{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:DS3PBVS4QOIRPSAXQX5E7DV3GV","short_pith_number":"pith:DS3PBVS4","canonical_record":{"source":{"id":"1002.1308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-05T21:00:09Z","cross_cats_sorted":[],"title_canon_sha256":"8bce60c1254cf1c2e13469030089e59b70a12a7897af98b9103b6d4e57654ea9","abstract_canon_sha256":"054465be2384e3f632818cd16142267eb7e74a582bac25789ab6905dc784cc0f"},"schema_version":"1.0"},"canonical_sha256":"1cb6f0d65c839117c81785fa4f8ebb3579b5f61d5aea155b1f84314a4bd54e67","source":{"kind":"arxiv","id":"1002.1308","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.1308","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"1002.1308v1","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.1308","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"DS3PBVS4QOIR","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DS3PBVS4QOIRPSAX","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DS3PBVS4","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:DS3PBVS4QOIRPSAXQX5E7DV3GV","target":"record","payload":{"canonical_record":{"source":{"id":"1002.1308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-05T21:00:09Z","cross_cats_sorted":[],"title_canon_sha256":"8bce60c1254cf1c2e13469030089e59b70a12a7897af98b9103b6d4e57654ea9","abstract_canon_sha256":"054465be2384e3f632818cd16142267eb7e74a582bac25789ab6905dc784cc0f"},"schema_version":"1.0"},"canonical_sha256":"1cb6f0d65c839117c81785fa4f8ebb3579b5f61d5aea155b1f84314a4bd54e67","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:48.582435Z","signature_b64":"KhoaELzU36Wtpu7IX+lzakZYHC1f3trxJUVvLSXxfhV9TskGPUYFLB1GZGayzHYOv5S9P0h06T6Mb7UXmD6ODw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1cb6f0d65c839117c81785fa4f8ebb3579b5f61d5aea155b1f84314a4bd54e67","last_reissued_at":"2026-05-18T02:33:48.581803Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:48.581803Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1002.1308","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":"2026-05-18T02:33:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hr4Vy8bxD3bp8XYxgBQH24uoSu/35Mv2tulMybJ3uTsndEU1LFHszgGaugLa7cD3SkoaGut3Dy+Ojap4Gd90Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T23:04:09.850789Z"},"content_sha256":"5797fa79f26d8292fbe6463b9a4f96c82bc8fe49513a16a1cea84e58e4f671c6","schema_version":"1.0","event_id":"sha256:5797fa79f26d8292fbe6463b9a4f96c82bc8fe49513a16a1cea84e58e4f671c6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:DS3PBVS4QOIRPSAXQX5E7DV3GV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing Parity-Violating Mechanisms with Cosmic Microwave Background Experiments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Marc Kamionkowski, Vera Gluscevic","submitted_at":"2010-02-05T21:00:09Z","abstract_excerpt":"Chiral gravity and cosmological birefringence both provide physical mechanisms to produce parity-violating TB and EB correlations in the cosmic microwave background (CMB) temperature/polarization. Here, we study how well these two mechanisms can be distinguished if non-zero TB/EB correlations are found. To do so, we evaluate the correlation matrix, including new TB-EB covariances. We find that the effects of these two mechanisms on the CMB are highly orthogonal, and can thus be distinguished fairly well in case of a high--signal-to-noise detection of TB/EB correlations. An Appendix evaluates t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.1308","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":"2026-05-18T02:33:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+P0oiQ5wB8cksRdGGSCIngqDP3oKIYeHEWxc2VN6p/8Oek+WqR7rBA18UlnjQ7kUD2ZASb81vgm/DtRaBginBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T23:04:09.851449Z"},"content_sha256":"0d4624742395b2cba0b11ebc1044e5b4d257fef46f24ed45355cf87f9c8c9d40","schema_version":"1.0","event_id":"sha256:0d4624742395b2cba0b11ebc1044e5b4d257fef46f24ed45355cf87f9c8c9d40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DS3PBVS4QOIRPSAXQX5E7DV3GV/bundle.json","state_url":"https://pith.science/pith/DS3PBVS4QOIRPSAXQX5E7DV3GV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DS3PBVS4QOIRPSAXQX5E7DV3GV/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":"2026-05-20T23:04:09Z","links":{"resolver":"https://pith.science/pith/DS3PBVS4QOIRPSAXQX5E7DV3GV","bundle":"https://pith.science/pith/DS3PBVS4QOIRPSAXQX5E7DV3GV/bundle.json","state":"https://pith.science/pith/DS3PBVS4QOIRPSAXQX5E7DV3GV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DS3PBVS4QOIRPSAXQX5E7DV3GV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:DS3PBVS4QOIRPSAXQX5E7DV3GV","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":"054465be2384e3f632818cd16142267eb7e74a582bac25789ab6905dc784cc0f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-05T21:00:09Z","title_canon_sha256":"8bce60c1254cf1c2e13469030089e59b70a12a7897af98b9103b6d4e57654ea9"},"schema_version":"1.0","source":{"id":"1002.1308","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.1308","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"arxiv_version","alias_value":"1002.1308v1","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.1308","created_at":"2026-05-18T02:33:48Z"},{"alias_kind":"pith_short_12","alias_value":"DS3PBVS4QOIR","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DS3PBVS4QOIRPSAX","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DS3PBVS4","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:0d4624742395b2cba0b11ebc1044e5b4d257fef46f24ed45355cf87f9c8c9d40","target":"graph","created_at":"2026-05-18T02:33:48Z","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":"Chiral gravity and cosmological birefringence both provide physical mechanisms to produce parity-violating TB and EB correlations in the cosmic microwave background (CMB) temperature/polarization. Here, we study how well these two mechanisms can be distinguished if non-zero TB/EB correlations are found. To do so, we evaluate the correlation matrix, including new TB-EB covariances. We find that the effects of these two mechanisms on the CMB are highly orthogonal, and can thus be distinguished fairly well in case of a high--signal-to-noise detection of TB/EB correlations. An Appendix evaluates t","authors_text":"Marc Kamionkowski, Vera Gluscevic","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-05T21:00:09Z","title":"Testing Parity-Violating Mechanisms with Cosmic Microwave Background Experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.1308","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":"sha256:5797fa79f26d8292fbe6463b9a4f96c82bc8fe49513a16a1cea84e58e4f671c6","target":"record","created_at":"2026-05-18T02:33:48Z","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":"054465be2384e3f632818cd16142267eb7e74a582bac25789ab6905dc784cc0f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-05T21:00:09Z","title_canon_sha256":"8bce60c1254cf1c2e13469030089e59b70a12a7897af98b9103b6d4e57654ea9"},"schema_version":"1.0","source":{"id":"1002.1308","kind":"arxiv","version":1}},"canonical_sha256":"1cb6f0d65c839117c81785fa4f8ebb3579b5f61d5aea155b1f84314a4bd54e67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1cb6f0d65c839117c81785fa4f8ebb3579b5f61d5aea155b1f84314a4bd54e67","first_computed_at":"2026-05-18T02:33:48.581803Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:48.581803Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KhoaELzU36Wtpu7IX+lzakZYHC1f3trxJUVvLSXxfhV9TskGPUYFLB1GZGayzHYOv5S9P0h06T6Mb7UXmD6ODw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:48.582435Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.1308","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5797fa79f26d8292fbe6463b9a4f96c82bc8fe49513a16a1cea84e58e4f671c6","sha256:0d4624742395b2cba0b11ebc1044e5b4d257fef46f24ed45355cf87f9c8c9d40"],"state_sha256":"c51152fb2702f5c94bd30aa1a88d3d0f9ee7fcb3c7fcd53e28f24700f85fc480"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xXqfIHqEw3p1K9pufGmrkuLK7W8h3OtjgrtoGr3sW+VSmaQQPNhUcZ1g0VSajbXCoMtRDlTGsoAxKj08jePNCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T23:04:09.855224Z","bundle_sha256":"1e66baaa531c1a5ea64b089d56ab108dd1618b8ec7f1d70c35db1a893869089b"}}