{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:6FVIWQCR6Q4RIKOIZGQBECAPMS","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":"79806710a7a4449296dcbabe5371e36164926469abec7ec5f3e891887fac9879","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-29T18:00:01Z","title_canon_sha256":"5b7f85c48a0099abe850b7e6dbff01db94d3868c4f2ebdbc0063f4445ba50f39"},"schema_version":"1.0","source":{"id":"1703.10167","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.10167","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"arxiv_version","alias_value":"1703.10167v1","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.10167","created_at":"2026-05-18T00:43:51Z"},{"alias_kind":"pith_short_12","alias_value":"6FVIWQCR6Q4R","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_16","alias_value":"6FVIWQCR6Q4RIKOI","created_at":"2026-05-18T12:31:03Z"},{"alias_kind":"pith_short_8","alias_value":"6FVIWQCR","created_at":"2026-05-18T12:31:03Z"}],"graph_snapshots":[{"event_id":"sha256:569bf858fd9f8a48339e8a33a7c4d584e692402b6e97f3667cd0c252fa46238e","target":"graph","created_at":"2026-05-18T00:43:51Z","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":"Sub-subgiants are stars observed to be redder than normal main-sequence stars and fainter than normal subgiant (and giant) stars in an optical color-magnitude diagram. The red straggler stars, which lie redward of the red giant branch, may be related and are often grouped together with the sub-subgiants in the literature. These stars defy our standard theory of single-star evolution, and are important tests for binary evolution and stellar collision models. In total, we identify 65 sub-subgiants and red stragglers in 16 open and globular star clusters from the literature; 50 of these, includin","authors_text":"Aaron M. Geller, Alison Sills, Andrea Bellini, Daryl Haggard, David Zurek, Emily M. Leiner, Laura L. Watkins, Nathan W. C. Leigh, Robert D. Mathieu, Robert Gleisinger, Sebastian Kamann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-29T18:00:01Z","title":"On the Origin of Sub-subgiant Stars. I. Demographics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.10167","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":"sha256:289a49f5a42dd1f604c8bcbe5b322a141ad284b98e6a4f9821abc2f3919be27c","target":"record","created_at":"2026-05-18T00:43:51Z","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":"79806710a7a4449296dcbabe5371e36164926469abec7ec5f3e891887fac9879","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-03-29T18:00:01Z","title_canon_sha256":"5b7f85c48a0099abe850b7e6dbff01db94d3868c4f2ebdbc0063f4445ba50f39"},"schema_version":"1.0","source":{"id":"1703.10167","kind":"arxiv","version":1}},"canonical_sha256":"f16a8b4051f4391429c8c9a012080f648899c56d145adfa1d73f3eae334fa76c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f16a8b4051f4391429c8c9a012080f648899c56d145adfa1d73f3eae334fa76c","first_computed_at":"2026-05-18T00:43:51.158844Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:51.158844Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gBjcSagMsqrKYcDFSbd00Kzf8kThoYHLj6RhzOplcIYPUpSb0sWvFYsoOLCsDFtjP4r9jR88rnWMSxB+/pI8DA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:51.159502Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.10167","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:289a49f5a42dd1f604c8bcbe5b322a141ad284b98e6a4f9821abc2f3919be27c","sha256:569bf858fd9f8a48339e8a33a7c4d584e692402b6e97f3667cd0c252fa46238e"],"state_sha256":"629eb31bb728872649b07016be7dd9552eb2eb89872c5ff4a2cfa1f0fe920888"}