{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:6PJFMMV5YKHHOKZVPS5IZFW764","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":"d2ab5c1a9685f5370f992b35f098fe7f667b2e2349437e9d1f9ef3adb23699bd","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-11-14T16:10:21Z","title_canon_sha256":"7736d597a410cbe9ebf800567b8193386b67d689fd4e5764b3941ba4523bb0c2"},"schema_version":"1.0","source":{"id":"astro-ph/0011256","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0011256","created_at":"2026-05-18T03:57:01Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0011256v1","created_at":"2026-05-18T03:57:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0011256","created_at":"2026-05-18T03:57:01Z"},{"alias_kind":"pith_short_12","alias_value":"6PJFMMV5YKHH","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"6PJFMMV5YKHHOKZV","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"6PJFMMV5","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:b32b25b293337256665982ae0586e3f1f80edd06a034809c11992b01be0f5e2a","target":"graph","created_at":"2026-05-18T03:57:01Z","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":"From a diameter-limited sample of 86 `face-on' spiral galaxies, the bulge-to-disk size and luminosity ratios, and other quantitative measurements for the prominence of the bulge are derived. The bulge and disk parameters have been estimated using a seeing convolved Sersic r^(1/n) bulge and a seeing convolved exponential disk. In general, early-type spiral galaxy bulges have Sersic values of n>1, and late-type spiral galaxy bulges have values of n<1. In the B-band, only 8 galaxies have a bulge shape parameter n consistent with the exponential value of 1, and only 5 galaxies do in the K-band. Ap","authors_text":"Alister W. Graham","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-11-14T16:10:21Z","title":"An investigation into the prominence of spiral galaxy bulges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0011256","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":"sha256:532588957969bd0992793ecb1172b01d88346da0769c3c8d22fda8883f04aa9b","target":"record","created_at":"2026-05-18T03:57:01Z","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":"d2ab5c1a9685f5370f992b35f098fe7f667b2e2349437e9d1f9ef3adb23699bd","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-11-14T16:10:21Z","title_canon_sha256":"7736d597a410cbe9ebf800567b8193386b67d689fd4e5764b3941ba4523bb0c2"},"schema_version":"1.0","source":{"id":"astro-ph/0011256","kind":"arxiv","version":1}},"canonical_sha256":"f3d25632bdc28e772b357cba8c96dff705fba2cbbf9f16a16c618c42b06c05c7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f3d25632bdc28e772b357cba8c96dff705fba2cbbf9f16a16c618c42b06c05c7","first_computed_at":"2026-05-18T03:57:01.483098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:57:01.483098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vp/6rHBze3CKLFk1c+4as+KhnTPQ6x2TNiNagsmKaRdFXqkuExl9BloDW8Ewd0JGSJcV/9Yr1jh+T5VmhfHYCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:57:01.483980Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0011256","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:532588957969bd0992793ecb1172b01d88346da0769c3c8d22fda8883f04aa9b","sha256:b32b25b293337256665982ae0586e3f1f80edd06a034809c11992b01be0f5e2a"],"state_sha256":"9ff6ac6d627aa51586939e5e801b154e8c9aeed474bf20c242988b1abeaddbdd"}