{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:NNTBQFQCE5J5RNMBCJ4TVYRUDK","short_pith_number":"pith:NNTBQFQC","canonical_record":{"source":{"id":"1908.03720","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-10T09:51:19Z","cross_cats_sorted":[],"title_canon_sha256":"28b276e42aaf4bb10445acf1121381c1b070d675adf33c22830591c74c440b2a","abstract_canon_sha256":"e960197db876c81238cd8f6f7d8f6d8a541bb6ecacd764cff3a0d8b1502c803e"},"schema_version":"1.0"},"canonical_sha256":"6b661816022753d8b58112793ae2341ab59b0f6f7057b196436150c124453e5d","source":{"kind":"arxiv","id":"1908.03720","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03720","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03720v1","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03720","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"pith_short_12","alias_value":"NNTBQFQCE5J5","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"pith_short_16","alias_value":"NNTBQFQCE5J5RNMB","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"pith_short_8","alias_value":"NNTBQFQC","created_at":"2026-07-05T00:06:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:NNTBQFQCE5J5RNMBCJ4TVYRUDK","target":"record","payload":{"canonical_record":{"source":{"id":"1908.03720","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-10T09:51:19Z","cross_cats_sorted":[],"title_canon_sha256":"28b276e42aaf4bb10445acf1121381c1b070d675adf33c22830591c74c440b2a","abstract_canon_sha256":"e960197db876c81238cd8f6f7d8f6d8a541bb6ecacd764cff3a0d8b1502c803e"},"schema_version":"1.0"},"canonical_sha256":"6b661816022753d8b58112793ae2341ab59b0f6f7057b196436150c124453e5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:06:53.190766Z","signature_b64":"G8KBmF4yr9PsxDTq8Scd7Z/LRAx7ZlNFAlNnI2QthDDqQFhWWkqL3HcQyUugdAmMexKfXvJRV3XCAp7te0GeAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b661816022753d8b58112793ae2341ab59b0f6f7057b196436150c124453e5d","last_reissued_at":"2026-07-05T00:06:53.190401Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:06:53.190401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.03720","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":"2026-07-05T00:06:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XiAm6hcqcF9Cz/oiZoDn+uaDsd8N1XAMsocFie+zYiWBwmidLbwBlN9bRaIgCe1Ry4YCzA7U2T1EMxjU9yURCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T05:06:49.172199Z"},"content_sha256":"b2fe2863ebb9b6278023cf1d9a9cf9ad9291ce6f8930e2a45ef37513ebcdaaea","schema_version":"1.0","event_id":"sha256:b2fe2863ebb9b6278023cf1d9a9cf9ad9291ce6f8930e2a45ef37513ebcdaaea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:NNTBQFQCE5J5RNMBCJ4TVYRUDK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Spectral Energy Distributions of Active Galactic Nuclei","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"C. Ricci, H. Landt, K. J. Duncan, M. J. I. Brown, M. Kirk, M. Salvato, N. Kamraj, T. Ananna","submitted_at":"2019-08-10T09:51:19Z","abstract_excerpt":"We present spectral energy distributions (SEDs) of 41 active galactic nuclei, derived from multiwavelength photometry and archival spectroscopy. All of the SEDs span at least 0.09 to 30 micron, but in some instances wavelength coverage extends into the X-ray, far-infrared and radio. For some AGNs we have fitted the measured far-infrared photometry with greybody models, while radio flux density measurements have been approximated by power-laws or polynomials. We have been able to fill some of the gaps in the spectral coverage using interpolation or extrapolation of simple models. In addition to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03720","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/1908.03720/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":"2026-07-05T00:06:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ebSUZVBW+hhJzmWcub4a3CSEgGHTFAO47y5zOfCsNCliIOqnvXG7VPvqyr2xpSPolw3AlnXhATxouaX0xfa0CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T05:06:49.172748Z"},"content_sha256":"98915a3069b9fefc1834ff5189b8ffa4175a822185f4074a154888b368f1d086","schema_version":"1.0","event_id":"sha256:98915a3069b9fefc1834ff5189b8ffa4175a822185f4074a154888b368f1d086"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NNTBQFQCE5J5RNMBCJ4TVYRUDK/bundle.json","state_url":"https://pith.science/pith/NNTBQFQCE5J5RNMBCJ4TVYRUDK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NNTBQFQCE5J5RNMBCJ4TVYRUDK/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":"2026-08-05T05:06:49Z","links":{"resolver":"https://pith.science/pith/NNTBQFQCE5J5RNMBCJ4TVYRUDK","bundle":"https://pith.science/pith/NNTBQFQCE5J5RNMBCJ4TVYRUDK/bundle.json","state":"https://pith.science/pith/NNTBQFQCE5J5RNMBCJ4TVYRUDK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NNTBQFQCE5J5RNMBCJ4TVYRUDK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:NNTBQFQCE5J5RNMBCJ4TVYRUDK","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":"e960197db876c81238cd8f6f7d8f6d8a541bb6ecacd764cff3a0d8b1502c803e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-10T09:51:19Z","title_canon_sha256":"28b276e42aaf4bb10445acf1121381c1b070d675adf33c22830591c74c440b2a"},"schema_version":"1.0","source":{"id":"1908.03720","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03720","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03720v1","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03720","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"pith_short_12","alias_value":"NNTBQFQCE5J5","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"pith_short_16","alias_value":"NNTBQFQCE5J5RNMB","created_at":"2026-07-05T00:06:53Z"},{"alias_kind":"pith_short_8","alias_value":"NNTBQFQC","created_at":"2026-07-05T00:06:53Z"}],"graph_snapshots":[{"event_id":"sha256:98915a3069b9fefc1834ff5189b8ffa4175a822185f4074a154888b368f1d086","target":"graph","created_at":"2026-07-05T00:06:53Z","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/1908.03720/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present spectral energy distributions (SEDs) of 41 active galactic nuclei, derived from multiwavelength photometry and archival spectroscopy. All of the SEDs span at least 0.09 to 30 micron, but in some instances wavelength coverage extends into the X-ray, far-infrared and radio. For some AGNs we have fitted the measured far-infrared photometry with greybody models, while radio flux density measurements have been approximated by power-laws or polynomials. We have been able to fill some of the gaps in the spectral coverage using interpolation or extrapolation of simple models. In addition to","authors_text":"C. Ricci, H. Landt, K. J. Duncan, M. J. I. Brown, M. Kirk, M. Salvato, N. Kamraj, T. Ananna","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-10T09:51:19Z","title":"The Spectral Energy Distributions of Active Galactic Nuclei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03720","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:b2fe2863ebb9b6278023cf1d9a9cf9ad9291ce6f8930e2a45ef37513ebcdaaea","target":"record","created_at":"2026-07-05T00:06:53Z","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":"e960197db876c81238cd8f6f7d8f6d8a541bb6ecacd764cff3a0d8b1502c803e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-08-10T09:51:19Z","title_canon_sha256":"28b276e42aaf4bb10445acf1121381c1b070d675adf33c22830591c74c440b2a"},"schema_version":"1.0","source":{"id":"1908.03720","kind":"arxiv","version":1}},"canonical_sha256":"6b661816022753d8b58112793ae2341ab59b0f6f7057b196436150c124453e5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b661816022753d8b58112793ae2341ab59b0f6f7057b196436150c124453e5d","first_computed_at":"2026-07-05T00:06:53.190401Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:06:53.190401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G8KBmF4yr9PsxDTq8Scd7Z/LRAx7ZlNFAlNnI2QthDDqQFhWWkqL3HcQyUugdAmMexKfXvJRV3XCAp7te0GeAA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:06:53.190766Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.03720","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b2fe2863ebb9b6278023cf1d9a9cf9ad9291ce6f8930e2a45ef37513ebcdaaea","sha256:98915a3069b9fefc1834ff5189b8ffa4175a822185f4074a154888b368f1d086"],"state_sha256":"ef31ac70503b5d78fc4be08d3ae7c23f5149092f631a21b554876f1c7b2618cc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RXq5HozltzBPrRw4XLW3/LRTMYro7Um+MNCpbLfgDzAb0uXEJoP2L6Efmjp2oB7PWreoh8tJ/gl7JEtRjuI2Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T05:06:49.178499Z","bundle_sha256":"44e65abd4096788fad36048a6da598a2f19d99aa9b4ac8a48ef7c9c626445fb2"}}