{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:WL6SCI2O3UZZJS4ZDBP5PVKLFZ","short_pith_number":"pith:WL6SCI2O","canonical_record":{"source":{"id":"1504.02626","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-10T10:04:35Z","cross_cats_sorted":[],"title_canon_sha256":"7042bd1d15f116357a3d3c9f0d27c85a41a2187e3f144bbfa48921769e510551","abstract_canon_sha256":"bf5fe2abda5b354dbe512068b00c5280afd58fc6875e12d13e079961f775719b"},"schema_version":"1.0"},"canonical_sha256":"b2fd21234edd3394cb99185fd7d54b2e4d2d89b4f16c951a694a74f6899db6c0","source":{"kind":"arxiv","id":"1504.02626","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.02626","created_at":"2026-05-18T01:32:29Z"},{"alias_kind":"arxiv_version","alias_value":"1504.02626v1","created_at":"2026-05-18T01:32:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02626","created_at":"2026-05-18T01:32:29Z"},{"alias_kind":"pith_short_12","alias_value":"WL6SCI2O3UZZ","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WL6SCI2O3UZZJS4Z","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WL6SCI2O","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:WL6SCI2O3UZZJS4ZDBP5PVKLFZ","target":"record","payload":{"canonical_record":{"source":{"id":"1504.02626","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-10T10:04:35Z","cross_cats_sorted":[],"title_canon_sha256":"7042bd1d15f116357a3d3c9f0d27c85a41a2187e3f144bbfa48921769e510551","abstract_canon_sha256":"bf5fe2abda5b354dbe512068b00c5280afd58fc6875e12d13e079961f775719b"},"schema_version":"1.0"},"canonical_sha256":"b2fd21234edd3394cb99185fd7d54b2e4d2d89b4f16c951a694a74f6899db6c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:32:29.810929Z","signature_b64":"n0X6ydJIc0QZ1AwSRN24BSaSqYF6SHPrIuQCGRgfX8k+pwkTzLGas6sWRLrTujGcMg6tN5hpikLGW0BcMu9sDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2fd21234edd3394cb99185fd7d54b2e4d2d89b4f16c951a694a74f6899db6c0","last_reissued_at":"2026-05-18T01:32:29.810338Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:32:29.810338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.02626","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":"2026-05-18T01:32:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RaWzzu4t5xD/3FRMCtQGsFkbs/VrFCSqEB0wI3zXddX5rWSf0Ek19WC00XISrOOttc8GL21NOmvxnBMqRCFcCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T17:47:15.339874Z"},"content_sha256":"0deb6b256621dc300d3e7017f19a808bf1dd8d1d77769eb90e8cbf3279beae9a","schema_version":"1.0","event_id":"sha256:0deb6b256621dc300d3e7017f19a808bf1dd8d1d77769eb90e8cbf3279beae9a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:WL6SCI2O3UZZJS4ZDBP5PVKLFZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Physics of Gamma-Ray Bursts Prompt Emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Asaf Pe'er","submitted_at":"2015-04-10T10:04:35Z","abstract_excerpt":"In recent years, our understanding of gamma-ray bursts (GRB) prompt emission has been revolutionized, due to a combination of new instruments, new analysis methods and novel ideas. In this review, I describe the most recent observational results and the current theoretical interpretation. Observationally, a major development is the rise of time-resolved spectral analysis. These led to (I) identification of a distinguished high energy component, with GeV photons often seen at a delay; and (II) firm evidence for the existence of a photospheric (thermal) component in a large number of bursts. The"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02626","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":"2026-05-18T01:32:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eNSgMbEej61X30nOATG2sznIjlhG/UF/Kki1Hod7SsSwnSkTGOHvIB6ujkHvsVTV+mxDVSm5gGCCi572kmvQCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T17:47:15.340342Z"},"content_sha256":"445be332eb5faf08e4722b08c11b0d1152cafdfc63daff7d56f8775dead29e60","schema_version":"1.0","event_id":"sha256:445be332eb5faf08e4722b08c11b0d1152cafdfc63daff7d56f8775dead29e60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WL6SCI2O3UZZJS4ZDBP5PVKLFZ/bundle.json","state_url":"https://pith.science/pith/WL6SCI2O3UZZJS4ZDBP5PVKLFZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WL6SCI2O3UZZJS4ZDBP5PVKLFZ/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":"2026-08-12T17:47:15Z","links":{"resolver":"https://pith.science/pith/WL6SCI2O3UZZJS4ZDBP5PVKLFZ","bundle":"https://pith.science/pith/WL6SCI2O3UZZJS4ZDBP5PVKLFZ/bundle.json","state":"https://pith.science/pith/WL6SCI2O3UZZJS4ZDBP5PVKLFZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WL6SCI2O3UZZJS4ZDBP5PVKLFZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:WL6SCI2O3UZZJS4ZDBP5PVKLFZ","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":"bf5fe2abda5b354dbe512068b00c5280afd58fc6875e12d13e079961f775719b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-10T10:04:35Z","title_canon_sha256":"7042bd1d15f116357a3d3c9f0d27c85a41a2187e3f144bbfa48921769e510551"},"schema_version":"1.0","source":{"id":"1504.02626","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.02626","created_at":"2026-05-18T01:32:29Z"},{"alias_kind":"arxiv_version","alias_value":"1504.02626v1","created_at":"2026-05-18T01:32:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02626","created_at":"2026-05-18T01:32:29Z"},{"alias_kind":"pith_short_12","alias_value":"WL6SCI2O3UZZ","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WL6SCI2O3UZZJS4Z","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WL6SCI2O","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:445be332eb5faf08e4722b08c11b0d1152cafdfc63daff7d56f8775dead29e60","target":"graph","created_at":"2026-05-18T01:32:29Z","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":"In recent years, our understanding of gamma-ray bursts (GRB) prompt emission has been revolutionized, due to a combination of new instruments, new analysis methods and novel ideas. In this review, I describe the most recent observational results and the current theoretical interpretation. Observationally, a major development is the rise of time-resolved spectral analysis. These led to (I) identification of a distinguished high energy component, with GeV photons often seen at a delay; and (II) firm evidence for the existence of a photospheric (thermal) component in a large number of bursts. The","authors_text":"Asaf Pe'er","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-10T10:04:35Z","title":"Physics of Gamma-Ray Bursts Prompt Emission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02626","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":"sha256:0deb6b256621dc300d3e7017f19a808bf1dd8d1d77769eb90e8cbf3279beae9a","target":"record","created_at":"2026-05-18T01:32:29Z","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":"bf5fe2abda5b354dbe512068b00c5280afd58fc6875e12d13e079961f775719b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-04-10T10:04:35Z","title_canon_sha256":"7042bd1d15f116357a3d3c9f0d27c85a41a2187e3f144bbfa48921769e510551"},"schema_version":"1.0","source":{"id":"1504.02626","kind":"arxiv","version":1}},"canonical_sha256":"b2fd21234edd3394cb99185fd7d54b2e4d2d89b4f16c951a694a74f6899db6c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2fd21234edd3394cb99185fd7d54b2e4d2d89b4f16c951a694a74f6899db6c0","first_computed_at":"2026-05-18T01:32:29.810338Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:29.810338Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n0X6ydJIc0QZ1AwSRN24BSaSqYF6SHPrIuQCGRgfX8k+pwkTzLGas6sWRLrTujGcMg6tN5hpikLGW0BcMu9sDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:29.810929Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.02626","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0deb6b256621dc300d3e7017f19a808bf1dd8d1d77769eb90e8cbf3279beae9a","sha256:445be332eb5faf08e4722b08c11b0d1152cafdfc63daff7d56f8775dead29e60"],"state_sha256":"64a1dc43381ea27f143551ae6818807b96efc06b9758254defeea802390552ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C7oz3FtJi1F95VXMofFaaBs3a2OD7T4uwuqNi7Q+iy6V8TLRWrXGwBQI5RYpJso/zb2xHHhYbzhuVlEjx4leDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T17:47:15.345083Z","bundle_sha256":"7fb23892f18ab36b8bc5e65e6feda9a4754abede6961389061bfdcd4117911ea"}}