{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:5HDVKR7L3DAXT2QIN5CWBNLD7M","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":"41a19155e84659a42c14dc3310e17a15be4001f8a5f78665f566b736d7fa9aae","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-17T20:00:03Z","title_canon_sha256":"13f2bc5343f1d16531ba6921fbd37ad3eed31951f776be34e302c4e8f9449c32"},"schema_version":"1.0","source":{"id":"1207.4189","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.4189","created_at":"2026-05-18T01:56:17Z"},{"alias_kind":"arxiv_version","alias_value":"1207.4189v1","created_at":"2026-05-18T01:56:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.4189","created_at":"2026-05-18T01:56:17Z"},{"alias_kind":"pith_short_12","alias_value":"5HDVKR7L3DAX","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"5HDVKR7L3DAXT2QI","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"5HDVKR7L","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:403a9d7ea413cc6c96a98beb97a57020e0a6f0f21069633ef72ab8fce64fdef5","target":"graph","created_at":"2026-05-18T01:56:17Z","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":"Motivated by new kinematic data in the outer parts of early-type galaxies (ETGs), we re-examine angular momentum (AM) in all galaxy types. We present methods for estimating the specific AM j, focusing on ETGs, to derive relations between stellar j_* and mass M_* (after Fall 1983). We perform analyses of 8 galaxies out to ~10 R_e, finding that data at 2 R_e are sufficient to estimate total j_*. Our results contravene suggestions that ellipticals (Es) harbor large reservoirs of hidden j_* from AM transport in major mergers. We carry out a j_*-M_* analysis of literature data for ~100 nearby brigh","authors_text":"Aaron J. Romanowsky, S. Michael Fall","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-17T20:00:03Z","title":"Angular momentum and galaxy formation revisited"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.4189","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:dfedfec72120a9a8654d9b1c02442432a131d40e591c2f621678029d98d042fa","target":"record","created_at":"2026-05-18T01:56:17Z","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":"41a19155e84659a42c14dc3310e17a15be4001f8a5f78665f566b736d7fa9aae","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-17T20:00:03Z","title_canon_sha256":"13f2bc5343f1d16531ba6921fbd37ad3eed31951f776be34e302c4e8f9449c32"},"schema_version":"1.0","source":{"id":"1207.4189","kind":"arxiv","version":1}},"canonical_sha256":"e9c75547ebd8c179ea086f4560b563fb021d8ee22f286ef66a553ac5d0ea0a11","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9c75547ebd8c179ea086f4560b563fb021d8ee22f286ef66a553ac5d0ea0a11","first_computed_at":"2026-05-18T01:56:17.204171Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:17.204171Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q6L0zkznNVY7Fb4Hn2laASFo/ULCYL1UOKCSsF+hHC8jvVFla5wy/xMNXPlFE44Viwzo9LYe1svcSYJPd/5sCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:17.204961Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.4189","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dfedfec72120a9a8654d9b1c02442432a131d40e591c2f621678029d98d042fa","sha256:403a9d7ea413cc6c96a98beb97a57020e0a6f0f21069633ef72ab8fce64fdef5"],"state_sha256":"7d6394fa33f1d26c3808455d05a6faabf4b778a6e7480e3776e3c25108b8d3dd"}