{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:XDE22CD3ACJHXRD3NGDVG4RK53","short_pith_number":"pith:XDE22CD3","canonical_record":{"source":{"id":"0908.0513","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-04T19:09:25Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"f4a01ad207374dfbc7bfe2ae499bae8c492abce127731f98a35e3a2cea31eb3c","abstract_canon_sha256":"93807acb09aa77eb490c53f06bf32f993509365810e25a16e1420aa10952b210"},"schema_version":"1.0"},"canonical_sha256":"b8c9ad087b00927bc47b698753722aeeff51525115f559a84839d0e8ae0f6782","source":{"kind":"arxiv","id":"0908.0513","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.0513","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"arxiv_version","alias_value":"0908.0513v4","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.0513","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"pith_short_12","alias_value":"XDE22CD3ACJH","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"XDE22CD3ACJHXRD3","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"XDE22CD3","created_at":"2026-05-18T12:26:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:XDE22CD3ACJHXRD3NGDVG4RK53","target":"record","payload":{"canonical_record":{"source":{"id":"0908.0513","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-04T19:09:25Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"f4a01ad207374dfbc7bfe2ae499bae8c492abce127731f98a35e3a2cea31eb3c","abstract_canon_sha256":"93807acb09aa77eb490c53f06bf32f993509365810e25a16e1420aa10952b210"},"schema_version":"1.0"},"canonical_sha256":"b8c9ad087b00927bc47b698753722aeeff51525115f559a84839d0e8ae0f6782","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:26.232754Z","signature_b64":"Fr1i0rkpNtGmfldjr0v8BjUyr5GB4Dpl8PYqyi0Ngk18OcbAbtvCScGVZZVftkZgymdEue7qbNcXdTYtxDCwBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b8c9ad087b00927bc47b698753722aeeff51525115f559a84839d0e8ae0f6782","last_reissued_at":"2026-05-18T04:41:26.232051Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:26.232051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0908.0513","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:41:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6uOWmhZ9W40Txov83nnmF3fpBbDE9ojOUJHIYIQX9mdg9GmLTZI/84rKeS5KSli1J9/n65Yl3uDVQJVVIuobBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:18:58.694037Z"},"content_sha256":"1914d3ca6ff012b02e6dd937414e4f9beeb1e838a8f8569cc30751af8284d46c","schema_version":"1.0","event_id":"sha256:1914d3ca6ff012b02e6dd937414e4f9beeb1e838a8f8569cc30751af8284d46c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:XDE22CD3ACJHXRD3NGDVG4RK53","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Synchrotron radiation from ultra-high energy protons and the Fermi observations of GRB 080916C","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"Charles D. Dermer, Justin D. Finke, Soebur Razzaque","submitted_at":"2009-08-04T19:09:25Z","abstract_excerpt":"Fermi gamma-ray telescope data of GRB 080916C with ~1e55 erg in apparent isotropic gamma-ray energy, show a several second delay between the rise of 100 MeV - GeV radiation compared with keV - MeV radiation. Here we show that synchrotron radiation from cosmic ray protons accelerated in GRBs, delayed by the proton synchrotron cooling timescale in a jet of magnetically-dominated shocked plasma moving at highly relativistic speeds with bulk Lorentz factor Gamma ~ 500, could explain this result. A second generation electron synchrotron component from attenuated proton synchrotron radiation makes e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.0513","kind":"arxiv","version":4},"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":"2026-05-18T04:41:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZV7CFDPZb4Vx5fG2kaUmgZ0+w+XHa8OIdSQe3egSrLaYv4tPm1da5sjqUy83IMNF2vJ5kpSMV1+PnkzrDaNbBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:18:58.694427Z"},"content_sha256":"20269bf67c619e97261a0a74dde47d1eb85fac97c18dc3498555e23dd2f67d3a","schema_version":"1.0","event_id":"sha256:20269bf67c619e97261a0a74dde47d1eb85fac97c18dc3498555e23dd2f67d3a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XDE22CD3ACJHXRD3NGDVG4RK53/bundle.json","state_url":"https://pith.science/pith/XDE22CD3ACJHXRD3NGDVG4RK53/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XDE22CD3ACJHXRD3NGDVG4RK53/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":"2026-06-02T01:18:58Z","links":{"resolver":"https://pith.science/pith/XDE22CD3ACJHXRD3NGDVG4RK53","bundle":"https://pith.science/pith/XDE22CD3ACJHXRD3NGDVG4RK53/bundle.json","state":"https://pith.science/pith/XDE22CD3ACJHXRD3NGDVG4RK53/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XDE22CD3ACJHXRD3NGDVG4RK53/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:XDE22CD3ACJHXRD3NGDVG4RK53","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":"93807acb09aa77eb490c53f06bf32f993509365810e25a16e1420aa10952b210","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-04T19:09:25Z","title_canon_sha256":"f4a01ad207374dfbc7bfe2ae499bae8c492abce127731f98a35e3a2cea31eb3c"},"schema_version":"1.0","source":{"id":"0908.0513","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.0513","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"arxiv_version","alias_value":"0908.0513v4","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.0513","created_at":"2026-05-18T04:41:26Z"},{"alias_kind":"pith_short_12","alias_value":"XDE22CD3ACJH","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"XDE22CD3ACJHXRD3","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"XDE22CD3","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:20269bf67c619e97261a0a74dde47d1eb85fac97c18dc3498555e23dd2f67d3a","target":"graph","created_at":"2026-05-18T04:41:26Z","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":"Fermi gamma-ray telescope data of GRB 080916C with ~1e55 erg in apparent isotropic gamma-ray energy, show a several second delay between the rise of 100 MeV - GeV radiation compared with keV - MeV radiation. Here we show that synchrotron radiation from cosmic ray protons accelerated in GRBs, delayed by the proton synchrotron cooling timescale in a jet of magnetically-dominated shocked plasma moving at highly relativistic speeds with bulk Lorentz factor Gamma ~ 500, could explain this result. A second generation electron synchrotron component from attenuated proton synchrotron radiation makes e","authors_text":"Charles D. Dermer, Justin D. Finke, Soebur Razzaque","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-04T19:09:25Z","title":"Synchrotron radiation from ultra-high energy protons and the Fermi observations of GRB 080916C"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.0513","kind":"arxiv","version":4},"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":"sha256:1914d3ca6ff012b02e6dd937414e4f9beeb1e838a8f8569cc30751af8284d46c","target":"record","created_at":"2026-05-18T04:41:26Z","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":"93807acb09aa77eb490c53f06bf32f993509365810e25a16e1420aa10952b210","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-04T19:09:25Z","title_canon_sha256":"f4a01ad207374dfbc7bfe2ae499bae8c492abce127731f98a35e3a2cea31eb3c"},"schema_version":"1.0","source":{"id":"0908.0513","kind":"arxiv","version":4}},"canonical_sha256":"b8c9ad087b00927bc47b698753722aeeff51525115f559a84839d0e8ae0f6782","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8c9ad087b00927bc47b698753722aeeff51525115f559a84839d0e8ae0f6782","first_computed_at":"2026-05-18T04:41:26.232051Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:26.232051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fr1i0rkpNtGmfldjr0v8BjUyr5GB4Dpl8PYqyi0Ngk18OcbAbtvCScGVZZVftkZgymdEue7qbNcXdTYtxDCwBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:26.232754Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.0513","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1914d3ca6ff012b02e6dd937414e4f9beeb1e838a8f8569cc30751af8284d46c","sha256:20269bf67c619e97261a0a74dde47d1eb85fac97c18dc3498555e23dd2f67d3a"],"state_sha256":"6d153cb61a5367ccbae879b916de8777c65825e1664345d4c0d1cacf416c827a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q7WfGU+D7KLkg61Aoa2jrUDygi4JmRmzioQhft+x2JOxzKEyloI76V2gkONeXMfvu9W92c5nES0ONd3bWTjBBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T01:18:58.696510Z","bundle_sha256":"baca83cbf015b4a2ded5c0f36a598305b0543e6d7b05da1268ba85423b13f89c"}}