{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:54UQPNA3BGMCCYZOJVCOY4TCVY","short_pith_number":"pith:54UQPNA3","canonical_record":{"source":{"id":"2505.09779","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-14T20:17:45Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"6725a0c6a1fc0fc97bf4ec0b7c89689ccab8c6873abe352a3bc24627ab10ea0c","abstract_canon_sha256":"1128c954e8501c401e9720bccdf4356ea13336260163e31f019284645ed45108"},"schema_version":"1.0"},"canonical_sha256":"ef2907b41b099821632e4d44ec7262ae24df6452dd1003ad79534777fd6fcc77","source":{"kind":"arxiv","id":"2505.09779","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.09779","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"arxiv_version","alias_value":"2505.09779v1","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.09779","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"pith_short_12","alias_value":"54UQPNA3BGMC","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"pith_short_16","alias_value":"54UQPNA3BGMCCYZO","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"pith_short_8","alias_value":"54UQPNA3","created_at":"2026-07-05T11:03:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:54UQPNA3BGMCCYZOJVCOY4TCVY","target":"record","payload":{"canonical_record":{"source":{"id":"2505.09779","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-14T20:17:45Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"6725a0c6a1fc0fc97bf4ec0b7c89689ccab8c6873abe352a3bc24627ab10ea0c","abstract_canon_sha256":"1128c954e8501c401e9720bccdf4356ea13336260163e31f019284645ed45108"},"schema_version":"1.0"},"canonical_sha256":"ef2907b41b099821632e4d44ec7262ae24df6452dd1003ad79534777fd6fcc77","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:03:28.328387Z","signature_b64":"jeSi4QDi97sUxD6S41QsQwivyzvavNoPCqH39OQoqY3O9kp7UblHpwE4kApP+8RhhNRXksrz4gEW+QyiUQmHBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ef2907b41b099821632e4d44ec7262ae24df6452dd1003ad79534777fd6fcc77","last_reissued_at":"2026-07-05T11:03:28.327878Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:03:28.327878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.09779","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":"2026-07-05T11:03:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vk84aGO4flKcfwnEHJehGjvpc7YGFbyfQE750+mrhWchr9PSGFWa6QuU3iaRyO79ThL7UFqI54kfi3qaLysdAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T16:33:36.944843Z"},"content_sha256":"0822d568dfcec399e88fd62e5023cdab8635117a9ae83ec457389931056ed61e","schema_version":"1.0","event_id":"sha256:0822d568dfcec399e88fd62e5023cdab8635117a9ae83ec457389931056ed61e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:54UQPNA3BGMCCYZOJVCOY4TCVY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring Quasar Variability With ZTF at 0<z<3: A Universal Relation with Eddington Ratio","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Edward M. Cackett, Hygor B. Gon\\c{c}alves, Michael Eracleous, Swayamtrupta Panda, Thaisa Storchi Bergmann","submitted_at":"2025-05-14T20:17:45Z","abstract_excerpt":"Quasars, powered by accretion onto supermassive black holes (SMBHs), exhibit significant variability, offering insights into the physics of accretion and the properties of the central engines. In this study, we analyze photometric variability and its correlation with key quasar properties, including black hole mass ($M_{\\mathrm{BH}}$) and nuclear luminosities, using 915 quasars with $0\\leq z<3.0$ from the AQMES sample monitored within SDSS-V. Variability metrics were derived from approximately 6-year light curves provided by the Zwicky Transient Facility -- ZTF, while SMBH masses and luminosit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.09779","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/2505.09779/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":"2026-07-05T11:03:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pv85HJ3RYx8Kh/7Fj/rUnFGKGC+6xVqfpfjAAFSsXLMKdA3W2yrbjOpVbwdf5mbkRkvQZErZKMDFuh/hzOSKAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T16:33:36.945397Z"},"content_sha256":"66cade7416cdc2552ada33623d1b0c3b90a6ca1643ca533b1f14ec8a4992df52","schema_version":"1.0","event_id":"sha256:66cade7416cdc2552ada33623d1b0c3b90a6ca1643ca533b1f14ec8a4992df52"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/54UQPNA3BGMCCYZOJVCOY4TCVY/bundle.json","state_url":"https://pith.science/pith/54UQPNA3BGMCCYZOJVCOY4TCVY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/54UQPNA3BGMCCYZOJVCOY4TCVY/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":"2026-08-21T16:33:36Z","links":{"resolver":"https://pith.science/pith/54UQPNA3BGMCCYZOJVCOY4TCVY","bundle":"https://pith.science/pith/54UQPNA3BGMCCYZOJVCOY4TCVY/bundle.json","state":"https://pith.science/pith/54UQPNA3BGMCCYZOJVCOY4TCVY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/54UQPNA3BGMCCYZOJVCOY4TCVY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:54UQPNA3BGMCCYZOJVCOY4TCVY","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":"1128c954e8501c401e9720bccdf4356ea13336260163e31f019284645ed45108","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-14T20:17:45Z","title_canon_sha256":"6725a0c6a1fc0fc97bf4ec0b7c89689ccab8c6873abe352a3bc24627ab10ea0c"},"schema_version":"1.0","source":{"id":"2505.09779","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.09779","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"arxiv_version","alias_value":"2505.09779v1","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.09779","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"pith_short_12","alias_value":"54UQPNA3BGMC","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"pith_short_16","alias_value":"54UQPNA3BGMCCYZO","created_at":"2026-07-05T11:03:28Z"},{"alias_kind":"pith_short_8","alias_value":"54UQPNA3","created_at":"2026-07-05T11:03:28Z"}],"graph_snapshots":[{"event_id":"sha256:66cade7416cdc2552ada33623d1b0c3b90a6ca1643ca533b1f14ec8a4992df52","target":"graph","created_at":"2026-07-05T11:03:28Z","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/2505.09779/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quasars, powered by accretion onto supermassive black holes (SMBHs), exhibit significant variability, offering insights into the physics of accretion and the properties of the central engines. In this study, we analyze photometric variability and its correlation with key quasar properties, including black hole mass ($M_{\\mathrm{BH}}$) and nuclear luminosities, using 915 quasars with $0\\leq z<3.0$ from the AQMES sample monitored within SDSS-V. Variability metrics were derived from approximately 6-year light curves provided by the Zwicky Transient Facility -- ZTF, while SMBH masses and luminosit","authors_text":"Edward M. Cackett, Hygor B. Gon\\c{c}alves, Michael Eracleous, Swayamtrupta Panda, Thaisa Storchi Bergmann","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-14T20:17:45Z","title":"Exploring Quasar Variability With ZTF at 0<z<3: A Universal Relation with Eddington Ratio"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.09779","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":"sha256:0822d568dfcec399e88fd62e5023cdab8635117a9ae83ec457389931056ed61e","target":"record","created_at":"2026-07-05T11:03:28Z","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":"1128c954e8501c401e9720bccdf4356ea13336260163e31f019284645ed45108","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-14T20:17:45Z","title_canon_sha256":"6725a0c6a1fc0fc97bf4ec0b7c89689ccab8c6873abe352a3bc24627ab10ea0c"},"schema_version":"1.0","source":{"id":"2505.09779","kind":"arxiv","version":1}},"canonical_sha256":"ef2907b41b099821632e4d44ec7262ae24df6452dd1003ad79534777fd6fcc77","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ef2907b41b099821632e4d44ec7262ae24df6452dd1003ad79534777fd6fcc77","first_computed_at":"2026-07-05T11:03:28.327878Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:03:28.327878Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jeSi4QDi97sUxD6S41QsQwivyzvavNoPCqH39OQoqY3O9kp7UblHpwE4kApP+8RhhNRXksrz4gEW+QyiUQmHBw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:03:28.328387Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.09779","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0822d568dfcec399e88fd62e5023cdab8635117a9ae83ec457389931056ed61e","sha256:66cade7416cdc2552ada33623d1b0c3b90a6ca1643ca533b1f14ec8a4992df52"],"state_sha256":"8bda54c0c409cc4d9b8077e79b325af21a8360fafe67c18a256185ab08df77fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yCZGC04eEQZysgwoIxlvGHa45ICZ2sp6SvhwOQ0aTxg6MCbphHsFYkbSlA6U5gXDozi/m1cs0AGus35iPfikDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T16:33:36.950611Z","bundle_sha256":"ddd7fd41d8b8b653799129559a820d0db8c9be37b6c6933555248659b0c12e5f"}}