{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:MT5SMNWQUG54LPNAO7PMP4TN2A","short_pith_number":"pith:MT5SMNWQ","canonical_record":{"source":{"id":"1212.2392","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-12-11T11:51:51Z","cross_cats_sorted":[],"title_canon_sha256":"22775c1a325971c8ea31586bd6fee3aba63536d9159e8a5f11a0ca1d2fb11150","abstract_canon_sha256":"d0783012b61fb1781d04641bcd2065452ab5e20aa25855ee9f731159d0b1bed2"},"schema_version":"1.0"},"canonical_sha256":"64fb2636d0a1bbc5bda077dec7f26dd02ae0aa75cd34496c7cd9705589fe55f6","source":{"kind":"arxiv","id":"1212.2392","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.2392","created_at":"2026-05-18T03:31:44Z"},{"alias_kind":"arxiv_version","alias_value":"1212.2392v2","created_at":"2026-05-18T03:31:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.2392","created_at":"2026-05-18T03:31:44Z"},{"alias_kind":"pith_short_12","alias_value":"MT5SMNWQUG54","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MT5SMNWQUG54LPNA","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MT5SMNWQ","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:MT5SMNWQUG54LPNAO7PMP4TN2A","target":"record","payload":{"canonical_record":{"source":{"id":"1212.2392","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-12-11T11:51:51Z","cross_cats_sorted":[],"title_canon_sha256":"22775c1a325971c8ea31586bd6fee3aba63536d9159e8a5f11a0ca1d2fb11150","abstract_canon_sha256":"d0783012b61fb1781d04641bcd2065452ab5e20aa25855ee9f731159d0b1bed2"},"schema_version":"1.0"},"canonical_sha256":"64fb2636d0a1bbc5bda077dec7f26dd02ae0aa75cd34496c7cd9705589fe55f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:44.628616Z","signature_b64":"MtIaF8GbThnbDRSyKOQ+S7A2c75Awnw0HimEyz3Cj/NSez0D4Gzl8KP63ltQdKF4Gr1BnFNKKCmkvGrWpHf5DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64fb2636d0a1bbc5bda077dec7f26dd02ae0aa75cd34496c7cd9705589fe55f6","last_reissued_at":"2026-05-18T03:31:44.627750Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:44.627750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.2392","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":"2026-05-18T03:31:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SCZ6vtV25C4zuMEcEg7IRswTL3d/jk0cX12jJn21nGLciHexrM/0Xd9vSXRevkxX/yN/IAFiq9nLffJBQYqwDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T01:06:37.469908Z"},"content_sha256":"16c2e3539f0f057114d34c1d95637ca044101f61f00635eb78bc6197e8cdad19","schema_version":"1.0","event_id":"sha256:16c2e3539f0f057114d34c1d95637ca044101f61f00635eb78bc6197e8cdad19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:MT5SMNWQUG54LPNAO7PMP4TN2A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The ultra-long Gamma-Ray Burst 111209A: the collapse of a blue supergiant?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"(10) University of Western Australia, (11) IAPS/INAF), 2), (2) Observatory of Rome/INAF, (3) University of Toulouse, 4, (4) Observatoire Midi Pyr\\'en\\'ee, 5, 5), (5) IRAP/CNRS, (6) University of Aix-Marseille, 7), (7) LAM/CNRS, (8) Artemis/CNRS, 9), 9) L. Piro (11) ((1) ASDC/INAF, (9) Observatory of Haute Provence/CNRS, A. Klotz (3, B. Gendre (1, D. M. Coward (10), E. Howell (10), G. Stratta (2), J.L. Atteia (3, M. Bo\\\"er (8, S. Basa (6, S. Cutini (1, V. D'Elia (1","submitted_at":"2012-12-11T11:51:51Z","abstract_excerpt":"We present optical, X-ray and gamma-ray observations of GRB 111209A, at a redshift of z = 0.677. We show that this event was active in its prompt phase for about 25000 seconds, making it the longest burst ever observed. This rare event could have been detected up to z ~ 1.4. Compared to other long GRBs, GRB 111209A is a clear outlier in the energy-fluence and duration plane. The high-energy prompt emission shows no sign of a strong black body component, as expected if the event was caused by a tidal disruption event or a supernova shock breakout. Given the extreme longevity of this event, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.2392","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":"2026-05-18T03:31:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xTVzptsXxbHOV53DiCF0ru/jJ8msv493nNTJia22PKhyxHQXVZwS99k2YdOIZ7gqM1HgysnkkcCSVGfWmBE5AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T01:06:37.470606Z"},"content_sha256":"6fe26fc376e87e68761059774281d173591867427ebc734d6bc16024cf10509a","schema_version":"1.0","event_id":"sha256:6fe26fc376e87e68761059774281d173591867427ebc734d6bc16024cf10509a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MT5SMNWQUG54LPNAO7PMP4TN2A/bundle.json","state_url":"https://pith.science/pith/MT5SMNWQUG54LPNAO7PMP4TN2A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MT5SMNWQUG54LPNAO7PMP4TN2A/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":"2026-05-19T01:06:37Z","links":{"resolver":"https://pith.science/pith/MT5SMNWQUG54LPNAO7PMP4TN2A","bundle":"https://pith.science/pith/MT5SMNWQUG54LPNAO7PMP4TN2A/bundle.json","state":"https://pith.science/pith/MT5SMNWQUG54LPNAO7PMP4TN2A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MT5SMNWQUG54LPNAO7PMP4TN2A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:MT5SMNWQUG54LPNAO7PMP4TN2A","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":"d0783012b61fb1781d04641bcd2065452ab5e20aa25855ee9f731159d0b1bed2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-12-11T11:51:51Z","title_canon_sha256":"22775c1a325971c8ea31586bd6fee3aba63536d9159e8a5f11a0ca1d2fb11150"},"schema_version":"1.0","source":{"id":"1212.2392","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.2392","created_at":"2026-05-18T03:31:44Z"},{"alias_kind":"arxiv_version","alias_value":"1212.2392v2","created_at":"2026-05-18T03:31:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.2392","created_at":"2026-05-18T03:31:44Z"},{"alias_kind":"pith_short_12","alias_value":"MT5SMNWQUG54","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MT5SMNWQUG54LPNA","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MT5SMNWQ","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:6fe26fc376e87e68761059774281d173591867427ebc734d6bc16024cf10509a","target":"graph","created_at":"2026-05-18T03:31:44Z","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":"We present optical, X-ray and gamma-ray observations of GRB 111209A, at a redshift of z = 0.677. We show that this event was active in its prompt phase for about 25000 seconds, making it the longest burst ever observed. This rare event could have been detected up to z ~ 1.4. Compared to other long GRBs, GRB 111209A is a clear outlier in the energy-fluence and duration plane. The high-energy prompt emission shows no sign of a strong black body component, as expected if the event was caused by a tidal disruption event or a supernova shock breakout. Given the extreme longevity of this event, and ","authors_text":"(10) University of Western Australia, (11) IAPS/INAF), 2), (2) Observatory of Rome/INAF, (3) University of Toulouse, 4, (4) Observatoire Midi Pyr\\'en\\'ee, 5, 5), (5) IRAP/CNRS, (6) University of Aix-Marseille, 7), (7) LAM/CNRS, (8) Artemis/CNRS, 9), 9) L. Piro (11) ((1) ASDC/INAF, (9) Observatory of Haute Provence/CNRS, A. Klotz (3, B. Gendre (1, D. M. Coward (10), E. Howell (10), G. Stratta (2), J.L. Atteia (3, M. Bo\\\"er (8, S. Basa (6, S. Cutini (1, V. D'Elia (1","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-12-11T11:51:51Z","title":"The ultra-long Gamma-Ray Burst 111209A: the collapse of a blue supergiant?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.2392","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":"sha256:16c2e3539f0f057114d34c1d95637ca044101f61f00635eb78bc6197e8cdad19","target":"record","created_at":"2026-05-18T03:31:44Z","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":"d0783012b61fb1781d04641bcd2065452ab5e20aa25855ee9f731159d0b1bed2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-12-11T11:51:51Z","title_canon_sha256":"22775c1a325971c8ea31586bd6fee3aba63536d9159e8a5f11a0ca1d2fb11150"},"schema_version":"1.0","source":{"id":"1212.2392","kind":"arxiv","version":2}},"canonical_sha256":"64fb2636d0a1bbc5bda077dec7f26dd02ae0aa75cd34496c7cd9705589fe55f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64fb2636d0a1bbc5bda077dec7f26dd02ae0aa75cd34496c7cd9705589fe55f6","first_computed_at":"2026-05-18T03:31:44.627750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:31:44.627750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MtIaF8GbThnbDRSyKOQ+S7A2c75Awnw0HimEyz3Cj/NSez0D4Gzl8KP63ltQdKF4Gr1BnFNKKCmkvGrWpHf5DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:31:44.628616Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.2392","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16c2e3539f0f057114d34c1d95637ca044101f61f00635eb78bc6197e8cdad19","sha256:6fe26fc376e87e68761059774281d173591867427ebc734d6bc16024cf10509a"],"state_sha256":"4fc56c2df404cfaea2cc7d9fcf46d14fff98b4d8abc6c7661a7313dac1c013ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iF4vPa3rOQc0cwIcjKWwLkSbzxY0+7nHp1JoHHOjH1p/m4ABQcb/QYi/EaaPS5zUo+EHR5IKv8Jw03ir611CBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T01:06:37.472701Z","bundle_sha256":"de839ce5d332e1f4e4b7bf7eb8683ac8fab2cf2f59aef9aab0836e1ecee4892c"}}