{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:GV6TPFO7ORVNBCUBEKMMPMMCSB","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":"b1a0cdfc4e00b56f3a800fc10ed15353aca7fbd4b1694361bc452971530f1fe7","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-02-15T19:00:09Z","title_canon_sha256":"5a7a9775e1dc0ca308b743b25ec5f2e8023330207ad51c55a10bd440ec077d97"},"schema_version":"1.0","source":{"id":"1902.05962","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.05962","created_at":"2026-05-17T23:46:28Z"},{"alias_kind":"arxiv_version","alias_value":"1902.05962v3","created_at":"2026-05-17T23:46:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.05962","created_at":"2026-05-17T23:46:28Z"},{"alias_kind":"pith_short_12","alias_value":"GV6TPFO7ORVN","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"GV6TPFO7ORVNBCUB","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"GV6TPFO7","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:a3d8d23471664e7d1103c7f728027417a5e9e2ce923a956df93a6c69c1e5a734","target":"graph","created_at":"2026-05-17T23:46:28Z","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":"A class of dark photon dark matter models with ultralight masses would lead to oscillation of a test body through a coupling with baryons or $B-L$ charge. This periodical oscillation of an observer results in swing of a star's apparent position due to the effect of aberration of light, which could be probed with high-precision astrometry observations of stars in the Milky Way. We propose to use the observations of stellar positions of a number of stars by Gaia to search for this kind of dark photon dark matter. We show that this astrometry method is able to give promising sensitivities to sear","authors_text":"Huai-Ke Guo, Jing Shu, Qiang Yuan, Xiao Xue, Yingqi Ma, Yue Zhao","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-02-15T19:00:09Z","title":"Detecting dark photon dark matter with Gaia-like astrometry observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.05962","kind":"arxiv","version":3},"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:c92ee9db6f1e4d47f1ddce59551298911769c1f6ab1f743123329419829fcf6b","target":"record","created_at":"2026-05-17T23:46:28Z","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":"b1a0cdfc4e00b56f3a800fc10ed15353aca7fbd4b1694361bc452971530f1fe7","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2019-02-15T19:00:09Z","title_canon_sha256":"5a7a9775e1dc0ca308b743b25ec5f2e8023330207ad51c55a10bd440ec077d97"},"schema_version":"1.0","source":{"id":"1902.05962","kind":"arxiv","version":3}},"canonical_sha256":"357d3795df746ad08a812298c7b182904c517f85118ee77f185b75062efda4fa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"357d3795df746ad08a812298c7b182904c517f85118ee77f185b75062efda4fa","first_computed_at":"2026-05-17T23:46:28.903093Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:28.903093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"S2Lb5If0sgRUndyHpu3jKggvC5F/DmjVItW/m2T7IgpfKkFG7fg2h7uyjEYXtZBbxpypmAYBl/BrMKwnhsrXCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:28.903963Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.05962","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c92ee9db6f1e4d47f1ddce59551298911769c1f6ab1f743123329419829fcf6b","sha256:a3d8d23471664e7d1103c7f728027417a5e9e2ce923a956df93a6c69c1e5a734"],"state_sha256":"bf17a865ffb1c5360d320c5f2a68f471f101cb094050bd5b675c8df632e63287"}