{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:62Y6MHPDMDN6CJDULVRKI7OYB4","short_pith_number":"pith:62Y6MHPD","canonical_record":{"source":{"id":"1311.1376","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-06T13:11:17Z","cross_cats_sorted":[],"title_canon_sha256":"3186b1bad7fa8870c9397c11b50c480e9a9d460c612670dbd285b31541120849","abstract_canon_sha256":"e3dbd670d0ddf49d852c13d443307f4d44fd44a257239310604c3620f351b742"},"schema_version":"1.0"},"canonical_sha256":"f6b1e61de360dbe124745d62a47dd80f23f19494fe7e27d558046b04574a9c63","source":{"kind":"arxiv","id":"1311.1376","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.1376","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"arxiv_version","alias_value":"1311.1376v1","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1376","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"pith_short_12","alias_value":"62Y6MHPDMDN6","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"62Y6MHPDMDN6CJDU","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"62Y6MHPD","created_at":"2026-05-18T12:27:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:62Y6MHPDMDN6CJDULVRKI7OYB4","target":"record","payload":{"canonical_record":{"source":{"id":"1311.1376","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-06T13:11:17Z","cross_cats_sorted":[],"title_canon_sha256":"3186b1bad7fa8870c9397c11b50c480e9a9d460c612670dbd285b31541120849","abstract_canon_sha256":"e3dbd670d0ddf49d852c13d443307f4d44fd44a257239310604c3620f351b742"},"schema_version":"1.0"},"canonical_sha256":"f6b1e61de360dbe124745d62a47dd80f23f19494fe7e27d558046b04574a9c63","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:38.312641Z","signature_b64":"11rRbDFSg7gUuk+HJCFZj/XsTRpbGbznDtCYq0vv1bdof0gnFjH2vIDIjVfEj702sB2PaX5/nwMiRt3Yk77ODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f6b1e61de360dbe124745d62a47dd80f23f19494fe7e27d558046b04574a9c63","last_reissued_at":"2026-05-18T01:46:38.312208Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:38.312208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.1376","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":"2026-05-18T01:46:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M+axCdWMaMueK9dd+RlwrdZtPWtrilHd1joy7glDdSCIR38OJr3KXqCgTgZAtCc3Lc4DYF0MQAUrJzbmYQ+VCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T08:09:14.155423Z"},"content_sha256":"4c1885656def7af079e5d9b83a75546f366ebb448a06f32fc9220c20bd937492","schema_version":"1.0","event_id":"sha256:4c1885656def7af079e5d9b83a75546f366ebb448a06f32fc9220c20bd937492"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:62Y6MHPDMDN6CJDULVRKI7OYB4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Analysis of X-ray spectral variability and black hole mass determination of the NLS1 galaxy Mrk 766","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"2), (2) Dipartimento di Fisica, (3) INAF -- Osservatorio Astronomico di Bologna), L. Titarchuk (2) ((1) Max-Planck Institute for Nuclear Physics MPIK, R. Gilli (3), S. Giacche` (1, Universita` di Ferrara","submitted_at":"2013-11-06T13:11:17Z","abstract_excerpt":"We present an XMM-Newton time-resolved spectral analysis of the NLS1 galaxy Mrk 766. We analyse eight available observations of the EPIC-pn camera taken between May 2000 and June 2005 to investigate the X-ray spectral variability as produced by changes in the mass accretion rate. The 0.2-10 keV spectra are extracted in time bins longer than 3 ks to accurately trace the variations of the best fit parameters of our adopted Comptonisation spectral model. We test a bulk-motion Comptonisation (BMC) model which is in general applicable to any physical system powered by accretion onto a compact objec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1376","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":"2026-05-18T01:46:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mSyt48jwZHIZdWK6OZ+/4pza5UWl0/x1Fh1B/Dhve4BeIE5Fp6FE4ehtQQnfvKsOjUwb4lblJK5h9Em2RNraCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T08:09:14.155933Z"},"content_sha256":"912cc80c1dc04cdfd610352bb10de502951c167b526fdd613297965df0273af8","schema_version":"1.0","event_id":"sha256:912cc80c1dc04cdfd610352bb10de502951c167b526fdd613297965df0273af8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/62Y6MHPDMDN6CJDULVRKI7OYB4/bundle.json","state_url":"https://pith.science/pith/62Y6MHPDMDN6CJDULVRKI7OYB4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/62Y6MHPDMDN6CJDULVRKI7OYB4/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":"2026-06-06T08:09:14Z","links":{"resolver":"https://pith.science/pith/62Y6MHPDMDN6CJDULVRKI7OYB4","bundle":"https://pith.science/pith/62Y6MHPDMDN6CJDULVRKI7OYB4/bundle.json","state":"https://pith.science/pith/62Y6MHPDMDN6CJDULVRKI7OYB4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/62Y6MHPDMDN6CJDULVRKI7OYB4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:62Y6MHPDMDN6CJDULVRKI7OYB4","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":"e3dbd670d0ddf49d852c13d443307f4d44fd44a257239310604c3620f351b742","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-06T13:11:17Z","title_canon_sha256":"3186b1bad7fa8870c9397c11b50c480e9a9d460c612670dbd285b31541120849"},"schema_version":"1.0","source":{"id":"1311.1376","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.1376","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"arxiv_version","alias_value":"1311.1376v1","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.1376","created_at":"2026-05-18T01:46:38Z"},{"alias_kind":"pith_short_12","alias_value":"62Y6MHPDMDN6","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"62Y6MHPDMDN6CJDU","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"62Y6MHPD","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:912cc80c1dc04cdfd610352bb10de502951c167b526fdd613297965df0273af8","target":"graph","created_at":"2026-05-18T01:46:38Z","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 present an XMM-Newton time-resolved spectral analysis of the NLS1 galaxy Mrk 766. We analyse eight available observations of the EPIC-pn camera taken between May 2000 and June 2005 to investigate the X-ray spectral variability as produced by changes in the mass accretion rate. The 0.2-10 keV spectra are extracted in time bins longer than 3 ks to accurately trace the variations of the best fit parameters of our adopted Comptonisation spectral model. We test a bulk-motion Comptonisation (BMC) model which is in general applicable to any physical system powered by accretion onto a compact objec","authors_text":"2), (2) Dipartimento di Fisica, (3) INAF -- Osservatorio Astronomico di Bologna), L. Titarchuk (2) ((1) Max-Planck Institute for Nuclear Physics MPIK, R. Gilli (3), S. Giacche` (1, Universita` di Ferrara","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-06T13:11:17Z","title":"Analysis of X-ray spectral variability and black hole mass determination of the NLS1 galaxy Mrk 766"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.1376","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":"sha256:4c1885656def7af079e5d9b83a75546f366ebb448a06f32fc9220c20bd937492","target":"record","created_at":"2026-05-18T01:46:38Z","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":"e3dbd670d0ddf49d852c13d443307f4d44fd44a257239310604c3620f351b742","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-11-06T13:11:17Z","title_canon_sha256":"3186b1bad7fa8870c9397c11b50c480e9a9d460c612670dbd285b31541120849"},"schema_version":"1.0","source":{"id":"1311.1376","kind":"arxiv","version":1}},"canonical_sha256":"f6b1e61de360dbe124745d62a47dd80f23f19494fe7e27d558046b04574a9c63","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f6b1e61de360dbe124745d62a47dd80f23f19494fe7e27d558046b04574a9c63","first_computed_at":"2026-05-18T01:46:38.312208Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:38.312208Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"11rRbDFSg7gUuk+HJCFZj/XsTRpbGbznDtCYq0vv1bdof0gnFjH2vIDIjVfEj702sB2PaX5/nwMiRt3Yk77ODQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:38.312641Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.1376","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c1885656def7af079e5d9b83a75546f366ebb448a06f32fc9220c20bd937492","sha256:912cc80c1dc04cdfd610352bb10de502951c167b526fdd613297965df0273af8"],"state_sha256":"3e3a2e0fe518aa53c7f37874119ff2fba79b8736096fa1aede03c1b5a3d41c85"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g1Cood4Mag7WxhteSq4v9mB1lEd1+QionodKy4GRgDq2JZZ7141Er1ihzsRW+7Pw5MtapdC+KZElIgeXWq27AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T08:09:14.159920Z","bundle_sha256":"b45cdf9560492be8c719f7faaf170d1eab3f2e4469fc21007059ed138806c82e"}}