{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:UZKUTCOWDBH4BZP4U3JTZJIBK4","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":"db601499bb7ca71e8b15aefebdb1fc3bd3bd5f66d210003e9c2147eba3427eff","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-02-11T21:00:01Z","title_canon_sha256":"835a401481fd5dc4c321cc580013b71bf401e6af33834d44a04807d5f45a329a"},"schema_version":"1.0","source":{"id":"1602.03887","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.03887","created_at":"2026-05-18T00:55:39Z"},{"alias_kind":"arxiv_version","alias_value":"1602.03887v2","created_at":"2026-05-18T00:55:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.03887","created_at":"2026-05-18T00:55:39Z"},{"alias_kind":"pith_short_12","alias_value":"UZKUTCOWDBH4","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UZKUTCOWDBH4BZP4","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UZKUTCOW","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:4b91ebe41dbc33941b8d27e0eb84abaa1acc333b3c6176004b2e3fd66df11874","target":"graph","created_at":"2026-05-18T00:55:39Z","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":"The Hydrogen Epoch of Reionization Array (HERA) is a radio interferometer aiming to detect the power spectrum of 21 cm fluctuations from neutral hydrogen from the Epoch of Reionization (EOR). Drawing on lessons from the Murchison Widefield Array (MWA) and the Precision Array for Probing the Epoch of Reionization (PAPER), HERA is a hexagonal array of large (14 m diameter) dishes with suspended dipole feeds. Not only does the dish determine overall sensitivity, it affects the observed frequency structure of foregrounds in the interferometer. This is the first of a series of four papers character","authors_text":"Aaron Ewall-Wice, Aaron R. Parsons, Abraham R. Neben, Benjamin R.B. Saliwanchik, Butch Wirt, Carina Cheng, Daniel C. Jacobs, David R. DeBoer, Dennis Egan, Haoxuan Zheng, H.A. Taylor, Jacqueline N. Hewitt, James E. Aguirre, John Shelton, Joshua S. Dillon, Judd Bowman, Kavilan Moodley, Max Tegmark, Mike Hedrick, Nipanjana Patra, Nithyanandan Thyagarajan, Patricia J. Klima, Patrick Schaffner, Phillip Doolittle, Richard F. Bradley, Roger Dickenson, Rusty Taylor, Saul A. Kohn, Zaki S. Ali","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-02-11T21:00:01Z","title":"The Hydrogen Epoch of Reionization Array Dish I: Beam Pattern Measurements and Science Implications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.03887","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:ea64e1c17f3b8dd7a80c79cae52b9dc813edb705f01541c24b16d6968e4ac288","target":"record","created_at":"2026-05-18T00:55:39Z","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":"db601499bb7ca71e8b15aefebdb1fc3bd3bd5f66d210003e9c2147eba3427eff","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-02-11T21:00:01Z","title_canon_sha256":"835a401481fd5dc4c321cc580013b71bf401e6af33834d44a04807d5f45a329a"},"schema_version":"1.0","source":{"id":"1602.03887","kind":"arxiv","version":2}},"canonical_sha256":"a6554989d6184fc0e5fca6d33ca501573d01aa75ed5c9cbde2094312d66d75dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6554989d6184fc0e5fca6d33ca501573d01aa75ed5c9cbde2094312d66d75dc","first_computed_at":"2026-05-18T00:55:39.337445Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:55:39.337445Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SE2zpDjdJZfal3n6Mt37HnrKqx0kZLKQja1hvi5fBXETp4+IQQJE/ZJWJkJHHhj463u9U2w/I82srRFclIpKCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:55:39.338017Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.03887","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea64e1c17f3b8dd7a80c79cae52b9dc813edb705f01541c24b16d6968e4ac288","sha256:4b91ebe41dbc33941b8d27e0eb84abaa1acc333b3c6176004b2e3fd66df11874"],"state_sha256":"145597651cf1ecd3791d6ee98fab1d049084668ede68934a54f1bc33cec9da02"}