{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:56E7UWI2VKIPJ5AOCVRUROHB6M","short_pith_number":"pith:56E7UWI2","canonical_record":{"source":{"id":"1108.0929","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-08-03T20:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"82033590fa330b425f2643fcd0abe917973f933ca41e1b3fff943b9fbabb7702","abstract_canon_sha256":"c645cdacfabcee9c99b2a051811018d1fb2703f93237195639ad3eae480bdfc1"},"schema_version":"1.0"},"canonical_sha256":"ef89fa591aaa90f4f40e156348b8e1f31bfe560b6da4a4081f25b000bad99ba3","source":{"kind":"arxiv","id":"1108.0929","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0929","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0929v1","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0929","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"pith_short_12","alias_value":"56E7UWI2VKIP","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"56E7UWI2VKIPJ5AO","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"56E7UWI2","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:56E7UWI2VKIPJ5AOCVRUROHB6M","target":"record","payload":{"canonical_record":{"source":{"id":"1108.0929","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-08-03T20:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"82033590fa330b425f2643fcd0abe917973f933ca41e1b3fff943b9fbabb7702","abstract_canon_sha256":"c645cdacfabcee9c99b2a051811018d1fb2703f93237195639ad3eae480bdfc1"},"schema_version":"1.0"},"canonical_sha256":"ef89fa591aaa90f4f40e156348b8e1f31bfe560b6da4a4081f25b000bad99ba3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:03.345655Z","signature_b64":"HNV2PwfZKtxn2R6XHghh+MfQZoCOtFoWG2TjtyONUM6tz7uzNd3+jDbsXKNGsFakV6emlCmUqQrUx8/lWhPoCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef89fa591aaa90f4f40e156348b8e1f31bfe560b6da4a4081f25b000bad99ba3","last_reissued_at":"2026-05-18T02:01:03.344956Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:03.344956Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.0929","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":"2026-05-18T02:01:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TjzLKJfxr6JG/AwMHPTbYfosjS+yNgYb/HomUabOh1fo4JVPr+aub1HQiidVZCICcYoi+0ok4uOvmu6DzlNIAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:05:55.094927Z"},"content_sha256":"d1804df7236db619a622f0e7e7391d5e4a365b22bc7c39464d622a8180fe1af4","schema_version":"1.0","event_id":"sha256:d1804df7236db619a622f0e7e7391d5e4a365b22bc7c39464d622a8180fe1af4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:56E7UWI2VKIPJ5AOCVRUROHB6M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic jet model for GRBs and the delayed arrival of >100 MeV photons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"P. Kumar, Z. Bosnjak","submitted_at":"2011-08-03T20:00:03Z","abstract_excerpt":"Photons of energy larger than 100 MeV from long-GRBs arrive a few seconds after <10 MeV photons do. We show that this delay is a natural consequence of a magnetic dominated relativistic jet. The much slower acceleration of a magnetic jet with radius (compared with a hot baryonic outflow) results in high energy gamma-ray photons to be converted to electron-positron pairs out to a larger radius whereas lower energy gamma-rays of energy less than ~10 MeV can escape when the jet crosses the Thomson-photosphere. The resulting delay for the arrival of high energy photons is found to be similar to th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0929","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":"2026-05-18T02:01:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MvGdH3i59+OuQS5rJKayHnwMekydkWeR8lou9i4s6H9jOMZXTN7We4xTgTl4Vj2DFlIqgpQdXZFTAckTNdC2Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:05:55.095281Z"},"content_sha256":"2b9b181a687ec692d28f4ee533911fd4bc649515ff28ec2b98d5d421b5aa1883","schema_version":"1.0","event_id":"sha256:2b9b181a687ec692d28f4ee533911fd4bc649515ff28ec2b98d5d421b5aa1883"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/56E7UWI2VKIPJ5AOCVRUROHB6M/bundle.json","state_url":"https://pith.science/pith/56E7UWI2VKIPJ5AOCVRUROHB6M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/56E7UWI2VKIPJ5AOCVRUROHB6M/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":"2026-05-28T04:05:55Z","links":{"resolver":"https://pith.science/pith/56E7UWI2VKIPJ5AOCVRUROHB6M","bundle":"https://pith.science/pith/56E7UWI2VKIPJ5AOCVRUROHB6M/bundle.json","state":"https://pith.science/pith/56E7UWI2VKIPJ5AOCVRUROHB6M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/56E7UWI2VKIPJ5AOCVRUROHB6M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:56E7UWI2VKIPJ5AOCVRUROHB6M","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":"c645cdacfabcee9c99b2a051811018d1fb2703f93237195639ad3eae480bdfc1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-08-03T20:00:03Z","title_canon_sha256":"82033590fa330b425f2643fcd0abe917973f933ca41e1b3fff943b9fbabb7702"},"schema_version":"1.0","source":{"id":"1108.0929","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0929","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0929v1","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0929","created_at":"2026-05-18T02:01:03Z"},{"alias_kind":"pith_short_12","alias_value":"56E7UWI2VKIP","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"56E7UWI2VKIPJ5AO","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"56E7UWI2","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:2b9b181a687ec692d28f4ee533911fd4bc649515ff28ec2b98d5d421b5aa1883","target":"graph","created_at":"2026-05-18T02:01:03Z","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":"Photons of energy larger than 100 MeV from long-GRBs arrive a few seconds after <10 MeV photons do. We show that this delay is a natural consequence of a magnetic dominated relativistic jet. The much slower acceleration of a magnetic jet with radius (compared with a hot baryonic outflow) results in high energy gamma-ray photons to be converted to electron-positron pairs out to a larger radius whereas lower energy gamma-rays of energy less than ~10 MeV can escape when the jet crosses the Thomson-photosphere. The resulting delay for the arrival of high energy photons is found to be similar to th","authors_text":"P. Kumar, Z. Bosnjak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-08-03T20:00:03Z","title":"Magnetic jet model for GRBs and the delayed arrival of >100 MeV photons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0929","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:d1804df7236db619a622f0e7e7391d5e4a365b22bc7c39464d622a8180fe1af4","target":"record","created_at":"2026-05-18T02:01:03Z","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":"c645cdacfabcee9c99b2a051811018d1fb2703f93237195639ad3eae480bdfc1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-08-03T20:00:03Z","title_canon_sha256":"82033590fa330b425f2643fcd0abe917973f933ca41e1b3fff943b9fbabb7702"},"schema_version":"1.0","source":{"id":"1108.0929","kind":"arxiv","version":1}},"canonical_sha256":"ef89fa591aaa90f4f40e156348b8e1f31bfe560b6da4a4081f25b000bad99ba3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef89fa591aaa90f4f40e156348b8e1f31bfe560b6da4a4081f25b000bad99ba3","first_computed_at":"2026-05-18T02:01:03.344956Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:03.344956Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HNV2PwfZKtxn2R6XHghh+MfQZoCOtFoWG2TjtyONUM6tz7uzNd3+jDbsXKNGsFakV6emlCmUqQrUx8/lWhPoCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:03.345655Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.0929","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1804df7236db619a622f0e7e7391d5e4a365b22bc7c39464d622a8180fe1af4","sha256:2b9b181a687ec692d28f4ee533911fd4bc649515ff28ec2b98d5d421b5aa1883"],"state_sha256":"f38c92ea830cdb781010e90bea21762e5e2a8e84fa0deb6a7c9eb2b9bbb6335b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D2pPokRfOUb0t4lAGzW2IWq3ZGJUsgCdaSrCnMWk8HCJH44SfgS9cI5dir7TbJFXzoFU1YeRp+XG0mb3kRXQAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T04:05:55.097325Z","bundle_sha256":"1fd96c5b4cab8d1f9de102e03afb655873ca74c585936d01bb78461bb6ece3b4"}}