{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:5G4ISJQDIUYYXQ7QHDCMR7VEQL","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":"35d83d94510929cdf02f4dda180989ddc782f75b01563ddb41388c6a9ab90e81","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-01-30T16:29:41Z","title_canon_sha256":"d057691046ea8d9bf8f313196b0e8baa3821f238e4e287f7c116984af1999b35"},"schema_version":"1.0","source":{"id":"1501.07824","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.07824","created_at":"2026-05-18T01:32:10Z"},{"alias_kind":"arxiv_version","alias_value":"1501.07824v1","created_at":"2026-05-18T01:32:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.07824","created_at":"2026-05-18T01:32:10Z"},{"alias_kind":"pith_short_12","alias_value":"5G4ISJQDIUYY","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_16","alias_value":"5G4ISJQDIUYYXQ7Q","created_at":"2026-05-18T12:29:05Z"},{"alias_kind":"pith_short_8","alias_value":"5G4ISJQD","created_at":"2026-05-18T12:29:05Z"}],"graph_snapshots":[{"event_id":"sha256:196e70f6a045e5fba5089873c6874956a6d52c89b8d408b17fafc132865ee625","target":"graph","created_at":"2026-05-18T01:32:10Z","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":"Hypervelocity stars are those that have speeds exceeding the escape speed and are hence unbound from the Milky Way. We investigate a sample of low-mass hypervelocity candidates obtained using data from the high-precision SDSS Stripe 82 catalogue, which we have combined with spectroscopy from the 200-inch Hale Telescope at Palomar Observatory. We find four good candidates, but without metallicities it is difficult to pin-down their distances and therefore total velocities. Our best candidate has a significant likelihood that it is escaping the Milky Way for a wide-range of metallicities.","authors_text":"Jeffrey L. Carlin, Martin C. Smith, Yanqiong Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-01-30T16:29:41Z","title":"Nearby Low-Mass Hypervelocity Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.07824","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":"sha256:1385e1913f4c1a189ba3067b100b9e01ead9764d245376d7517272a39ff2aced","target":"record","created_at":"2026-05-18T01:32:10Z","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":"35d83d94510929cdf02f4dda180989ddc782f75b01563ddb41388c6a9ab90e81","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-01-30T16:29:41Z","title_canon_sha256":"d057691046ea8d9bf8f313196b0e8baa3821f238e4e287f7c116984af1999b35"},"schema_version":"1.0","source":{"id":"1501.07824","kind":"arxiv","version":1}},"canonical_sha256":"e9b889260345318bc3f038c4c8fea482c96256d71e7d25cf2f1c426c118b3c21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e9b889260345318bc3f038c4c8fea482c96256d71e7d25cf2f1c426c118b3c21","first_computed_at":"2026-05-18T01:32:10.561549Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:10.561549Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tzgV9+4Uki/DzKDYNoIUZdt2lZSEt1K2Ywu+dt861onQZwjPJMghWz/Gyh0t2PmmOBsx5OeoziK+ieQDgUIqCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:10.562115Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.07824","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1385e1913f4c1a189ba3067b100b9e01ead9764d245376d7517272a39ff2aced","sha256:196e70f6a045e5fba5089873c6874956a6d52c89b8d408b17fafc132865ee625"],"state_sha256":"ce72af45fcccfd5b74de6335e5d69b7fdbd2a837e4327e9472c462ee65ec607f"}