{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:FKCDJZSKEWAFISUVGHDI6A4LCX","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":"1ddf2538eca621000236624851175bc33383892b16a8aee81d63eb8ac024aa83","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-24T20:00:04Z","title_canon_sha256":"8fb9f9b3767c7adc2100e7a1f645334b7b20c0f8b2951cf399b4f87a2fb8a4b0"},"schema_version":"1.0","source":{"id":"1204.5478","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5478","created_at":"2026-05-18T03:50:12Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5478v2","created_at":"2026-05-18T03:50:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5478","created_at":"2026-05-18T03:50:12Z"},{"alias_kind":"pith_short_12","alias_value":"FKCDJZSKEWAF","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FKCDJZSKEWAFISUV","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FKCDJZSK","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:13f3e1db2f82f93c07ac7466fbcfb2524485c593821b0b06de8d21f508ebbfb0","target":"graph","created_at":"2026-05-18T03:50:12Z","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":"The observed distribution of neutron star (NS) masses reflects the physics of core-collapse supernova explosions and the structure of the massive stars that produce them at the end of their evolution. We present a Bayesian analysis that directly compares the NS mass distribution observed in double NS systems to theoretical models of NS formation. We find that models with standard binary mass ratio distributions are strongly preferred over independently picking the masses from the initial mass function, although the strength of the inference depends on whether current assumptions for identifyin","authors_text":"Christopher S. Kochanek, Ondrej Pejcha, Todd A. Thompson","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-24T20:00:04Z","title":"The observed neutron star mass distribution as a probe of the supernova explosion mechanism"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5478","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:d775d4d728c79012a0f49d32854f018fde9dec64907f3af22c5999c2b0da608d","target":"record","created_at":"2026-05-18T03:50:12Z","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":"1ddf2538eca621000236624851175bc33383892b16a8aee81d63eb8ac024aa83","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-04-24T20:00:04Z","title_canon_sha256":"8fb9f9b3767c7adc2100e7a1f645334b7b20c0f8b2951cf399b4f87a2fb8a4b0"},"schema_version":"1.0","source":{"id":"1204.5478","kind":"arxiv","version":2}},"canonical_sha256":"2a8434e64a2580544a9531c68f038b15d822d5f3a6db222a39f498639e634c49","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a8434e64a2580544a9531c68f038b15d822d5f3a6db222a39f498639e634c49","first_computed_at":"2026-05-18T03:50:12.046223Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:50:12.046223Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wJZtjF8uMxik5HF50IEwJxuejHHgwHxKO9CwSJ2gReoqXZc0VSS+vPHjWR32yEapGlw4YbbC4wDTCjFEbyHFDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:50:12.046968Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5478","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d775d4d728c79012a0f49d32854f018fde9dec64907f3af22c5999c2b0da608d","sha256:13f3e1db2f82f93c07ac7466fbcfb2524485c593821b0b06de8d21f508ebbfb0"],"state_sha256":"55a47cf4fecccc77ea31856be198a9dfdc716c9b9a9f39893a4378f7368a198d"}