{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:JYZGAMPGLTI5C3P2QR6KOXHW4I","short_pith_number":"pith:JYZGAMPG","canonical_record":{"source":{"id":"0907.4014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-07-23T09:26:37Z","cross_cats_sorted":[],"title_canon_sha256":"070a6fccf01f308496731ae4257a05fc1038c822c55aefb0676559da9bb333c8","abstract_canon_sha256":"44531726f2af46b22cac36a3b9184ab71029e2b0ff8d573b410b0aab45ed9ab4"},"schema_version":"1.0"},"canonical_sha256":"4e326031e65cd1d16dfa847ca75cf6e21708bd9c862eadd253e530e3eca072a5","source":{"kind":"arxiv","id":"0907.4014","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.4014","created_at":"2026-05-18T02:12:54Z"},{"alias_kind":"arxiv_version","alias_value":"0907.4014v2","created_at":"2026-05-18T02:12:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.4014","created_at":"2026-05-18T02:12:54Z"},{"alias_kind":"pith_short_12","alias_value":"JYZGAMPGLTI5","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"JYZGAMPGLTI5C3P2","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"JYZGAMPG","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:JYZGAMPGLTI5C3P2QR6KOXHW4I","target":"record","payload":{"canonical_record":{"source":{"id":"0907.4014","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-07-23T09:26:37Z","cross_cats_sorted":[],"title_canon_sha256":"070a6fccf01f308496731ae4257a05fc1038c822c55aefb0676559da9bb333c8","abstract_canon_sha256":"44531726f2af46b22cac36a3b9184ab71029e2b0ff8d573b410b0aab45ed9ab4"},"schema_version":"1.0"},"canonical_sha256":"4e326031e65cd1d16dfa847ca75cf6e21708bd9c862eadd253e530e3eca072a5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:54.379702Z","signature_b64":"e4SjdfhUc9wYbe5GHVlUhvyRnpSchzJBiYDKZkW0F+suyayGpytXVXqGyJFx8dXTkq0C6Y2fZw7DFmYxiFdsCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e326031e65cd1d16dfa847ca75cf6e21708bd9c862eadd253e530e3eca072a5","last_reissued_at":"2026-05-18T02:12:54.379219Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:54.379219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0907.4014","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":"2026-05-18T02:12:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ScBRNsE/3r723bCjcet8NzphmxevDzOr27df0D9RW81p8Y8OYlsfgklh4ASd0jfwb7ADSDFpIWOlfd7mWGWDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T14:13:08.103193Z"},"content_sha256":"f1f648679b3fea9018e937f4ee2a6707ca51020f5f571f64b084c345c0532dc6","schema_version":"1.0","event_id":"sha256:f1f648679b3fea9018e937f4ee2a6707ca51020f5f571f64b084c345c0532dc6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:JYZGAMPGLTI5C3P2QR6KOXHW4I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Very High Energy Gamma-ray Afterglow Emission of Nearby Gamma-ray Bursts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"B. Behera, D. M. Wei, P. H. Tam, R. R. Xue, S. J. Wagner, Y. Z. Fan","submitted_at":"2009-07-23T09:26:37Z","abstract_excerpt":"The synchrotron self-Compton (SSC) emission from Gamma-ray Burst (GRB) forward shock can extend to the very-high-energy (VHE; $E_\\gamma > $100 GeV) range. Such high energy photons are rare and are attenuated by the cosmic infrared background before reaching us. In this work, we discuss the prospect to detect these VHE photons using the current ground-based Cherenkov detectors. Our calculated results are consistent with the upper limits obtained with several Cherenkov detectors for GRB 030329, GRB 050509B, and GRB 060505 during the afterglow phase. For 5 bursts in our nearby GRB sample (except "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.4014","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":"2026-05-18T02:12:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DAIEwTK7KjGX0DoBKtL9nJa+D43cVTjFtb5ilOAUv1h5XCfwJxP5rFgpYYSWdWQgBjQrf/WJJO8cRhHqTStqAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T14:13:08.103683Z"},"content_sha256":"d9c040c1498677a9d50a106088e7cf18aa7bc73f055690156f85c7cf6bfd126e","schema_version":"1.0","event_id":"sha256:d9c040c1498677a9d50a106088e7cf18aa7bc73f055690156f85c7cf6bfd126e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JYZGAMPGLTI5C3P2QR6KOXHW4I/bundle.json","state_url":"https://pith.science/pith/JYZGAMPGLTI5C3P2QR6KOXHW4I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JYZGAMPGLTI5C3P2QR6KOXHW4I/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":"2026-08-17T14:13:08Z","links":{"resolver":"https://pith.science/pith/JYZGAMPGLTI5C3P2QR6KOXHW4I","bundle":"https://pith.science/pith/JYZGAMPGLTI5C3P2QR6KOXHW4I/bundle.json","state":"https://pith.science/pith/JYZGAMPGLTI5C3P2QR6KOXHW4I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JYZGAMPGLTI5C3P2QR6KOXHW4I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:JYZGAMPGLTI5C3P2QR6KOXHW4I","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":"44531726f2af46b22cac36a3b9184ab71029e2b0ff8d573b410b0aab45ed9ab4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-07-23T09:26:37Z","title_canon_sha256":"070a6fccf01f308496731ae4257a05fc1038c822c55aefb0676559da9bb333c8"},"schema_version":"1.0","source":{"id":"0907.4014","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.4014","created_at":"2026-05-18T02:12:54Z"},{"alias_kind":"arxiv_version","alias_value":"0907.4014v2","created_at":"2026-05-18T02:12:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.4014","created_at":"2026-05-18T02:12:54Z"},{"alias_kind":"pith_short_12","alias_value":"JYZGAMPGLTI5","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"JYZGAMPGLTI5C3P2","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"JYZGAMPG","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:d9c040c1498677a9d50a106088e7cf18aa7bc73f055690156f85c7cf6bfd126e","target":"graph","created_at":"2026-05-18T02:12:54Z","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":"The synchrotron self-Compton (SSC) emission from Gamma-ray Burst (GRB) forward shock can extend to the very-high-energy (VHE; $E_\\gamma > $100 GeV) range. Such high energy photons are rare and are attenuated by the cosmic infrared background before reaching us. In this work, we discuss the prospect to detect these VHE photons using the current ground-based Cherenkov detectors. Our calculated results are consistent with the upper limits obtained with several Cherenkov detectors for GRB 030329, GRB 050509B, and GRB 060505 during the afterglow phase. For 5 bursts in our nearby GRB sample (except ","authors_text":"B. Behera, D. M. Wei, P. H. Tam, R. R. Xue, S. J. Wagner, Y. Z. Fan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-07-23T09:26:37Z","title":"Very High Energy Gamma-ray Afterglow Emission of Nearby Gamma-ray Bursts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.4014","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:f1f648679b3fea9018e937f4ee2a6707ca51020f5f571f64b084c345c0532dc6","target":"record","created_at":"2026-05-18T02:12:54Z","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":"44531726f2af46b22cac36a3b9184ab71029e2b0ff8d573b410b0aab45ed9ab4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-07-23T09:26:37Z","title_canon_sha256":"070a6fccf01f308496731ae4257a05fc1038c822c55aefb0676559da9bb333c8"},"schema_version":"1.0","source":{"id":"0907.4014","kind":"arxiv","version":2}},"canonical_sha256":"4e326031e65cd1d16dfa847ca75cf6e21708bd9c862eadd253e530e3eca072a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e326031e65cd1d16dfa847ca75cf6e21708bd9c862eadd253e530e3eca072a5","first_computed_at":"2026-05-18T02:12:54.379219Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:54.379219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e4SjdfhUc9wYbe5GHVlUhvyRnpSchzJBiYDKZkW0F+suyayGpytXVXqGyJFx8dXTkq0C6Y2fZw7DFmYxiFdsCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:54.379702Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.4014","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f1f648679b3fea9018e937f4ee2a6707ca51020f5f571f64b084c345c0532dc6","sha256:d9c040c1498677a9d50a106088e7cf18aa7bc73f055690156f85c7cf6bfd126e"],"state_sha256":"adb1c1d81f2b076ed09e6b2e68b5de8be3c1e0530f4e2e4855a91e1b1b6dc9b6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B1f+tjePNaxCIQ125X+/lBVbtaPPpKTRwrV++naNE+1N0F9k4cLKl+R8EdJ59uNHhzAGOsjSTE4Gg6iE8cuIDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T14:13:08.110225Z","bundle_sha256":"b9041f9bec03c4188807d77b7b75f2f9df507e607282463ac58ed954d555a364"}}