{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:ESAPE64TN7WYRFESZNHEODRBSR","short_pith_number":"pith:ESAPE64T","canonical_record":{"source":{"id":"astro-ph/0106337","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-19T16:36:13Z","cross_cats_sorted":[],"title_canon_sha256":"f06bc0c3cbeac771a081727b549e3f1658f05e0dc551868e44e6a9fda01d90be","abstract_canon_sha256":"abf3afbe46f25711b7b4b2f5afeaeac432386e3877b9a40c5dbefe895fbabf2b"},"schema_version":"1.0"},"canonical_sha256":"2480f27b936fed889492cb4e470e219462149743605bd1a1972b2f8b40cbf46e","source":{"kind":"arxiv","id":"astro-ph/0106337","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106337","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106337v1","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106337","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"pith_short_12","alias_value":"ESAPE64TN7WY","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"ESAPE64TN7WYRFES","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"ESAPE64T","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:ESAPE64TN7WYRFESZNHEODRBSR","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0106337","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-19T16:36:13Z","cross_cats_sorted":[],"title_canon_sha256":"f06bc0c3cbeac771a081727b549e3f1658f05e0dc551868e44e6a9fda01d90be","abstract_canon_sha256":"abf3afbe46f25711b7b4b2f5afeaeac432386e3877b9a40c5dbefe895fbabf2b"},"schema_version":"1.0"},"canonical_sha256":"2480f27b936fed889492cb4e470e219462149743605bd1a1972b2f8b40cbf46e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:58.972034Z","signature_b64":"oGl8kUtq5h3hna6WvHG7+xaX9zKx2VAdyjpjo26Dh0O/uj3eirzWFmXMVKknj0Df/C+FPFa+14gwwY9zKJldAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2480f27b936fed889492cb4e470e219462149743605bd1a1972b2f8b40cbf46e","last_reissued_at":"2026-05-18T01:22:58.971523Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:58.971523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0106337","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":"2026-05-18T01:22:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+mSb86hO8nYVaOM0ltmwFNbDFlN3y7Z03ffo750OHlqBjge55xhm4TKGQytgTZ1grgz28GRKJNSC0Hm1b0TMCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:18:13.413500Z"},"content_sha256":"a2589056b43a03525702f2cf4b5861cf342a1ef1454a2b38984be2b4d8f31f09","schema_version":"1.0","event_id":"sha256:a2589056b43a03525702f2cf4b5861cf342a1ef1454a2b38984be2b4d8f31f09"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:ESAPE64TN7WYRFESZNHEODRBSR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The colour magnitude relation for galaxies in the Coma cluster","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. I. Terlevich, N. Caldwell, R. G. Bower","submitted_at":"2001-06-19T16:36:13Z","abstract_excerpt":"We present a new photometric catalogue of the Coma galaxy cluster in the Johnson U- and V- bands. We cover an area of 3360arcmin2 of sky, to a depth of V=20 mag in a 13 arcsec diameter aperture, and produce magnitudes for ~1400 extended objects in metric apertures from 8.8 to 26arcsec diameters. The mean internal RMS scatter in the photometry is 0.014 mag in V, and 0.026 mag in U, for V13 < 17 mag.\n  We place new limits on the levels of scatter in the colour--magnitude relation (CMR) in the Coma cluster, and investigate how the slope and scatter of the CMR depends on galaxy morphology, luminos"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106337","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":"2026-05-18T01:22:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ByTbwWTb2F2+qwGkjf2DUhAc6iTouSL6L+7TWp0orbegkstpG1q1j+QwHlPSSzZIDB7Vm6rnaNQcAfQK2MSlAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T17:18:13.413891Z"},"content_sha256":"78b7c89976c6c0e47a9f6cbdd7ea8b8a45f32d1a0ebd5c2d5623773fcc37df56","schema_version":"1.0","event_id":"sha256:78b7c89976c6c0e47a9f6cbdd7ea8b8a45f32d1a0ebd5c2d5623773fcc37df56"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ESAPE64TN7WYRFESZNHEODRBSR/bundle.json","state_url":"https://pith.science/pith/ESAPE64TN7WYRFESZNHEODRBSR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ESAPE64TN7WYRFESZNHEODRBSR/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":"2026-05-31T17:18:13Z","links":{"resolver":"https://pith.science/pith/ESAPE64TN7WYRFESZNHEODRBSR","bundle":"https://pith.science/pith/ESAPE64TN7WYRFESZNHEODRBSR/bundle.json","state":"https://pith.science/pith/ESAPE64TN7WYRFESZNHEODRBSR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ESAPE64TN7WYRFESZNHEODRBSR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:ESAPE64TN7WYRFESZNHEODRBSR","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":"abf3afbe46f25711b7b4b2f5afeaeac432386e3877b9a40c5dbefe895fbabf2b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-19T16:36:13Z","title_canon_sha256":"f06bc0c3cbeac771a081727b549e3f1658f05e0dc551868e44e6a9fda01d90be"},"schema_version":"1.0","source":{"id":"astro-ph/0106337","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106337","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106337v1","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106337","created_at":"2026-05-18T01:22:58Z"},{"alias_kind":"pith_short_12","alias_value":"ESAPE64TN7WY","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"ESAPE64TN7WYRFES","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"ESAPE64T","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:78b7c89976c6c0e47a9f6cbdd7ea8b8a45f32d1a0ebd5c2d5623773fcc37df56","target":"graph","created_at":"2026-05-18T01:22:58Z","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 present a new photometric catalogue of the Coma galaxy cluster in the Johnson U- and V- bands. We cover an area of 3360arcmin2 of sky, to a depth of V=20 mag in a 13 arcsec diameter aperture, and produce magnitudes for ~1400 extended objects in metric apertures from 8.8 to 26arcsec diameters. The mean internal RMS scatter in the photometry is 0.014 mag in V, and 0.026 mag in U, for V13 < 17 mag.\n  We place new limits on the levels of scatter in the colour--magnitude relation (CMR) in the Coma cluster, and investigate how the slope and scatter of the CMR depends on galaxy morphology, luminos","authors_text":"A. I. Terlevich, N. Caldwell, R. G. Bower","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-06-19T16:36:13Z","title":"The colour magnitude relation for galaxies in the Coma cluster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106337","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:a2589056b43a03525702f2cf4b5861cf342a1ef1454a2b38984be2b4d8f31f09","target":"record","created_at":"2026-05-18T01:22:58Z","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":"abf3afbe46f25711b7b4b2f5afeaeac432386e3877b9a40c5dbefe895fbabf2b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-19T16:36:13Z","title_canon_sha256":"f06bc0c3cbeac771a081727b549e3f1658f05e0dc551868e44e6a9fda01d90be"},"schema_version":"1.0","source":{"id":"astro-ph/0106337","kind":"arxiv","version":1}},"canonical_sha256":"2480f27b936fed889492cb4e470e219462149743605bd1a1972b2f8b40cbf46e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2480f27b936fed889492cb4e470e219462149743605bd1a1972b2f8b40cbf46e","first_computed_at":"2026-05-18T01:22:58.971523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:58.971523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oGl8kUtq5h3hna6WvHG7+xaX9zKx2VAdyjpjo26Dh0O/uj3eirzWFmXMVKknj0Df/C+FPFa+14gwwY9zKJldAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:58.972034Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0106337","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2589056b43a03525702f2cf4b5861cf342a1ef1454a2b38984be2b4d8f31f09","sha256:78b7c89976c6c0e47a9f6cbdd7ea8b8a45f32d1a0ebd5c2d5623773fcc37df56"],"state_sha256":"6c540b5b76089eb01779a3f5140176678ef25d2147bc718a91a2406ecffe93f1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RHVMFDmP8OmkoEa4Pdtr/8dtd5IJUE5W5ysTM8fN+0ZzliNIIJBXTYM/jovL+L4f8/1RwHxp8sNM8KdO+MFRCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T17:18:13.417254Z","bundle_sha256":"aac83783fe5f3b2ecddfe501ffff7059f80cd6db92c20ab7adaacf48e952d354"}}