWTI","created_at":"2026-07-05T10:53:34Z"}],"graph_snapshots":[{"event_id":"sha256:087fa68399b71c76b961eb58170ddf037c9572eb79e11bb9cc67d4e34ccc4bee","target":"graph","created_at":"2026-07-05T10:53:34Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2504.17688/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have created a large database of similarity information between sub-regions of Hubble Space Telescope images. These data can be used to assess the accuracy of image search algorithms based on computer vision methods. The images were compared by humans in a citizen science project, where they were asked to select similar images from a comparison sample. We utilized the Amazon Mechanical Turk system to pay our reviewers a fair wage for their work. Nearly 850,000 comparison measurements have been analyzed to construct a similarity distance matrix between all the pairs of images. We describe th","authors_text":"J. E. G. Peek, Richard L. White","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-04-24T15:58:00Z","title":"The Hubble Image Similarity Project"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.17688","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:48b570bce6dba0cfa24424aeb344080c38b030aba1c558162394f5b90cdde1ea","target":"record","created_at":"2026-07-05T10:53:34Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"3061f06ae3558901b9d9aa237ba59c75916a49629b16e696cc3d211c3e74cdfb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-04-24T15:58:00Z","title_canon_sha256":"0308aa2d899f6c58c17b5cb452a32324bfd87c85b6742e2e68ab94104c89ae4a"},"schema_version":"1.0","source":{"id":"2504.17688","kind":"arxiv","version":1}},"canonical_sha256":"17f674da68da08d11c8fa73aa520e92355a16f6ca83eb1a7bf77c83dfd2df041","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17f674da68da08d11c8fa73aa520e92355a16f6ca83eb1a7bf77c83dfd2df041","first_computed_at":"2026-07-05T10:53:34.078149Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:53:34.078149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YPLa1fiLNjWHZg7H/TIVc0JSSHslIrMb75Chhyx+xv2TA1P3Ibjl+sKvC0EH7UK/PowmSSn3jqKVXmK0m4pWDA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:53:34.078735Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.17688","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:48b570bce6dba0cfa24424aeb344080c38b030aba1c558162394f5b90cdde1ea","sha256:087fa68399b71c76b961eb58170ddf037c9572eb79e11bb9cc67d4e34ccc4bee"],"state_sha256":"7d808e72ee3a3b627b32354132c54cf69dfee4a9b84080290ca4b8f119cfd20f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9EDkcZx6F6EXxmNZ6CFoVT3Oi7JarYy+gl6m0TD27dEd6fAeyEbszY7vi24Nd0gf3BJo29H6Obs/l6sL81VMBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T09:36:26.700603Z","bundle_sha256":"cd580caaede67ce37e2e1b3cb598849d9d0a0431ca0d0623146e06fc74709290"}}