{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YQIPRBE64X6HNHCBFDTBCTFWUF","short_pith_number":"pith:YQIPRBE6","canonical_record":{"source":{"id":"1808.08004","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-08-24T05:05:45Z","cross_cats_sorted":[],"title_canon_sha256":"5b8d242b3361982e05829acf7384f0d33a16b5fa4018c380c6e04f79ab739e0d","abstract_canon_sha256":"b7783cb3b2698ef5ddd798c040aa822f1105ae9fe8a98c988aa6d6002b463e1e"},"schema_version":"1.0"},"canonical_sha256":"c410f8849ee5fc769c4128e6114cb6a17fafb843c63331b78168d7f01f24e4d6","source":{"kind":"arxiv","id":"1808.08004","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.08004","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"arxiv_version","alias_value":"1808.08004v2","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.08004","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"pith_short_12","alias_value":"YQIPRBE64X6H","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"pith_short_16","alias_value":"YQIPRBE64X6HNHCB","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"pith_short_8","alias_value":"YQIPRBE6","created_at":"2026-07-05T00:55:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YQIPRBE64X6HNHCBFDTBCTFWUF","target":"record","payload":{"canonical_record":{"source":{"id":"1808.08004","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-08-24T05:05:45Z","cross_cats_sorted":[],"title_canon_sha256":"5b8d242b3361982e05829acf7384f0d33a16b5fa4018c380c6e04f79ab739e0d","abstract_canon_sha256":"b7783cb3b2698ef5ddd798c040aa822f1105ae9fe8a98c988aa6d6002b463e1e"},"schema_version":"1.0"},"canonical_sha256":"c410f8849ee5fc769c4128e6114cb6a17fafb843c63331b78168d7f01f24e4d6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:55:55.222934Z","signature_b64":"eCBsGJIs1UxDkcKzML3O3kGfB/m2j2MffKDPxDX/47WE6vQiDGrU5xpxIKvu5F4OkF/ylXMockARB4WpkLajAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c410f8849ee5fc769c4128e6114cb6a17fafb843c63331b78168d7f01f24e4d6","last_reissued_at":"2026-07-05T00:55:55.222380Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:55:55.222380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.08004","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":"2026-07-05T00:55:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x6dfDRdczyKcVfswrH+KD/1wusG3/IE/JRZ7YCKKAIlS62KkRvaciiHA+5l1CRQwjuX9nd8GI3pgFNe3HCYeAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T01:58:19.397590Z"},"content_sha256":"278571f299b838c74bce51d141adfde349224f5c0fe3d73154d6083e136ec385","schema_version":"1.0","event_id":"sha256:278571f299b838c74bce51d141adfde349224f5c0fe3d73154d6083e136ec385"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YQIPRBE64X6HNHCBFDTBCTFWUF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the parameters of GW150914 & GW170104 with numerical relativity surrogates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Bela Szilagyi, Chad R. Galley, Harald P. Pfeiffer, Jonathan Blackman, Lawrence E. Kidder, Mark Scheel, Michael Boyle, Prayush Kumar, Saul A. Teukolsky, Scott E. Field","submitted_at":"2018-08-24T05:05:45Z","abstract_excerpt":"Gravitational-wave detectors have begun to observe coalescences of heavy black holes at a consistent pace for the past few years. Accurate models of gravitational waveforms are essential for unbiased and precise estimation of source parameters. Recently developed surrogate models based on high-accuracy numerical relativity (NR) simulations are ideal for constraining physical parameters of heavy black hole merger events. In this paper, we first demonstrate the viability of these multi-modal surrogates as reliable parameter estimation tools. We show that NR surrogates can extract additional info"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.08004","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1808.08004/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":"2026-07-05T00:55:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UOvnLdhR0i6fzhZOk1R8v3hlgK9ngXt/p2UspQtiIVDOn5pIHZz9pYoTZMYSF6Lw5GdXUuxlSfwCu3aj6MKKCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T01:58:19.398102Z"},"content_sha256":"19e3cce735f0dc6cd2d28446e8bdd9115ea8bee0aa40fbf99847c75611ea226e","schema_version":"1.0","event_id":"sha256:19e3cce735f0dc6cd2d28446e8bdd9115ea8bee0aa40fbf99847c75611ea226e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YQIPRBE64X6HNHCBFDTBCTFWUF/bundle.json","state_url":"https://pith.science/pith/YQIPRBE64X6HNHCBFDTBCTFWUF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YQIPRBE64X6HNHCBFDTBCTFWUF/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":"2026-08-14T01:58:19Z","links":{"resolver":"https://pith.science/pith/YQIPRBE64X6HNHCBFDTBCTFWUF","bundle":"https://pith.science/pith/YQIPRBE64X6HNHCBFDTBCTFWUF/bundle.json","state":"https://pith.science/pith/YQIPRBE64X6HNHCBFDTBCTFWUF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YQIPRBE64X6HNHCBFDTBCTFWUF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YQIPRBE64X6HNHCBFDTBCTFWUF","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":"b7783cb3b2698ef5ddd798c040aa822f1105ae9fe8a98c988aa6d6002b463e1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-08-24T05:05:45Z","title_canon_sha256":"5b8d242b3361982e05829acf7384f0d33a16b5fa4018c380c6e04f79ab739e0d"},"schema_version":"1.0","source":{"id":"1808.08004","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.08004","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"arxiv_version","alias_value":"1808.08004v2","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.08004","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"pith_short_12","alias_value":"YQIPRBE64X6H","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"pith_short_16","alias_value":"YQIPRBE64X6HNHCB","created_at":"2026-07-05T00:55:55Z"},{"alias_kind":"pith_short_8","alias_value":"YQIPRBE6","created_at":"2026-07-05T00:55:55Z"}],"graph_snapshots":[{"event_id":"sha256:19e3cce735f0dc6cd2d28446e8bdd9115ea8bee0aa40fbf99847c75611ea226e","target":"graph","created_at":"2026-07-05T00:55:55Z","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/1808.08004/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Gravitational-wave detectors have begun to observe coalescences of heavy black holes at a consistent pace for the past few years. Accurate models of gravitational waveforms are essential for unbiased and precise estimation of source parameters. Recently developed surrogate models based on high-accuracy numerical relativity (NR) simulations are ideal for constraining physical parameters of heavy black hole merger events. In this paper, we first demonstrate the viability of these multi-modal surrogates as reliable parameter estimation tools. We show that NR surrogates can extract additional info","authors_text":"Bela Szilagyi, Chad R. Galley, Harald P. Pfeiffer, Jonathan Blackman, Lawrence E. Kidder, Mark Scheel, Michael Boyle, Prayush Kumar, Saul A. Teukolsky, Scott E. Field","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-08-24T05:05:45Z","title":"Constraining the parameters of GW150914 & GW170104 with numerical relativity surrogates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.08004","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":"sha256:278571f299b838c74bce51d141adfde349224f5c0fe3d73154d6083e136ec385","target":"record","created_at":"2026-07-05T00:55:55Z","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":"b7783cb3b2698ef5ddd798c040aa822f1105ae9fe8a98c988aa6d6002b463e1e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-08-24T05:05:45Z","title_canon_sha256":"5b8d242b3361982e05829acf7384f0d33a16b5fa4018c380c6e04f79ab739e0d"},"schema_version":"1.0","source":{"id":"1808.08004","kind":"arxiv","version":2}},"canonical_sha256":"c410f8849ee5fc769c4128e6114cb6a17fafb843c63331b78168d7f01f24e4d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c410f8849ee5fc769c4128e6114cb6a17fafb843c63331b78168d7f01f24e4d6","first_computed_at":"2026-07-05T00:55:55.222380Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:55:55.222380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eCBsGJIs1UxDkcKzML3O3kGfB/m2j2MffKDPxDX/47WE6vQiDGrU5xpxIKvu5F4OkF/ylXMockARB4WpkLajAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:55:55.222934Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.08004","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:278571f299b838c74bce51d141adfde349224f5c0fe3d73154d6083e136ec385","sha256:19e3cce735f0dc6cd2d28446e8bdd9115ea8bee0aa40fbf99847c75611ea226e"],"state_sha256":"55836f8f871caeefcf1771bec352a6d2ce91260c4ec65ea8c05bbb7af8cffe82"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mdYwlouFDnih2OP6QqmmGrWaEO8pePiYihvMXf4JA2jbbxrYq8W4uhMMsBERF4d13DFnVsFzy4hm2l5ur2ugCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T01:58:19.403255Z","bundle_sha256":"02c40f802b6cf3e371ee45bedb3d6aed3a35c6243671c8c15f1e7ca430a2a2e5"}}