{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:STCAITPWJE672YDG4GWCVNK2ZF","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":"aeff2475dc6f1e31baa3615c7a1c0b2e8449a67f880851100359c8caafcee976","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-08-02T22:03:10Z","title_canon_sha256":"f7058835329eacf34c73d64feca9f03b31747061ff864a496a9abc691318844c"},"schema_version":"1.0","source":{"id":"1308.0629","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.0629","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"arxiv_version","alias_value":"1308.0629v1","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.0629","created_at":"2026-05-18T01:48:24Z"},{"alias_kind":"pith_short_12","alias_value":"STCAITPWJE67","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"STCAITPWJE672YDG","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"STCAITPW","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:a5e19fff9b4c206683a399ea9baab1a0b28530da08b2fae02f1a04a2d3b1a73a","target":"graph","created_at":"2026-05-18T01:48:24Z","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":"PTFO 8-8695b represents the first transiting exoplanet candidate orbiting a pre-main-sequence star. We find that the unusual lightcurve shapes of PTFO 8-8695 can be explained by transits of a planet across an oblate, gravity-darkened stellar disk. We simultaneously and self-consistently fit two separate lightcurves observed in 2009 December and 2010 December. Our two self-consistent fits yield M_p = 3.0 M_Jup and M_p = 3.6 M_Jup for assumed stellar masses of M_* = 0.34 M_Sun and M_* = 0.44 M_Sun respectively. The two fits have precession periods of 293 days and 581 days. These mass determinati","authors_text":"Brian K. Jackson, David R. Ciardi, Jason W. Barnes, Jonathan J. Fortney, Julian C. van Eyken","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-08-02T22:03:10Z","title":"Measurement of Spin-Orbit Misalignment and Nodal Precession for the Planet around Pre-Main-Sequence Star PTFO 8-8695 From Gravity Darkening"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.0629","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":"sha256:56c65916231fdea30212883cf080996bdcd784f839022aac473047aa418d34bd","target":"record","created_at":"2026-05-18T01:48:24Z","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":"aeff2475dc6f1e31baa3615c7a1c0b2e8449a67f880851100359c8caafcee976","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2013-08-02T22:03:10Z","title_canon_sha256":"f7058835329eacf34c73d64feca9f03b31747061ff864a496a9abc691318844c"},"schema_version":"1.0","source":{"id":"1308.0629","kind":"arxiv","version":1}},"canonical_sha256":"94c4044df6493dfd6066e1ac2ab55ac96eeda8796dce98e5a697d8a90e2c9654","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94c4044df6493dfd6066e1ac2ab55ac96eeda8796dce98e5a697d8a90e2c9654","first_computed_at":"2026-05-18T01:48:24.361243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:24.361243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hQgFlINM60NgqWKvANlkBKqFk/WGYlvpSfp/IGTtQftFY25Kg1gVa1PICph61G/EH2SzUplMDc/SOqaoWx3ADg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:24.361972Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.0629","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56c65916231fdea30212883cf080996bdcd784f839022aac473047aa418d34bd","sha256:a5e19fff9b4c206683a399ea9baab1a0b28530da08b2fae02f1a04a2d3b1a73a"],"state_sha256":"157f076629cfe4d851e5f78d7408bb8c1222e61e27a2cd1b0622a72c776cae19"}