{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CKJQO7ISVODMVCU67W5LU4AYQC","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":"7e3a356bbc052530ef3216de52c574bea09c4d905babb6cd5d6709afa58e4025","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-12-05T20:30:00Z","title_canon_sha256":"d70f2627ff109d0629f54f1bd3dc8f2a2c0ea404b2b9673cb1da08e1e8a4b877"},"schema_version":"1.0","source":{"id":"1712.01911","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.01911","created_at":"2026-05-18T00:24:14Z"},{"alias_kind":"arxiv_version","alias_value":"1712.01911v1","created_at":"2026-05-18T00:24:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.01911","created_at":"2026-05-18T00:24:14Z"},{"alias_kind":"pith_short_12","alias_value":"CKJQO7ISVODM","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CKJQO7ISVODMVCU6","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CKJQO7IS","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:c286acad7853f216d2a5e93bf7f45360b83726bd6b7919be1f24d8b4e2ab4ce7","target":"graph","created_at":"2026-05-18T00:24:14Z","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":"TRAPPIST-1 is an ultracool dwarf star transited by seven Earth-sized planets, for which thorough characterization of atmospheric properties, surface conditions encompassing habitability and internal compositions is possible with current and next generation telescopes. Accurate modeling of the star is essential to achieve this goal. We aim to obtain updated stellar parameters for TRAPPIST- 1 based on new measurements and evolutionary models, compared to those used in discovery studies. We present a new measurement for the parallax of TRAPPIST-1, 82.4 $\\pm$ 0.8 mas, based on 188 epochs of observ","authors_text":"Adam J. Burgasser, Amaury H.M.J. Triaud, Artem Burdanov, Brice-Olivier Demory, Catarina S. Fernandes, Didier Queloz, Emmanuel Jehin, Jean Manfroid, Julien de Wit, Laetitia Delrez, Micha\\\"el Gillon, Richard Scuflaire, Valerie van Grootel","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-12-05T20:30:00Z","title":"Stellar parameters for TRAPPIST-1"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.01911","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:a2dd6c95971d81b32cc86b8c0adeaccf1d9fb7135ca97c2b0493036b57a22be4","target":"record","created_at":"2026-05-18T00:24:14Z","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":"7e3a356bbc052530ef3216de52c574bea09c4d905babb6cd5d6709afa58e4025","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-12-05T20:30:00Z","title_canon_sha256":"d70f2627ff109d0629f54f1bd3dc8f2a2c0ea404b2b9673cb1da08e1e8a4b877"},"schema_version":"1.0","source":{"id":"1712.01911","kind":"arxiv","version":1}},"canonical_sha256":"1293077d12ab86ca8a9efdbaba701880b489e553bd2d78ac6f7681374ddec189","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1293077d12ab86ca8a9efdbaba701880b489e553bd2d78ac6f7681374ddec189","first_computed_at":"2026-05-18T00:24:14.992729Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:14.992729Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CxJs9zwe+h3PZPs16D6XKg+ETn5qQtvTmw/sU5K49+a4dmg11D3zeVAHJjxabgvKnLiEhl8ILu6PJGNCHx59Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:14.993149Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.01911","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2dd6c95971d81b32cc86b8c0adeaccf1d9fb7135ca97c2b0493036b57a22be4","sha256:c286acad7853f216d2a5e93bf7f45360b83726bd6b7919be1f24d8b4e2ab4ce7"],"state_sha256":"8089db2a475e2599717a551ff272918211fdae06747f2cade9ab6aab2f032034"}