{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:K4UYKF2WBJVQC4HEN3MOI2YPKZ","short_pith_number":"pith:K4UYKF2W","canonical_record":{"source":{"id":"1809.08137","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-09-20T17:21:45Z","cross_cats_sorted":["astro-ph.HE","hep-ph"],"title_canon_sha256":"28f96b6802dc8bc11119adf0ad0dedf21488f06fbd4bfaf40e46506e40dba8e0","abstract_canon_sha256":"376f1d1759f92bb4ec9927da5a0ce1de97da4695ebcc879f253151492d1d4318"},"schema_version":"1.0"},"canonical_sha256":"57298517560a6b0170e46ed8e46b0f5670fbc6de8dcfa753e6c719c30e188f51","source":{"kind":"arxiv","id":"1809.08137","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.08137","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"arxiv_version","alias_value":"1809.08137v3","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.08137","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"pith_short_12","alias_value":"K4UYKF2WBJVQ","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"K4UYKF2WBJVQC4HE","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"K4UYKF2W","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:K4UYKF2WBJVQC4HEN3MOI2YPKZ","target":"record","payload":{"canonical_record":{"source":{"id":"1809.08137","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-09-20T17:21:45Z","cross_cats_sorted":["astro-ph.HE","hep-ph"],"title_canon_sha256":"28f96b6802dc8bc11119adf0ad0dedf21488f06fbd4bfaf40e46506e40dba8e0","abstract_canon_sha256":"376f1d1759f92bb4ec9927da5a0ce1de97da4695ebcc879f253151492d1d4318"},"schema_version":"1.0"},"canonical_sha256":"57298517560a6b0170e46ed8e46b0f5670fbc6de8dcfa753e6c719c30e188f51","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:58.960629Z","signature_b64":"5xNdRl1lRYLc0ZQnGbdoqAfZ4U162JA08uqJhmfxXTJ6j52j/V0A/ZncRbprYM9J88ibdudghv9WXQugk3x3Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57298517560a6b0170e46ed8e46b0f5670fbc6de8dcfa753e6c719c30e188f51","last_reissued_at":"2026-05-17T23:54:58.960073Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:58.960073Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.08137","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:54:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vapuE/yKJOzbVsLSoIuOYSHJnbrOpbDDKjLP0bhXBXSKitXjFdlB1l/Gjj01zov7xt8jah38LmqWdI3NRUvjAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T09:54:18.890534Z"},"content_sha256":"16ed4214639d9a7353d271749634a7d277b3be1f75ff115667e8649789d000f0","schema_version":"1.0","event_id":"sha256:16ed4214639d9a7353d271749634a7d277b3be1f75ff115667e8649789d000f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:K4UYKF2WBJVQC4HEN3MOI2YPKZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generation of Circular Polarization of CMB via Polarized Compton Scattering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Ali Vahedi, Jafar Khodagholizadeh, Mahdi Sadegh, Rohoollah Mohammadi","submitted_at":"2018-09-20T17:21:45Z","abstract_excerpt":"The standard scenario of cosmology predicts a measurable amount for linear polarization of the Cosmic Microwave Background radiation (CMB) via Thomson scattering, while through this scenario, the generation of circular polarization is excluded. On the another hand, the circular polarization of CMB has not been excluded in observational evidence. The generation of CMB photons circular polarization via their Compton scattering with polarized cosmic electrons is considered in this paper. Our motivation for considering polarized Compton scattering comes from the effects of the external magnetic fi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.08137","kind":"arxiv","version":3},"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":"2026-05-17T23:54:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v30kGilSGSj1cPKzeVhekG6rZrMZlfVbfKPcBT0YfdYk1e7AdDvcX5c2WOPPuSkBJnKe+xfL0DLkTNtfBDORCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T09:54:18.890885Z"},"content_sha256":"69c6f9876e7babff359610506c40ed246c413ae329efcaeb6142be072a11a9da","schema_version":"1.0","event_id":"sha256:69c6f9876e7babff359610506c40ed246c413ae329efcaeb6142be072a11a9da"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K4UYKF2WBJVQC4HEN3MOI2YPKZ/bundle.json","state_url":"https://pith.science/pith/K4UYKF2WBJVQC4HEN3MOI2YPKZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K4UYKF2WBJVQC4HEN3MOI2YPKZ/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":"2026-06-27T09:54:18Z","links":{"resolver":"https://pith.science/pith/K4UYKF2WBJVQC4HEN3MOI2YPKZ","bundle":"https://pith.science/pith/K4UYKF2WBJVQC4HEN3MOI2YPKZ/bundle.json","state":"https://pith.science/pith/K4UYKF2WBJVQC4HEN3MOI2YPKZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K4UYKF2WBJVQC4HEN3MOI2YPKZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:K4UYKF2WBJVQC4HEN3MOI2YPKZ","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":"376f1d1759f92bb4ec9927da5a0ce1de97da4695ebcc879f253151492d1d4318","cross_cats_sorted":["astro-ph.HE","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-09-20T17:21:45Z","title_canon_sha256":"28f96b6802dc8bc11119adf0ad0dedf21488f06fbd4bfaf40e46506e40dba8e0"},"schema_version":"1.0","source":{"id":"1809.08137","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.08137","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"arxiv_version","alias_value":"1809.08137v3","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.08137","created_at":"2026-05-17T23:54:58Z"},{"alias_kind":"pith_short_12","alias_value":"K4UYKF2WBJVQ","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"K4UYKF2WBJVQC4HE","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"K4UYKF2W","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:69c6f9876e7babff359610506c40ed246c413ae329efcaeb6142be072a11a9da","target":"graph","created_at":"2026-05-17T23:54:58Z","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 standard scenario of cosmology predicts a measurable amount for linear polarization of the Cosmic Microwave Background radiation (CMB) via Thomson scattering, while through this scenario, the generation of circular polarization is excluded. On the another hand, the circular polarization of CMB has not been excluded in observational evidence. The generation of CMB photons circular polarization via their Compton scattering with polarized cosmic electrons is considered in this paper. Our motivation for considering polarized Compton scattering comes from the effects of the external magnetic fi","authors_text":"Ali Vahedi, Jafar Khodagholizadeh, Mahdi Sadegh, Rohoollah Mohammadi","cross_cats":["astro-ph.HE","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-09-20T17:21:45Z","title":"Generation of Circular Polarization of CMB via Polarized Compton Scattering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.08137","kind":"arxiv","version":3},"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":"sha256:16ed4214639d9a7353d271749634a7d277b3be1f75ff115667e8649789d000f0","target":"record","created_at":"2026-05-17T23:54:58Z","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":"376f1d1759f92bb4ec9927da5a0ce1de97da4695ebcc879f253151492d1d4318","cross_cats_sorted":["astro-ph.HE","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-09-20T17:21:45Z","title_canon_sha256":"28f96b6802dc8bc11119adf0ad0dedf21488f06fbd4bfaf40e46506e40dba8e0"},"schema_version":"1.0","source":{"id":"1809.08137","kind":"arxiv","version":3}},"canonical_sha256":"57298517560a6b0170e46ed8e46b0f5670fbc6de8dcfa753e6c719c30e188f51","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57298517560a6b0170e46ed8e46b0f5670fbc6de8dcfa753e6c719c30e188f51","first_computed_at":"2026-05-17T23:54:58.960073Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:58.960073Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5xNdRl1lRYLc0ZQnGbdoqAfZ4U162JA08uqJhmfxXTJ6j52j/V0A/ZncRbprYM9J88ibdudghv9WXQugk3x3Bg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:58.960629Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.08137","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16ed4214639d9a7353d271749634a7d277b3be1f75ff115667e8649789d000f0","sha256:69c6f9876e7babff359610506c40ed246c413ae329efcaeb6142be072a11a9da"],"state_sha256":"35cfec3246816c0c5882692e695c71c6f5fe5aa2847ccb3e317f8e9962a3c75b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pA4JezM7soV/TuVB7klvvndPstobc2mGOc4KRhmBMQljQVjvGyF0lPOOvVcp4yT1B2E6Y0jiU2QeQvqHjgsZBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T09:54:18.892813Z","bundle_sha256":"b64b87d34722863a1d4726c3f1bcb0ec6938d22a2f28a59fa5b311bbb8dfee7b"}}