{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3MW2HG3RO7RC5VYPAUYYJII5YZ","short_pith_number":"pith:3MW2HG3R","canonical_record":{"source":{"id":"1709.03755","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-09-12T09:21:46Z","cross_cats_sorted":[],"title_canon_sha256":"03d2c74bc1a9ec31bc1a0be11c7ce8c96ddf9b677a76d9fb6e23646035f7eecd","abstract_canon_sha256":"89e61f3ad7fde070c6d7e219d926d3e803bbd5d8cdf1eb7a02f840ae2c0d57e6"},"schema_version":"1.0"},"canonical_sha256":"db2da39b7177e22ed70f053184a11dc677f72506e1ffeeb07441aea342f8ec6e","source":{"kind":"arxiv","id":"1709.03755","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.03755","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"arxiv_version","alias_value":"1709.03755v1","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03755","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"pith_short_12","alias_value":"3MW2HG3RO7RC","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3MW2HG3RO7RC5VYP","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3MW2HG3R","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3MW2HG3RO7RC5VYPAUYYJII5YZ","target":"record","payload":{"canonical_record":{"source":{"id":"1709.03755","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-09-12T09:21:46Z","cross_cats_sorted":[],"title_canon_sha256":"03d2c74bc1a9ec31bc1a0be11c7ce8c96ddf9b677a76d9fb6e23646035f7eecd","abstract_canon_sha256":"89e61f3ad7fde070c6d7e219d926d3e803bbd5d8cdf1eb7a02f840ae2c0d57e6"},"schema_version":"1.0"},"canonical_sha256":"db2da39b7177e22ed70f053184a11dc677f72506e1ffeeb07441aea342f8ec6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:32:20.141037Z","signature_b64":"pbhrxjxXJ1+r7bTHWfLoC6Z+NuslengXYMDFP5cGZY9uhUI9PxG4iK54hP0ygMeLuRiZQ3Wh0B7qQ18FlBsBBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"db2da39b7177e22ed70f053184a11dc677f72506e1ffeeb07441aea342f8ec6e","last_reissued_at":"2026-05-18T00:32:20.140363Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:32:20.140363Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.03755","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":"2026-05-18T00:32:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b/eTmnMXAAjx/AalJfi7svPyD+uPT9NDNFFiHB3SKManU+eis0AUeeZkx2XtnKwXP9bytHXhXuvfLsp0ZH4sAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-19T22:26:13.415958Z"},"content_sha256":"7aa16d8943f3c35cd40912f79f14ea64ed0a561cc2e5d44257928ddc52f4fcef","schema_version":"1.0","event_id":"sha256:7aa16d8943f3c35cd40912f79f14ea64ed0a561cc2e5d44257928ddc52f4fcef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3MW2HG3RO7RC5VYPAUYYJII5YZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Rapid Gamma-ray variability of NGC 1275","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"N. Sahakyan, S. Gasparyan, V. Baghmanyan","submitted_at":"2017-09-12T09:21:46Z","abstract_excerpt":"We report on a detailed analysis of the $\\gamma$-ray light curve of NGC 1275 using the Fermi large area telescope data accumulated in 2008-2017. Major $\\gamma$-ray flares were observed in October 2015 and December 2016/January 2017 when the source reached a daily peak flux of $(2.21\\pm0.26)\\times10^{-6}\\:{\\rm photon\\:cm^{-2}\\:s^{-1}}$, achieving a flux of $(3.48\\pm0.87)\\times10^{-6}\\:{\\rm photon\\:cm^{-2}\\:s^{-1}}$ within 3 hours, which corresponds to an apparent isotropic $\\gamma$-ray luminosity of $\\simeq3.84\\times10^{45}\\:{\\rm erg\\:s^{-1}}$. The most rapid flare had e-folding time as short a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03755","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":"2026-05-18T00:32:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BaGqnVUZbv7O2clC4CoQq8ZSQJbFKd8M9OVu3zveDluLtFKaFYzDBBZ6g1tgwzGM2uV+KDFQDApo1GNrQl7GDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-19T22:26:13.416306Z"},"content_sha256":"fb80481879cf04e62733079ec717155ae60203f44ba139a5213e1269b8521867","schema_version":"1.0","event_id":"sha256:fb80481879cf04e62733079ec717155ae60203f44ba139a5213e1269b8521867"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3MW2HG3RO7RC5VYPAUYYJII5YZ/bundle.json","state_url":"https://pith.science/pith/3MW2HG3RO7RC5VYPAUYYJII5YZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3MW2HG3RO7RC5VYPAUYYJII5YZ/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":"2026-06-19T22:26:13Z","links":{"resolver":"https://pith.science/pith/3MW2HG3RO7RC5VYPAUYYJII5YZ","bundle":"https://pith.science/pith/3MW2HG3RO7RC5VYPAUYYJII5YZ/bundle.json","state":"https://pith.science/pith/3MW2HG3RO7RC5VYPAUYYJII5YZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3MW2HG3RO7RC5VYPAUYYJII5YZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3MW2HG3RO7RC5VYPAUYYJII5YZ","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":"89e61f3ad7fde070c6d7e219d926d3e803bbd5d8cdf1eb7a02f840ae2c0d57e6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-09-12T09:21:46Z","title_canon_sha256":"03d2c74bc1a9ec31bc1a0be11c7ce8c96ddf9b677a76d9fb6e23646035f7eecd"},"schema_version":"1.0","source":{"id":"1709.03755","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.03755","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"arxiv_version","alias_value":"1709.03755v1","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.03755","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"pith_short_12","alias_value":"3MW2HG3RO7RC","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3MW2HG3RO7RC5VYP","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3MW2HG3R","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:fb80481879cf04e62733079ec717155ae60203f44ba139a5213e1269b8521867","target":"graph","created_at":"2026-05-18T00:32:20Z","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 report on a detailed analysis of the $\\gamma$-ray light curve of NGC 1275 using the Fermi large area telescope data accumulated in 2008-2017. Major $\\gamma$-ray flares were observed in October 2015 and December 2016/January 2017 when the source reached a daily peak flux of $(2.21\\pm0.26)\\times10^{-6}\\:{\\rm photon\\:cm^{-2}\\:s^{-1}}$, achieving a flux of $(3.48\\pm0.87)\\times10^{-6}\\:{\\rm photon\\:cm^{-2}\\:s^{-1}}$ within 3 hours, which corresponds to an apparent isotropic $\\gamma$-ray luminosity of $\\simeq3.84\\times10^{45}\\:{\\rm erg\\:s^{-1}}$. The most rapid flare had e-folding time as short a","authors_text":"N. Sahakyan, S. Gasparyan, V. Baghmanyan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-09-12T09:21:46Z","title":"Rapid Gamma-ray variability of NGC 1275"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.03755","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":"sha256:7aa16d8943f3c35cd40912f79f14ea64ed0a561cc2e5d44257928ddc52f4fcef","target":"record","created_at":"2026-05-18T00:32:20Z","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":"89e61f3ad7fde070c6d7e219d926d3e803bbd5d8cdf1eb7a02f840ae2c0d57e6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-09-12T09:21:46Z","title_canon_sha256":"03d2c74bc1a9ec31bc1a0be11c7ce8c96ddf9b677a76d9fb6e23646035f7eecd"},"schema_version":"1.0","source":{"id":"1709.03755","kind":"arxiv","version":1}},"canonical_sha256":"db2da39b7177e22ed70f053184a11dc677f72506e1ffeeb07441aea342f8ec6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"db2da39b7177e22ed70f053184a11dc677f72506e1ffeeb07441aea342f8ec6e","first_computed_at":"2026-05-18T00:32:20.140363Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:32:20.140363Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pbhrxjxXJ1+r7bTHWfLoC6Z+NuslengXYMDFP5cGZY9uhUI9PxG4iK54hP0ygMeLuRiZQ3Wh0B7qQ18FlBsBBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:32:20.141037Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.03755","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7aa16d8943f3c35cd40912f79f14ea64ed0a561cc2e5d44257928ddc52f4fcef","sha256:fb80481879cf04e62733079ec717155ae60203f44ba139a5213e1269b8521867"],"state_sha256":"91ff8611177763359657bd6047ddca354463732d975986aad1273b95b160149a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lDZyOCgj2T9Eck9Kt/3NsDqjwqjPVE9tXbS3MDjmJPTuRxJ1EAP/EhlD6RyxWgROMDuN9QAPmxrPYaorYKdZDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-19T22:26:13.418279Z","bundle_sha256":"c81e2bfdfa090ae36a43393fc08d70dc2f335e1dcff18c33aa4ce8cb0cd161c1"}}