{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:Q3T5DEPSPENQDI4LT5XQ4H7OED","short_pith_number":"pith:Q3T5DEPS","canonical_record":{"source":{"id":"2304.07397","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-04-14T21:26:06Z","cross_cats_sorted":[],"title_canon_sha256":"8050f600a4d9ee907d552650db422b900202ce557c2cdd3c7849f8ab06d3371c","abstract_canon_sha256":"84ff32ed1dae3c0dfb1ae3d0e36162b9439f4922bce0e80dd1b4c80594c99faa"},"schema_version":"1.0"},"canonical_sha256":"86e7d191f2791b01a38b9f6f0e1fee20fd2896a7c1896ff607f76976f25496ab","source":{"kind":"arxiv","id":"2304.07397","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.07397","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"2304.07397v1","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.07397","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"Q3T5DEPSPENQ","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"Q3T5DEPSPENQDI4L","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"Q3T5DEPS","created_at":"2026-07-05T06:27:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:Q3T5DEPSPENQDI4LT5XQ4H7OED","target":"record","payload":{"canonical_record":{"source":{"id":"2304.07397","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-04-14T21:26:06Z","cross_cats_sorted":[],"title_canon_sha256":"8050f600a4d9ee907d552650db422b900202ce557c2cdd3c7849f8ab06d3371c","abstract_canon_sha256":"84ff32ed1dae3c0dfb1ae3d0e36162b9439f4922bce0e80dd1b4c80594c99faa"},"schema_version":"1.0"},"canonical_sha256":"86e7d191f2791b01a38b9f6f0e1fee20fd2896a7c1896ff607f76976f25496ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:27:21.693188Z","signature_b64":"byyou84ahujK44I7NgSA35Dq/40BwWyd+paL8vO2wKwRv3BFoBbOgYFCLWF2kCJl5ZTbzC5wSwHlo1qIdiRVAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86e7d191f2791b01a38b9f6f0e1fee20fd2896a7c1896ff607f76976f25496ab","last_reissued_at":"2026-07-05T06:27:21.692662Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:27:21.692662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.07397","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uC05/jwVkZJoUBab1d3MBSYeDh8fdIeKCgQfOMTSyfYxlDRKNd8bgQykYX71e4r3xPPV86qkcDu3vYQDvcmtCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T14:14:47.471953Z"},"content_sha256":"a48141b62643ab5b497f4f58f8222c36d3142c5044be040d8fb81b630e52aba4","schema_version":"1.0","event_id":"sha256:a48141b62643ab5b497f4f58f8222c36d3142c5044be040d8fb81b630e52aba4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:Q3T5DEPSPENQDI4LT5XQ4H7OED","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precise Age for the Binary Star System 12 Com in the Coma Berenices Cluster","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Benjamin R. Setterholm, Christopher D. Farrington, Claire L. Davies, Cyprien Lanthermann, Eric L. Sandquist, Gail H. Schaefer, Jacob Ennis, Jerome A. Orosz, John D. Monnier, Narsireddy Anugu, Rex Lam, Robert Klement, Stefan Kraus, Tyler Gardner","submitted_at":"2023-04-14T21:26:06Z","abstract_excerpt":"We present measurements of the interferometrically-resolved binary star system 12 Com and the single giant star 31 Com in the cluster Coma Berenices. 12 Com is a double-lined spectroscopic binary system consisting of a G7 giant and an A3 dwarf at the cluster turnoff. Using an extensive radial velocity dataset and interferometric measurements from PTI and the CHARA array, we measured masses $M_1 =2.64 \\pm 0.07 M_\\odot$ and $M_2 =2.10 \\pm 0.03 M_\\odot$. Interferometry also allows us to resolve the giant, and measure its size as $R_1 = 9.12 \\pm 0.12 \\pm 0.01 R_\\odot$. With the measured masses and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.07397","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2304.07397/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T06:27:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pMvlK21wz4aSTiwaSLqMehaRNmbuyBxOTfhBf9dOwduXRzec1ycM9fETOUOmwQ85jp7pKsQlPep5QnGPa4rDCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T14:14:47.472253Z"},"content_sha256":"b86b98c8239b5300f3c78dfb6141abb0a2b90046bfda38017e4dde2af2b2f008","schema_version":"1.0","event_id":"sha256:b86b98c8239b5300f3c78dfb6141abb0a2b90046bfda38017e4dde2af2b2f008"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q3T5DEPSPENQDI4LT5XQ4H7OED/bundle.json","state_url":"https://pith.science/pith/Q3T5DEPSPENQDI4LT5XQ4H7OED/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q3T5DEPSPENQDI4LT5XQ4H7OED/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":"2026-07-31T14:14:47Z","links":{"resolver":"https://pith.science/pith/Q3T5DEPSPENQDI4LT5XQ4H7OED","bundle":"https://pith.science/pith/Q3T5DEPSPENQDI4LT5XQ4H7OED/bundle.json","state":"https://pith.science/pith/Q3T5DEPSPENQDI4LT5XQ4H7OED/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q3T5DEPSPENQDI4LT5XQ4H7OED/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:Q3T5DEPSPENQDI4LT5XQ4H7OED","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":"84ff32ed1dae3c0dfb1ae3d0e36162b9439f4922bce0e80dd1b4c80594c99faa","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-04-14T21:26:06Z","title_canon_sha256":"8050f600a4d9ee907d552650db422b900202ce557c2cdd3c7849f8ab06d3371c"},"schema_version":"1.0","source":{"id":"2304.07397","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.07397","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"arxiv_version","alias_value":"2304.07397v1","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.07397","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_12","alias_value":"Q3T5DEPSPENQ","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_16","alias_value":"Q3T5DEPSPENQDI4L","created_at":"2026-07-05T06:27:21Z"},{"alias_kind":"pith_short_8","alias_value":"Q3T5DEPS","created_at":"2026-07-05T06:27:21Z"}],"graph_snapshots":[{"event_id":"sha256:b86b98c8239b5300f3c78dfb6141abb0a2b90046bfda38017e4dde2af2b2f008","target":"graph","created_at":"2026-07-05T06:27:21Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2304.07397/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present measurements of the interferometrically-resolved binary star system 12 Com and the single giant star 31 Com in the cluster Coma Berenices. 12 Com is a double-lined spectroscopic binary system consisting of a G7 giant and an A3 dwarf at the cluster turnoff. Using an extensive radial velocity dataset and interferometric measurements from PTI and the CHARA array, we measured masses $M_1 =2.64 \\pm 0.07 M_\\odot$ and $M_2 =2.10 \\pm 0.03 M_\\odot$. Interferometry also allows us to resolve the giant, and measure its size as $R_1 = 9.12 \\pm 0.12 \\pm 0.01 R_\\odot$. With the measured masses and","authors_text":"Benjamin R. Setterholm, Christopher D. Farrington, Claire L. Davies, Cyprien Lanthermann, Eric L. Sandquist, Gail H. Schaefer, Jacob Ennis, Jerome A. Orosz, John D. Monnier, Narsireddy Anugu, Rex Lam, Robert Klement, Stefan Kraus, Tyler Gardner","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-04-14T21:26:06Z","title":"Precise Age for the Binary Star System 12 Com in the Coma Berenices Cluster"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.07397","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:a48141b62643ab5b497f4f58f8222c36d3142c5044be040d8fb81b630e52aba4","target":"record","created_at":"2026-07-05T06:27:21Z","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":"84ff32ed1dae3c0dfb1ae3d0e36162b9439f4922bce0e80dd1b4c80594c99faa","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-04-14T21:26:06Z","title_canon_sha256":"8050f600a4d9ee907d552650db422b900202ce557c2cdd3c7849f8ab06d3371c"},"schema_version":"1.0","source":{"id":"2304.07397","kind":"arxiv","version":1}},"canonical_sha256":"86e7d191f2791b01a38b9f6f0e1fee20fd2896a7c1896ff607f76976f25496ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86e7d191f2791b01a38b9f6f0e1fee20fd2896a7c1896ff607f76976f25496ab","first_computed_at":"2026-07-05T06:27:21.692662Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:27:21.692662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"byyou84ahujK44I7NgSA35Dq/40BwWyd+paL8vO2wKwRv3BFoBbOgYFCLWF2kCJl5ZTbzC5wSwHlo1qIdiRVAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:27:21.693188Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.07397","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a48141b62643ab5b497f4f58f8222c36d3142c5044be040d8fb81b630e52aba4","sha256:b86b98c8239b5300f3c78dfb6141abb0a2b90046bfda38017e4dde2af2b2f008"],"state_sha256":"3710762dd7528bebda4ea794e117e7513088d242a28a599820cd611ef6a02bd9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9SMnBT8MhVA57ejOgmq98Wva+nL1Cw7Muk9gAuimeYBp31TiPeOnzyzrn4ViFU9mCawM00TSCczlwyzXw8ZqBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T14:14:47.474460Z","bundle_sha256":"8a0f6bbbd3fa8568484e712adb7be0edeefcc8258d99efc1c333e5bbdc5fcd25"}}