{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:QFCP3PNLZKPEOBMFL4FZIFDX52","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":"fe4794fc0532b6e7820b455f5c78e7114f3e16332885ec98482648b5586ef47f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-11-28T02:18:42Z","title_canon_sha256":"0c83b314a350f68eab39c315d9195ab2a716ae26e2dd7f3457bb75fe79df7adb"},"schema_version":"1.0","source":{"id":"2411.18865","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.18865","created_at":"2026-07-05T10:14:48Z"},{"alias_kind":"arxiv_version","alias_value":"2411.18865v2","created_at":"2026-07-05T10:14:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.18865","created_at":"2026-07-05T10:14:48Z"},{"alias_kind":"pith_short_12","alias_value":"QFCP3PNLZKPE","created_at":"2026-07-05T10:14:48Z"},{"alias_kind":"pith_short_16","alias_value":"QFCP3PNLZKPEOBMF","created_at":"2026-07-05T10:14:48Z"},{"alias_kind":"pith_short_8","alias_value":"QFCP3PNL","created_at":"2026-07-05T10:14:48Z"}],"graph_snapshots":[{"event_id":"sha256:323ace88916f486f698a618f5d5a3d18f210fb5756415febd588ce018ce9e588","target":"graph","created_at":"2026-07-05T10:14:48Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2411.18865/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has been fully operational since 11 January 2020. We present a comprehensive analysis of the beam structure for each of the 19 feed horns on FAST's L-band receiver across the Stokes I, Q, U, and V parameters. Using an on-the-fly mapping pattern, we conducted simultaneous sky mapping using all 19 beams directed towards polarization calibrators J1407+2827 and J0854+2006 from 2020 to 2022. Electromagnetic simulations were also performed to model the telescope's beam patterns in all Stokes parameters. Our findings reveal a symmetrica","authors_text":"Carl Heiles, Di Li, Jiguang Lu, Marko Krco, Peng Jiang, Qingliang Yang, Tao-Chung Ching, Timothy Robishaw, Xuan Du, Xunzhou Chen","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-11-28T02:18:42Z","title":"Beam Measurements of Full Stokes Parameters for the FAST L-band 19-beam Receiver"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.18865","kind":"arxiv","version":2},"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:ba6977590864b96d92c0aaee6866b48f45315ae2a5665ba380eacfbbc0957547","target":"record","created_at":"2026-07-05T10:14:48Z","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":"fe4794fc0532b6e7820b455f5c78e7114f3e16332885ec98482648b5586ef47f","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-11-28T02:18:42Z","title_canon_sha256":"0c83b314a350f68eab39c315d9195ab2a716ae26e2dd7f3457bb75fe79df7adb"},"schema_version":"1.0","source":{"id":"2411.18865","kind":"arxiv","version":2}},"canonical_sha256":"8144fdbdabca9e4705855f0b941477ee81ae19292eba9ab07dad0eb58870d6e8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8144fdbdabca9e4705855f0b941477ee81ae19292eba9ab07dad0eb58870d6e8","first_computed_at":"2026-07-05T10:14:48.412270Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:14:48.412270Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"25rTLiG6IIZOEEKOjL5zja+35vBGQSblmR83ITmq1hh4kE4bfyk4NAYchVnJQBtWiHrEF/+J6ozFXITJC1qGBA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:14:48.412732Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.18865","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ba6977590864b96d92c0aaee6866b48f45315ae2a5665ba380eacfbbc0957547","sha256:323ace88916f486f698a618f5d5a3d18f210fb5756415febd588ce018ce9e588"],"state_sha256":"a46110da1079f6bde888b1e8ebfac3615f111ac78108b469a2e78402f0e85757"}