{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:VIGACMO6Q2XDI4GPCB4R2CLPU4","short_pith_number":"pith:VIGACMO6","canonical_record":{"source":{"id":"1702.07210","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-23T13:44:44Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"45b99e2e54a86804155a816736103bbdad66eca4450626faec8dc0687832a815","abstract_canon_sha256":"c396d6e3868f39180612066f846636392828e86d2f1faef4677184a03167831a"},"schema_version":"1.0"},"canonical_sha256":"aa0c0131de86ae3470cf10791d096fa73713c28b2348ed37c1812729e18c1776","source":{"kind":"arxiv","id":"1702.07210","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.07210","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"arxiv_version","alias_value":"1702.07210v1","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.07210","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"pith_short_12","alias_value":"VIGACMO6Q2XD","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VIGACMO6Q2XDI4GP","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VIGACMO6","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:VIGACMO6Q2XDI4GPCB4R2CLPU4","target":"record","payload":{"canonical_record":{"source":{"id":"1702.07210","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-23T13:44:44Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"45b99e2e54a86804155a816736103bbdad66eca4450626faec8dc0687832a815","abstract_canon_sha256":"c396d6e3868f39180612066f846636392828e86d2f1faef4677184a03167831a"},"schema_version":"1.0"},"canonical_sha256":"aa0c0131de86ae3470cf10791d096fa73713c28b2348ed37c1812729e18c1776","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:36.825519Z","signature_b64":"aR9pVFN9omzLDVd+BHS/fLBssX23+ibPQFCKCZIA3NAILN8wPXvZYu1o3vq+fNu2eb2zCU1UFYVs8zrNNravCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa0c0131de86ae3470cf10791d096fa73713c28b2348ed37c1812729e18c1776","last_reissued_at":"2026-05-18T00:41:36.824840Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:36.824840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.07210","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":"2026-05-18T00:41:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1IEge/pzrzEWUQ7PbDjHhi/PfYHXZJ5fJ0e5vT6+v1t48U1/DnC+AoxXIqBA3XqMSNQgmxxq2BICohBHsKiyCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:00:32.465396Z"},"content_sha256":"8d21ab7c6f9d0be0c7a57a297ecefc2af3e557a74aaa853310129e7e83fcdbd4","schema_version":"1.0","event_id":"sha256:8d21ab7c6f9d0be0c7a57a297ecefc2af3e557a74aaa853310129e7e83fcdbd4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:VIGACMO6Q2XDI4GPCB4R2CLPU4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Periodic optical variability of AGN","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"E. Bon, N. Bon, P. Marziani","submitted_at":"2017-02-23T13:44:44Z","abstract_excerpt":"Here we present the evidence for periodicity of an optical emission detected in several AGN. Significant periodicity is found in light curves and radial velocity curves. We discuss possible mechanisms that could produce such periodic variability and their implications. The results are consistent with possible detection of the orbital motion in proximity of the AGN central supermassive black holes."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.07210","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":"2026-05-18T00:41:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m/txc4BQ1pJQ5hsnyp3fQDgwjqzdRuQZnzCY5FNd43OD5wvNZQYG8XqZ+9DWC0fw9sViMVR7W5+L4dFhYg0wAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:00:32.466035Z"},"content_sha256":"3c297a09b305844b7a60518b079f98b90f0ac4d20ab23574a993a0dd1bc73bfc","schema_version":"1.0","event_id":"sha256:3c297a09b305844b7a60518b079f98b90f0ac4d20ab23574a993a0dd1bc73bfc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VIGACMO6Q2XDI4GPCB4R2CLPU4/bundle.json","state_url":"https://pith.science/pith/VIGACMO6Q2XDI4GPCB4R2CLPU4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VIGACMO6Q2XDI4GPCB4R2CLPU4/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":"2026-05-26T11:00:32Z","links":{"resolver":"https://pith.science/pith/VIGACMO6Q2XDI4GPCB4R2CLPU4","bundle":"https://pith.science/pith/VIGACMO6Q2XDI4GPCB4R2CLPU4/bundle.json","state":"https://pith.science/pith/VIGACMO6Q2XDI4GPCB4R2CLPU4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VIGACMO6Q2XDI4GPCB4R2CLPU4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:VIGACMO6Q2XDI4GPCB4R2CLPU4","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":"c396d6e3868f39180612066f846636392828e86d2f1faef4677184a03167831a","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-23T13:44:44Z","title_canon_sha256":"45b99e2e54a86804155a816736103bbdad66eca4450626faec8dc0687832a815"},"schema_version":"1.0","source":{"id":"1702.07210","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.07210","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"arxiv_version","alias_value":"1702.07210v1","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.07210","created_at":"2026-05-18T00:41:36Z"},{"alias_kind":"pith_short_12","alias_value":"VIGACMO6Q2XD","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VIGACMO6Q2XDI4GP","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VIGACMO6","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:3c297a09b305844b7a60518b079f98b90f0ac4d20ab23574a993a0dd1bc73bfc","target":"graph","created_at":"2026-05-18T00:41:36Z","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":"Here we present the evidence for periodicity of an optical emission detected in several AGN. Significant periodicity is found in light curves and radial velocity curves. We discuss possible mechanisms that could produce such periodic variability and their implications. The results are consistent with possible detection of the orbital motion in proximity of the AGN central supermassive black holes.","authors_text":"E. Bon, N. Bon, P. Marziani","cross_cats":["astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-23T13:44:44Z","title":"Periodic optical variability of AGN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.07210","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":"sha256:8d21ab7c6f9d0be0c7a57a297ecefc2af3e557a74aaa853310129e7e83fcdbd4","target":"record","created_at":"2026-05-18T00:41:36Z","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":"c396d6e3868f39180612066f846636392828e86d2f1faef4677184a03167831a","cross_cats_sorted":["astro-ph.HE"],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-23T13:44:44Z","title_canon_sha256":"45b99e2e54a86804155a816736103bbdad66eca4450626faec8dc0687832a815"},"schema_version":"1.0","source":{"id":"1702.07210","kind":"arxiv","version":1}},"canonical_sha256":"aa0c0131de86ae3470cf10791d096fa73713c28b2348ed37c1812729e18c1776","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa0c0131de86ae3470cf10791d096fa73713c28b2348ed37c1812729e18c1776","first_computed_at":"2026-05-18T00:41:36.824840Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:36.824840Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aR9pVFN9omzLDVd+BHS/fLBssX23+ibPQFCKCZIA3NAILN8wPXvZYu1o3vq+fNu2eb2zCU1UFYVs8zrNNravCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:36.825519Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.07210","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d21ab7c6f9d0be0c7a57a297ecefc2af3e557a74aaa853310129e7e83fcdbd4","sha256:3c297a09b305844b7a60518b079f98b90f0ac4d20ab23574a993a0dd1bc73bfc"],"state_sha256":"0a0d50a92dcbfb2630ef566208b9b8a58d74dd3fa3c23faaa751a34e11415a63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b3CwMaSzk+7kWeVaW32cGS0MicOu/1/tR1gg3sdIPne5GHrYQ/FSh+WT0wcJTb+EmhKG4kvstfPnkuozriZBBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T11:00:32.469431Z","bundle_sha256":"98538537d26f021340f80e90ea0db46b7ac87a2b9c703146dd3ad5a898753f86"}}