{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2008:HR2ZODXKFTS4QXFTCZJVNKDNM5","short_pith_number":"pith:HR2ZODXK","schema_version":"1.0","canonical_sha256":"3c75970eea2ce5c85cb3165356a86d676e2cd7ff9a057020b11f41d3f75668e2","source":{"kind":"arxiv","id":"0812.0833","version":2},"attestation_state":"computed","paper":{"title":"A signature for the absence of event horizons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"G. Chapline, J. Barbieri","submitted_at":"2008-12-03T23:29:09Z","abstract_excerpt":"A sharp dip in the spectrum of gamma rays coming from compact objects below 70 MeV would be an unambiguous signal that compact astrophysical objects have a physical surface, and there is no event horizon. Observation of this effect would open a window for the empirical study of Planck scale physics"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0812.0833","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-12-03T23:29:09Z","cross_cats_sorted":[],"title_canon_sha256":"468625738a74f2162159d9af06e2ad33495a601563918dc6270e44c3e6e2f09e","abstract_canon_sha256":"26c617ca257d0db99bc09a5474615ccc3f50155ac73f013e9fa32a83dcb15ee4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:11.981552Z","signature_b64":"TqVB22GOq0HTLqjK203eAnpJCn1t+bXVJAVNZpt+9XlXSjkTy1kyCAf6i5tXRmi1hqirxbBzjGcuG5+mDHTrDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3c75970eea2ce5c85cb3165356a86d676e2cd7ff9a057020b11f41d3f75668e2","last_reissued_at":"2026-05-18T02:15:11.980832Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:11.980832Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A signature for the absence of event horizons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"G. Chapline, J. Barbieri","submitted_at":"2008-12-03T23:29:09Z","abstract_excerpt":"A sharp dip in the spectrum of gamma rays coming from compact objects below 70 MeV would be an unambiguous signal that compact astrophysical objects have a physical surface, and there is no event horizon. Observation of this effect would open a window for the empirical study of Planck scale physics"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0812.0833","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0812.0833","created_at":"2026-05-18T02:15:11.980950+00:00"},{"alias_kind":"arxiv_version","alias_value":"0812.0833v2","created_at":"2026-05-18T02:15:11.980950+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0812.0833","created_at":"2026-05-18T02:15:11.980950+00:00"},{"alias_kind":"pith_short_12","alias_value":"HR2ZODXKFTS4","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_16","alias_value":"HR2ZODXKFTS4QXFT","created_at":"2026-05-18T12:25:57.157939+00:00"},{"alias_kind":"pith_short_8","alias_value":"HR2ZODXK","created_at":"2026-05-18T12:25:57.157939+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5","json":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5.json","graph_json":"https://pith.science/api/pith-number/HR2ZODXKFTS4QXFTCZJVNKDNM5/graph.json","events_json":"https://pith.science/api/pith-number/HR2ZODXKFTS4QXFTCZJVNKDNM5/events.json","paper":"https://pith.science/paper/HR2ZODXK"},"agent_actions":{"view_html":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5","download_json":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5.json","view_paper":"https://pith.science/paper/HR2ZODXK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0812.0833&json=true","fetch_graph":"https://pith.science/api/pith-number/HR2ZODXKFTS4QXFTCZJVNKDNM5/graph.json","fetch_events":"https://pith.science/api/pith-number/HR2ZODXKFTS4QXFTCZJVNKDNM5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5/action/storage_attestation","attest_author":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5/action/author_attestation","sign_citation":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5/action/citation_signature","submit_replication":"https://pith.science/pith/HR2ZODXKFTS4QXFTCZJVNKDNM5/action/replication_record"}},"created_at":"2026-05-18T02:15:11.980950+00:00","updated_at":"2026-05-18T02:15:11.980950+00:00"}