{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BXHDJVE2PAN5YZ7ODHLA4UPOR7","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":"283006026bcada9594d07020404de28ef302daa7a742a042b19d0171c507de88","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-03-30T22:43:43Z","title_canon_sha256":"4f0c6c31470d03d920f96717fc63b82c4f67b1a65dc77397a60a0cae6bb35d2a"},"schema_version":"1.0","source":{"id":"0903.5338","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0903.5338","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"arxiv_version","alias_value":"0903.5338v1","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0903.5338","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"pith_short_12","alias_value":"BXHDJVE2PAN5","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BXHDJVE2PAN5YZ7O","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BXHDJVE2","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:b90c6111a111e954837cc29c725382ee2695229cab17e8c6462785c4cca03a59","target":"graph","created_at":"2026-05-18T04:29:15Z","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":"Using multi-epoch Very Long Baseline Array observations, we have measured the trigonometric parallax of the weak-line T Tauri star HP Tau/G2 in Taurus. The best fit yields a distance of 161.2 $\\pm$ 0.9 pc, suggesting that the eastern portion of Taurus (where HP Tau/G2 is located) corresponds to the far side of the complex. Previous VLBA observations have shown that T Tau, to the South of the complex, is at an intermediate distance of about 147 pc, whereas the region around L1495 corresponds to the near side at roughly 130 pc. Our observations of only four sources are still too coarse to enable","authors_text":"Amy J. Mioduszewski (AOC-NRAO), Laurent Loinard (CRyA-UNAM), Luis F. Rodriguez (CRyA-UNAM), Rosa M. Torres (CRyA-UNAM)","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-03-30T22:43:43Z","title":"VLBA determination of the distance to nearby star-forming regions III. HP Tau/G2 and the three-dimensional structure of Taurus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0903.5338","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":"sha256:41cad1307a2140f3e33a44df3d8c9c490e3f46ea0155cdb30e5343fc74bc410d","target":"record","created_at":"2026-05-18T04:29:15Z","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":"283006026bcada9594d07020404de28ef302daa7a742a042b19d0171c507de88","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-03-30T22:43:43Z","title_canon_sha256":"4f0c6c31470d03d920f96717fc63b82c4f67b1a65dc77397a60a0cae6bb35d2a"},"schema_version":"1.0","source":{"id":"0903.5338","kind":"arxiv","version":1}},"canonical_sha256":"0dce34d49a781bdc67ee19d60e51ee8fd292a4baba5c7012baf398a039d49fd6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0dce34d49a781bdc67ee19d60e51ee8fd292a4baba5c7012baf398a039d49fd6","first_computed_at":"2026-05-18T04:29:15.481251Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:15.481251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OOqh0hlUocHCZ1mftGIjUmtAKWvWmQlUW0fzx8HIMjULSYLEldFwzClUbWLvGIfQdHCzk9LCJc1p2GW3LEv7Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:15.481826Z","signed_message":"canonical_sha256_bytes"},"source_id":"0903.5338","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:41cad1307a2140f3e33a44df3d8c9c490e3f46ea0155cdb30e5343fc74bc410d","sha256:b90c6111a111e954837cc29c725382ee2695229cab17e8c6462785c4cca03a59"],"state_sha256":"046e9af874a771649353b309b6e2a35e59b18afa5717e8d8a4530d534d13b9ce"}