{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:MNGNARRJ3CZR7KTJVFOGOSESOY","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":"9ec3603065ab79eb73ca8eda995915abce5397f932a548d233132f28e8f67946","cross_cats_sorted":["astro-ph.HE","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-29T20:04:12Z","title_canon_sha256":"65393eb4e024d544c779278b902b7dd8c0b26491996f9c83d72d85e56d57e9f7"},"schema_version":"1.0","source":{"id":"1304.7787","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.7787","created_at":"2026-05-18T01:50:14Z"},{"alias_kind":"arxiv_version","alias_value":"1304.7787v2","created_at":"2026-05-18T01:50:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.7787","created_at":"2026-05-18T01:50:14Z"},{"alias_kind":"pith_short_12","alias_value":"MNGNARRJ3CZR","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MNGNARRJ3CZR7KTJ","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MNGNARRJ","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:166d840a9f6267553435e3048c8402913c764e29a4e77d2c67d52ea3dab49711","target":"graph","created_at":"2026-05-18T01:50:14Z","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":"We study the collapse of rapidly rotating supermassive stars that may have formed in the early Universe. By self-consistently simulating the dynamics from the onset of collapse using three-dimensional general-relativistic hydrodynamics with fully dynamical spacetime evolution, we show that seed perturbations in the progenitor can lead to the formation of a system of two high-spin supermassive black holes, which inspiral and merge under the emission of powerful gravitational radiation that could be observed at redshifts z>10 with the DECIGO or Big Bang Observer gravitational-wave observatories,","authors_text":"(2) Perimeter Institute), Caltech, C. D. Ott (1), C. Reisswig (1), E. Abdikamalov (1), E. Schnetter (2) ((1) TAPIR, P. Moesta (1), R. Haas (1)","cross_cats":["astro-ph.HE","gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-29T20:04:12Z","title":"Formation and Coalescence of Cosmological Supermassive Black Hole Binaries in Supermassive Star Collapse"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.7787","kind":"arxiv","version":2},"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":"sha256:8b279e7586f17eb7ea3d87587dec3e1c5f198064d2ad405fa4dc4609bea2e6b3","target":"record","created_at":"2026-05-18T01:50:14Z","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":"9ec3603065ab79eb73ca8eda995915abce5397f932a548d233132f28e8f67946","cross_cats_sorted":["astro-ph.HE","gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-04-29T20:04:12Z","title_canon_sha256":"65393eb4e024d544c779278b902b7dd8c0b26491996f9c83d72d85e56d57e9f7"},"schema_version":"1.0","source":{"id":"1304.7787","kind":"arxiv","version":2}},"canonical_sha256":"634cd04629d8b31faa69a95c674892761c4a2ac226c8757bf2c044bd40a8c9bf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"634cd04629d8b31faa69a95c674892761c4a2ac226c8757bf2c044bd40a8c9bf","first_computed_at":"2026-05-18T01:50:14.405863Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:14.405863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u5J9yr58rQ+qvkWQfX4CeFP8BeKXe74ty+FNUOiUPWrWOSb4ZGMlcO/KTlCHbsOePpu5RnN1O4v8HUeV3bZxAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:14.406416Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.7787","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b279e7586f17eb7ea3d87587dec3e1c5f198064d2ad405fa4dc4609bea2e6b3","sha256:166d840a9f6267553435e3048c8402913c764e29a4e77d2c67d52ea3dab49711"],"state_sha256":"9487293926b6fcf3b797f9f6e1a4b332eb06f4c91834be2b921d13e7109fecc4"}