{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:C7WKTB3UQNLVWL6DG2KSURJNKB","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":"ca30948328ded4931eabeca2aefc959765bbf74a0434622d497f9a54dafc539a","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-02-04T21:37:47Z","title_canon_sha256":"5b065be9a2d806cd3963d257385bc356e57b311b0060679274e7222417c08989"},"schema_version":"1.0","source":{"id":"1302.0876","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.0876","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1302.0876v2","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.0876","created_at":"2026-05-18T03:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"C7WKTB3UQNLV","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"C7WKTB3UQNLVWL6D","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"C7WKTB3U","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:0a9d533b297f5ccb7f6c269d5fd304404018878b6acca397388b79bbd28d5d54","target":"graph","created_at":"2026-05-18T03:21:10Z","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":"Experiments aimed at detecting highly-redshifted 21 centimeter emission from the Epoch of Reionization (EoR) are plagued by the contamination of foreground emission. A potentially important source of contaminating foregrounds may be Faraday-rotated, polarized emission, which leaks into the estimate of the intrinsically unpolarized EoR signal. While these foregrounds' intrinsic polarization may not be problematic, the spectral structure introduced by the Faraday rotation could be. To better understand and characterize these effects, we present a simulation of the polarized sky between 120 and 1","authors_text":"Aaron R. Parsons, Daniel C. Jacobs, David F. Moore, James E. Aguirre, Jonathan C. Pober","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-02-04T21:37:47Z","title":"The Effects of Polarized Foregrounds on 21cm Epoch of Reionization Power Spectrum Measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.0876","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":"sha256:8a3693403e72e10d811afdd32eaf146f5f5ba6ca746408a5275e0d1b0dbbdf45","target":"record","created_at":"2026-05-18T03:21:10Z","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":"ca30948328ded4931eabeca2aefc959765bbf74a0434622d497f9a54dafc539a","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-02-04T21:37:47Z","title_canon_sha256":"5b065be9a2d806cd3963d257385bc356e57b311b0060679274e7222417c08989"},"schema_version":"1.0","source":{"id":"1302.0876","kind":"arxiv","version":2}},"canonical_sha256":"17eca9877483575b2fc336952a452d50469b7c46c7a8e7e0bf4b4e1fd2237fd8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17eca9877483575b2fc336952a452d50469b7c46c7a8e7e0bf4b4e1fd2237fd8","first_computed_at":"2026-05-18T03:21:10.280598Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:21:10.280598Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wnz1pUqjWar5b05GIpxo9tRkZEZ7PIjSaGvlDRyfRK45UMZbneZ2UERNRH5v/+zmihBoYdhbLVz9GclcI0qIAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:21:10.281435Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.0876","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a3693403e72e10d811afdd32eaf146f5f5ba6ca746408a5275e0d1b0dbbdf45","sha256:0a9d533b297f5ccb7f6c269d5fd304404018878b6acca397388b79bbd28d5d54"],"state_sha256":"ef82d9a1b536aae438af7c5fd63b9c59b018945ecf8dd058c602108736cc3e6c"}