{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:RI6BAJYJLQX7WK7XSCPJKVO335","short_pith_number":"pith:RI6BAJYJ","canonical_record":{"source":{"id":"2406.15901","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-22T17:35:45Z","cross_cats_sorted":[],"title_canon_sha256":"317a1c1b253d58774a45e698121c8e7d8dfb2d7b47a43f5436d471029db5f15b","abstract_canon_sha256":"9b0b6814cfa33b426b0c2f0193a81afd7a8bbbd64ae726c955454a593d92b554"},"schema_version":"1.0"},"canonical_sha256":"8a3c1027095c2ffb2bf7909e9555dbdf6c81fb411e69b26269096f2a7cbf301d","source":{"kind":"arxiv","id":"2406.15901","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.15901","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"arxiv_version","alias_value":"2406.15901v1","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.15901","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"pith_short_12","alias_value":"RI6BAJYJLQX7","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"pith_short_16","alias_value":"RI6BAJYJLQX7WK7X","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"pith_short_8","alias_value":"RI6BAJYJ","created_at":"2026-07-05T08:35:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:RI6BAJYJLQX7WK7XSCPJKVO335","target":"record","payload":{"canonical_record":{"source":{"id":"2406.15901","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-22T17:35:45Z","cross_cats_sorted":[],"title_canon_sha256":"317a1c1b253d58774a45e698121c8e7d8dfb2d7b47a43f5436d471029db5f15b","abstract_canon_sha256":"9b0b6814cfa33b426b0c2f0193a81afd7a8bbbd64ae726c955454a593d92b554"},"schema_version":"1.0"},"canonical_sha256":"8a3c1027095c2ffb2bf7909e9555dbdf6c81fb411e69b26269096f2a7cbf301d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:35:50.286430Z","signature_b64":"DMMPMgow3t7B/dSioLb96lfaKx+pbFPMQA18uUfRGtrWKcFZV4/63SjdOJFmjjyrgKLszrt7J1OAkfUFECNtDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a3c1027095c2ffb2bf7909e9555dbdf6c81fb411e69b26269096f2a7cbf301d","last_reissued_at":"2026-07-05T08:35:50.285950Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:35:50.285950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.15901","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":"2026-07-05T08:35:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fdto9qB0jSBeXeHm+MrAIBhnLd1a2KZ98j04AujgahorSPxzUSg023qJwbl+O8OgnOGSsc1Tw8IJA8pa37MKDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T22:35:45.327713Z"},"content_sha256":"55f1c073a20748a5f3575ad16e8e9c7980b772ce79b6651480b22386d4edbc53","schema_version":"1.0","event_id":"sha256:55f1c073a20748a5f3575ad16e8e9c7980b772ce79b6651480b22386d4edbc53"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:RI6BAJYJLQX7WK7XSCPJKVO335","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"XMM-Newton Ultra Narrow Deep Field survey II: X-ray spectral analysis of the brightest AGN population","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. L. Longinotti, C. Vignali, D. Rosa-Gonz\\'alez, F. Nicastro, M. El\\'ias-Ch\\'avez, S. Mathur, T. Miyaji, Y. D. Mayya, Y. Krongold","submitted_at":"2024-06-22T17:35:45Z","abstract_excerpt":"In this work, we present the results of a detailed X-ray spectral analysis of the brightest AGNs detected in the XMM-Newton 1.75 Ms Ultra Narrow Deep Field. We analyzed 23 AGNs that have a luminosity range of $\\sim 10^{42} - 10^{46}\\, \\rm{erg}\\, \\rm{s}^{-1}$ in the $2 - 10\\, \\rm{keV}$ energy band, redshifts up to 2.66, and $\\sim 10,000$ X-ray photon counts in the $0.3 - 10\\, \\rm{keV}$ energy band. Our analysis confirms the Iwasawa-Taniguchi effect, an anti-correlation between the X-ray luminosity ($L_x$) and the Fe-k$\\alpha$ Equivalent Width ($EW_{Fe}$) possibly associated with the decreasing "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.15901","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/2406.15901/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":"2026-07-05T08:35:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u7uutMjTwf/z0XirQsgt2iOiWyU5ObfBXZnmLUquwEBpiEpq0YBMpnf/tTOozFY2Am/WQkKusiIBm+FOuIFZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T22:35:45.328618Z"},"content_sha256":"5550fad4f952e99aeb9155a27424ed45a99d1683db16641537894c71f639aaea","schema_version":"1.0","event_id":"sha256:5550fad4f952e99aeb9155a27424ed45a99d1683db16641537894c71f639aaea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RI6BAJYJLQX7WK7XSCPJKVO335/bundle.json","state_url":"https://pith.science/pith/RI6BAJYJLQX7WK7XSCPJKVO335/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RI6BAJYJLQX7WK7XSCPJKVO335/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":"2026-08-04T22:35:45Z","links":{"resolver":"https://pith.science/pith/RI6BAJYJLQX7WK7XSCPJKVO335","bundle":"https://pith.science/pith/RI6BAJYJLQX7WK7XSCPJKVO335/bundle.json","state":"https://pith.science/pith/RI6BAJYJLQX7WK7XSCPJKVO335/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RI6BAJYJLQX7WK7XSCPJKVO335/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:RI6BAJYJLQX7WK7XSCPJKVO335","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":"9b0b6814cfa33b426b0c2f0193a81afd7a8bbbd64ae726c955454a593d92b554","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-22T17:35:45Z","title_canon_sha256":"317a1c1b253d58774a45e698121c8e7d8dfb2d7b47a43f5436d471029db5f15b"},"schema_version":"1.0","source":{"id":"2406.15901","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.15901","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"arxiv_version","alias_value":"2406.15901v1","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.15901","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"pith_short_12","alias_value":"RI6BAJYJLQX7","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"pith_short_16","alias_value":"RI6BAJYJLQX7WK7X","created_at":"2026-07-05T08:35:50Z"},{"alias_kind":"pith_short_8","alias_value":"RI6BAJYJ","created_at":"2026-07-05T08:35:50Z"}],"graph_snapshots":[{"event_id":"sha256:5550fad4f952e99aeb9155a27424ed45a99d1683db16641537894c71f639aaea","target":"graph","created_at":"2026-07-05T08:35:50Z","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/2406.15901/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we present the results of a detailed X-ray spectral analysis of the brightest AGNs detected in the XMM-Newton 1.75 Ms Ultra Narrow Deep Field. We analyzed 23 AGNs that have a luminosity range of $\\sim 10^{42} - 10^{46}\\, \\rm{erg}\\, \\rm{s}^{-1}$ in the $2 - 10\\, \\rm{keV}$ energy band, redshifts up to 2.66, and $\\sim 10,000$ X-ray photon counts in the $0.3 - 10\\, \\rm{keV}$ energy band. Our analysis confirms the Iwasawa-Taniguchi effect, an anti-correlation between the X-ray luminosity ($L_x$) and the Fe-k$\\alpha$ Equivalent Width ($EW_{Fe}$) possibly associated with the decreasing ","authors_text":"A. L. Longinotti, C. Vignali, D. Rosa-Gonz\\'alez, F. Nicastro, M. El\\'ias-Ch\\'avez, S. Mathur, T. Miyaji, Y. D. Mayya, Y. Krongold","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-22T17:35:45Z","title":"XMM-Newton Ultra Narrow Deep Field survey II: X-ray spectral analysis of the brightest AGN population"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.15901","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":"sha256:55f1c073a20748a5f3575ad16e8e9c7980b772ce79b6651480b22386d4edbc53","target":"record","created_at":"2026-07-05T08:35:50Z","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":"9b0b6814cfa33b426b0c2f0193a81afd7a8bbbd64ae726c955454a593d92b554","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-06-22T17:35:45Z","title_canon_sha256":"317a1c1b253d58774a45e698121c8e7d8dfb2d7b47a43f5436d471029db5f15b"},"schema_version":"1.0","source":{"id":"2406.15901","kind":"arxiv","version":1}},"canonical_sha256":"8a3c1027095c2ffb2bf7909e9555dbdf6c81fb411e69b26269096f2a7cbf301d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a3c1027095c2ffb2bf7909e9555dbdf6c81fb411e69b26269096f2a7cbf301d","first_computed_at":"2026-07-05T08:35:50.285950Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:35:50.285950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DMMPMgow3t7B/dSioLb96lfaKx+pbFPMQA18uUfRGtrWKcFZV4/63SjdOJFmjjyrgKLszrt7J1OAkfUFECNtDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:35:50.286430Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.15901","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55f1c073a20748a5f3575ad16e8e9c7980b772ce79b6651480b22386d4edbc53","sha256:5550fad4f952e99aeb9155a27424ed45a99d1683db16641537894c71f639aaea"],"state_sha256":"37c680ac74fbf300cca75a005adab5bde8b70d084d17551fc3d9e879987d6c91"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y6C689LKrSvGAAVQyC9VknvzvGueT8RPJxs37TyQmlnLDJ+1IdqlFi2PvKQ6GNQOzvGyKD/sFoGElTFgGBVFAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T22:35:45.335543Z","bundle_sha256":"28e34cc03245d9bbbdd2bd43de284f2d2858e72c4d99719a860105ad1a93ccee"}}