{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ZSZDTFRCZWK7AQA22PCGEVFFF2","short_pith_number":"pith:ZSZDTFRC","canonical_record":{"source":{"id":"1605.05662","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-05-18T17:17:50Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"ee3189c18e1942d2d41b0495600aed50859db599925219cf925706da96437c67","abstract_canon_sha256":"aae2c9dde2b2130dafdb0da4878ce06489ffdba0a4c82eadf283e5e199bab157"},"schema_version":"1.0"},"canonical_sha256":"ccb2399622cd95f0401ad3c46254a52e9cb62fe47108b4fa7daebaab4f319ae2","source":{"kind":"arxiv","id":"1605.05662","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.05662","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"arxiv_version","alias_value":"1605.05662v4","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.05662","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"pith_short_12","alias_value":"ZSZDTFRCZWK7","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"pith_short_16","alias_value":"ZSZDTFRCZWK7AQA2","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"pith_short_8","alias_value":"ZSZDTFRC","created_at":"2026-07-05T08:25:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ZSZDTFRCZWK7AQA22PCGEVFFF2","target":"record","payload":{"canonical_record":{"source":{"id":"1605.05662","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-05-18T17:17:50Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"ee3189c18e1942d2d41b0495600aed50859db599925219cf925706da96437c67","abstract_canon_sha256":"aae2c9dde2b2130dafdb0da4878ce06489ffdba0a4c82eadf283e5e199bab157"},"schema_version":"1.0"},"canonical_sha256":"ccb2399622cd95f0401ad3c46254a52e9cb62fe47108b4fa7daebaab4f319ae2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:25:25.023571Z","signature_b64":"PUVu48Wf5OFUkZIs0XSopiLM5upCIcfmUM6ZEqNoimtYlEXtApNuwifM8vQSu2zSoQzHB1HQakOirI7pDKQfDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ccb2399622cd95f0401ad3c46254a52e9cb62fe47108b4fa7daebaab4f319ae2","last_reissued_at":"2026-07-05T08:25:25.023020Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:25:25.023020Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1605.05662","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:25:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"96era1taau3l8N9w7rDzuVWmCXRP1hzm0yAfW+cznDEw+kdvF1BG1nzCZi5ser1ZYyPNYx7zVNcfnxxLeY5oBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T17:49:01.246898Z"},"content_sha256":"b9b2284eef5ce925dcc3e2ba5d6510ff82a89b2956c5ef98175a9bcb7e1035e2","schema_version":"1.0","event_id":"sha256:b9b2284eef5ce925dcc3e2ba5d6510ff82a89b2956c5ef98175a9bcb7e1035e2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ZSZDTFRCZWK7AQA22PCGEVFFF2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Impact of post-Born lensing on the CMB","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"Antony Lewis, Geraint Pratten","submitted_at":"2016-05-18T17:17:50Z","abstract_excerpt":"Lensing of the CMB is affected by post-Born lensing, producing corrections to the convergence power spectrum and introducing field rotation. We show numerically that the lensing convergence power spectrum is affected at the $\\lesssim 0.2\\%$ level on accessible scales, and that this correction and the field rotation are negligible for observations with arcminute beam and noise levels $\\gtrsim 1 \\mu {\\text{K}}\\,{\\text{arcmin}} $. The field rotation generates $\\sim 2.5\\%$ of the total lensing B-mode polarization amplitude ($0.2\\%$ in power on small scales), but has a blue spectrum on large scales"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.05662","kind":"arxiv","version":4},"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/1605.05662/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:25:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hH82g9S7FQuO4XJhZlJKX9woVy+UcPmltJ/8tmMQvmrmBjAu38Z0j7mmI0sjltM1H40p+nKD++kNBDvP4ghOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T17:49:01.247543Z"},"content_sha256":"6f1a0a54fb329c177ba41315a49715e8668ad5d871b12753df11cb283e1fece0","schema_version":"1.0","event_id":"sha256:6f1a0a54fb329c177ba41315a49715e8668ad5d871b12753df11cb283e1fece0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZSZDTFRCZWK7AQA22PCGEVFFF2/bundle.json","state_url":"https://pith.science/pith/ZSZDTFRCZWK7AQA22PCGEVFFF2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZSZDTFRCZWK7AQA22PCGEVFFF2/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":"2026-08-10T17:49:01Z","links":{"resolver":"https://pith.science/pith/ZSZDTFRCZWK7AQA22PCGEVFFF2","bundle":"https://pith.science/pith/ZSZDTFRCZWK7AQA22PCGEVFFF2/bundle.json","state":"https://pith.science/pith/ZSZDTFRCZWK7AQA22PCGEVFFF2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZSZDTFRCZWK7AQA22PCGEVFFF2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ZSZDTFRCZWK7AQA22PCGEVFFF2","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":"aae2c9dde2b2130dafdb0da4878ce06489ffdba0a4c82eadf283e5e199bab157","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-05-18T17:17:50Z","title_canon_sha256":"ee3189c18e1942d2d41b0495600aed50859db599925219cf925706da96437c67"},"schema_version":"1.0","source":{"id":"1605.05662","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.05662","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"arxiv_version","alias_value":"1605.05662v4","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.05662","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"pith_short_12","alias_value":"ZSZDTFRCZWK7","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"pith_short_16","alias_value":"ZSZDTFRCZWK7AQA2","created_at":"2026-07-05T08:25:25Z"},{"alias_kind":"pith_short_8","alias_value":"ZSZDTFRC","created_at":"2026-07-05T08:25:25Z"}],"graph_snapshots":[{"event_id":"sha256:6f1a0a54fb329c177ba41315a49715e8668ad5d871b12753df11cb283e1fece0","target":"graph","created_at":"2026-07-05T08:25:25Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1605.05662/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Lensing of the CMB is affected by post-Born lensing, producing corrections to the convergence power spectrum and introducing field rotation. We show numerically that the lensing convergence power spectrum is affected at the $\\lesssim 0.2\\%$ level on accessible scales, and that this correction and the field rotation are negligible for observations with arcminute beam and noise levels $\\gtrsim 1 \\mu {\\text{K}}\\,{\\text{arcmin}} $. The field rotation generates $\\sim 2.5\\%$ of the total lensing B-mode polarization amplitude ($0.2\\%$ in power on small scales), but has a blue spectrum on large scales","authors_text":"Antony Lewis, Geraint Pratten","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-05-18T17:17:50Z","title":"Impact of post-Born lensing on the CMB"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.05662","kind":"arxiv","version":4},"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:b9b2284eef5ce925dcc3e2ba5d6510ff82a89b2956c5ef98175a9bcb7e1035e2","target":"record","created_at":"2026-07-05T08:25:25Z","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":"aae2c9dde2b2130dafdb0da4878ce06489ffdba0a4c82eadf283e5e199bab157","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2016-05-18T17:17:50Z","title_canon_sha256":"ee3189c18e1942d2d41b0495600aed50859db599925219cf925706da96437c67"},"schema_version":"1.0","source":{"id":"1605.05662","kind":"arxiv","version":4}},"canonical_sha256":"ccb2399622cd95f0401ad3c46254a52e9cb62fe47108b4fa7daebaab4f319ae2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ccb2399622cd95f0401ad3c46254a52e9cb62fe47108b4fa7daebaab4f319ae2","first_computed_at":"2026-07-05T08:25:25.023020Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:25:25.023020Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PUVu48Wf5OFUkZIs0XSopiLM5upCIcfmUM6ZEqNoimtYlEXtApNuwifM8vQSu2zSoQzHB1HQakOirI7pDKQfDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:25:25.023571Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.05662","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b9b2284eef5ce925dcc3e2ba5d6510ff82a89b2956c5ef98175a9bcb7e1035e2","sha256:6f1a0a54fb329c177ba41315a49715e8668ad5d871b12753df11cb283e1fece0"],"state_sha256":"8e2f289b9b62fc729b3a65dcd21509dc53af42b2937d194c509b9f8e8e945f2f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jwocn4w1B+9Z+TfjHqH+GmcHQeA4oRZqqE2o4tfPzNLt7YXeunEjpRWFLMjcwtW2fxMgNutR6MbsjOm+I2TXDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T17:49:01.252326Z","bundle_sha256":"53433609fb3420b61cea396cb436065165f7a33d16e64bee0a0b9300ec18c486"}}