{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BKU5EQHCZR6BQXHD43SJGDUTM2","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":"a254b7892e3d7a49ece191a920bc76a9e9c01009ce1609462cd34408e85b2d28","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-17T23:13:00Z","title_canon_sha256":"7c82f74f049c1a94496d3b9590714a56ff3031fc642a6112bfa1a3e392a35c28"},"schema_version":"1.0","source":{"id":"1712.06205","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.06205","created_at":"2026-05-18T00:21:45Z"},{"alias_kind":"arxiv_version","alias_value":"1712.06205v2","created_at":"2026-05-18T00:21:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.06205","created_at":"2026-05-18T00:21:45Z"},{"alias_kind":"pith_short_12","alias_value":"BKU5EQHCZR6B","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BKU5EQHCZR6BQXHD","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BKU5EQHC","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:585dd956704e2607653c11c85eaf91333ab6f43ee103479c106efa9832c165b7","target":"graph","created_at":"2026-05-18T00:21:45Z","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":"A strong bound on the properties of axion-like particles (ALPs) has been set by assuming that ALPs are emitted by the protoneutron star just before the core-bounce in Galactic core-collapse supernovae, and that these ALPs subsequently convert to $\\gamma$-ray photons which ought to be detected by a $\\gamma$-ray mission. This argument has been applied to supernova 1987A to derive the bound on the ALP-photon coupling $g_{a \\gamma \\gamma} \\lesssim 5.3 \\cdot 10^{- 12} \\, {\\rm GeV}^{- 1}$ for an ALP mass $m_a \\lesssim 4.4 \\cdot 10^{- 10} \\, {\\rm eV}$, and can be applied to the next Galactic supernov","authors_text":"Giorgio Galanti, Ignazio Bombaci, Marco Roncadelli","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-17T23:13:00Z","title":"No axion-like particles from core-collapse supernovae?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.06205","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":"sha256:518c8852ebad1a97da11ef2e593cc265ecc613bf643a3fb63380e3578e8d74e9","target":"record","created_at":"2026-05-18T00:21:45Z","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":"a254b7892e3d7a49ece191a920bc76a9e9c01009ce1609462cd34408e85b2d28","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-12-17T23:13:00Z","title_canon_sha256":"7c82f74f049c1a94496d3b9590714a56ff3031fc642a6112bfa1a3e392a35c28"},"schema_version":"1.0","source":{"id":"1712.06205","kind":"arxiv","version":2}},"canonical_sha256":"0aa9d240e2cc7c185ce3e6e4930e9366b9f354156f248eeecce9a80e67228dcf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0aa9d240e2cc7c185ce3e6e4930e9366b9f354156f248eeecce9a80e67228dcf","first_computed_at":"2026-05-18T00:21:45.816771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:45.816771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fDS0HIuNJU5EQiRmKpbDLuZpZYqJN1zxO0CTv1G+/S/7T/i3AAowip88z3gvVJUWPdlfh/gupOV5/7eczWnKAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:45.817664Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.06205","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:518c8852ebad1a97da11ef2e593cc265ecc613bf643a3fb63380e3578e8d74e9","sha256:585dd956704e2607653c11c85eaf91333ab6f43ee103479c106efa9832c165b7"],"state_sha256":"710d50b426132024d298aa50acd07fde22fb7d470972af516ec49c81180ab4f3"}