{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1996:V2XTQVRESCK5TSZWR6BY56CYKF","short_pith_number":"pith:V2XTQVRE","canonical_record":{"source":{"id":"astro-ph/9608150","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1996-08-23T12:47:37Z","cross_cats_sorted":[],"title_canon_sha256":"9cfa4eabcd27b2b2cbd394a761c8286c345eeae662c40e3fee2f557b333d6d9f","abstract_canon_sha256":"ca40a0c192ebd799a0924d5c85868074bc51a30707c5484798ce753a21c87aaf"},"schema_version":"1.0"},"canonical_sha256":"aeaf3856249095d9cb368f838ef858514ab11adf7f15a1c9e81cf4631e08d837","source":{"kind":"arxiv","id":"astro-ph/9608150","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9608150","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9608150v1","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9608150","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"V2XTQVRESCK5","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"V2XTQVRESCK5TSZW","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"V2XTQVRE","created_at":"2026-05-18T12:25:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1996:V2XTQVRESCK5TSZWR6BY56CYKF","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9608150","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1996-08-23T12:47:37Z","cross_cats_sorted":[],"title_canon_sha256":"9cfa4eabcd27b2b2cbd394a761c8286c345eeae662c40e3fee2f557b333d6d9f","abstract_canon_sha256":"ca40a0c192ebd799a0924d5c85868074bc51a30707c5484798ce753a21c87aaf"},"schema_version":"1.0"},"canonical_sha256":"aeaf3856249095d9cb368f838ef858514ab11adf7f15a1c9e81cf4631e08d837","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:40.900019Z","signature_b64":"dtmQBPSxbxAkvoIORaXY6X0oD3D8outnxgNP3LM+JUNq3xOC98oa/KUYP6F+t9nIVbG+fzeVsuGWtyw84UABBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aeaf3856249095d9cb368f838ef858514ab11adf7f15a1c9e81cf4631e08d837","last_reissued_at":"2026-05-18T01:07:40.899590Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:40.899590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9608150","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":"2026-05-18T01:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hiaP7TJpVIFsBpot5A6k13Rx9D3eMqIiKFth9aQiGHY2exHpX7LJZMPC746WHkMBiNHtA2iJC3pl4WbK0K1bCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:47:47.699443Z"},"content_sha256":"c0f56a299af09ed6f02116011a24707dfc2058aee138df8f9fc5dd73a1971b41","schema_version":"1.0","event_id":"sha256:c0f56a299af09ed6f02116011a24707dfc2058aee138df8f9fc5dd73a1971b41"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1996:V2XTQVRESCK5TSZWR6BY56CYKF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A photometric catalogue of the Coma cluster core","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Biviano, A. Mazure, C. Lobo, D. Gerbal, E. Slezak, F. Durret, O. Le F\\`evre","submitted_at":"1996-08-23T12:47:37Z","abstract_excerpt":"We have obtained a mosaic of CCD images of the Coma cluster in the V-band covering a region of approximately 0.4 degrees$^2$ around both central cluster galaxies NGC 4889 and NGC 4874. An additional frame of $\\sim$ 90 arcmin$^2$ was taken of the south-west region around NGC 4839. We derived a catalogue of 7023 galaxies and 4096 stars containing positions, central surface brightnesses and isophotal V$_{26.5}$ magnitudes. We estimate that data is complete up to V $_{26.5}\\sim$ 22.5 and the surface brightness limiting detection value is $\\mu$ $\\sim$ 24 mag/arcsec$^2$. In this paper we present the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9608150","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":""},"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":"2026-05-18T01:07:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GXQTK9nRHm98kD3IpGQTkXbTqZd1muiAIVANs/mdDRokVvM8WTqP0pPDh9jYZNaSxaKvRm/tVWT7jMinqAQLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:47:47.700299Z"},"content_sha256":"0026da6a5410e72ffc11a13c0cc575ea90b39b3488f86b1752991118e9cb89e2","schema_version":"1.0","event_id":"sha256:0026da6a5410e72ffc11a13c0cc575ea90b39b3488f86b1752991118e9cb89e2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V2XTQVRESCK5TSZWR6BY56CYKF/bundle.json","state_url":"https://pith.science/pith/V2XTQVRESCK5TSZWR6BY56CYKF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V2XTQVRESCK5TSZWR6BY56CYKF/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":"2026-05-28T13:47:47Z","links":{"resolver":"https://pith.science/pith/V2XTQVRESCK5TSZWR6BY56CYKF","bundle":"https://pith.science/pith/V2XTQVRESCK5TSZWR6BY56CYKF/bundle.json","state":"https://pith.science/pith/V2XTQVRESCK5TSZWR6BY56CYKF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V2XTQVRESCK5TSZWR6BY56CYKF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1996:V2XTQVRESCK5TSZWR6BY56CYKF","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":"ca40a0c192ebd799a0924d5c85868074bc51a30707c5484798ce753a21c87aaf","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-08-23T12:47:37Z","title_canon_sha256":"9cfa4eabcd27b2b2cbd394a761c8286c345eeae662c40e3fee2f557b333d6d9f"},"schema_version":"1.0","source":{"id":"astro-ph/9608150","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9608150","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9608150v1","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9608150","created_at":"2026-05-18T01:07:40Z"},{"alias_kind":"pith_short_12","alias_value":"V2XTQVRESCK5","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"V2XTQVRESCK5TSZW","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"V2XTQVRE","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:0026da6a5410e72ffc11a13c0cc575ea90b39b3488f86b1752991118e9cb89e2","target":"graph","created_at":"2026-05-18T01:07:40Z","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"},"paper":{"abstract_excerpt":"We have obtained a mosaic of CCD images of the Coma cluster in the V-band covering a region of approximately 0.4 degrees$^2$ around both central cluster galaxies NGC 4889 and NGC 4874. An additional frame of $\\sim$ 90 arcmin$^2$ was taken of the south-west region around NGC 4839. We derived a catalogue of 7023 galaxies and 4096 stars containing positions, central surface brightnesses and isophotal V$_{26.5}$ magnitudes. We estimate that data is complete up to V $_{26.5}\\sim$ 22.5 and the surface brightness limiting detection value is $\\mu$ $\\sim$ 24 mag/arcsec$^2$. In this paper we present the","authors_text":"A. Biviano, A. Mazure, C. Lobo, D. Gerbal, E. Slezak, F. Durret, O. Le F\\`evre","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1996-08-23T12:47:37Z","title":"A photometric catalogue of the Coma cluster core"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9608150","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:c0f56a299af09ed6f02116011a24707dfc2058aee138df8f9fc5dd73a1971b41","target":"record","created_at":"2026-05-18T01:07:40Z","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":"ca40a0c192ebd799a0924d5c85868074bc51a30707c5484798ce753a21c87aaf","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1996-08-23T12:47:37Z","title_canon_sha256":"9cfa4eabcd27b2b2cbd394a761c8286c345eeae662c40e3fee2f557b333d6d9f"},"schema_version":"1.0","source":{"id":"astro-ph/9608150","kind":"arxiv","version":1}},"canonical_sha256":"aeaf3856249095d9cb368f838ef858514ab11adf7f15a1c9e81cf4631e08d837","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aeaf3856249095d9cb368f838ef858514ab11adf7f15a1c9e81cf4631e08d837","first_computed_at":"2026-05-18T01:07:40.899590Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:40.899590Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dtmQBPSxbxAkvoIORaXY6X0oD3D8outnxgNP3LM+JUNq3xOC98oa/KUYP6F+t9nIVbG+fzeVsuGWtyw84UABBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:40.900019Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9608150","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0f56a299af09ed6f02116011a24707dfc2058aee138df8f9fc5dd73a1971b41","sha256:0026da6a5410e72ffc11a13c0cc575ea90b39b3488f86b1752991118e9cb89e2"],"state_sha256":"b270271990c00826b13c9e1f045ed7465bb86c2a7ece8e5e700dd8f75fd3cf85"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GyCmn5kC4RH18HaY18EIUPsEPrVY+BjQfAqKGX+uxfEqJpynnPKiMNAC1gnd+mxSEwDUX8Ri9Hwg6OEe+zi6BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T13:47:47.703981Z","bundle_sha256":"f911172d54e5324247c5752d26a3c70a4d888e885ef88958753859b1a11d043a"}}