{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ML5P3JI3JYNHFJZB7YFL4SZUOW","short_pith_number":"pith:ML5P3JI3","canonical_record":{"source":{"id":"1609.00374","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-01T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"e924d3c420d7358aa8f1f7d57555345468a4706081a430ac2797061977c2e5f0","abstract_canon_sha256":"eff3fea8b54eb143ffdd7acd0d0c16c2afae0eea795a960f5676fab1adf8daa9"},"schema_version":"1.0"},"canonical_sha256":"62fafda51b4e1a72a721fe0abe4b3475b06c47d804deb60e859b22e0b354af02","source":{"kind":"arxiv","id":"1609.00374","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.00374","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"arxiv_version","alias_value":"1609.00374v1","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.00374","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"pith_short_12","alias_value":"ML5P3JI3JYNH","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"ML5P3JI3JYNHFJZB","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"ML5P3JI3","created_at":"2026-05-18T12:30:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ML5P3JI3JYNHFJZB7YFL4SZUOW","target":"record","payload":{"canonical_record":{"source":{"id":"1609.00374","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-01T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"e924d3c420d7358aa8f1f7d57555345468a4706081a430ac2797061977c2e5f0","abstract_canon_sha256":"eff3fea8b54eb143ffdd7acd0d0c16c2afae0eea795a960f5676fab1adf8daa9"},"schema_version":"1.0"},"canonical_sha256":"62fafda51b4e1a72a721fe0abe4b3475b06c47d804deb60e859b22e0b354af02","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:07.615619Z","signature_b64":"/WqSt1mmxae87tSp2vsXWw+E9tN5BjLhVuBmoLihp22GeQ7Thmh4Tmzy8qtWutAQ4Fr/MVE/Nem59UOG8Mv4BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"62fafda51b4e1a72a721fe0abe4b3475b06c47d804deb60e859b22e0b354af02","last_reissued_at":"2026-05-18T00:53:07.615058Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:07.615058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.00374","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":"2026-05-18T00:53:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ec1jgLctJmtcfEBgq/igve8ehW4n9HNs/vkp3bhBXX2HuekJqz4NHEQeWGnOKvoZ53w3PSEHrDBAgx312BF0Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:00:53.054459Z"},"content_sha256":"2050aa61225a4688158c90eb080a394fb8e3375cf04b917213bba3af00dc391c","schema_version":"1.0","event_id":"sha256:2050aa61225a4688158c90eb080a394fb8e3375cf04b917213bba3af00dc391c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ML5P3JI3JYNHFJZB7YFL4SZUOW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Phoenix galaxy as seen by NuSTAR","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Comastri, A. Masini, C. J. Hailey, C. Ricci, D. Farrah, D. J. Walton, D. Stern, F. A. Harrison, F. E. Bauer, F. E. Christensen, M. Balokovi\\'c, M. Brightman, M. Guainazzi, M. J. Koss, P. Gandhi, P. G. Boorman, S. E. Boggs, S. M. LaMassa, S. Puccetti, W. W. Craig, W. W. Zhang","submitted_at":"2016-09-01T20:00:00Z","abstract_excerpt":"Aims. We study the long-term variability of the well-known Seyfert 2 galaxy Mrk 1210 (a.k.a. UGC 4203, or the Phoenix galaxy).\n  Methods. The source was observed by many X-ray facilities in the last 20 years. Here we present a NuSTAR observation and put the results in context of previously published observations.\n  Results. NuSTAR observed Mrk 1210 in 2012 for 15.4 ks. The source showed Compton-thin obscuration similar to that observed by Chandra, Suzaku, BeppoSAX and XMM-Newton over the past two decades, but different from the first observation by ASCA in 1995, in which the active nucleus was"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.00374","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":"2026-05-18T00:53:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g61DePZEPu4d9uF2g8izXcjv35efu7q9YOX0auqpiMxz+CwjVWBQii6LOfxj+Md/TK3Aa3yIMuWmSZcRfxClAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:00:53.055131Z"},"content_sha256":"5d74fe70e13f61580f90e60569e9ca0a68e313308ed1cad6781c80eec7fb21a5","schema_version":"1.0","event_id":"sha256:5d74fe70e13f61580f90e60569e9ca0a68e313308ed1cad6781c80eec7fb21a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ML5P3JI3JYNHFJZB7YFL4SZUOW/bundle.json","state_url":"https://pith.science/pith/ML5P3JI3JYNHFJZB7YFL4SZUOW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ML5P3JI3JYNHFJZB7YFL4SZUOW/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":"2026-05-25T19:00:53Z","links":{"resolver":"https://pith.science/pith/ML5P3JI3JYNHFJZB7YFL4SZUOW","bundle":"https://pith.science/pith/ML5P3JI3JYNHFJZB7YFL4SZUOW/bundle.json","state":"https://pith.science/pith/ML5P3JI3JYNHFJZB7YFL4SZUOW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ML5P3JI3JYNHFJZB7YFL4SZUOW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ML5P3JI3JYNHFJZB7YFL4SZUOW","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":"eff3fea8b54eb143ffdd7acd0d0c16c2afae0eea795a960f5676fab1adf8daa9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-01T20:00:00Z","title_canon_sha256":"e924d3c420d7358aa8f1f7d57555345468a4706081a430ac2797061977c2e5f0"},"schema_version":"1.0","source":{"id":"1609.00374","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.00374","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"arxiv_version","alias_value":"1609.00374v1","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.00374","created_at":"2026-05-18T00:53:07Z"},{"alias_kind":"pith_short_12","alias_value":"ML5P3JI3JYNH","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"ML5P3JI3JYNHFJZB","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"ML5P3JI3","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:5d74fe70e13f61580f90e60569e9ca0a68e313308ed1cad6781c80eec7fb21a5","target":"graph","created_at":"2026-05-18T00:53:07Z","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":"Aims. We study the long-term variability of the well-known Seyfert 2 galaxy Mrk 1210 (a.k.a. UGC 4203, or the Phoenix galaxy).\n  Methods. The source was observed by many X-ray facilities in the last 20 years. Here we present a NuSTAR observation and put the results in context of previously published observations.\n  Results. NuSTAR observed Mrk 1210 in 2012 for 15.4 ks. The source showed Compton-thin obscuration similar to that observed by Chandra, Suzaku, BeppoSAX and XMM-Newton over the past two decades, but different from the first observation by ASCA in 1995, in which the active nucleus was","authors_text":"A. Comastri, A. Masini, C. J. Hailey, C. Ricci, D. Farrah, D. J. Walton, D. Stern, F. A. Harrison, F. E. Bauer, F. E. Christensen, M. Balokovi\\'c, M. Brightman, M. Guainazzi, M. J. Koss, P. Gandhi, P. G. Boorman, S. E. Boggs, S. M. LaMassa, S. Puccetti, W. W. Craig, W. W. Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-01T20:00:00Z","title":"The Phoenix galaxy as seen by NuSTAR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.00374","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":"sha256:2050aa61225a4688158c90eb080a394fb8e3375cf04b917213bba3af00dc391c","target":"record","created_at":"2026-05-18T00:53:07Z","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":"eff3fea8b54eb143ffdd7acd0d0c16c2afae0eea795a960f5676fab1adf8daa9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-09-01T20:00:00Z","title_canon_sha256":"e924d3c420d7358aa8f1f7d57555345468a4706081a430ac2797061977c2e5f0"},"schema_version":"1.0","source":{"id":"1609.00374","kind":"arxiv","version":1}},"canonical_sha256":"62fafda51b4e1a72a721fe0abe4b3475b06c47d804deb60e859b22e0b354af02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62fafda51b4e1a72a721fe0abe4b3475b06c47d804deb60e859b22e0b354af02","first_computed_at":"2026-05-18T00:53:07.615058Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:07.615058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/WqSt1mmxae87tSp2vsXWw+E9tN5BjLhVuBmoLihp22GeQ7Thmh4Tmzy8qtWutAQ4Fr/MVE/Nem59UOG8Mv4BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:07.615619Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.00374","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2050aa61225a4688158c90eb080a394fb8e3375cf04b917213bba3af00dc391c","sha256:5d74fe70e13f61580f90e60569e9ca0a68e313308ed1cad6781c80eec7fb21a5"],"state_sha256":"e84e5834a79eb52355e0be9b17a570adf20de3e8bd7a116d75255903daaebc4c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5TjxiaUFjkOi5iU8biv7QFB1aaERD8okt1zJO9XkYwEyxCtfs+uF0Mu+18gx8sGzfMlyFyQ9e2kknlbR/aAHDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:00:53.058986Z","bundle_sha256":"fb27ff437aa51205663bb46a8214681004fd9f2662d7b5085f501ba9d6be9083"}}