{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:6A3IBNIQPCZ4ID76GZL6KSDVZE","short_pith_number":"pith:6A3IBNIQ","canonical_record":{"source":{"id":"1806.07991","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-20T21:22:03Z","cross_cats_sorted":[],"title_canon_sha256":"008d0a72d6b3013d84562342b9571dd3a15ef884fedf4cd7555bcbd2508dd800","abstract_canon_sha256":"1e2a1e6e9f5d9655aee91ce3e5378925c0c868ab0370086458dee26964dac330"},"schema_version":"1.0"},"canonical_sha256":"f03680b51078b3c40ffe3657e54875c91ddc9822798e1227123472f816476834","source":{"kind":"arxiv","id":"1806.07991","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.07991","created_at":"2026-05-18T00:05:19Z"},{"alias_kind":"arxiv_version","alias_value":"1806.07991v3","created_at":"2026-05-18T00:05:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.07991","created_at":"2026-05-18T00:05:19Z"},{"alias_kind":"pith_short_12","alias_value":"6A3IBNIQPCZ4","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6A3IBNIQPCZ4ID76","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6A3IBNIQ","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:6A3IBNIQPCZ4ID76GZL6KSDVZE","target":"record","payload":{"canonical_record":{"source":{"id":"1806.07991","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-20T21:22:03Z","cross_cats_sorted":[],"title_canon_sha256":"008d0a72d6b3013d84562342b9571dd3a15ef884fedf4cd7555bcbd2508dd800","abstract_canon_sha256":"1e2a1e6e9f5d9655aee91ce3e5378925c0c868ab0370086458dee26964dac330"},"schema_version":"1.0"},"canonical_sha256":"f03680b51078b3c40ffe3657e54875c91ddc9822798e1227123472f816476834","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:19.132849Z","signature_b64":"C9Tv/4ipJ6pYOI/AyXKLA0TMJDnTCm4iovIZYP7qy5o2f0kiCR9FCHbZZujGGkDAzFi2LCUarNVq1sOzIYhoBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f03680b51078b3c40ffe3657e54875c91ddc9822798e1227123472f816476834","last_reissued_at":"2026-05-18T00:05:19.132150Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:19.132150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.07991","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:05:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5sUIymFpy0yp3WZ2+a+F32L9+95hjbbpMBrmCBYfkofqJAVxwxmJlx5ahh0GEXDYoWp9LX8Clt82UpVPrSvDAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T05:42:15.548163Z"},"content_sha256":"bd6b4a14691dfa630cb414e09901cf4fce8354b43ab3c38011489501be37b201","schema_version":"1.0","event_id":"sha256:bd6b4a14691dfa630cb414e09901cf4fce8354b43ab3c38011489501be37b201"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:6A3IBNIQPCZ4ID76GZL6KSDVZE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints on Axion-like Particles and Nucleon Pairing in Dense Matter from the Hot Neutron Star in HESS J1731-347","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Dany Page, Ermal Rrapaj, Mikhail V. Beznogov, Sanjay Reddy","submitted_at":"2018-06-20T21:22:03Z","abstract_excerpt":"If the thermal evolution of the hot young neutron star in the supernova remnant HESS J1731-347 is driven by neutrino emission, it provides a stringent constraint on the coupling of light (mass $\\ll 10$ keV) axion-like particles to neutrons. Using Markov-Chain Monte Carlo we find that for the values of axion-neutron coupling $g_{ann}^2 > 7.7 \\times 10^{-20}$ (90% c.l.) the axion cooling from the bremsstrahlung reaction $n+n\\rightarrow n+n +a$ is too rapid to account for the high observed surface temperature. This implies that the Pecci-Quinn scale or axion decay constant $f_a > 6.7 \\times 10^7$"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.07991","kind":"arxiv","version":3},"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":"2026-05-18T00:05:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1lbzVVLYH38MO4DDxCi+pylilM+OnxVE4zqLhmBSCvkemnVNVD5K51qwF+LcoUBF/b2G0W2gidLL4be9tGu/BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T05:42:15.548791Z"},"content_sha256":"644d08a41e5baa19ca01076af0488ceab755a5fd0dd7b270cb4e8d94f815e51c","schema_version":"1.0","event_id":"sha256:644d08a41e5baa19ca01076af0488ceab755a5fd0dd7b270cb4e8d94f815e51c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6A3IBNIQPCZ4ID76GZL6KSDVZE/bundle.json","state_url":"https://pith.science/pith/6A3IBNIQPCZ4ID76GZL6KSDVZE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6A3IBNIQPCZ4ID76GZL6KSDVZE/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":"2026-05-28T05:42:15Z","links":{"resolver":"https://pith.science/pith/6A3IBNIQPCZ4ID76GZL6KSDVZE","bundle":"https://pith.science/pith/6A3IBNIQPCZ4ID76GZL6KSDVZE/bundle.json","state":"https://pith.science/pith/6A3IBNIQPCZ4ID76GZL6KSDVZE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6A3IBNIQPCZ4ID76GZL6KSDVZE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6A3IBNIQPCZ4ID76GZL6KSDVZE","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":"1e2a1e6e9f5d9655aee91ce3e5378925c0c868ab0370086458dee26964dac330","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-20T21:22:03Z","title_canon_sha256":"008d0a72d6b3013d84562342b9571dd3a15ef884fedf4cd7555bcbd2508dd800"},"schema_version":"1.0","source":{"id":"1806.07991","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.07991","created_at":"2026-05-18T00:05:19Z"},{"alias_kind":"arxiv_version","alias_value":"1806.07991v3","created_at":"2026-05-18T00:05:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.07991","created_at":"2026-05-18T00:05:19Z"},{"alias_kind":"pith_short_12","alias_value":"6A3IBNIQPCZ4","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6A3IBNIQPCZ4ID76","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6A3IBNIQ","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:644d08a41e5baa19ca01076af0488ceab755a5fd0dd7b270cb4e8d94f815e51c","target":"graph","created_at":"2026-05-18T00:05:19Z","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":"If the thermal evolution of the hot young neutron star in the supernova remnant HESS J1731-347 is driven by neutrino emission, it provides a stringent constraint on the coupling of light (mass $\\ll 10$ keV) axion-like particles to neutrons. Using Markov-Chain Monte Carlo we find that for the values of axion-neutron coupling $g_{ann}^2 > 7.7 \\times 10^{-20}$ (90% c.l.) the axion cooling from the bremsstrahlung reaction $n+n\\rightarrow n+n +a$ is too rapid to account for the high observed surface temperature. This implies that the Pecci-Quinn scale or axion decay constant $f_a > 6.7 \\times 10^7$","authors_text":"Dany Page, Ermal Rrapaj, Mikhail V. Beznogov, Sanjay Reddy","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-20T21:22:03Z","title":"Constraints on Axion-like Particles and Nucleon Pairing in Dense Matter from the Hot Neutron Star in HESS J1731-347"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.07991","kind":"arxiv","version":3},"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:bd6b4a14691dfa630cb414e09901cf4fce8354b43ab3c38011489501be37b201","target":"record","created_at":"2026-05-18T00:05:19Z","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":"1e2a1e6e9f5d9655aee91ce3e5378925c0c868ab0370086458dee26964dac330","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-06-20T21:22:03Z","title_canon_sha256":"008d0a72d6b3013d84562342b9571dd3a15ef884fedf4cd7555bcbd2508dd800"},"schema_version":"1.0","source":{"id":"1806.07991","kind":"arxiv","version":3}},"canonical_sha256":"f03680b51078b3c40ffe3657e54875c91ddc9822798e1227123472f816476834","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f03680b51078b3c40ffe3657e54875c91ddc9822798e1227123472f816476834","first_computed_at":"2026-05-18T00:05:19.132150Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:19.132150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"C9Tv/4ipJ6pYOI/AyXKLA0TMJDnTCm4iovIZYP7qy5o2f0kiCR9FCHbZZujGGkDAzFi2LCUarNVq1sOzIYhoBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:19.132849Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.07991","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd6b4a14691dfa630cb414e09901cf4fce8354b43ab3c38011489501be37b201","sha256:644d08a41e5baa19ca01076af0488ceab755a5fd0dd7b270cb4e8d94f815e51c"],"state_sha256":"3e558343834b21013266a9b9fd434c25ec0bad3b1870a2bdb0ba7b1d941490b8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RtJpwDbX57Iaiq0C2swvCFQXLMCFeX27Kc/MEbnnn/V/gWEMJuq5qr6Ezni/qmqKgTWdS9Do5o/Am6XtxS9vAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T05:42:15.551972Z","bundle_sha256":"e1cff955e41e76f844924d47c2529491689f675e4adeb8d52db02063bbc98146"}}