{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:F33SIXKT2UGKSQNJI3WSG35MHK","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":"c4dd0c596a09414668bbcbd2b2ee12de48af2f8f166bdc2f529beb61c1107392","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-05-30T02:59:25Z","title_canon_sha256":"72444bc1cfef037a937b1341ae462e21ea28a217c0dffb5c574bd24d064a610a"},"schema_version":"1.0","source":{"id":"1905.12836","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.12836","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"arxiv_version","alias_value":"1905.12836v1","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.12836","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"pith_short_12","alias_value":"F33SIXKT2UGK","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"F33SIXKT2UGKSQNJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"F33SIXKT","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:643d0a6bdda05a3ae2858aff777b1fe105c81f48266f5fd0d8cd5db7661877f4","target":"graph","created_at":"2026-05-17T23:42:58Z","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":"In Einstein's general relativity, gravity is mediated by a massless spin-2 metric field, and its extension to include a mass for the graviton has profound implication for gravitation and cosmology. In 2002, Finn and Sutton used the gravitational-wave (GW) back-reaction in binary pulsars, and provided the first bound on the mass of graviton. Here we provide an improved analysis using 9 well-timed binary pulsars with a phenomenological treatment. First, individual mass bounds from each pulsar are obtained in the frequentist approach with the help of an ordering principle. The best upper limit on","authors_text":"Bo-Qiang Ma, Lijing Shao, Xueli Miao","cross_cats":["astro-ph.HE","gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-05-30T02:59:25Z","title":"Bounding the mass of graviton in a dynamic regime with binary pulsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.12836","kind":"arxiv","version":1},"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:a1ae8f90dbcf96a82ce4ee72e4f66bba217cedfa9b8840660ff0308ab927466c","target":"record","created_at":"2026-05-17T23:42:58Z","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":"c4dd0c596a09414668bbcbd2b2ee12de48af2f8f166bdc2f529beb61c1107392","cross_cats_sorted":["astro-ph.HE","gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-05-30T02:59:25Z","title_canon_sha256":"72444bc1cfef037a937b1341ae462e21ea28a217c0dffb5c574bd24d064a610a"},"schema_version":"1.0","source":{"id":"1905.12836","kind":"arxiv","version":1}},"canonical_sha256":"2ef7245d53d50ca941a946ed236fac3a9e1e9ed7c4803143de12bd04060eec2a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2ef7245d53d50ca941a946ed236fac3a9e1e9ed7c4803143de12bd04060eec2a","first_computed_at":"2026-05-17T23:42:58.116250Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:58.116250Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oEADpFAH/Wcgn+4v1KQFxozVnmSvMgx2onkwTe9d5PkeX1efrV39VC7CDquHJ2djaZWH/JWNtRbqwaUy9WnpDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:58.116915Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.12836","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1ae8f90dbcf96a82ce4ee72e4f66bba217cedfa9b8840660ff0308ab927466c","sha256:643d0a6bdda05a3ae2858aff777b1fe105c81f48266f5fd0d8cd5db7661877f4"],"state_sha256":"9bc97080e54fa4cd020e518c0f8f9bba78717ec0d4056ca5a6b730d77ffd5a2b"}