{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:SDLB4CWFRBWUVYXJZNQSVAPRYU","short_pith_number":"pith:SDLB4CWF","canonical_record":{"source":{"id":"1306.6292","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2013-06-26T16:59:11Z","cross_cats_sorted":["gr-qc","hep-th","math.MP"],"title_canon_sha256":"18c1a22a1ad60aae123c86af3fb1411b917ec856c3ef5a53cfc7d7fad21ce67f","abstract_canon_sha256":"cf7ce176ca9fb66f9268b1824c3b5660f938f799ebef672017173f80c38cae58"},"schema_version":"1.0"},"canonical_sha256":"90d61e0ac5886d4ae2e9cb612a81f1c5261292a0a09eb716741ebb1e16307c65","source":{"kind":"arxiv","id":"1306.6292","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.6292","created_at":"2026-05-18T03:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"1306.6292v1","created_at":"2026-05-18T03:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.6292","created_at":"2026-05-18T03:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"SDLB4CWFRBWU","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SDLB4CWFRBWUVYXJ","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SDLB4CWF","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:SDLB4CWFRBWUVYXJZNQSVAPRYU","target":"record","payload":{"canonical_record":{"source":{"id":"1306.6292","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2013-06-26T16:59:11Z","cross_cats_sorted":["gr-qc","hep-th","math.MP"],"title_canon_sha256":"18c1a22a1ad60aae123c86af3fb1411b917ec856c3ef5a53cfc7d7fad21ce67f","abstract_canon_sha256":"cf7ce176ca9fb66f9268b1824c3b5660f938f799ebef672017173f80c38cae58"},"schema_version":"1.0"},"canonical_sha256":"90d61e0ac5886d4ae2e9cb612a81f1c5261292a0a09eb716741ebb1e16307c65","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:55.367942Z","signature_b64":"vQQH80JZgfp4ViofI7H5yUkfkCjB2RhkGm55OaI5WsvQ5B7j4W1hk4LwDS7+vUrtkwurOGIMjdhjwgPCjxxvAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90d61e0ac5886d4ae2e9cb612a81f1c5261292a0a09eb716741ebb1e16307c65","last_reissued_at":"2026-05-18T03:19:55.367058Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:55.367058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.6292","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:19:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kjaUxEMHya7CltPODaQD1rGoG7aS2jJn6J0LzaHLyaq017mk/NJiiJplikLtxeEBSN4XsP0Uy6VVpgj5tnAnCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T22:35:18.165871Z"},"content_sha256":"c27fd833d4098d3561c003f7d0f28a11cbec7cf1e5f5c95732cea263a530bff3","schema_version":"1.0","event_id":"sha256:c27fd833d4098d3561c003f7d0f28a11cbec7cf1e5f5c95732cea263a530bff3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:SDLB4CWFRBWUVYXJZNQSVAPRYU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"An Exact Expression for Photon Polarization in Kerr Geometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th","math.MP"],"primary_cat":"math-ph","authors_text":"Anusar Farooqui, Niky Kamran, Prakash Panangaden","submitted_at":"2013-06-26T16:59:11Z","abstract_excerpt":"We analyze the transformation of the polarization of a photon propagating along an arbitrary null geodesic in Kerr geometry. The motivation comes from the problem of an observer trying to communicate quantum information to another observer in Kerr spacetime by transmitting polarized photons. It is essential that the observers understand the relationship between their frames of reference and also know how the photon's polarization transforms as it travels through Kerr spacetime. Existing methods to calculate the rotation of the photon polarization (Faraday rotation) depend on choices of coordin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.6292","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":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:19:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kK3zJsxrIfMnfE82m1dVWJmFA3NeZawnM2lJKcBfiHNTy3Fo5uvskPJvLWgF23AFlSAxmRnz5vxRJuSWYvpDCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T22:35:18.166533Z"},"content_sha256":"ce4ca0eff3b0be922690a369e43b64628dd30b0e352805f528c864a36d50d6ec","schema_version":"1.0","event_id":"sha256:ce4ca0eff3b0be922690a369e43b64628dd30b0e352805f528c864a36d50d6ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SDLB4CWFRBWUVYXJZNQSVAPRYU/bundle.json","state_url":"https://pith.science/pith/SDLB4CWFRBWUVYXJZNQSVAPRYU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SDLB4CWFRBWUVYXJZNQSVAPRYU/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-20T22:35:18Z","links":{"resolver":"https://pith.science/pith/SDLB4CWFRBWUVYXJZNQSVAPRYU","bundle":"https://pith.science/pith/SDLB4CWFRBWUVYXJZNQSVAPRYU/bundle.json","state":"https://pith.science/pith/SDLB4CWFRBWUVYXJZNQSVAPRYU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SDLB4CWFRBWUVYXJZNQSVAPRYU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:SDLB4CWFRBWUVYXJZNQSVAPRYU","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":"cf7ce176ca9fb66f9268b1824c3b5660f938f799ebef672017173f80c38cae58","cross_cats_sorted":["gr-qc","hep-th","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2013-06-26T16:59:11Z","title_canon_sha256":"18c1a22a1ad60aae123c86af3fb1411b917ec856c3ef5a53cfc7d7fad21ce67f"},"schema_version":"1.0","source":{"id":"1306.6292","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.6292","created_at":"2026-05-18T03:19:55Z"},{"alias_kind":"arxiv_version","alias_value":"1306.6292v1","created_at":"2026-05-18T03:19:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.6292","created_at":"2026-05-18T03:19:55Z"},{"alias_kind":"pith_short_12","alias_value":"SDLB4CWFRBWU","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SDLB4CWFRBWUVYXJ","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SDLB4CWF","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:ce4ca0eff3b0be922690a369e43b64628dd30b0e352805f528c864a36d50d6ec","target":"graph","created_at":"2026-05-18T03:19:55Z","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":"We analyze the transformation of the polarization of a photon propagating along an arbitrary null geodesic in Kerr geometry. The motivation comes from the problem of an observer trying to communicate quantum information to another observer in Kerr spacetime by transmitting polarized photons. It is essential that the observers understand the relationship between their frames of reference and also know how the photon's polarization transforms as it travels through Kerr spacetime. Existing methods to calculate the rotation of the photon polarization (Faraday rotation) depend on choices of coordin","authors_text":"Anusar Farooqui, Niky Kamran, Prakash Panangaden","cross_cats":["gr-qc","hep-th","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2013-06-26T16:59:11Z","title":"An Exact Expression for Photon Polarization in Kerr Geometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.6292","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:c27fd833d4098d3561c003f7d0f28a11cbec7cf1e5f5c95732cea263a530bff3","target":"record","created_at":"2026-05-18T03:19:55Z","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":"cf7ce176ca9fb66f9268b1824c3b5660f938f799ebef672017173f80c38cae58","cross_cats_sorted":["gr-qc","hep-th","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2013-06-26T16:59:11Z","title_canon_sha256":"18c1a22a1ad60aae123c86af3fb1411b917ec856c3ef5a53cfc7d7fad21ce67f"},"schema_version":"1.0","source":{"id":"1306.6292","kind":"arxiv","version":1}},"canonical_sha256":"90d61e0ac5886d4ae2e9cb612a81f1c5261292a0a09eb716741ebb1e16307c65","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90d61e0ac5886d4ae2e9cb612a81f1c5261292a0a09eb716741ebb1e16307c65","first_computed_at":"2026-05-18T03:19:55.367058Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:19:55.367058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vQQH80JZgfp4ViofI7H5yUkfkCjB2RhkGm55OaI5WsvQ5B7j4W1hk4LwDS7+vUrtkwurOGIMjdhjwgPCjxxvAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:19:55.367942Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.6292","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c27fd833d4098d3561c003f7d0f28a11cbec7cf1e5f5c95732cea263a530bff3","sha256:ce4ca0eff3b0be922690a369e43b64628dd30b0e352805f528c864a36d50d6ec"],"state_sha256":"d87c4c0a5ab5e6c20624bfe123bb348ded9287fec6d9298fcaefc4798335281f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K7G/sr5rXb5JcBIjeQxkfGa81DxPsZ4Cv0l5SMV5wkQxk2q/86qwZo8r66UD3+Li7QrF4xstzklZK4/yhLU8Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T22:35:18.170112Z","bundle_sha256":"6540aedf0d6af22c44d366805dc4076a93ebf38037684fc783577e94fd6be3e2"}}