{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:EBW3K5OEVGKV4JVNABYWUVEQRX","short_pith_number":"pith:EBW3K5OE","canonical_record":{"source":{"id":"astro-ph/0502117","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-02-05T01:41:53Z","cross_cats_sorted":[],"title_canon_sha256":"097077183b5e7c1b2b68726fd68d2925d4f82d9e1f9413837cbe2db29372d1de","abstract_canon_sha256":"66e112268ccf18f85673bb07ead5fd743f65648b83f13abf08608359d9c85e5e"},"schema_version":"1.0"},"canonical_sha256":"206db575c4a9955e26ad00716a54908dc0b57931b829556af448f0827533506d","source":{"kind":"arxiv","id":"astro-ph/0502117","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0502117","created_at":"2026-05-18T01:08:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0502117v2","created_at":"2026-05-18T01:08:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0502117","created_at":"2026-05-18T01:08:59Z"},{"alias_kind":"pith_short_12","alias_value":"EBW3K5OEVGKV","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"EBW3K5OEVGKV4JVN","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"EBW3K5OE","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:EBW3K5OEVGKV4JVNABYWUVEQRX","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0502117","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-02-05T01:41:53Z","cross_cats_sorted":[],"title_canon_sha256":"097077183b5e7c1b2b68726fd68d2925d4f82d9e1f9413837cbe2db29372d1de","abstract_canon_sha256":"66e112268ccf18f85673bb07ead5fd743f65648b83f13abf08608359d9c85e5e"},"schema_version":"1.0"},"canonical_sha256":"206db575c4a9955e26ad00716a54908dc0b57931b829556af448f0827533506d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:59.154566Z","signature_b64":"s9SXc0DrTH60l7emx/crSj6qlpzMivW6/knfSbFb6IdioqLWiClKxPHslcueUCeGrFgQcBvZpB136CcZTR+xBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"206db575c4a9955e26ad00716a54908dc0b57931b829556af448f0827533506d","last_reissued_at":"2026-05-18T01:08:59.154040Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:59.154040Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0502117","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:08:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Arz3nvZ/4/C1Ha832FIAmC93w1DeIOkOw/0AwldOyNx4rlhRPPFinJ0qlvIHRBmfxKTVr+6qbudkuw21nsk6DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T14:06:12.843030Z"},"content_sha256":"167e154e23a96ff26ff7ad34c4bfa493a540f1abae46650a393dc97cb7c9c04b","schema_version":"1.0","event_id":"sha256:167e154e23a96ff26ff7ad34c4bfa493a540f1abae46650a393dc97cb7c9c04b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:EBW3K5OEVGKV4JVNABYWUVEQRX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Colours of Elliptical galaxies","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Anna Gallazzi, Guinevere Kauffmann, Jarle Brinchmann, Ruixiang Chang, St\\'ephane Charlot, Timothy M. Heckman, \\v{Z}eljko Ivezi\\'c","submitted_at":"2005-02-05T01:41:53Z","abstract_excerpt":"We have compiled a sample of 2728 nearby ($z<0.08$) elliptical galaxies with photometry in the $g,r,i,z$ bands from the Sloan Digital Sky Survey (SDSS) and $J,H,K$ photometry from the Two Micron All Sky Survey (2MASS). Stellar masses, stellar velocity dispersions and structural parameters such as sizes and surface mass densities are also available for these objects. In order to correct the aperture mismatch between SDSS and 2MASS, we correct the SDSS magnitudes to the isophotal circular radius where the 2MASS magnitudes are measured. We compare the correlations between optical, optical-infrare"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0502117","kind":"arxiv","version":2},"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":"2026-05-18T01:08:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Fmq77yho4/XdnZnSzHevBp7zK9McXl3eT56MuE+o3datS4tnXjcixYHUbPh9Xo1ZmKMY1HfCUK8XXfie3rwOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T14:06:12.843388Z"},"content_sha256":"834552e05eaaf3b2c25884decec1c556816843b7600af3f10cb621ba99109943","schema_version":"1.0","event_id":"sha256:834552e05eaaf3b2c25884decec1c556816843b7600af3f10cb621ba99109943"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EBW3K5OEVGKV4JVNABYWUVEQRX/bundle.json","state_url":"https://pith.science/pith/EBW3K5OEVGKV4JVNABYWUVEQRX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EBW3K5OEVGKV4JVNABYWUVEQRX/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":"2026-06-03T14:06:12Z","links":{"resolver":"https://pith.science/pith/EBW3K5OEVGKV4JVNABYWUVEQRX","bundle":"https://pith.science/pith/EBW3K5OEVGKV4JVNABYWUVEQRX/bundle.json","state":"https://pith.science/pith/EBW3K5OEVGKV4JVNABYWUVEQRX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EBW3K5OEVGKV4JVNABYWUVEQRX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:EBW3K5OEVGKV4JVNABYWUVEQRX","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":"66e112268ccf18f85673bb07ead5fd743f65648b83f13abf08608359d9c85e5e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-02-05T01:41:53Z","title_canon_sha256":"097077183b5e7c1b2b68726fd68d2925d4f82d9e1f9413837cbe2db29372d1de"},"schema_version":"1.0","source":{"id":"astro-ph/0502117","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0502117","created_at":"2026-05-18T01:08:59Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0502117v2","created_at":"2026-05-18T01:08:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0502117","created_at":"2026-05-18T01:08:59Z"},{"alias_kind":"pith_short_12","alias_value":"EBW3K5OEVGKV","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"EBW3K5OEVGKV4JVN","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"EBW3K5OE","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:834552e05eaaf3b2c25884decec1c556816843b7600af3f10cb621ba99109943","target":"graph","created_at":"2026-05-18T01:08:59Z","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 compiled a sample of 2728 nearby ($z<0.08$) elliptical galaxies with photometry in the $g,r,i,z$ bands from the Sloan Digital Sky Survey (SDSS) and $J,H,K$ photometry from the Two Micron All Sky Survey (2MASS). Stellar masses, stellar velocity dispersions and structural parameters such as sizes and surface mass densities are also available for these objects. In order to correct the aperture mismatch between SDSS and 2MASS, we correct the SDSS magnitudes to the isophotal circular radius where the 2MASS magnitudes are measured. We compare the correlations between optical, optical-infrare","authors_text":"Anna Gallazzi, Guinevere Kauffmann, Jarle Brinchmann, Ruixiang Chang, St\\'ephane Charlot, Timothy M. Heckman, \\v{Z}eljko Ivezi\\'c","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-02-05T01:41:53Z","title":"The Colours of Elliptical galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0502117","kind":"arxiv","version":2},"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":"sha256:167e154e23a96ff26ff7ad34c4bfa493a540f1abae46650a393dc97cb7c9c04b","target":"record","created_at":"2026-05-18T01:08:59Z","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":"66e112268ccf18f85673bb07ead5fd743f65648b83f13abf08608359d9c85e5e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-02-05T01:41:53Z","title_canon_sha256":"097077183b5e7c1b2b68726fd68d2925d4f82d9e1f9413837cbe2db29372d1de"},"schema_version":"1.0","source":{"id":"astro-ph/0502117","kind":"arxiv","version":2}},"canonical_sha256":"206db575c4a9955e26ad00716a54908dc0b57931b829556af448f0827533506d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"206db575c4a9955e26ad00716a54908dc0b57931b829556af448f0827533506d","first_computed_at":"2026-05-18T01:08:59.154040Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:59.154040Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s9SXc0DrTH60l7emx/crSj6qlpzMivW6/knfSbFb6IdioqLWiClKxPHslcueUCeGrFgQcBvZpB136CcZTR+xBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:59.154566Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0502117","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:167e154e23a96ff26ff7ad34c4bfa493a540f1abae46650a393dc97cb7c9c04b","sha256:834552e05eaaf3b2c25884decec1c556816843b7600af3f10cb621ba99109943"],"state_sha256":"c1f191784ffd39fd98219f6dd0d4af4ff9bc57a0642e6a934c57c24943328c53"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m5pcojzkpR3g2slEK10TKoLog2qylPu0WlPUkzgcZMh/aS8T8uinhLiD5cAHkUYVPheHh4CPWw5miAi8vcs/Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T14:06:12.845290Z","bundle_sha256":"66352a996f508ff04b23adb22358776b508f67dad4d815ecd63a8f012b86e862"}}