{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:T3HG2JOM77RLVLBQ4QYFSVGWQG","short_pith_number":"pith:T3HG2JOM","canonical_record":{"source":{"id":"2004.11913","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-24T18:00:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"2b1e21ce85c65ad61c8baa84f7f7ab9fbb80f1942e14211eba73ebb63adf5e57","abstract_canon_sha256":"fbaadc3a8e76799c021ac9c24415d4926447a5221f020f47f0a185f7e0969597"},"schema_version":"1.0"},"canonical_sha256":"9ece6d25ccffe2baac30e4305954d6819564acdae8c5c6e5aa32f069de5a85c9","source":{"kind":"arxiv","id":"2004.11913","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.11913","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"arxiv_version","alias_value":"2004.11913v1","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.11913","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"pith_short_12","alias_value":"T3HG2JOM77RL","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"pith_short_16","alias_value":"T3HG2JOM77RLVLBQ","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"pith_short_8","alias_value":"T3HG2JOM","created_at":"2026-07-05T01:00:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:T3HG2JOM77RLVLBQ4QYFSVGWQG","target":"record","payload":{"canonical_record":{"source":{"id":"2004.11913","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-24T18:00:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"2b1e21ce85c65ad61c8baa84f7f7ab9fbb80f1942e14211eba73ebb63adf5e57","abstract_canon_sha256":"fbaadc3a8e76799c021ac9c24415d4926447a5221f020f47f0a185f7e0969597"},"schema_version":"1.0"},"canonical_sha256":"9ece6d25ccffe2baac30e4305954d6819564acdae8c5c6e5aa32f069de5a85c9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:00:44.520477Z","signature_b64":"SuZM1Vk4xZvMRTzh8UJral+fGKF+PORdM3VlhBbEdhaY3a0jiS1cO/UF9bUBpd1D1KCO3TlLKZ8aTOuby3XkCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ece6d25ccffe2baac30e4305954d6819564acdae8c5c6e5aa32f069de5a85c9","last_reissued_at":"2026-07-05T01:00:44.520046Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:00:44.520046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2004.11913","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":"2026-07-05T01:00:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gOsZXiBSxgFiWF+XsBt1swNdYb3GSl/e8XTLnGAln7Vbe2wZA1Y10sjq6NjSwUN3cT8/5te4h7zNUTcdpl6pBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T11:18:35.907867Z"},"content_sha256":"5ddc30f1c9d51df6e6ee0b487a02bb9cea20ac214157fccaac04710abd37998d","schema_version":"1.0","event_id":"sha256:5ddc30f1c9d51df6e6ee0b487a02bb9cea20ac214157fccaac04710abd37998d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:T3HG2JOM77RLVLBQ4QYFSVGWQG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evaluating the impact of binary parameter uncertainty on stellar population properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"(2) Auckland, A. A. Chrimes (1), E. R. Stanway (1), H. F. Stevance (2). ((1) Warwick, J. J. Eldridge (2), NZ), UK","submitted_at":"2020-04-24T18:00:02Z","abstract_excerpt":"Binary stars have been shown to have a substantial impact on the integrated light of stellar populations, particularly at low metallicity and early ages - conditions prevalent in the distant Universe. But the fraction of stars in stellar multiples as a function of mass, their likely initial periods and distribution of mass ratios are all known empirically from observations only in the local Universe. Each has associated uncertainties. We explore the impact of these uncertainties in binary parameters on the properties of integrated stellar populations, considering which properties and timescale"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.11913","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/2004.11913/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":"2026-07-05T01:00:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"td+bMWJmLiCRKcqmoM5RBmv4+tRHM9dU7QUahZld/C8QEsG+RScLubC/Y+MJjrFtsxdK3gqLV2os2Ue042X+Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T11:18:35.908409Z"},"content_sha256":"c23f4a3bb3ad870c7f47a7a1a8937d071eeba28b8ebfb531b97dfebed4c9d26e","schema_version":"1.0","event_id":"sha256:c23f4a3bb3ad870c7f47a7a1a8937d071eeba28b8ebfb531b97dfebed4c9d26e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T3HG2JOM77RLVLBQ4QYFSVGWQG/bundle.json","state_url":"https://pith.science/pith/T3HG2JOM77RLVLBQ4QYFSVGWQG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T3HG2JOM77RLVLBQ4QYFSVGWQG/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":"2026-08-05T11:18:35Z","links":{"resolver":"https://pith.science/pith/T3HG2JOM77RLVLBQ4QYFSVGWQG","bundle":"https://pith.science/pith/T3HG2JOM77RLVLBQ4QYFSVGWQG/bundle.json","state":"https://pith.science/pith/T3HG2JOM77RLVLBQ4QYFSVGWQG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T3HG2JOM77RLVLBQ4QYFSVGWQG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:T3HG2JOM77RLVLBQ4QYFSVGWQG","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":"fbaadc3a8e76799c021ac9c24415d4926447a5221f020f47f0a185f7e0969597","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-24T18:00:02Z","title_canon_sha256":"2b1e21ce85c65ad61c8baa84f7f7ab9fbb80f1942e14211eba73ebb63adf5e57"},"schema_version":"1.0","source":{"id":"2004.11913","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.11913","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"arxiv_version","alias_value":"2004.11913v1","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.11913","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"pith_short_12","alias_value":"T3HG2JOM77RL","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"pith_short_16","alias_value":"T3HG2JOM77RLVLBQ","created_at":"2026-07-05T01:00:44Z"},{"alias_kind":"pith_short_8","alias_value":"T3HG2JOM","created_at":"2026-07-05T01:00:44Z"}],"graph_snapshots":[{"event_id":"sha256:c23f4a3bb3ad870c7f47a7a1a8937d071eeba28b8ebfb531b97dfebed4c9d26e","target":"graph","created_at":"2026-07-05T01:00:44Z","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/2004.11913/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Binary stars have been shown to have a substantial impact on the integrated light of stellar populations, particularly at low metallicity and early ages - conditions prevalent in the distant Universe. But the fraction of stars in stellar multiples as a function of mass, their likely initial periods and distribution of mass ratios are all known empirically from observations only in the local Universe. Each has associated uncertainties. We explore the impact of these uncertainties in binary parameters on the properties of integrated stellar populations, considering which properties and timescale","authors_text":"(2) Auckland, A. A. Chrimes (1), E. R. Stanway (1), H. F. Stevance (2). ((1) Warwick, J. J. Eldridge (2), NZ), UK","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-24T18:00:02Z","title":"Evaluating the impact of binary parameter uncertainty on stellar population properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.11913","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":"sha256:5ddc30f1c9d51df6e6ee0b487a02bb9cea20ac214157fccaac04710abd37998d","target":"record","created_at":"2026-07-05T01:00:44Z","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":"fbaadc3a8e76799c021ac9c24415d4926447a5221f020f47f0a185f7e0969597","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-24T18:00:02Z","title_canon_sha256":"2b1e21ce85c65ad61c8baa84f7f7ab9fbb80f1942e14211eba73ebb63adf5e57"},"schema_version":"1.0","source":{"id":"2004.11913","kind":"arxiv","version":1}},"canonical_sha256":"9ece6d25ccffe2baac30e4305954d6819564acdae8c5c6e5aa32f069de5a85c9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9ece6d25ccffe2baac30e4305954d6819564acdae8c5c6e5aa32f069de5a85c9","first_computed_at":"2026-07-05T01:00:44.520046Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:00:44.520046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SuZM1Vk4xZvMRTzh8UJral+fGKF+PORdM3VlhBbEdhaY3a0jiS1cO/UF9bUBpd1D1KCO3TlLKZ8aTOuby3XkCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:00:44.520477Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.11913","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ddc30f1c9d51df6e6ee0b487a02bb9cea20ac214157fccaac04710abd37998d","sha256:c23f4a3bb3ad870c7f47a7a1a8937d071eeba28b8ebfb531b97dfebed4c9d26e"],"state_sha256":"70409d887657c1bc70cdef3d682c9ab98ba853bcbbfbbd40c6c8cf83d38d3415"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Eat58QYVmKqkyTxElKxad7fwykfTqcMIFoYC/k968hBhWhZo0AWQJbfJSIduPM+MR5vRLfpwMLrXvqQK9gOvBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T11:18:35.912265Z","bundle_sha256":"cb60de8d3af3f8d0c648198df17caea844c54be1d1e82831699226ac306a982a"}}