{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:XNMYK6KDBXOAY7RKAP55YXTUCN","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":"44d9a657143edee88463f6efc00fb922118338220479ac136579bdf2f20b8bbd","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-07-05T18:02:53Z","title_canon_sha256":"3e6a804d2ee950bd6c40861da4c4b09d213e68b3930d7445d7fbf72b53ab0ef6"},"schema_version":"1.0","source":{"id":"astro-ph/0007056","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0007056","created_at":"2026-05-18T01:40:47Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0007056v1","created_at":"2026-05-18T01:40:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0007056","created_at":"2026-05-18T01:40:47Z"},{"alias_kind":"pith_short_12","alias_value":"XNMYK6KDBXOA","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"XNMYK6KDBXOAY7RK","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"XNMYK6KD","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:fd4a6435d2cdb5febda4f7b45d0b30bec9a08e8aeeafd5c08cd38d4a9620b63f","target":"graph","created_at":"2026-05-18T01:40:47Z","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 Orthogonal Polarization Modes (OPM) have been reported observationally and accepted widely by pulsar researchers. However, no acceptable theory can show the origin of the OPM, which becomes a mystery in pulsar research field. Here a possible way to solve this mystery is presented. We ask a question: Does there exist any real so-called OPM in pulsar radiation? It is proposed in this paper that the `observed OPM' in individual pulses could be the results of depolarization of pulsar radiation and the observational uncertainties originated from polarimeter in observation. A possible way to che","authors_text":"G.J. Qiao (PKU), R.X. Xu","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-07-05T18:02:53Z","title":"Are there real orthogonal polarization modes in pulsar radio emission?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0007056","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":"sha256:48d358c4bad4aca63110a5725f8040f9846ca01c6a940c8b1464b929780822e3","target":"record","created_at":"2026-05-18T01:40:47Z","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":"44d9a657143edee88463f6efc00fb922118338220479ac136579bdf2f20b8bbd","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-07-05T18:02:53Z","title_canon_sha256":"3e6a804d2ee950bd6c40861da4c4b09d213e68b3930d7445d7fbf72b53ab0ef6"},"schema_version":"1.0","source":{"id":"astro-ph/0007056","kind":"arxiv","version":1}},"canonical_sha256":"bb598579430ddc0c7e2a03fbdc5e74135d8261823992a386212154d038875403","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bb598579430ddc0c7e2a03fbdc5e74135d8261823992a386212154d038875403","first_computed_at":"2026-05-18T01:40:47.581593Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:47.581593Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Z6WYmV2D3qme1VSerWojLHVWumwaE7t/xw6LDIe80v7T4Gb8jeVAG9FUh34BHL01dqFeaImcGhOpLZUAAcmJCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:47.582119Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0007056","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:48d358c4bad4aca63110a5725f8040f9846ca01c6a940c8b1464b929780822e3","sha256:fd4a6435d2cdb5febda4f7b45d0b30bec9a08e8aeeafd5c08cd38d4a9620b63f"],"state_sha256":"6ce9e8b554df5cefec57c7556a8e3eabe1ed509ecf6d8bf4f7b5cb3c2430b06f"}