{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:ERGQN3ES2IQQ4TXVYOTSMXOLRE","short_pith_number":"pith:ERGQN3ES","canonical_record":{"source":{"id":"2205.03021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T05:31:22Z","cross_cats_sorted":[],"title_canon_sha256":"aeb62a00c6df0229f8f106724496795e697797a3ac254088eb31aecb279ef442","abstract_canon_sha256":"694eccc6e9f76e3f8b165adb33ab574009614d0453460e20aa8a96a741e11119"},"schema_version":"1.0"},"canonical_sha256":"244d06ec92d2210e4ef5c3a7265dcb890c45d0d3e0fad242f69361099fb5d8ab","source":{"kind":"arxiv","id":"2205.03021","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.03021","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"arxiv_version","alias_value":"2205.03021v1","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.03021","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"pith_short_12","alias_value":"ERGQN3ES2IQQ","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"pith_short_16","alias_value":"ERGQN3ES2IQQ4TXV","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"pith_short_8","alias_value":"ERGQN3ES","created_at":"2026-07-05T04:20:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:ERGQN3ES2IQQ4TXVYOTSMXOLRE","target":"record","payload":{"canonical_record":{"source":{"id":"2205.03021","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T05:31:22Z","cross_cats_sorted":[],"title_canon_sha256":"aeb62a00c6df0229f8f106724496795e697797a3ac254088eb31aecb279ef442","abstract_canon_sha256":"694eccc6e9f76e3f8b165adb33ab574009614d0453460e20aa8a96a741e11119"},"schema_version":"1.0"},"canonical_sha256":"244d06ec92d2210e4ef5c3a7265dcb890c45d0d3e0fad242f69361099fb5d8ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:20:47.438426Z","signature_b64":"plLiM8av+qXhb1EVlbP9zzhPMlfRxrDXCjVvgZBNQToTKPHf4HOp4jxIWdYwxVZBzcZUYYhfl28HvUu9Jtg3BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"244d06ec92d2210e4ef5c3a7265dcb890c45d0d3e0fad242f69361099fb5d8ab","last_reissued_at":"2026-07-05T04:20:47.438008Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:20:47.438008Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.03021","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":"2026-07-05T04:20:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hqnUpOFtl9C0a+xczCAPsKuBJYbNDcw/vRAXV6D6Fi0fv1+axt77x6gp0Nl9fWDIiczHaKmHUMGjwq1SBN9MCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:17:47.121711Z"},"content_sha256":"e3d69698076dcced41d5e5561d46d8991c94719b9db9189354b2d14836bf6514","schema_version":"1.0","event_id":"sha256:e3d69698076dcced41d5e5561d46d8991c94719b9db9189354b2d14836bf6514"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:ERGQN3ES2IQQ4TXVYOTSMXOLRE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simple interpretation of the seemingly complicated X-ray spectral variation of NGC 5548","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Ken Ebisawa, Misaki Mizumoto, Takuya Midooka, Yasuharu Sugawara","submitted_at":"2022-05-06T05:31:22Z","abstract_excerpt":"NGC 5548 is a very well-studied Seyfert 1 galaxy in broad wavelengths. Previous multiwavelength observation campaigns have indicated that its multiple absorbers are highly variable and complex. A previous study applied a two-zone partial covering model with different covering fractions to explain the complex X-ray spectral variation and reported a correlation between one of the covering fractions and the photon index of the power-law continuum. However, it is not straightforward to physically understand such a correlation. In this paper, we propose a model to avoid this unphysical situation; t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.03021","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2205.03021/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:20:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5TuwMRsx2RB+c55TQDZTeJUoCYLWUXDWzUS7K6x8EqcoNYNJjROxTduvaQcPtcptI/GSH1fOaG/8ixCMMhquBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:17:47.122620Z"},"content_sha256":"62f7c97f4598a3f67893e25d6a7e6a2ee672d210fa58ed2f3e70d2d97ee8dd60","schema_version":"1.0","event_id":"sha256:62f7c97f4598a3f67893e25d6a7e6a2ee672d210fa58ed2f3e70d2d97ee8dd60"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ERGQN3ES2IQQ4TXVYOTSMXOLRE/bundle.json","state_url":"https://pith.science/pith/ERGQN3ES2IQQ4TXVYOTSMXOLRE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ERGQN3ES2IQQ4TXVYOTSMXOLRE/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":"2026-08-03T18:17:47Z","links":{"resolver":"https://pith.science/pith/ERGQN3ES2IQQ4TXVYOTSMXOLRE","bundle":"https://pith.science/pith/ERGQN3ES2IQQ4TXVYOTSMXOLRE/bundle.json","state":"https://pith.science/pith/ERGQN3ES2IQQ4TXVYOTSMXOLRE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ERGQN3ES2IQQ4TXVYOTSMXOLRE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:ERGQN3ES2IQQ4TXVYOTSMXOLRE","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":"694eccc6e9f76e3f8b165adb33ab574009614d0453460e20aa8a96a741e11119","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T05:31:22Z","title_canon_sha256":"aeb62a00c6df0229f8f106724496795e697797a3ac254088eb31aecb279ef442"},"schema_version":"1.0","source":{"id":"2205.03021","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.03021","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"arxiv_version","alias_value":"2205.03021v1","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.03021","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"pith_short_12","alias_value":"ERGQN3ES2IQQ","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"pith_short_16","alias_value":"ERGQN3ES2IQQ4TXV","created_at":"2026-07-05T04:20:47Z"},{"alias_kind":"pith_short_8","alias_value":"ERGQN3ES","created_at":"2026-07-05T04:20:47Z"}],"graph_snapshots":[{"event_id":"sha256:62f7c97f4598a3f67893e25d6a7e6a2ee672d210fa58ed2f3e70d2d97ee8dd60","target":"graph","created_at":"2026-07-05T04:20:47Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2205.03021/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"NGC 5548 is a very well-studied Seyfert 1 galaxy in broad wavelengths. Previous multiwavelength observation campaigns have indicated that its multiple absorbers are highly variable and complex. A previous study applied a two-zone partial covering model with different covering fractions to explain the complex X-ray spectral variation and reported a correlation between one of the covering fractions and the photon index of the power-law continuum. However, it is not straightforward to physically understand such a correlation. In this paper, we propose a model to avoid this unphysical situation; t","authors_text":"Ken Ebisawa, Misaki Mizumoto, Takuya Midooka, Yasuharu Sugawara","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T05:31:22Z","title":"Simple interpretation of the seemingly complicated X-ray spectral variation of NGC 5548"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.03021","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:e3d69698076dcced41d5e5561d46d8991c94719b9db9189354b2d14836bf6514","target":"record","created_at":"2026-07-05T04:20:47Z","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":"694eccc6e9f76e3f8b165adb33ab574009614d0453460e20aa8a96a741e11119","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T05:31:22Z","title_canon_sha256":"aeb62a00c6df0229f8f106724496795e697797a3ac254088eb31aecb279ef442"},"schema_version":"1.0","source":{"id":"2205.03021","kind":"arxiv","version":1}},"canonical_sha256":"244d06ec92d2210e4ef5c3a7265dcb890c45d0d3e0fad242f69361099fb5d8ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"244d06ec92d2210e4ef5c3a7265dcb890c45d0d3e0fad242f69361099fb5d8ab","first_computed_at":"2026-07-05T04:20:47.438008Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:20:47.438008Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"plLiM8av+qXhb1EVlbP9zzhPMlfRxrDXCjVvgZBNQToTKPHf4HOp4jxIWdYwxVZBzcZUYYhfl28HvUu9Jtg3BA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:20:47.438426Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.03021","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3d69698076dcced41d5e5561d46d8991c94719b9db9189354b2d14836bf6514","sha256:62f7c97f4598a3f67893e25d6a7e6a2ee672d210fa58ed2f3e70d2d97ee8dd60"],"state_sha256":"60af45debc5c89cac31849d70ccd9fc162dc5de1b5de7ce868c5c594a6f9969a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pfiysGpZqM0rf2h0i/tX+ytiSw1zYHFaxJXNBLsHCP1ZmmpDzxHYndMUBfGUaIlYZF2wRXZocSpM2LqqeHr+Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:17:47.128302Z","bundle_sha256":"e1a50515eda74f195304299b8c3934f03100ae9fbfb755600633ef6b094d5d24"}}