{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:4BDC6FXNINP7EB3G2MSUNBF4ZV","short_pith_number":"pith:4BDC6FXN","schema_version":"1.0","canonical_sha256":"e0462f16ed435ff20766d3254684bccd5ef2133a0dad078cb57e8d6da1e1b6e6","source":{"kind":"arxiv","id":"2606.19229","version":1},"attestation_state":"computed","paper":{"title":"Distinct Near-Horizon Trend of Synchrotron Polarization in Kerr Spacetime","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Bin Chen, Jiewei Huang, Yehui Hou","submitted_at":"2026-06-17T16:05:34Z","abstract_excerpt":"We show that the near-horizon expansion of the linear polarization vector for synchrotron emission in a Kerr background admits a distinct analytic form. For emission from a stationary, axisymmetric, degenerate electromagnetic field, the leading-order polarization pattern depends only on the Kerr spin and the source polar angle, while the next-to-leading-order correction further encodes the geometric and rotational structure of the electromagnetic field. Our result extends the equatorial analysis of [Hou et al. (2024)] and the off-equatorial leading-order result of [Chael et al. (2026)]. Near-h"},"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":"2606.19229","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2026-06-17T16:05:34Z","cross_cats_sorted":[],"title_canon_sha256":"efea5bc0a656222087ef591993075d6719603be7f79e43a315912fe8827f9e6d","abstract_canon_sha256":"bdbe2f1bbc0a1534151fa555974ab868045668c5c254175ad0a54cc9985a43f2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:12:08.307897Z","signature_b64":"fpjYQInBUMV+gzNb1TMrxVG1GF1/lGIFbCygz6UzSTbeZDuUB+/Wn4JNA9owMGaSpycQH65m5FwNA5QYOvY2Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e0462f16ed435ff20766d3254684bccd5ef2133a0dad078cb57e8d6da1e1b6e6","last_reissued_at":"2026-06-19T16:12:08.307557Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:12:08.307557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Distinct Near-Horizon Trend of Synchrotron Polarization in Kerr Spacetime","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Bin Chen, Jiewei Huang, Yehui Hou","submitted_at":"2026-06-17T16:05:34Z","abstract_excerpt":"We show that the near-horizon expansion of the linear polarization vector for synchrotron emission in a Kerr background admits a distinct analytic form. For emission from a stationary, axisymmetric, degenerate electromagnetic field, the leading-order polarization pattern depends only on the Kerr spin and the source polar angle, while the next-to-leading-order correction further encodes the geometric and rotational structure of the electromagnetic field. Our result extends the equatorial analysis of [Hou et al. (2024)] and the off-equatorial leading-order result of [Chael et al. (2026)]. Near-h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.19229","kind":"arxiv","version":1},"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/2606.19229/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":"2606.19229","created_at":"2026-06-19T16:12:08.307618+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.19229v1","created_at":"2026-06-19T16:12:08.307618+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.19229","created_at":"2026-06-19T16:12:08.307618+00:00"},{"alias_kind":"pith_short_12","alias_value":"4BDC6FXNINP7","created_at":"2026-06-19T16:12:08.307618+00:00"},{"alias_kind":"pith_short_16","alias_value":"4BDC6FXNINP7EB3G","created_at":"2026-06-19T16:12:08.307618+00:00"},{"alias_kind":"pith_short_8","alias_value":"4BDC6FXN","created_at":"2026-06-19T16:12:08.307618+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/4BDC6FXNINP7EB3G2MSUNBF4ZV","json":"https://pith.science/pith/4BDC6FXNINP7EB3G2MSUNBF4ZV.json","graph_json":"https://pith.science/api/pith-number/4BDC6FXNINP7EB3G2MSUNBF4ZV/graph.json","events_json":"https://pith.science/api/pith-number/4BDC6FXNINP7EB3G2MSUNBF4ZV/events.json","paper":"https://pith.science/paper/4BDC6FXN"},"agent_actions":{"view_html":"https://pith.science/pith/4BDC6FXNINP7EB3G2MSUNBF4ZV","download_json":"https://pith.science/pith/4BDC6FXNINP7EB3G2MSUNBF4ZV.json","view_paper":"https://pith.science/paper/4BDC6FXN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.19229&json=true","fetch_graph":"https://pith.science/api/pith-number/4BDC6FXNINP7EB3G2MSUNBF4ZV/graph.json","fetch_events":"https://pith.science/api/pith-number/4BDC6FXNINP7EB3G2MSUNBF4ZV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4BDC6FXNINP7EB3G2MSUNBF4ZV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4BDC6FXNINP7EB3G2MSUNBF4ZV/action/storage_attestation","attest_author":"https://pith.science/pith/4BDC6FXNINP7EB3G2MSUNBF4ZV/action/author_attestation","sign_citation":"https://pith.science/pith/4BDC6FXNINP7EB3G2MSUNBF4ZV/action/citation_signature","submit_replication":"https://pith.science/pith/4BDC6FXNINP7EB3G2MSUNBF4ZV/action/replication_record"}},"created_at":"2026-06-19T16:12:08.307618+00:00","updated_at":"2026-06-19T16:12:08.307618+00:00"}