{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:LAWE3ZDQ55QNSLNKR2II57KOKI","short_pith_number":"pith:LAWE3ZDQ","canonical_record":{"source":{"id":"2303.15515","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-27T18:00:08Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"title_canon_sha256":"cb693ad32de9449b0ff06b71a285609c1c43b398501c193aa0c1c2e63c86bca2","abstract_canon_sha256":"d0bde9aaa20ca3f96a7948516dac0229fd96a73528cdd02c6b8143b90f9391b8"},"schema_version":"1.0"},"canonical_sha256":"582c4de470ef60d92daa8e908efd4e5213a2ace1fda4c69e5668766ab721ad7e","source":{"kind":"arxiv","id":"2303.15515","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.15515","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"arxiv_version","alias_value":"2303.15515v4","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.15515","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"pith_short_12","alias_value":"LAWE3ZDQ55QN","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"pith_short_16","alias_value":"LAWE3ZDQ55QNSLNK","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"pith_short_8","alias_value":"LAWE3ZDQ","created_at":"2026-07-05T07:38:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:LAWE3ZDQ55QNSLNKR2II57KOKI","target":"record","payload":{"canonical_record":{"source":{"id":"2303.15515","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-27T18:00:08Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"title_canon_sha256":"cb693ad32de9449b0ff06b71a285609c1c43b398501c193aa0c1c2e63c86bca2","abstract_canon_sha256":"d0bde9aaa20ca3f96a7948516dac0229fd96a73528cdd02c6b8143b90f9391b8"},"schema_version":"1.0"},"canonical_sha256":"582c4de470ef60d92daa8e908efd4e5213a2ace1fda4c69e5668766ab721ad7e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:38:26.480918Z","signature_b64":"IHgXRO0wRXPSwfCO8bMMUtR1rv0Esqhi4m7GbHgiHBfs5vNCllr5GXJPbi2trWdnPzXaij8BpXZdWwnUPngfCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"582c4de470ef60d92daa8e908efd4e5213a2ace1fda4c69e5668766ab721ad7e","last_reissued_at":"2026-07-05T07:38:26.480498Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:38:26.480498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.15515","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:38:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XoDhZyq2qeHlC+s2GlXWLAm0LYQPXb3rgWMTVbd4wjy/4y0PNT4+lyfegfSmUYIW9U+Cj5k2ED0uNO4mFMViAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:29:30.760715Z"},"content_sha256":"db4abeef24727c255f5e23868cc8effe3a84816e4333ddeea3d7c43e8385a54c","schema_version":"1.0","event_id":"sha256:db4abeef24727c255f5e23868cc8effe3a84816e4333ddeea3d7c43e8385a54c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:LAWE3ZDQ55QNSLNKR2II57KOKI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Binary black hole mergers from Population III stars: uncertainties from star formation and binary star properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Filippo Santoliquido, Giuliano Iorio, Guglielmo Costa, Lorenzo Merli, Michela Mapelli, Ralf S. Klessen, Simon C. O. Glover, Tilman Hartwig","submitted_at":"2023-03-27T18:00:08Z","abstract_excerpt":"Population III (Pop. III) binary stars likely produced the first stellar-born binary black hole (BBH) mergers in the Universe. Here, we quantify the main sources of uncertainty for the merger rate density evolution and mass spectrum of Pop. III BBHs by considering four different formation histories and 11 models of the initial orbital properties of Pop. III binary stars. The uncertainty on the orbital properties affects the BBH merger rate density by up to two orders of magnitude, models with shorter orbital periods leading to higher BBH merger rates. The uncertainty on the star formation hist"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.15515","kind":"arxiv","version":4},"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/2303.15515/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":"2026-07-05T07:38:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ea1H73BFTZk1jQgPz5C1Ikvu0KB5uk7RqFtzmtv450OP+KKdMNlYYEcJZY/bp18mXjEyRVQYHnSRZ8G/+3SgCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:29:30.761320Z"},"content_sha256":"6cb84b0a6c73294962d9cf1c13ad177705f45d3f3ca73858f616c694d44db6cc","schema_version":"1.0","event_id":"sha256:6cb84b0a6c73294962d9cf1c13ad177705f45d3f3ca73858f616c694d44db6cc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LAWE3ZDQ55QNSLNKR2II57KOKI/bundle.json","state_url":"https://pith.science/pith/LAWE3ZDQ55QNSLNKR2II57KOKI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LAWE3ZDQ55QNSLNKR2II57KOKI/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":"2026-08-06T13:29:30Z","links":{"resolver":"https://pith.science/pith/LAWE3ZDQ55QNSLNKR2II57KOKI","bundle":"https://pith.science/pith/LAWE3ZDQ55QNSLNKR2II57KOKI/bundle.json","state":"https://pith.science/pith/LAWE3ZDQ55QNSLNKR2II57KOKI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LAWE3ZDQ55QNSLNKR2II57KOKI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:LAWE3ZDQ55QNSLNKR2II57KOKI","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":"d0bde9aaa20ca3f96a7948516dac0229fd96a73528cdd02c6b8143b90f9391b8","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-27T18:00:08Z","title_canon_sha256":"cb693ad32de9449b0ff06b71a285609c1c43b398501c193aa0c1c2e63c86bca2"},"schema_version":"1.0","source":{"id":"2303.15515","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.15515","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"arxiv_version","alias_value":"2303.15515v4","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.15515","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"pith_short_12","alias_value":"LAWE3ZDQ55QN","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"pith_short_16","alias_value":"LAWE3ZDQ55QNSLNK","created_at":"2026-07-05T07:38:26Z"},{"alias_kind":"pith_short_8","alias_value":"LAWE3ZDQ","created_at":"2026-07-05T07:38:26Z"}],"graph_snapshots":[{"event_id":"sha256:6cb84b0a6c73294962d9cf1c13ad177705f45d3f3ca73858f616c694d44db6cc","target":"graph","created_at":"2026-07-05T07:38:26Z","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/2303.15515/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Population III (Pop. III) binary stars likely produced the first stellar-born binary black hole (BBH) mergers in the Universe. Here, we quantify the main sources of uncertainty for the merger rate density evolution and mass spectrum of Pop. III BBHs by considering four different formation histories and 11 models of the initial orbital properties of Pop. III binary stars. The uncertainty on the orbital properties affects the BBH merger rate density by up to two orders of magnitude, models with shorter orbital periods leading to higher BBH merger rates. The uncertainty on the star formation hist","authors_text":"Filippo Santoliquido, Giuliano Iorio, Guglielmo Costa, Lorenzo Merli, Michela Mapelli, Ralf S. Klessen, Simon C. O. Glover, Tilman Hartwig","cross_cats":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-27T18:00:08Z","title":"Binary black hole mergers from Population III stars: uncertainties from star formation and binary star properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.15515","kind":"arxiv","version":4},"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:db4abeef24727c255f5e23868cc8effe3a84816e4333ddeea3d7c43e8385a54c","target":"record","created_at":"2026-07-05T07:38:26Z","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":"d0bde9aaa20ca3f96a7948516dac0229fd96a73528cdd02c6b8143b90f9391b8","cross_cats_sorted":["astro-ph.CO","astro-ph.HE","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-27T18:00:08Z","title_canon_sha256":"cb693ad32de9449b0ff06b71a285609c1c43b398501c193aa0c1c2e63c86bca2"},"schema_version":"1.0","source":{"id":"2303.15515","kind":"arxiv","version":4}},"canonical_sha256":"582c4de470ef60d92daa8e908efd4e5213a2ace1fda4c69e5668766ab721ad7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"582c4de470ef60d92daa8e908efd4e5213a2ace1fda4c69e5668766ab721ad7e","first_computed_at":"2026-07-05T07:38:26.480498Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:38:26.480498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IHgXRO0wRXPSwfCO8bMMUtR1rv0Esqhi4m7GbHgiHBfs5vNCllr5GXJPbi2trWdnPzXaij8BpXZdWwnUPngfCg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:38:26.480918Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.15515","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:db4abeef24727c255f5e23868cc8effe3a84816e4333ddeea3d7c43e8385a54c","sha256:6cb84b0a6c73294962d9cf1c13ad177705f45d3f3ca73858f616c694d44db6cc"],"state_sha256":"64653947e4d61412bb0d23cfe88807effe9e760b199c0af3075b006cf337071b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WXb8RzfA/haevLh8zRAWohJzdEDGvEllricRFbSr7k293P7H81MXdmrEmUtRlZWABDxcqnTor0Z6KoHTSC6uAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T13:29:30.765128Z","bundle_sha256":"755f385d74bfd137cc4c8769066fbc2cbbf80ffa3c1537f57a834bb463c0101a"}}