{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:OLXF6CECZVJWRD347MWDFNAPVI","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":"fc1386c978480dec4a15138336ca042b68e73b0e8fa9fd32e6b552c0f52e7bb5","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-15T04:00:26Z","title_canon_sha256":"38d51d381e402a9d8dae58f0e68ec5ff353531346090ea5fb842736536903baf"},"schema_version":"1.0","source":{"id":"1409.4151","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.4151","created_at":"2026-05-18T01:42:02Z"},{"alias_kind":"arxiv_version","alias_value":"1409.4151v1","created_at":"2026-05-18T01:42:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.4151","created_at":"2026-05-18T01:42:02Z"},{"alias_kind":"pith_short_12","alias_value":"OLXF6CECZVJW","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"OLXF6CECZVJWRD34","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"OLXF6CEC","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:a4d60a972ab4a1b89e43a5aefc206e92150438270a368568dfc027103666e7bc","target":"graph","created_at":"2026-05-18T01:42:02Z","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":"(abridged) We run a Faraday structure determination data challenge to benchmark the currently available algorithms including Faraday synthesis (previously called RM synthesis in the literature), wavelet, compressive sampling and $QU$-fitting. The frequency set is similar to POSSUM/GALFACTS with a 300 MHz bandwidth from 1.1 to 1.4 GHz. We define three figures of merit motivated by the underlying science: a) an average RM weighted by polarized intensity, RMwtd, b) the separation $\\Delta\\phi$ of two Faraday components and c) the reduced chi-squared. Based on the current test data of signal to noi","authors_text":"(10) CfA), (2) U. Minnesota, (3) MPA, (4) U. Southampton, (5) U. Nagoya, (6) ICMM, 7), (7) PSTU, (8) U. Calgary, (9) U. Kumamoto, A. M. M. Scaife (4), C. S. Anderson (1), J. D. Bray (4), J. S. Farnes (1), J. Stil (8), K. Kumazaki (5), K. Takahashi (9), L. Rudnick (2), M. R. Bell (3), M. Wolleben (8) ((1) SIfA, Perm, R. J. van Weeren (10), R. Stepanov (6, S. Ideguchi (5), S. P. O'Sullivan (1), Takuya Akahori (1), T. O'Brien (2), X. H. Sun (1)","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-15T04:00:26Z","title":"Comparison of algorithms for determination of rotation measure and Faraday structure I. 1100 - 1400 MHz"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.4151","kind":"arxiv","version":1},"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":"sha256:46c8f2d397d5f9ac49d25e0274c4ded321d423127e41eb7e31ad151e6f294c07","target":"record","created_at":"2026-05-18T01:42:02Z","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":"fc1386c978480dec4a15138336ca042b68e73b0e8fa9fd32e6b552c0f52e7bb5","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-15T04:00:26Z","title_canon_sha256":"38d51d381e402a9d8dae58f0e68ec5ff353531346090ea5fb842736536903baf"},"schema_version":"1.0","source":{"id":"1409.4151","kind":"arxiv","version":1}},"canonical_sha256":"72ee5f0882cd53688f7cfb2c32b40faa3b32b70052a80ed023bb97bae84fb1fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"72ee5f0882cd53688f7cfb2c32b40faa3b32b70052a80ed023bb97bae84fb1fe","first_computed_at":"2026-05-18T01:42:02.696185Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:02.696185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"faD92/ymhwKNlc8oChX2av36Qkr+I7dSe4xj8WqXymDo1XIK2DzpZCEv9iHfQy4IzoPaDVQj0g4wOMr5O0tvDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:02.696822Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.4151","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46c8f2d397d5f9ac49d25e0274c4ded321d423127e41eb7e31ad151e6f294c07","sha256:a4d60a972ab4a1b89e43a5aefc206e92150438270a368568dfc027103666e7bc"],"state_sha256":"f844b48d1ad6f0080fa686965412ec49d2fc68003f02928f845a58cb53205be0"}