{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:IXCYBPB66HY5SYOVRNRHFVQYVL","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":"b94b8fc2fac05957f4cef8508d992c8d1d2b225d22a05f6eac84aa264e5c850f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-11-06T16:03:38Z","title_canon_sha256":"069a9013289222aaf8d9a4283ce4a4d252f3c7b1351938596d9b7b1f4f4c3502"},"schema_version":"1.0","source":{"id":"0711.0842","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0711.0842","created_at":"2026-07-04T17:06:32Z"},{"alias_kind":"arxiv_version","alias_value":"0711.0842v1","created_at":"2026-07-04T17:06:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0711.0842","created_at":"2026-07-04T17:06:32Z"},{"alias_kind":"pith_short_12","alias_value":"IXCYBPB66HY5","created_at":"2026-07-04T17:06:32Z"},{"alias_kind":"pith_short_16","alias_value":"IXCYBPB66HY5SYOV","created_at":"2026-07-04T17:06:32Z"},{"alias_kind":"pith_short_8","alias_value":"IXCYBPB6","created_at":"2026-07-04T17:06:32Z"}],"graph_snapshots":[{"event_id":"sha256:722bef8dd1633901e3900ad27fad240799960a1680ca3fb85bd2fb22f234a7d5","target":"graph","created_at":"2026-07-04T17:06:32Z","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/0711.0842/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In April 2004 the first image was obtained of a planetary mass companion (now known as 2M1207 b) in orbit around a self-luminous object different from our own Sun (the young brown dwarf 2MASSW J1207334-393254, hereafter 2M1207 A). 2M1207 b probably formed via fragmentation and gravitational collapse, offering proof that such a mechanism can form bodies in the planetary mass regime. However, the predicted mass, luminosity, and radius of 2M1207 b depend on its age, distance, and other observables such as effective temperature. To refine our knowledge of the physical properties of 2M1207 b and it","authors_text":"B.Zuckerman, C. Ducourant, G. Chauvin, G.Daigne, Inseok Song, J.F. Le Campion, R. Teixeira","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-11-06T16:03:38Z","title":"An accurate distance to 2M1207Ab"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0711.0842","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":"sha256:1171ca71767b2bd00b625a4a3c3525b6577facf07bac30f42505f003ea7d9776","target":"record","created_at":"2026-07-04T17:06:32Z","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":"b94b8fc2fac05957f4cef8508d992c8d1d2b225d22a05f6eac84aa264e5c850f","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-11-06T16:03:38Z","title_canon_sha256":"069a9013289222aaf8d9a4283ce4a4d252f3c7b1351938596d9b7b1f4f4c3502"},"schema_version":"1.0","source":{"id":"0711.0842","kind":"arxiv","version":1}},"canonical_sha256":"45c580bc3ef1f1d961d58b6272d618aaf703c2e42d69069e83ef1e9c4a68d484","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45c580bc3ef1f1d961d58b6272d618aaf703c2e42d69069e83ef1e9c4a68d484","first_computed_at":"2026-07-04T17:06:32.564458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:06:32.564458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n3VZA9g1Kzw7Zn286oTDrqV9AToaIByfCNM2lh2sE+1G88BjwT0H1Jh+l0MjYRDVzJGW41RtYGu9kfYVUTdJCw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:06:32.564861Z","signed_message":"canonical_sha256_bytes"},"source_id":"0711.0842","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1171ca71767b2bd00b625a4a3c3525b6577facf07bac30f42505f003ea7d9776","sha256:722bef8dd1633901e3900ad27fad240799960a1680ca3fb85bd2fb22f234a7d5"],"state_sha256":"c07193d23904d1542b3966d6a861116a8f0a5d4ef467ccd7aada28d08d798441"}