{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:3IQ2NU2Y4UW6D4B55YS3NSQ77S","short_pith_number":"pith:3IQ2NU2Y","schema_version":"1.0","canonical_sha256":"da21a6d358e52de1f03dee25b6ca1ffc9dabd716722307bc33f708680cfc6dc5","source":{"kind":"arxiv","id":"1407.2610","version":1},"attestation_state":"computed","paper":{"title":"The Most Distant Stars in the Milky Way","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Andrew A. West, Beth Willman, Jay Strader, John J. Bochanski, Nelson Caldwell, Robyn Sanderson, Warren Brown","submitted_at":"2014-07-09T20:00:09Z","abstract_excerpt":"We report on the discovery of the most distant Milky Way (MW) stars known to date: ULAS J001535.72$+$015549.6 and ULAS J074417.48$+$253233.0. These stars were selected as M giant candidates based on their infrared and optical colors and lack of proper motions. We spectroscopically confirmed them as outer halo giants using the MMT/Red Channel spectrograph. Both stars have large estimated distances, with ULAS J001535.72$+$015549.6 at $274 \\pm 74$ kpc and ULAS J074417.48$+$253233.0 at 238 $\\pm$ 64 kpc, making them the first MW stars discovered beyond 200 kpc. ULAS J001535.72$+$015549.6 and ULAS J"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1407.2610","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-07-09T20:00:09Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"fff3a33a645f0f00862ca2dd79a5cd292fcaf829afaa6ca34f4cef9fd4c7e1aa","abstract_canon_sha256":"137569bc0c6b849e0fbb2a6a523c137610beca9f827bdacede59a556ab0d20c3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:48:00.329936Z","signature_b64":"VI56dKnJ0tnqoZUjT1uEI8cERzg2fFVlIN5tbs2Q1+5bGdfVInUTjKYYyHCfnqG6aFiLjsDpycsjMtJt7cODDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da21a6d358e52de1f03dee25b6ca1ffc9dabd716722307bc33f708680cfc6dc5","last_reissued_at":"2026-05-18T02:48:00.329309Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:48:00.329309Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Most Distant Stars in the Milky Way","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Andrew A. West, Beth Willman, Jay Strader, John J. Bochanski, Nelson Caldwell, Robyn Sanderson, Warren Brown","submitted_at":"2014-07-09T20:00:09Z","abstract_excerpt":"We report on the discovery of the most distant Milky Way (MW) stars known to date: ULAS J001535.72$+$015549.6 and ULAS J074417.48$+$253233.0. These stars were selected as M giant candidates based on their infrared and optical colors and lack of proper motions. We spectroscopically confirmed them as outer halo giants using the MMT/Red Channel spectrograph. Both stars have large estimated distances, with ULAS J001535.72$+$015549.6 at $274 \\pm 74$ kpc and ULAS J074417.48$+$253233.0 at 238 $\\pm$ 64 kpc, making them the first MW stars discovered beyond 200 kpc. ULAS J001535.72$+$015549.6 and ULAS J"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.2610","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1407.2610","created_at":"2026-05-18T02:48:00.329450+00:00"},{"alias_kind":"arxiv_version","alias_value":"1407.2610v1","created_at":"2026-05-18T02:48:00.329450+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.2610","created_at":"2026-05-18T02:48:00.329450+00:00"},{"alias_kind":"pith_short_12","alias_value":"3IQ2NU2Y4UW6","created_at":"2026-05-18T12:28:11.866339+00:00"},{"alias_kind":"pith_short_16","alias_value":"3IQ2NU2Y4UW6D4B5","created_at":"2026-05-18T12:28:11.866339+00:00"},{"alias_kind":"pith_short_8","alias_value":"3IQ2NU2Y","created_at":"2026-05-18T12:28:11.866339+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S","json":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S.json","graph_json":"https://pith.science/api/pith-number/3IQ2NU2Y4UW6D4B55YS3NSQ77S/graph.json","events_json":"https://pith.science/api/pith-number/3IQ2NU2Y4UW6D4B55YS3NSQ77S/events.json","paper":"https://pith.science/paper/3IQ2NU2Y"},"agent_actions":{"view_html":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S","download_json":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S.json","view_paper":"https://pith.science/paper/3IQ2NU2Y","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1407.2610&json=true","fetch_graph":"https://pith.science/api/pith-number/3IQ2NU2Y4UW6D4B55YS3NSQ77S/graph.json","fetch_events":"https://pith.science/api/pith-number/3IQ2NU2Y4UW6D4B55YS3NSQ77S/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S/action/storage_attestation","attest_author":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S/action/author_attestation","sign_citation":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S/action/citation_signature","submit_replication":"https://pith.science/pith/3IQ2NU2Y4UW6D4B55YS3NSQ77S/action/replication_record"}},"created_at":"2026-05-18T02:48:00.329450+00:00","updated_at":"2026-05-18T02:48:00.329450+00:00"}