{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:JFCJNFVFGDIXVUOY2UGKANXKPX","short_pith_number":"pith:JFCJNFVF","canonical_record":{"source":{"id":"1207.3356","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-13T20:05:54Z","cross_cats_sorted":[],"title_canon_sha256":"1603a272013b07c872dd5951c0e19f7b5a11338e8f2e467e6acbfd768147580d","abstract_canon_sha256":"6297fed9a004b93e0ee3a3e89b626871555ea1cd6ba0e20758a9158847cd0049"},"schema_version":"1.0"},"canonical_sha256":"49449696a530d17ad1d8d50ca036ea7ddf35c279f1a69e99030262ea3a9b641e","source":{"kind":"arxiv","id":"1207.3356","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.3356","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"arxiv_version","alias_value":"1207.3356v3","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.3356","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"pith_short_12","alias_value":"JFCJNFVFGDIX","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JFCJNFVFGDIXVUOY","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JFCJNFVF","created_at":"2026-05-18T12:27:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:JFCJNFVFGDIXVUOY2UGKANXKPX","target":"record","payload":{"canonical_record":{"source":{"id":"1207.3356","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-13T20:05:54Z","cross_cats_sorted":[],"title_canon_sha256":"1603a272013b07c872dd5951c0e19f7b5a11338e8f2e467e6acbfd768147580d","abstract_canon_sha256":"6297fed9a004b93e0ee3a3e89b626871555ea1cd6ba0e20758a9158847cd0049"},"schema_version":"1.0"},"canonical_sha256":"49449696a530d17ad1d8d50ca036ea7ddf35c279f1a69e99030262ea3a9b641e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:22:39.261419Z","signature_b64":"Tq+YtQ5Lf8Dx0RgB08ytE/VBRqszhq5ZKiBSs+ghvP17FDVDHlPutVjCKc6DEPmQ4sqy/BPOR4XzgPDeLAxJAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49449696a530d17ad1d8d50ca036ea7ddf35c279f1a69e99030262ea3a9b641e","last_reissued_at":"2026-05-18T03:22:39.260744Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:22:39.260744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.3356","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":"2026-05-18T03:22:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PLVqKJbo2szk/tuZXCK63vjo7bci8ddLBkVUF8fT03yMFkwD2gd7aTz56ldYjLK4zxzdCeTtIZdYfAcQ9WE6Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T10:21:27.047493Z"},"content_sha256":"c213123b20a5d0391434ed4248b9e7e9524a36ca5594d55629924991310c8a4c","schema_version":"1.0","event_id":"sha256:c213123b20a5d0391434ed4248b9e7e9524a36ca5594d55629924991310c8a4c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:JFCJNFVFGDIXVUOY2UGKANXKPX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing Primordial Magnetism with Off-Diagonal Correlators of CMB Polarization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Amit P.S. Yadav, Levon Pogosian, Tanmay Vachaspati","submitted_at":"2012-07-13T20:05:54Z","abstract_excerpt":"Primordial magnetic fields (PMF) can create polarization $B$-modes in the cosmic microwave background (CMB) through Faraday rotation (FR), leading to non-trivial 2-point and 4-point correlators of the CMB temperature and polarization. We discuss the detectability of primordial magnetic fields using different correlators and evaluate their relative merits. We have fully accounted for the contamination by weak lensing, which contributes to the variance, but whose contribution to the 4-point correlations is orthogonal to that of FR. We show that a Planck-like experiment can detect scale-invariant"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.3356","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":"2026-05-18T03:22:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ueR5/oqH6QDTLSmQUAlraKMVZw/4kXl11TBFBY5H+ke8Td4eLtTE9+nBe3Z1/Pd7Zxl/KriBJXxbifzOgk5ZBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T10:21:27.047948Z"},"content_sha256":"7fdffdd1d0a8a23fc79b2bacebbcc0ea96c9d4cfbb5d22f786e78df4d7bc218c","schema_version":"1.0","event_id":"sha256:7fdffdd1d0a8a23fc79b2bacebbcc0ea96c9d4cfbb5d22f786e78df4d7bc218c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JFCJNFVFGDIXVUOY2UGKANXKPX/bundle.json","state_url":"https://pith.science/pith/JFCJNFVFGDIXVUOY2UGKANXKPX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JFCJNFVFGDIXVUOY2UGKANXKPX/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":"2026-05-25T10:21:27Z","links":{"resolver":"https://pith.science/pith/JFCJNFVFGDIXVUOY2UGKANXKPX","bundle":"https://pith.science/pith/JFCJNFVFGDIXVUOY2UGKANXKPX/bundle.json","state":"https://pith.science/pith/JFCJNFVFGDIXVUOY2UGKANXKPX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JFCJNFVFGDIXVUOY2UGKANXKPX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:JFCJNFVFGDIXVUOY2UGKANXKPX","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":"6297fed9a004b93e0ee3a3e89b626871555ea1cd6ba0e20758a9158847cd0049","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-13T20:05:54Z","title_canon_sha256":"1603a272013b07c872dd5951c0e19f7b5a11338e8f2e467e6acbfd768147580d"},"schema_version":"1.0","source":{"id":"1207.3356","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.3356","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"arxiv_version","alias_value":"1207.3356v3","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.3356","created_at":"2026-05-18T03:22:39Z"},{"alias_kind":"pith_short_12","alias_value":"JFCJNFVFGDIX","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JFCJNFVFGDIXVUOY","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JFCJNFVF","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:7fdffdd1d0a8a23fc79b2bacebbcc0ea96c9d4cfbb5d22f786e78df4d7bc218c","target":"graph","created_at":"2026-05-18T03:22:39Z","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":"Primordial magnetic fields (PMF) can create polarization $B$-modes in the cosmic microwave background (CMB) through Faraday rotation (FR), leading to non-trivial 2-point and 4-point correlators of the CMB temperature and polarization. We discuss the detectability of primordial magnetic fields using different correlators and evaluate their relative merits. We have fully accounted for the contamination by weak lensing, which contributes to the variance, but whose contribution to the 4-point correlations is orthogonal to that of FR. We show that a Planck-like experiment can detect scale-invariant","authors_text":"Amit P.S. Yadav, Levon Pogosian, Tanmay Vachaspati","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-13T20:05:54Z","title":"Probing Primordial Magnetism with Off-Diagonal Correlators of CMB Polarization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.3356","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:c213123b20a5d0391434ed4248b9e7e9524a36ca5594d55629924991310c8a4c","target":"record","created_at":"2026-05-18T03:22:39Z","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":"6297fed9a004b93e0ee3a3e89b626871555ea1cd6ba0e20758a9158847cd0049","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-13T20:05:54Z","title_canon_sha256":"1603a272013b07c872dd5951c0e19f7b5a11338e8f2e467e6acbfd768147580d"},"schema_version":"1.0","source":{"id":"1207.3356","kind":"arxiv","version":3}},"canonical_sha256":"49449696a530d17ad1d8d50ca036ea7ddf35c279f1a69e99030262ea3a9b641e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49449696a530d17ad1d8d50ca036ea7ddf35c279f1a69e99030262ea3a9b641e","first_computed_at":"2026-05-18T03:22:39.260744Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:22:39.260744Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Tq+YtQ5Lf8Dx0RgB08ytE/VBRqszhq5ZKiBSs+ghvP17FDVDHlPutVjCKc6DEPmQ4sqy/BPOR4XzgPDeLAxJAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:22:39.261419Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.3356","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c213123b20a5d0391434ed4248b9e7e9524a36ca5594d55629924991310c8a4c","sha256:7fdffdd1d0a8a23fc79b2bacebbcc0ea96c9d4cfbb5d22f786e78df4d7bc218c"],"state_sha256":"34660166622f6ef89f92c95155be0dd8213be1e8713fca92a7b6a1589d88b60e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UmagFoFm2f3cW8FzJoTVRraka8/RBEVIG0jOUsW4d3DJ49KAnDpXjlLjLJL8ZwAwEuLt3dYvZyPPSWGTulltCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T10:21:27.051030Z","bundle_sha256":"ffaca5d9602eb98148461d940db06ace920e3b247363468b4a272f594baa7775"}}