{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:ACL4GDJKTYPJLGFN25T3ZGBIIZ","short_pith_number":"pith:ACL4GDJK","schema_version":"1.0","canonical_sha256":"0097c30d2a9e1e9598add767bc9828466a0f4ce5dcf641f3ce60ecb09928a572","source":{"kind":"arxiv","id":"2107.11487","version":2},"attestation_state":"computed","paper":{"title":"A Map of Diffuse Radio Emission at 182 MHz to Enhance Epoch of Reionization Observations in the Southern Hemisphere","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"Bryna Hazelton, Christene Lynch, Daniel C. Jacobs, Ian Sullivan, Jack L. B. Line, Miguel F. Morales, Nichole Barry, Ruby Byrne","submitted_at":"2021-07-23T23:51:40Z","abstract_excerpt":"We present a broadband map of polarized diffuse emission at 167-198 MHz developed from data from the Murchison Widefield Array (MWA). The map is designed to improve visibility simulation and precision calibration for 21 cm Epoch of Reionization (EoR) experiments. It covers a large swath - 11,000 sq. deg. - of the Southern Hemisphere sky in all four Stokes parameters and captures emission on angular scales of 1 to 9 degrees. The band-averaged diffuse structure is predominantly unpolarized but has significant linearly polarized structure near RA = 0 h. We evaluate the accuracy of the map by comb"},"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":"2107.11487","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-07-23T23:51:40Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"6f79fbdf672893b90080ab0423836864532e361e0cc2e27dfebe33c87a9a7d41","abstract_canon_sha256":"5d39aa4268ff7521fb4b531675afaaadef44183c8467824b984296e33da9290d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:32:09.949374Z","signature_b64":"NANwoHJBtfU8l80QGzcyzlR3+O5Ubv83tgLPMJFwxJgeK8elciIyqQ0K2kFqMjXVZ8kv+dP334RiMc5Ab7+mDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0097c30d2a9e1e9598add767bc9828466a0f4ce5dcf641f3ce60ecb09928a572","last_reissued_at":"2026-07-05T03:32:09.948888Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:32:09.948888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Map of Diffuse Radio Emission at 182 MHz to Enhance Epoch of Reionization Observations in the Southern Hemisphere","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"Bryna Hazelton, Christene Lynch, Daniel C. Jacobs, Ian Sullivan, Jack L. B. Line, Miguel F. Morales, Nichole Barry, Ruby Byrne","submitted_at":"2021-07-23T23:51:40Z","abstract_excerpt":"We present a broadband map of polarized diffuse emission at 167-198 MHz developed from data from the Murchison Widefield Array (MWA). The map is designed to improve visibility simulation and precision calibration for 21 cm Epoch of Reionization (EoR) experiments. It covers a large swath - 11,000 sq. deg. - of the Southern Hemisphere sky in all four Stokes parameters and captures emission on angular scales of 1 to 9 degrees. The band-averaged diffuse structure is predominantly unpolarized but has significant linearly polarized structure near RA = 0 h. We evaluate the accuracy of the map by comb"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.11487","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2107.11487/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2107.11487","created_at":"2026-07-05T03:32:09.948944+00:00"},{"alias_kind":"arxiv_version","alias_value":"2107.11487v2","created_at":"2026-07-05T03:32:09.948944+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.11487","created_at":"2026-07-05T03:32:09.948944+00:00"},{"alias_kind":"pith_short_12","alias_value":"ACL4GDJKTYPJ","created_at":"2026-07-05T03:32:09.948944+00:00"},{"alias_kind":"pith_short_16","alias_value":"ACL4GDJKTYPJLGFN","created_at":"2026-07-05T03:32:09.948944+00:00"},{"alias_kind":"pith_short_8","alias_value":"ACL4GDJK","created_at":"2026-07-05T03:32:09.948944+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/ACL4GDJKTYPJLGFN25T3ZGBIIZ","json":"https://pith.science/pith/ACL4GDJKTYPJLGFN25T3ZGBIIZ.json","graph_json":"https://pith.science/api/pith-number/ACL4GDJKTYPJLGFN25T3ZGBIIZ/graph.json","events_json":"https://pith.science/api/pith-number/ACL4GDJKTYPJLGFN25T3ZGBIIZ/events.json","paper":"https://pith.science/paper/ACL4GDJK"},"agent_actions":{"view_html":"https://pith.science/pith/ACL4GDJKTYPJLGFN25T3ZGBIIZ","download_json":"https://pith.science/pith/ACL4GDJKTYPJLGFN25T3ZGBIIZ.json","view_paper":"https://pith.science/paper/ACL4GDJK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2107.11487&json=true","fetch_graph":"https://pith.science/api/pith-number/ACL4GDJKTYPJLGFN25T3ZGBIIZ/graph.json","fetch_events":"https://pith.science/api/pith-number/ACL4GDJKTYPJLGFN25T3ZGBIIZ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ACL4GDJKTYPJLGFN25T3ZGBIIZ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ACL4GDJKTYPJLGFN25T3ZGBIIZ/action/storage_attestation","attest_author":"https://pith.science/pith/ACL4GDJKTYPJLGFN25T3ZGBIIZ/action/author_attestation","sign_citation":"https://pith.science/pith/ACL4GDJKTYPJLGFN25T3ZGBIIZ/action/citation_signature","submit_replication":"https://pith.science/pith/ACL4GDJKTYPJLGFN25T3ZGBIIZ/action/replication_record"}},"created_at":"2026-07-05T03:32:09.948944+00:00","updated_at":"2026-07-05T03:32:09.948944+00:00"}