{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:APWP4UTZO4VP2NO4XGF7EMKUDT","short_pith_number":"pith:APWP4UTZ","canonical_record":{"source":{"id":"0908.1908","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-13T14:43:03Z","cross_cats_sorted":[],"title_canon_sha256":"b6974c0fff22d5dc60ee2cf08d3e7d09ad3a2b318c4286c9d84b9f732fae72e4","abstract_canon_sha256":"0285763ec2b4b93c22247fda86a87aa05022b1b3656ebb0c5d93a106b18c160d"},"schema_version":"1.0"},"canonical_sha256":"03ecfe5279772afd35dcb98bf231541cf922c62d9d830b8824f98571494c5f91","source":{"kind":"arxiv","id":"0908.1908","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.1908","created_at":"2026-05-18T02:12:34Z"},{"alias_kind":"arxiv_version","alias_value":"0908.1908v2","created_at":"2026-05-18T02:12:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.1908","created_at":"2026-05-18T02:12:34Z"},{"alias_kind":"pith_short_12","alias_value":"APWP4UTZO4VP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"APWP4UTZO4VP2NO4","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"APWP4UTZ","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:APWP4UTZO4VP2NO4XGF7EMKUDT","target":"record","payload":{"canonical_record":{"source":{"id":"0908.1908","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-13T14:43:03Z","cross_cats_sorted":[],"title_canon_sha256":"b6974c0fff22d5dc60ee2cf08d3e7d09ad3a2b318c4286c9d84b9f732fae72e4","abstract_canon_sha256":"0285763ec2b4b93c22247fda86a87aa05022b1b3656ebb0c5d93a106b18c160d"},"schema_version":"1.0"},"canonical_sha256":"03ecfe5279772afd35dcb98bf231541cf922c62d9d830b8824f98571494c5f91","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:34.564774Z","signature_b64":"QfKDaogx+w5UZK7ARhiF5zCqztk5iuysqDF9zmGUr/j7UGNRW0BG9EagPQPHdqylMp/kg20O0Hd+fiH6cFksDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03ecfe5279772afd35dcb98bf231541cf922c62d9d830b8824f98571494c5f91","last_reissued_at":"2026-05-18T02:12:34.564144Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:34.564144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0908.1908","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":"2026-05-18T02:12:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DpopU/jqylSo0LBztykaQwJAUMKOOdmNKFosf5Y0UtOMNcU4Mo+qNtnsoLunDEiNQmzgm8BTTAtfmKab5kUFBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T16:22:15.480860Z"},"content_sha256":"f42534591aded23a5b81f842bc2c2d504b99723889819c95a43f27a6c67b7650","schema_version":"1.0","event_id":"sha256:f42534591aded23a5b81f842bc2c2d504b99723889819c95a43f27a6c67b7650"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:APWP4UTZO4VP2NO4XGF7EMKUDT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Agile Detection of Delayed Gamma-Ray Emission from the Short Gamma-Ray Burst GRB 090510","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Argan, A. Bulgarelli, A. Ferrari, A. Giuliani, A. Morselli, A. Pellizzoni, A. Rappoldi, A. Rubini, A. Trois, A. W. Chen, A. Zambra, C. Labanti, C. Pittori, D. Zanello, E. Costa, E. Del Monte, E. Moretti, E. Scalise, E. Striani, E. Vallazza, F. D'Ammando, F. Fuschino, F. Gianotti, F. Lazzarotto, F. Longo, F. Perotti, F. Verrecchia, G. Barbiellini, G. De Paris, G. Di Cocco, G. Piano, G. Pucella, G. Vianello, I. Donnarumma, I. Lapshov, L.A. Antonelli, L. Pacciani, L. Salotti, M. Feroci, M. Fiorini, M. Galli, M. Marisaldi, M. Pilia, M. Prest, M. Rapisarda, M. Tavani, M. Trifoglio, P. Caraveo, P. Giommi, P. Lipari, P. Picozza, P. Santolamazza, P. Soffitta, P. W. Cattaneo, S. Colafrancesco, S. Cutini, S. Mereghetti, S. Sabatini, S. Vercellone, T. Contessi, V. Vittorini, Y. Evangelista","submitted_at":"2009-08-13T14:43:03Z","abstract_excerpt":"Short gamma-ray bursts (GRBs), typically lasting less than 2 s, are a special class of GRBs of great interest. We report the detection by the AGILE satellite of the short GRB 090510 which shows two clearly distinct emission phases: a prompt phase lasting ~ 200 msec and a second phase lasting tens of seconds. The prompt phase is relatively intense in the 0.3-10 MeV range with a spectrum characterized by a large peak/cutoff energy near 3 MeV, in this phase, no significant high-energy gamma-ray emission is detected. At the end of the prompt phase, intense gamma-ray emission above 30 MeV is detect"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.1908","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":"2026-05-18T02:12:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JbvFy4/xuPErYPr6n/d6+2X4KTX/vFEoDnSX2rUYAFF5p+qHMiFS5MRMbYU/pDMDjom28rBCKZBrqG9AeQSKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T16:22:15.481249Z"},"content_sha256":"5d9afc8844cf5849bdc3efc0c14b72c6ce59b15ec72017d69e7aa80e695732d6","schema_version":"1.0","event_id":"sha256:5d9afc8844cf5849bdc3efc0c14b72c6ce59b15ec72017d69e7aa80e695732d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/APWP4UTZO4VP2NO4XGF7EMKUDT/bundle.json","state_url":"https://pith.science/pith/APWP4UTZO4VP2NO4XGF7EMKUDT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/APWP4UTZO4VP2NO4XGF7EMKUDT/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":"2026-05-20T16:22:15Z","links":{"resolver":"https://pith.science/pith/APWP4UTZO4VP2NO4XGF7EMKUDT","bundle":"https://pith.science/pith/APWP4UTZO4VP2NO4XGF7EMKUDT/bundle.json","state":"https://pith.science/pith/APWP4UTZO4VP2NO4XGF7EMKUDT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/APWP4UTZO4VP2NO4XGF7EMKUDT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:APWP4UTZO4VP2NO4XGF7EMKUDT","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":"0285763ec2b4b93c22247fda86a87aa05022b1b3656ebb0c5d93a106b18c160d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-13T14:43:03Z","title_canon_sha256":"b6974c0fff22d5dc60ee2cf08d3e7d09ad3a2b318c4286c9d84b9f732fae72e4"},"schema_version":"1.0","source":{"id":"0908.1908","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.1908","created_at":"2026-05-18T02:12:34Z"},{"alias_kind":"arxiv_version","alias_value":"0908.1908v2","created_at":"2026-05-18T02:12:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.1908","created_at":"2026-05-18T02:12:34Z"},{"alias_kind":"pith_short_12","alias_value":"APWP4UTZO4VP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"APWP4UTZO4VP2NO4","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"APWP4UTZ","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:5d9afc8844cf5849bdc3efc0c14b72c6ce59b15ec72017d69e7aa80e695732d6","target":"graph","created_at":"2026-05-18T02:12:34Z","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":"Short gamma-ray bursts (GRBs), typically lasting less than 2 s, are a special class of GRBs of great interest. We report the detection by the AGILE satellite of the short GRB 090510 which shows two clearly distinct emission phases: a prompt phase lasting ~ 200 msec and a second phase lasting tens of seconds. The prompt phase is relatively intense in the 0.3-10 MeV range with a spectrum characterized by a large peak/cutoff energy near 3 MeV, in this phase, no significant high-energy gamma-ray emission is detected. At the end of the prompt phase, intense gamma-ray emission above 30 MeV is detect","authors_text":"A. Argan, A. Bulgarelli, A. Ferrari, A. Giuliani, A. Morselli, A. Pellizzoni, A. Rappoldi, A. Rubini, A. Trois, A. W. Chen, A. Zambra, C. Labanti, C. Pittori, D. Zanello, E. Costa, E. Del Monte, E. Moretti, E. Scalise, E. Striani, E. Vallazza, F. D'Ammando, F. Fuschino, F. Gianotti, F. Lazzarotto, F. Longo, F. Perotti, F. Verrecchia, G. Barbiellini, G. De Paris, G. Di Cocco, G. Piano, G. Pucella, G. Vianello, I. Donnarumma, I. Lapshov, L.A. Antonelli, L. Pacciani, L. Salotti, M. Feroci, M. Fiorini, M. Galli, M. Marisaldi, M. Pilia, M. Prest, M. Rapisarda, M. Tavani, M. Trifoglio, P. Caraveo, P. Giommi, P. Lipari, P. Picozza, P. Santolamazza, P. Soffitta, P. W. Cattaneo, S. Colafrancesco, S. Cutini, S. Mereghetti, S. Sabatini, S. Vercellone, T. Contessi, V. Vittorini, Y. Evangelista","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-13T14:43:03Z","title":"Agile Detection of Delayed Gamma-Ray Emission from the Short Gamma-Ray Burst GRB 090510"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.1908","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:f42534591aded23a5b81f842bc2c2d504b99723889819c95a43f27a6c67b7650","target":"record","created_at":"2026-05-18T02:12:34Z","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":"0285763ec2b4b93c22247fda86a87aa05022b1b3656ebb0c5d93a106b18c160d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-13T14:43:03Z","title_canon_sha256":"b6974c0fff22d5dc60ee2cf08d3e7d09ad3a2b318c4286c9d84b9f732fae72e4"},"schema_version":"1.0","source":{"id":"0908.1908","kind":"arxiv","version":2}},"canonical_sha256":"03ecfe5279772afd35dcb98bf231541cf922c62d9d830b8824f98571494c5f91","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03ecfe5279772afd35dcb98bf231541cf922c62d9d830b8824f98571494c5f91","first_computed_at":"2026-05-18T02:12:34.564144Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:34.564144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QfKDaogx+w5UZK7ARhiF5zCqztk5iuysqDF9zmGUr/j7UGNRW0BG9EagPQPHdqylMp/kg20O0Hd+fiH6cFksDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:34.564774Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.1908","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f42534591aded23a5b81f842bc2c2d504b99723889819c95a43f27a6c67b7650","sha256:5d9afc8844cf5849bdc3efc0c14b72c6ce59b15ec72017d69e7aa80e695732d6"],"state_sha256":"cf873d21efea8bbbfe7723c2bb19ee24e43f1d8520c02513b3d47824c707e519"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hFOrllC3/fUqUI7l6/mdLuCv6K4dX8bZ1rtc+dWWb05Yf1L6tAQ0BOndViJ1NfF0e5RfzXjfVV1+KADqnrWzCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T16:22:15.483325Z","bundle_sha256":"b8b60f53af9a53018b3abfa5153afdc847dd289525d497ce449c2570010c8504"}}