{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:M5SRRWX5H24UQ72MENLR6YKRLC","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":"e3189e33f4b28deeb71d4fca90cb2cfe8d37ffd11e75618fd61784d9e2685ff5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-26T20:12:29Z","title_canon_sha256":"dcd6209a8c0c367648241aca7ffac69152bfb90706f98b1999217ad2c86d118d"},"schema_version":"1.0","source":{"id":"1510.07625","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.07625","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"arxiv_version","alias_value":"1510.07625v1","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07625","created_at":"2026-05-18T01:27:22Z"},{"alias_kind":"pith_short_12","alias_value":"M5SRRWX5H24U","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"M5SRRWX5H24UQ72M","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"M5SRRWX5","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:9da9cdff07a4484cfeb5c1703154e9bdf93acc967a9f91d2852b6b734c225059","target":"graph","created_at":"2026-05-18T01:27:22Z","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":"As part of our ongoing NTT SoFI survey for variability in young free-floating planets and low mass brown dwarfs, we detect significant variability in the young, free-floating planetary mass object PSO J318.5-22, likely due to rotational modulation of inhomogeneous cloud cover. A member of the 23$\\pm$3 Myr $\\beta$ Pic moving group, PSO J318.5-22 has T$_\\mathrm{eff}$ = 1160$^{+30}_{-40}$ K and a mass estimate of 8.3$\\pm$0.5 M$_{Jup}$ for a 23$\\pm$3 Myr age. PSO J318.5-22 is intermediate in mass between 51 Eri b and $\\beta$ Pic b, the two known exoplanet companions in the $\\beta$ Pic moving group","authors_text":"Beth A. Biller, Claire Baxter, Derek Homeier, Elena Manjavacas, Esther Buenzli, France Allard, Ian J.M. Crossfield, Johanna Vos, Joshua E. Schlieder, Katelyn Allers, Mariangela Bonavita, Michael C. Liu, Micka\\\"el Bonnefoy, Niall Deacon, Taisiya Kopytova, Thomas Henning, Trent Dupuy, Wolfgang Brandner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-26T20:12:29Z","title":"Variability in a Young, L/T Transition Planetary-Mass Object"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07625","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":"sha256:60a1c45b2378859f1b7f0ae708ccde6dceb299ae11a2c2c8545237719bf97cb5","target":"record","created_at":"2026-05-18T01:27:22Z","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":"e3189e33f4b28deeb71d4fca90cb2cfe8d37ffd11e75618fd61784d9e2685ff5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-10-26T20:12:29Z","title_canon_sha256":"dcd6209a8c0c367648241aca7ffac69152bfb90706f98b1999217ad2c86d118d"},"schema_version":"1.0","source":{"id":"1510.07625","kind":"arxiv","version":1}},"canonical_sha256":"676518dafd3eb9487f4c23571f6151589c49b3ceb5fb3126f40f7c33c2a8301e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"676518dafd3eb9487f4c23571f6151589c49b3ceb5fb3126f40f7c33c2a8301e","first_computed_at":"2026-05-18T01:27:22.010684Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:22.010684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gAaNDkuY0iWxEXkqSwQFMd7mk0bLE1uPSGyW9PM+YGzXnTVmMfx7YEAJnpK5q2YB4dQtZCUQhcKTI9x1rvRQCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:22.011133Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.07625","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60a1c45b2378859f1b7f0ae708ccde6dceb299ae11a2c2c8545237719bf97cb5","sha256:9da9cdff07a4484cfeb5c1703154e9bdf93acc967a9f91d2852b6b734c225059"],"state_sha256":"1c02ad88511f20542d6d8ad20d9302bd90c7432709fcecc6e73ea109dab04a98"}