{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:7WKWT4U7OXUOIRUNUTURB4565G","short_pith_number":"pith:7WKWT4U7","canonical_record":{"source":{"id":"0810.2535","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-10-14T20:00:16Z","cross_cats_sorted":[],"title_canon_sha256":"17df89d4bf72c6aaa17dbf7a30aadd2da5a140064a4b2d7ca82227a85e383523","abstract_canon_sha256":"8c74fd5ce9eb61cf8d737ee6dc17febd1c550aae41052ee398eef2e693f4a6c7"},"schema_version":"1.0"},"canonical_sha256":"fd9569f29f75e8e4468da4e910f3bee99cc8b1b57f42341a2e3237cf848a79f8","source":{"kind":"arxiv","id":"0810.2535","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.2535","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"arxiv_version","alias_value":"0810.2535v2","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.2535","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"pith_short_12","alias_value":"7WKWT4U7OXUO","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"7WKWT4U7OXUOIRUN","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"7WKWT4U7","created_at":"2026-05-18T12:25:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:7WKWT4U7OXUOIRUNUTURB4565G","target":"record","payload":{"canonical_record":{"source":{"id":"0810.2535","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-10-14T20:00:16Z","cross_cats_sorted":[],"title_canon_sha256":"17df89d4bf72c6aaa17dbf7a30aadd2da5a140064a4b2d7ca82227a85e383523","abstract_canon_sha256":"8c74fd5ce9eb61cf8d737ee6dc17febd1c550aae41052ee398eef2e693f4a6c7"},"schema_version":"1.0"},"canonical_sha256":"fd9569f29f75e8e4468da4e910f3bee99cc8b1b57f42341a2e3237cf848a79f8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:31.895155Z","signature_b64":"dKDuRKms/AtYvtWmOtohB98E6WxD9GSy96NcHGI8g9H7S2USfax7hvGZbC4+x65c15dw3duGAkK6bcNq0LEcDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd9569f29f75e8e4468da4e910f3bee99cc8b1b57f42341a2e3237cf848a79f8","last_reissued_at":"2026-05-18T02:15:31.894432Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:31.894432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0810.2535","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:15:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zcojiYRvk3L96Ufx/E0y+mCaQEXadxfzfAi/RLjdjhfikOfy8H95UlYvQTtYjV72gpknm6G3KmQtqkpZ5KYfDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:30:10.505161Z"},"content_sha256":"67c61cf6bb5496692437e8550d175020d103c2f4fd86a8b2c15be59940fc7c04","schema_version":"1.0","event_id":"sha256:67c61cf6bb5496692437e8550d175020d103c2f4fd86a8b2c15be59940fc7c04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:7WKWT4U7OXUOIRUNUTURB4565G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutron-Rich Freeze-Out in Viscously Spreading Accretion Disks Formed from Compact Object Mergers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. L. Piro, B. D. Metzger, E. Quataert","submitted_at":"2008-10-14T20:00:16Z","abstract_excerpt":"Accretion disks with masses ~0.001-0.1 Msun form during the merger of neutron star (NS)-NS and black hole-NS binaries. Initially, such hyper-accreting disks cool efficiently by neutrino emission and their composition is driven neutron-rich by pair captures under degenerate conditions. However, as the disk viscously spreads and its temperature drops, cooling becomes inefficient and the disk becomes advective. Analytic arguments and numerical simulations suggest that once this occurs, powerful winds likely drive away most of the disk's remaining mass. We calculate the thermal evolution and nucle"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.2535","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T02:15:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f1u210d9S75yoDTWK5Fi0v682LTXDfY5QXHKfidW1ENrcLIZc6/48/kQubTh3ey8nd25eJJdnmE0Z2Dbd8k8AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:30:10.505525Z"},"content_sha256":"30dd207359b62b99df139ba8c6ad205aa96ca657dfc8de13c25b085b4551efd9","schema_version":"1.0","event_id":"sha256:30dd207359b62b99df139ba8c6ad205aa96ca657dfc8de13c25b085b4551efd9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7WKWT4U7OXUOIRUNUTURB4565G/bundle.json","state_url":"https://pith.science/pith/7WKWT4U7OXUOIRUNUTURB4565G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7WKWT4U7OXUOIRUNUTURB4565G/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":"2026-05-26T04:30:10Z","links":{"resolver":"https://pith.science/pith/7WKWT4U7OXUOIRUNUTURB4565G","bundle":"https://pith.science/pith/7WKWT4U7OXUOIRUNUTURB4565G/bundle.json","state":"https://pith.science/pith/7WKWT4U7OXUOIRUNUTURB4565G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7WKWT4U7OXUOIRUNUTURB4565G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:7WKWT4U7OXUOIRUNUTURB4565G","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":"8c74fd5ce9eb61cf8d737ee6dc17febd1c550aae41052ee398eef2e693f4a6c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-10-14T20:00:16Z","title_canon_sha256":"17df89d4bf72c6aaa17dbf7a30aadd2da5a140064a4b2d7ca82227a85e383523"},"schema_version":"1.0","source":{"id":"0810.2535","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0810.2535","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"arxiv_version","alias_value":"0810.2535v2","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0810.2535","created_at":"2026-05-18T02:15:31Z"},{"alias_kind":"pith_short_12","alias_value":"7WKWT4U7OXUO","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"7WKWT4U7OXUOIRUN","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"7WKWT4U7","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:30dd207359b62b99df139ba8c6ad205aa96ca657dfc8de13c25b085b4551efd9","target":"graph","created_at":"2026-05-18T02:15:31Z","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":"Accretion disks with masses ~0.001-0.1 Msun form during the merger of neutron star (NS)-NS and black hole-NS binaries. Initially, such hyper-accreting disks cool efficiently by neutrino emission and their composition is driven neutron-rich by pair captures under degenerate conditions. However, as the disk viscously spreads and its temperature drops, cooling becomes inefficient and the disk becomes advective. Analytic arguments and numerical simulations suggest that once this occurs, powerful winds likely drive away most of the disk's remaining mass. We calculate the thermal evolution and nucle","authors_text":"A. L. Piro, B. D. Metzger, E. Quataert","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-10-14T20:00:16Z","title":"Neutron-Rich Freeze-Out in Viscously Spreading Accretion Disks Formed from Compact Object Mergers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0810.2535","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":"sha256:67c61cf6bb5496692437e8550d175020d103c2f4fd86a8b2c15be59940fc7c04","target":"record","created_at":"2026-05-18T02:15:31Z","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":"8c74fd5ce9eb61cf8d737ee6dc17febd1c550aae41052ee398eef2e693f4a6c7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-10-14T20:00:16Z","title_canon_sha256":"17df89d4bf72c6aaa17dbf7a30aadd2da5a140064a4b2d7ca82227a85e383523"},"schema_version":"1.0","source":{"id":"0810.2535","kind":"arxiv","version":2}},"canonical_sha256":"fd9569f29f75e8e4468da4e910f3bee99cc8b1b57f42341a2e3237cf848a79f8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd9569f29f75e8e4468da4e910f3bee99cc8b1b57f42341a2e3237cf848a79f8","first_computed_at":"2026-05-18T02:15:31.894432Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:31.894432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dKDuRKms/AtYvtWmOtohB98E6WxD9GSy96NcHGI8g9H7S2USfax7hvGZbC4+x65c15dw3duGAkK6bcNq0LEcDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:31.895155Z","signed_message":"canonical_sha256_bytes"},"source_id":"0810.2535","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67c61cf6bb5496692437e8550d175020d103c2f4fd86a8b2c15be59940fc7c04","sha256:30dd207359b62b99df139ba8c6ad205aa96ca657dfc8de13c25b085b4551efd9"],"state_sha256":"2a2d7db54a7387f81dd27eaf66b23768930c2913fbaf6827744934d0ff35ba56"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e7smlDte9g2BvV/9qNZiPAc3jFOKY0ayiahy0VBUs7tx98t7M7OHKvuH/wMW1uPul1CR41pdi2+vBhP+kNB0BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T04:30:10.507669Z","bundle_sha256":"45af0f439a7181af37e21f925d3066092f22ec506ed3f7bc1beb36e57a95acb2"}}