{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:AT2E2YC4FV22K2YEOGQBFYP2N2","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":"f72b3d5854015212b443106e0c0997719f144d9e4f037653da28517f7d64371d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-17T15:35:30Z","title_canon_sha256":"7126eb8ee54a0aba06cfec0386a26d8da7dfae850b012df358df741fdac70c8e"},"schema_version":"1.0","source":{"id":"1412.5444","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.5444","created_at":"2026-05-18T01:41:18Z"},{"alias_kind":"arxiv_version","alias_value":"1412.5444v1","created_at":"2026-05-18T01:41:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.5444","created_at":"2026-05-18T01:41:18Z"},{"alias_kind":"pith_short_12","alias_value":"AT2E2YC4FV22","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AT2E2YC4FV22K2YE","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AT2E2YC4","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:83daa775b1c457cde6a029671c1a911a1fcdde1582969f58353bbca042c74f1b","target":"graph","created_at":"2026-05-18T01:41:18Z","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":"Precise measurements of gas kinematics in the disk of a spiral galaxy can be used to estimate its mass distribution. The Southern African Large Telescope (SALT) has a large collecting area and field of view, and is equipped with a Fabry-Perot interferometer that can measure gas kinematics in a galaxy from the Halpha line. To take advantage of this capability, we have constructed a sample of 19 nearby spiral galaxies, the RSS Imaging and Spectroscopy Nearby Galaxy Survey (RINGS), as targets for detailed study of their mass distributions and have collected much of the needed data. In this paper,","authors_text":"Carl J. Mitchell (Rutgers), J. A. Sellwood (Rutgers), K. Lee-Waddell (RMC), Kristine Spekkens (RMC), Rachel Kuzio de Naray (Georgia State), T. B. Williams (SAAO)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-17T15:35:30Z","title":"The RINGS Survey I: Halpha and HI Velocity Maps of Galaxy NGC 2280"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.5444","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":"sha256:6756c7be9b9c58e8a6460a17040025f6643392ef4c7e8ab9fbaba0421b8adca1","target":"record","created_at":"2026-05-18T01:41:18Z","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":"f72b3d5854015212b443106e0c0997719f144d9e4f037653da28517f7d64371d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-17T15:35:30Z","title_canon_sha256":"7126eb8ee54a0aba06cfec0386a26d8da7dfae850b012df358df741fdac70c8e"},"schema_version":"1.0","source":{"id":"1412.5444","kind":"arxiv","version":1}},"canonical_sha256":"04f44d605c2d75a56b0471a012e1fa6e8e254cc82fdd7352b61da434443ae0e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04f44d605c2d75a56b0471a012e1fa6e8e254cc82fdd7352b61da434443ae0e8","first_computed_at":"2026-05-18T01:41:18.459585Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:18.459585Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xi/jEHX9dbrnJ62NhV9rCI8Ow+kAAdsSDMy/m+5TFLUF7rHbqQ1rVzCXjlWf45jVaBk0g2ArdmVz1xwaEdE+BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:18.460148Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.5444","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6756c7be9b9c58e8a6460a17040025f6643392ef4c7e8ab9fbaba0421b8adca1","sha256:83daa775b1c457cde6a029671c1a911a1fcdde1582969f58353bbca042c74f1b"],"state_sha256":"666f641e110fcc6f68f9e69afa428fff8f816af3013d32f3e4767dcf8f6beb5f"}