{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:42EECJOYXHQY2OU56UQGBFC57F","short_pith_number":"pith:42EECJOY","canonical_record":{"source":{"id":"1307.2040","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-07-08T11:22:10Z","cross_cats_sorted":[],"title_canon_sha256":"b5388324f803439c227854c7a6750b121efd037f7130d87af930c39bae057a2a","abstract_canon_sha256":"a8be35c5e2c8693178990c53dd877d33eb8693279a9ce504600a73eb33f163fa"},"schema_version":"1.0"},"canonical_sha256":"e6884125d8b9e18d3a9df52060945df951276e63d0ec27cd1bef75f64553c2e4","source":{"kind":"arxiv","id":"1307.2040","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2040","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2040v2","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2040","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"pith_short_12","alias_value":"42EECJOYXHQY","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"42EECJOYXHQY2OU5","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"42EECJOY","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:42EECJOYXHQY2OU56UQGBFC57F","target":"record","payload":{"canonical_record":{"source":{"id":"1307.2040","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-07-08T11:22:10Z","cross_cats_sorted":[],"title_canon_sha256":"b5388324f803439c227854c7a6750b121efd037f7130d87af930c39bae057a2a","abstract_canon_sha256":"a8be35c5e2c8693178990c53dd877d33eb8693279a9ce504600a73eb33f163fa"},"schema_version":"1.0"},"canonical_sha256":"e6884125d8b9e18d3a9df52060945df951276e63d0ec27cd1bef75f64553c2e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:58.768246Z","signature_b64":"xahjbxFdipDVd0wENW8IQHnyyGlfkbBzdE56SOqe1XjSjHrTxqlwC10xoequyQAHPZbtFvFPBepdKtqxBLNVCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e6884125d8b9e18d3a9df52060945df951276e63d0ec27cd1bef75f64553c2e4","last_reissued_at":"2026-05-18T01:48:58.767671Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:58.767671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.2040","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":"2026-05-18T01:48:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tJl8Kruxj4m1QVjL/sq6TWVAiMD53H3inHon+Sl9kP6ZKd+Q/xRIhb1vveOzVFjfSXPfEr5QecUUQQWtxQW+Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:31:32.780865Z"},"content_sha256":"8a14b3e6e9fff8efcd2740787a7a14d7ab36ca57e4b421c44a07032cd1d1762b","schema_version":"1.0","event_id":"sha256:8a14b3e6e9fff8efcd2740787a7a14d7ab36ca57e4b421c44a07032cd1d1762b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:42EECJOYXHQY2OU56UQGBFC57F","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Particle Acceleration And Emission Processes In Mrk 421","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Gang Cao, Jiancheng Wang","submitted_at":"2013-07-08T11:22:10Z","abstract_excerpt":"We investigate the X-ray and $\\gamma$-ray flares of Mrk 421 on 2008 June 6-15 using the synchrotron self- Compton(SSC) model with electron acceleration, in which an evident correlation between the X-ray and $\\gamma$-ray bands appears, while no significant correlation between the optical and X-ray band is observed. We argue that the emission from Mrk 421 may originate from two different components. One is the steady component from the outer region that is mainly attributed to the optical band, in which the electrons are accelerated by first-order Fermi acceleration mechanism. We use a steady el"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2040","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":"2026-05-18T01:48:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fsNcOQ5RHi9EAIshkGj6k0pJA3Q+pQ+m3C9gbcpNZho7cTT9hdzbK/1YNexr41XvNQ/Z2svivRP697CUVfnZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:31:32.781543Z"},"content_sha256":"9a6de63b5f0cf1dc5406bbdfbee3b826368b2dd4e2ceec60e646e304d52c17ba","schema_version":"1.0","event_id":"sha256:9a6de63b5f0cf1dc5406bbdfbee3b826368b2dd4e2ceec60e646e304d52c17ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/42EECJOYXHQY2OU56UQGBFC57F/bundle.json","state_url":"https://pith.science/pith/42EECJOYXHQY2OU56UQGBFC57F/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/42EECJOYXHQY2OU56UQGBFC57F/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":"2026-05-27T23:31:32Z","links":{"resolver":"https://pith.science/pith/42EECJOYXHQY2OU56UQGBFC57F","bundle":"https://pith.science/pith/42EECJOYXHQY2OU56UQGBFC57F/bundle.json","state":"https://pith.science/pith/42EECJOYXHQY2OU56UQGBFC57F/state.json","well_known_bundle":"https://pith.science/.well-known/pith/42EECJOYXHQY2OU56UQGBFC57F/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:42EECJOYXHQY2OU56UQGBFC57F","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":"a8be35c5e2c8693178990c53dd877d33eb8693279a9ce504600a73eb33f163fa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-07-08T11:22:10Z","title_canon_sha256":"b5388324f803439c227854c7a6750b121efd037f7130d87af930c39bae057a2a"},"schema_version":"1.0","source":{"id":"1307.2040","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2040","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2040v2","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2040","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"pith_short_12","alias_value":"42EECJOYXHQY","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"42EECJOYXHQY2OU5","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"42EECJOY","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:9a6de63b5f0cf1dc5406bbdfbee3b826368b2dd4e2ceec60e646e304d52c17ba","target":"graph","created_at":"2026-05-18T01:48:58Z","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":"We investigate the X-ray and $\\gamma$-ray flares of Mrk 421 on 2008 June 6-15 using the synchrotron self- Compton(SSC) model with electron acceleration, in which an evident correlation between the X-ray and $\\gamma$-ray bands appears, while no significant correlation between the optical and X-ray band is observed. We argue that the emission from Mrk 421 may originate from two different components. One is the steady component from the outer region that is mainly attributed to the optical band, in which the electrons are accelerated by first-order Fermi acceleration mechanism. We use a steady el","authors_text":"Gang Cao, Jiancheng Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-07-08T11:22:10Z","title":"Particle Acceleration And Emission Processes In Mrk 421"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2040","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":"sha256:8a14b3e6e9fff8efcd2740787a7a14d7ab36ca57e4b421c44a07032cd1d1762b","target":"record","created_at":"2026-05-18T01:48:58Z","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":"a8be35c5e2c8693178990c53dd877d33eb8693279a9ce504600a73eb33f163fa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-07-08T11:22:10Z","title_canon_sha256":"b5388324f803439c227854c7a6750b121efd037f7130d87af930c39bae057a2a"},"schema_version":"1.0","source":{"id":"1307.2040","kind":"arxiv","version":2}},"canonical_sha256":"e6884125d8b9e18d3a9df52060945df951276e63d0ec27cd1bef75f64553c2e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e6884125d8b9e18d3a9df52060945df951276e63d0ec27cd1bef75f64553c2e4","first_computed_at":"2026-05-18T01:48:58.767671Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:58.767671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xahjbxFdipDVd0wENW8IQHnyyGlfkbBzdE56SOqe1XjSjHrTxqlwC10xoequyQAHPZbtFvFPBepdKtqxBLNVCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:58.768246Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.2040","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a14b3e6e9fff8efcd2740787a7a14d7ab36ca57e4b421c44a07032cd1d1762b","sha256:9a6de63b5f0cf1dc5406bbdfbee3b826368b2dd4e2ceec60e646e304d52c17ba"],"state_sha256":"6c7cf2c19448b44e54e176d1c9cecc9892081503e7186b211e2a6f5304551fb1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7aDtn9RDNY6AJ5LxMHolcVzkhQp1JB+YfQHmotEDVQsmIEKsKx2nlkaHf76EMhdqpuB+uAxaFD6KI78QZYCKBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T23:31:32.785356Z","bundle_sha256":"0d3ffd329d4f42e7fbd3b34b12cc863acdadeb2732694e2fe0a1236ebfa8861a"}}