{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:KCITJGN6LEL3ZW3DTTJCQFG7KJ","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":"69892c92488a3864dab8735d2407ff4e16cdc9ebf73e1603c27858c22172c328","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-30T20:00:01Z","title_canon_sha256":"b497bd6be7d3ef1c1175939057961c51f3af995f57e4df98f0bd94ea4c1a2eb6"},"schema_version":"1.0","source":{"id":"1003.5911","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.5911","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"arxiv_version","alias_value":"1003.5911v1","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.5911","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"pith_short_12","alias_value":"KCITJGN6LEL3","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"KCITJGN6LEL3ZW3D","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"KCITJGN6","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:12418d6bb96e8c260c504bcd1bca94346acb426913890415d847f9b3990f4c0b","target":"graph","created_at":"2026-05-18T02:08:15Z","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":"Here we report WFPC2 observations of the Quaoar-Weywot Kuiper belt binary. From these observations we find that Weywot is on an elliptical orbit with eccentricity of 0.14 {\\pm} 0.04, period of 12.438 {\\pm} 0.005 days, and a semi-major axis of 1.45 {\\pm} 0.08 {\\times} 104 km. The orbit reveals a surpsingly high Quaoar-Weywot system mass of 1.6{\\pm}0.3{\\times}10^21 kg. Using the surface properties of the Uranian and Neptunian satellites as a proxy for Quaoar's surface, we reanalyze the size estimate from Brown and Trujillo (2004). We find, from a mean of available published size estimates, a dia","authors_text":"M. E. Brown, W. C. Fraser","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-30T20:00:01Z","title":"Quaoar: A Rock in the Kuiper belt"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.5911","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":"sha256:89f782679ad2df0287ad6ba6b1b5be96afc02f04e555274c6f375c29e0600bfb","target":"record","created_at":"2026-05-18T02:08:15Z","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":"69892c92488a3864dab8735d2407ff4e16cdc9ebf73e1603c27858c22172c328","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2010-03-30T20:00:01Z","title_canon_sha256":"b497bd6be7d3ef1c1175939057961c51f3af995f57e4df98f0bd94ea4c1a2eb6"},"schema_version":"1.0","source":{"id":"1003.5911","kind":"arxiv","version":1}},"canonical_sha256":"50913499be5917bcdb639cd22814df52792e1332bfa04a150092d346248fb308","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50913499be5917bcdb639cd22814df52792e1332bfa04a150092d346248fb308","first_computed_at":"2026-05-18T02:08:15.631218Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:15.631218Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xPIYpOd4i5f3UYpU0l4Q0XZQFz3A/MZP2LSUqTJWV4QHZTbFyJJ5SJ+lqhXUPnydr+HyZ+wysNNivX3nNb2nAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:15.631629Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.5911","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:89f782679ad2df0287ad6ba6b1b5be96afc02f04e555274c6f375c29e0600bfb","sha256:12418d6bb96e8c260c504bcd1bca94346acb426913890415d847f9b3990f4c0b"],"state_sha256":"7e2f77c22dcadd1f432060ed6bb4717c06e7af558282ad1dd4741af1c8058a4e"}