{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ALYW6GRLRCGLRO3CXDO365REPT","short_pith_number":"pith:ALYW6GRL","canonical_record":{"source":{"id":"1403.5672","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-03-22T15:13:32Z","cross_cats_sorted":["astro-ph.HE","astro-ph.SR"],"title_canon_sha256":"8bf613f967e5768f30f6a533638ab1b03e51ae6dead073397e4e4784f127b145","abstract_canon_sha256":"16a46ff5fe4c9099400d276552d0acf369ba5ac5e6afe379e2617b91c1781463"},"schema_version":"1.0"},"canonical_sha256":"02f16f1a2b888cb8bb62b8ddbf76247cf6afac50a6e7c59739d48029b00395db","source":{"kind":"arxiv","id":"1403.5672","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5672","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5672v2","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5672","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"pith_short_12","alias_value":"ALYW6GRLRCGL","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"ALYW6GRLRCGLRO3C","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"ALYW6GRL","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ALYW6GRLRCGLRO3CXDO365REPT","target":"record","payload":{"canonical_record":{"source":{"id":"1403.5672","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-03-22T15:13:32Z","cross_cats_sorted":["astro-ph.HE","astro-ph.SR"],"title_canon_sha256":"8bf613f967e5768f30f6a533638ab1b03e51ae6dead073397e4e4784f127b145","abstract_canon_sha256":"16a46ff5fe4c9099400d276552d0acf369ba5ac5e6afe379e2617b91c1781463"},"schema_version":"1.0"},"canonical_sha256":"02f16f1a2b888cb8bb62b8ddbf76247cf6afac50a6e7c59739d48029b00395db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:43:36.187676Z","signature_b64":"n02nA6nxlWz7/oEgMuKQPGp2wuP6xm6CjU07iNw9l0992lhqlGKbxY7eAJRJfH1d9c390nsu42eaFAJq1aAnDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02f16f1a2b888cb8bb62b8ddbf76247cf6afac50a6e7c59739d48029b00395db","last_reissued_at":"2026-05-18T02:43:36.187140Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:43:36.187140Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.5672","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":"2026-05-18T02:43:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"89aDccvXNRyCIfRHiSgbbVN+75yeumNji1LLOxT2fmAHNleiJXmEe2G+azk/oU4c3uMGwpg783nKxBDseCDKBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:09:56.855864Z"},"content_sha256":"f8cf16a4044ce04bf7b44bc49568b62b1320bdf53862f846ddbe3149db100245","schema_version":"1.0","event_id":"sha256:f8cf16a4044ce04bf7b44bc49568b62b1320bdf53862f846ddbe3149db100245"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ALYW6GRLRCGLRO3CXDO365REPT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining the Equation of State of Neutron Stars from Binary Mergers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","astro-ph.SR"],"primary_cat":"gr-qc","authors_text":"Kentaro Takami, Luca Baiotti, Luciano Rezzolla","submitted_at":"2014-03-22T15:13:32Z","abstract_excerpt":"Determining the equation of state of matter at nuclear density and hence the structure of neutron stars has been a riddle for decades. We show how the imminent detection of gravitational waves from merging neutron star binaries can be used to solve this riddle. Using a large number of accurate numerical-relativity simulations of binaries with nuclear equations of state, we find that the postmerger emission is characterized by two distinct and robust spectral features. While the high-frequency peak has already been associated with the oscillations of the hypermassive neutron star produced by th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5672","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":"2026-05-18T02:43:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mRuXt+oHU/YNx9aSg0kf0D5OhnC/w4zGeywENwoClQ3uRVem4KCFsQQQYX8qjf4qlIVJg9lN+muubkdJVvSnAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:09:56.856486Z"},"content_sha256":"caf7e119365831d0ee44ff8421c9fe5b51e0f301f058639dee06c934089d2dd8","schema_version":"1.0","event_id":"sha256:caf7e119365831d0ee44ff8421c9fe5b51e0f301f058639dee06c934089d2dd8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ALYW6GRLRCGLRO3CXDO365REPT/bundle.json","state_url":"https://pith.science/pith/ALYW6GRLRCGLRO3CXDO365REPT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ALYW6GRLRCGLRO3CXDO365REPT/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":"2026-06-04T20:09:56Z","links":{"resolver":"https://pith.science/pith/ALYW6GRLRCGLRO3CXDO365REPT","bundle":"https://pith.science/pith/ALYW6GRLRCGLRO3CXDO365REPT/bundle.json","state":"https://pith.science/pith/ALYW6GRLRCGLRO3CXDO365REPT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ALYW6GRLRCGLRO3CXDO365REPT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ALYW6GRLRCGLRO3CXDO365REPT","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":"16a46ff5fe4c9099400d276552d0acf369ba5ac5e6afe379e2617b91c1781463","cross_cats_sorted":["astro-ph.HE","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-03-22T15:13:32Z","title_canon_sha256":"8bf613f967e5768f30f6a533638ab1b03e51ae6dead073397e4e4784f127b145"},"schema_version":"1.0","source":{"id":"1403.5672","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5672","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5672v2","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5672","created_at":"2026-05-18T02:43:36Z"},{"alias_kind":"pith_short_12","alias_value":"ALYW6GRLRCGL","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"ALYW6GRLRCGLRO3C","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"ALYW6GRL","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:caf7e119365831d0ee44ff8421c9fe5b51e0f301f058639dee06c934089d2dd8","target":"graph","created_at":"2026-05-18T02:43:36Z","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":"Determining the equation of state of matter at nuclear density and hence the structure of neutron stars has been a riddle for decades. We show how the imminent detection of gravitational waves from merging neutron star binaries can be used to solve this riddle. Using a large number of accurate numerical-relativity simulations of binaries with nuclear equations of state, we find that the postmerger emission is characterized by two distinct and robust spectral features. While the high-frequency peak has already been associated with the oscillations of the hypermassive neutron star produced by th","authors_text":"Kentaro Takami, Luca Baiotti, Luciano Rezzolla","cross_cats":["astro-ph.HE","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-03-22T15:13:32Z","title":"Constraining the Equation of State of Neutron Stars from Binary Mergers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5672","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:f8cf16a4044ce04bf7b44bc49568b62b1320bdf53862f846ddbe3149db100245","target":"record","created_at":"2026-05-18T02:43:36Z","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":"16a46ff5fe4c9099400d276552d0acf369ba5ac5e6afe379e2617b91c1781463","cross_cats_sorted":["astro-ph.HE","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-03-22T15:13:32Z","title_canon_sha256":"8bf613f967e5768f30f6a533638ab1b03e51ae6dead073397e4e4784f127b145"},"schema_version":"1.0","source":{"id":"1403.5672","kind":"arxiv","version":2}},"canonical_sha256":"02f16f1a2b888cb8bb62b8ddbf76247cf6afac50a6e7c59739d48029b00395db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02f16f1a2b888cb8bb62b8ddbf76247cf6afac50a6e7c59739d48029b00395db","first_computed_at":"2026-05-18T02:43:36.187140Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:36.187140Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n02nA6nxlWz7/oEgMuKQPGp2wuP6xm6CjU07iNw9l0992lhqlGKbxY7eAJRJfH1d9c390nsu42eaFAJq1aAnDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:36.187676Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.5672","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f8cf16a4044ce04bf7b44bc49568b62b1320bdf53862f846ddbe3149db100245","sha256:caf7e119365831d0ee44ff8421c9fe5b51e0f301f058639dee06c934089d2dd8"],"state_sha256":"d16a321a98562f7b9e1279dd918cb0a311169ca83ed301b792c43344bdcf0e78"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nqw9if1cx6zebFm4VWULGT/8r9a88Bzuz4Z6sPH2IdZ+1KWRg2ZN4/A9L1WIYE3GbtYVy8uWYU7D3voizZPUBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T20:09:56.859501Z","bundle_sha256":"5c814978661ead61770626adb05142fcdc1b6bb270334a2bcdc423c3b4bfd713"}}