{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:724TVBIKQKDVANH77GNXVQDLPR","short_pith_number":"pith:724TVBIK","canonical_record":{"source":{"id":"1803.01266","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-03T23:57:42Z","cross_cats_sorted":[],"title_canon_sha256":"67758d6bc95145818ad0ab48d97934663d503f4cd61e2703e535d100b366c8c5","abstract_canon_sha256":"bffb58efa3023bb46a0a6de037ac72c981b52fe6a4b7e1fde4aee6e407ebc3a1"},"schema_version":"1.0"},"canonical_sha256":"feb93a850a82875034fff99b7ac06b7c4c94321c15d2e6afd1610e6aabb7499d","source":{"kind":"arxiv","id":"1803.01266","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.01266","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"arxiv_version","alias_value":"1803.01266v1","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.01266","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"pith_short_12","alias_value":"724TVBIKQKDV","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"724TVBIKQKDVANH7","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"724TVBIK","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:724TVBIKQKDVANH77GNXVQDLPR","target":"record","payload":{"canonical_record":{"source":{"id":"1803.01266","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-03T23:57:42Z","cross_cats_sorted":[],"title_canon_sha256":"67758d6bc95145818ad0ab48d97934663d503f4cd61e2703e535d100b366c8c5","abstract_canon_sha256":"bffb58efa3023bb46a0a6de037ac72c981b52fe6a4b7e1fde4aee6e407ebc3a1"},"schema_version":"1.0"},"canonical_sha256":"feb93a850a82875034fff99b7ac06b7c4c94321c15d2e6afd1610e6aabb7499d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:38.514850Z","signature_b64":"+k2qj3jjwZGK7w+jiOiuGeRjO+8ovDzvwscOwDu8vMmowFLBeWS7pBzMKVqT+il1vAOewoHDSMlXYAJ+nhysDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"feb93a850a82875034fff99b7ac06b7c4c94321c15d2e6afd1610e6aabb7499d","last_reissued_at":"2026-05-18T00:17:38.514309Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:38.514309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.01266","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:17:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V3hkeZrLNoH1uFQKS1Bp4BCM03M8+xCRIQ9+3gIKTh5mslOM0quHnk02dMG/7FK/bGu7bkKyLYIwpTC3SqcXCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:55:37.266187Z"},"content_sha256":"847a9fe3d32d122eb2985f2b68f1a4f41f949e5616adb71ef79002be38f3d8f3","schema_version":"1.0","event_id":"sha256:847a9fe3d32d122eb2985f2b68f1a4f41f949e5616adb71ef79002be38f3d8f3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:724TVBIKQKDVANH77GNXVQDLPR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A strong limit on the very-high-energy emission from GRB 150323A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Archer, A. Falcone, A. Flinders, A. Furniss, Andrei Beloborodov, A. Petrashyk, A. Popkow, A. U. Abeysekara, A. Weinstein, A. Wilhelm, B. Zitzer (VERITAS Collaboration), C. A. Johnson, C. Rulten, D. A. Williams, D. Hanna, D. Kieda, E. Pueschel, E. Roache, F. Krennrich, G. H. Gillanders, G. H. Sembroski, G. Hughes, G. Maier, G. T. Richards, Indrek Vurm, I. Sadeh, J. Holder, J. P. Finley, J. Quinn, J. S. Perkins, J. Tyler, K. Ragan, K. Shahinyan, L. Fortson, M. Buchovecky, M. Errando, M. H\\\"utten, M. J. Lang, M. Kertzman, M. Krause, M. P. Connolly, M. Pohl, M. Santander, N. Kelley-Hoskins, N. Park, O. Hervet, O. M. Weiner, P. Kaaret, P. Kar, P. Moriarty, P. T. Reynolds, P. Wilcox, Q. Feng, R. A. Ong, R. Bird, R. Brose, R. Mukherjee, R. M. Wells, S. McArthur, S. O'Brien, S. P. Wakely, T. B. Humensky, T. T.Y. Lin, V. Bugaev, W. Benbow, W. Cui","submitted_at":"2018-03-03T23:57:42Z","abstract_excerpt":"On 2015 March 23, VERITAS responded to a $Swift$-BAT detection of a gamma-ray burst, with observations beginning 270 seconds after the onset of BAT emission, and only 135 seconds after the main BAT emission peak. No statistically significant signal is detected above 140 GeV. The VERITAS upper limit on the fluence in a 40 minute integration corresponds to about 1% of the prompt fluence. Our limit is particularly significant since the very-high-energy (VHE) observation started only $\\sim$2 minutes after the prompt emission peaked, and $Fermi$-LAT observations of numerous other bursts have reveal"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.01266","kind":"arxiv","version":1},"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":"2026-05-18T00:17:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LT2I17xxw1A2ZgULOYhT6rW1bz1r3K1D3BHQ50yRPoIfJPdsTcUqo7GcV9LaM/ee3F5jnS+M/XY5Vb4Hi+2rDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T21:55:37.266572Z"},"content_sha256":"150eebdfb8dd8c2f9cc90eec0048914867c553f11e3641649b6212608110512e","schema_version":"1.0","event_id":"sha256:150eebdfb8dd8c2f9cc90eec0048914867c553f11e3641649b6212608110512e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/724TVBIKQKDVANH77GNXVQDLPR/bundle.json","state_url":"https://pith.science/pith/724TVBIKQKDVANH77GNXVQDLPR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/724TVBIKQKDVANH77GNXVQDLPR/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":"2026-06-01T21:55:37Z","links":{"resolver":"https://pith.science/pith/724TVBIKQKDVANH77GNXVQDLPR","bundle":"https://pith.science/pith/724TVBIKQKDVANH77GNXVQDLPR/bundle.json","state":"https://pith.science/pith/724TVBIKQKDVANH77GNXVQDLPR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/724TVBIKQKDVANH77GNXVQDLPR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:724TVBIKQKDVANH77GNXVQDLPR","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":"bffb58efa3023bb46a0a6de037ac72c981b52fe6a4b7e1fde4aee6e407ebc3a1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-03T23:57:42Z","title_canon_sha256":"67758d6bc95145818ad0ab48d97934663d503f4cd61e2703e535d100b366c8c5"},"schema_version":"1.0","source":{"id":"1803.01266","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.01266","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"arxiv_version","alias_value":"1803.01266v1","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.01266","created_at":"2026-05-18T00:17:38Z"},{"alias_kind":"pith_short_12","alias_value":"724TVBIKQKDV","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"724TVBIKQKDVANH7","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"724TVBIK","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:150eebdfb8dd8c2f9cc90eec0048914867c553f11e3641649b6212608110512e","target":"graph","created_at":"2026-05-18T00:17:38Z","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":"On 2015 March 23, VERITAS responded to a $Swift$-BAT detection of a gamma-ray burst, with observations beginning 270 seconds after the onset of BAT emission, and only 135 seconds after the main BAT emission peak. No statistically significant signal is detected above 140 GeV. The VERITAS upper limit on the fluence in a 40 minute integration corresponds to about 1% of the prompt fluence. Our limit is particularly significant since the very-high-energy (VHE) observation started only $\\sim$2 minutes after the prompt emission peaked, and $Fermi$-LAT observations of numerous other bursts have reveal","authors_text":"A. Archer, A. Falcone, A. Flinders, A. Furniss, Andrei Beloborodov, A. Petrashyk, A. Popkow, A. U. Abeysekara, A. Weinstein, A. Wilhelm, B. Zitzer (VERITAS Collaboration), C. A. Johnson, C. Rulten, D. A. Williams, D. Hanna, D. Kieda, E. Pueschel, E. Roache, F. Krennrich, G. H. Gillanders, G. H. Sembroski, G. Hughes, G. Maier, G. T. Richards, Indrek Vurm, I. Sadeh, J. Holder, J. P. Finley, J. Quinn, J. S. Perkins, J. Tyler, K. Ragan, K. Shahinyan, L. Fortson, M. Buchovecky, M. Errando, M. H\\\"utten, M. J. Lang, M. Kertzman, M. Krause, M. P. Connolly, M. Pohl, M. Santander, N. Kelley-Hoskins, N. Park, O. Hervet, O. M. Weiner, P. Kaaret, P. Kar, P. Moriarty, P. T. Reynolds, P. Wilcox, Q. Feng, R. A. Ong, R. Bird, R. Brose, R. Mukherjee, R. M. Wells, S. McArthur, S. O'Brien, S. P. Wakely, T. B. Humensky, T. T.Y. Lin, V. Bugaev, W. Benbow, W. Cui","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-03T23:57:42Z","title":"A strong limit on the very-high-energy emission from GRB 150323A"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.01266","kind":"arxiv","version":1},"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":"sha256:847a9fe3d32d122eb2985f2b68f1a4f41f949e5616adb71ef79002be38f3d8f3","target":"record","created_at":"2026-05-18T00:17:38Z","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":"bffb58efa3023bb46a0a6de037ac72c981b52fe6a4b7e1fde4aee6e407ebc3a1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-03T23:57:42Z","title_canon_sha256":"67758d6bc95145818ad0ab48d97934663d503f4cd61e2703e535d100b366c8c5"},"schema_version":"1.0","source":{"id":"1803.01266","kind":"arxiv","version":1}},"canonical_sha256":"feb93a850a82875034fff99b7ac06b7c4c94321c15d2e6afd1610e6aabb7499d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"feb93a850a82875034fff99b7ac06b7c4c94321c15d2e6afd1610e6aabb7499d","first_computed_at":"2026-05-18T00:17:38.514309Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:38.514309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+k2qj3jjwZGK7w+jiOiuGeRjO+8ovDzvwscOwDu8vMmowFLBeWS7pBzMKVqT+il1vAOewoHDSMlXYAJ+nhysDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:38.514850Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.01266","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:847a9fe3d32d122eb2985f2b68f1a4f41f949e5616adb71ef79002be38f3d8f3","sha256:150eebdfb8dd8c2f9cc90eec0048914867c553f11e3641649b6212608110512e"],"state_sha256":"94dce97d0cf5e71319c86a1703aa5c7dd20fb5e8c3f2d84babf67182142498fa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TQQhN9JSyizjrnSMuELHoFxds9V2LEzWzf7OKIwJYM6Kzm3okl6jr8E4t9hniKuS3ot60RkPc3PXrnmPeqQTDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T21:55:37.268478Z","bundle_sha256":"163d08cbb195e353cd569f683e1bd45dfc59ba76de01e21aa4b0da30b62ecf6d"}}