{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:VAOLZZORNIKQTMRHIVEHWDUAWA","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":"daf5cda466493485574e2d344eaca235c0e835485702115f6219267798561005","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2025-06-09T17:55:53Z","title_canon_sha256":"121b932c44195fe448cc7fd80c6ee71a2e1ffab08124725a000ebd1dedc99877"},"schema_version":"1.0","source":{"id":"2506.07989","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.07989","created_at":"2026-07-05T11:18:36Z"},{"alias_kind":"arxiv_version","alias_value":"2506.07989v1","created_at":"2026-07-05T11:18:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.07989","created_at":"2026-07-05T11:18:36Z"},{"alias_kind":"pith_short_12","alias_value":"VAOLZZORNIKQ","created_at":"2026-07-05T11:18:36Z"},{"alias_kind":"pith_short_16","alias_value":"VAOLZZORNIKQTMRH","created_at":"2026-07-05T11:18:36Z"},{"alias_kind":"pith_short_8","alias_value":"VAOLZZOR","created_at":"2026-07-05T11:18:36Z"}],"graph_snapshots":[{"event_id":"sha256:0fbe2d37e976934ea76f7a66769d573a41656880aed674dc642a2be368748a2e","target":"graph","created_at":"2026-07-05T11:18:36Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2506.07989/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Light circling around an astrophysical black hole can spend a long time skirting its unstably bound photon orbits before escaping to infinity. To a distant observer, this orbiting light would appear as a bright ring encircling the image of the black hole. Though not yet resolved by radio-interferometric observations from the ground, this ``photon ring'' will be the target of future space-based black hole observations. Motivated by this experimental prospect, studies have sought to elucidate the theoretical connections between the photon ring -- an observable, classical effect -- and the putati","authors_text":"Alexandru Lupsasca, Philippe Spindel, Quentin Vandermiers, Raphaela Wutte, Sahaja Kanuri, St\\'ephane Detournay","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2025-06-09T17:55:53Z","title":"Photon rings in a holographic toy model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.07989","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:a8d17519702c757d9db22947c1b23ce5d0c989964b1e9eaacda5b25ca6388f1a","target":"record","created_at":"2026-07-05T11:18:36Z","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":"daf5cda466493485574e2d344eaca235c0e835485702115f6219267798561005","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2025-06-09T17:55:53Z","title_canon_sha256":"121b932c44195fe448cc7fd80c6ee71a2e1ffab08124725a000ebd1dedc99877"},"schema_version":"1.0","source":{"id":"2506.07989","kind":"arxiv","version":1}},"canonical_sha256":"a81cbce5d16a1509b22745487b0e80b02196cdff08bf62e87d53f02d0c337d2a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a81cbce5d16a1509b22745487b0e80b02196cdff08bf62e87d53f02d0c337d2a","first_computed_at":"2026-07-05T11:18:36.843944Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:18:36.843944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xMpP4MqZDzErvHCXjKlBSWzyHB0V4Zbd5mKl+1jwGhjd3CLGFSEWi1yDuC7U1/TD7t9bE/YGdut5QIQiWF9IDA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:18:36.844373Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.07989","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8d17519702c757d9db22947c1b23ce5d0c989964b1e9eaacda5b25ca6388f1a","sha256:0fbe2d37e976934ea76f7a66769d573a41656880aed674dc642a2be368748a2e"],"state_sha256":"7c50fa04ba13ce816d59b45c0e84c6413a912de42cc0646ce8fd6a2accdf9d20"}