{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JJVENQBLQYGGRHCK35YKESY6GF","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":"f7173fb939743630b905574f318b9af29df59ce90501732d268c67d12fccb09d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-11T20:00:04Z","title_canon_sha256":"80c4b3c49a0d89fd8ed800e3d793a2c162b7ffbb6e0d79f8a23029ae21e031ea"},"schema_version":"1.0","source":{"id":"1307.3254","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.3254","created_at":"2026-05-18T01:48:51Z"},{"alias_kind":"arxiv_version","alias_value":"1307.3254v1","created_at":"2026-05-18T01:48:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3254","created_at":"2026-05-18T01:48:51Z"},{"alias_kind":"pith_short_12","alias_value":"JJVENQBLQYGG","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JJVENQBLQYGGRHCK","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JJVENQBL","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:c653a6fae75d4ef5a4bc1d73e3d8e502296e8ca40503e40a24c38516574bebe1","target":"graph","created_at":"2026-05-18T01:48:51Z","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":"We present three complete seasons and two half-seasons of SDSS r-band photometry of the gravitationally lensed quasar SBS 0909+532 from the U.S. Naval Observatory, as well as two seasons each of SDSS g-band and r-band monitoring from the Liverpool Robotic Telescope. Using Monte Carlo simulations to simultaneously measure the system's time delay and model the r-band microlensing variability, we confirm and significantly refine the precision of the system's time delay to \\Delta t_{AB} = 50^{+2}_{-4} days, where the stated uncertainties represent the bounds of the formal 1\\sigma\\ confidence inter","authors_text":"Chelsea L. MacLeod, Christopher W. Morgan, C. S. Kochanek, Emilio E. Falco, Hugh C. Harris, Laura J. Hainline, L. J. Goicoechea, Trudy Tilleman, V. N. Shalyapin, Zachary D. Landaal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-11T20:00:04Z","title":"Time Delay and Accretion Disk Size Measurements in the Lensed Quasar SBS 0909+532 from Multiwavelength Microlensing Analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3254","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":"sha256:883e1eabc9d6b79b073b160a47d28fd85f3a4555a150554516b4b0e1ccdf4bdd","target":"record","created_at":"2026-05-18T01:48:51Z","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":"f7173fb939743630b905574f318b9af29df59ce90501732d268c67d12fccb09d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-07-11T20:00:04Z","title_canon_sha256":"80c4b3c49a0d89fd8ed800e3d793a2c162b7ffbb6e0d79f8a23029ae21e031ea"},"schema_version":"1.0","source":{"id":"1307.3254","kind":"arxiv","version":1}},"canonical_sha256":"4a6a46c02b860c689c4adf70a24b1e31752af9adc2f2568ca03764f78be79845","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a6a46c02b860c689c4adf70a24b1e31752af9adc2f2568ca03764f78be79845","first_computed_at":"2026-05-18T01:48:51.421299Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:51.421299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"atdY8oHBng+RYz27eUhTodAPJKB/1bpwI1pZ4QhViyqumoMfNbHGqcRm2qZSmoFFCgqNOALbE0O4+9hKYmpZDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:51.422113Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.3254","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:883e1eabc9d6b79b073b160a47d28fd85f3a4555a150554516b4b0e1ccdf4bdd","sha256:c653a6fae75d4ef5a4bc1d73e3d8e502296e8ca40503e40a24c38516574bebe1"],"state_sha256":"a55a0854d571f988da9839c06548b5c8246a085463e8c0a351b5ad5fdeac25c3"}