{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:JVTZGFBB6GOQFRHAON5B576N4P","short_pith_number":"pith:JVTZGFBB","canonical_record":{"source":{"id":"2201.03799","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-01-11T06:18:51Z","cross_cats_sorted":[],"title_canon_sha256":"40cc2c53d544515b1f929c27617cbc0daeb879af077f6f2829514c8b5612ded9","abstract_canon_sha256":"b48f70d073805586cb35dbc1356357bd5ef8436a554622c13efb587c57d4d929"},"schema_version":"1.0"},"canonical_sha256":"4d67931421f19d02c4e0737a1effcde3e66455f713c34cf661510ba3d2d79b7c","source":{"kind":"arxiv","id":"2201.03799","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.03799","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"arxiv_version","alias_value":"2201.03799v1","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.03799","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"pith_short_12","alias_value":"JVTZGFBB6GOQ","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"pith_short_16","alias_value":"JVTZGFBB6GOQFRHA","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"pith_short_8","alias_value":"JVTZGFBB","created_at":"2026-07-05T04:15:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:JVTZGFBB6GOQFRHAON5B576N4P","target":"record","payload":{"canonical_record":{"source":{"id":"2201.03799","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-01-11T06:18:51Z","cross_cats_sorted":[],"title_canon_sha256":"40cc2c53d544515b1f929c27617cbc0daeb879af077f6f2829514c8b5612ded9","abstract_canon_sha256":"b48f70d073805586cb35dbc1356357bd5ef8436a554622c13efb587c57d4d929"},"schema_version":"1.0"},"canonical_sha256":"4d67931421f19d02c4e0737a1effcde3e66455f713c34cf661510ba3d2d79b7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:15:54.019813Z","signature_b64":"XgMMLagzk96rsFyKuc22geCe4Nk1ZkSlyCLeMRP8yHhva3TDjboeSf5JgIUxEBLynMaliAjhHSZmlDvlh2KtBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4d67931421f19d02c4e0737a1effcde3e66455f713c34cf661510ba3d2d79b7c","last_reissued_at":"2026-07-05T04:15:54.019289Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:15:54.019289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.03799","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":"2026-07-05T04:15:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WFc9rRLcPgeKE+3HgBMS3m95GsgKAQZmjanxrodudWl2yHkFin4PnlWK9Q0XTz4ILyOQfQIWbE0VhbvAgq3nDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T08:52:04.754610Z"},"content_sha256":"7c3da3c7d6a61020df6e24e37321932f8582511af916d24004b728d8d7c6b344","schema_version":"1.0","event_id":"sha256:7c3da3c7d6a61020df6e24e37321932f8582511af916d24004b728d8d7c6b344"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:JVTZGFBB6GOQFRHAON5B576N4P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Directional Variations of Cosmological Parameters from the Planck CMB Data","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Ming-chung Chu, Shek Yeung","submitted_at":"2022-01-11T06:18:51Z","abstract_excerpt":"Recent observations suggest that there are violations of the isotropy of the universe at large scales, an important part of the cosmological principle. In this paper, we use the Cosmic Microwave Background (CMB) data to search for spatial variations of the cosmological parameters in the $\\Lambda\\mathrm{CDM}$ model. We fit the Planck temperature angular power spectrum $\\mathcal{C}^{TT}_\\ell$ for 48 different half-skies, centering on 48 different directions, to search for directional dependences of the standard cosmological parameters. There are $3(2)\\sigma$-level directional variations in $\\Ome"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.03799","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2201.03799/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":"2026-07-05T04:15:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IHvfLzKa/nKyfXS/lBCNvc+nf9wDOZIud4La0tn6vQeOMCxp6JRVwRBZIhKvhOtQoUAruiOlrnPZqL2wsjJkDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T08:52:04.755679Z"},"content_sha256":"719369f255ecb88333b72060ad57b8b497617f6bacc6e5d085b5f912f08c61dc","schema_version":"1.0","event_id":"sha256:719369f255ecb88333b72060ad57b8b497617f6bacc6e5d085b5f912f08c61dc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JVTZGFBB6GOQFRHAON5B576N4P/bundle.json","state_url":"https://pith.science/pith/JVTZGFBB6GOQFRHAON5B576N4P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JVTZGFBB6GOQFRHAON5B576N4P/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":"2026-08-22T08:52:04Z","links":{"resolver":"https://pith.science/pith/JVTZGFBB6GOQFRHAON5B576N4P","bundle":"https://pith.science/pith/JVTZGFBB6GOQFRHAON5B576N4P/bundle.json","state":"https://pith.science/pith/JVTZGFBB6GOQFRHAON5B576N4P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JVTZGFBB6GOQFRHAON5B576N4P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:JVTZGFBB6GOQFRHAON5B576N4P","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":"b48f70d073805586cb35dbc1356357bd5ef8436a554622c13efb587c57d4d929","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-01-11T06:18:51Z","title_canon_sha256":"40cc2c53d544515b1f929c27617cbc0daeb879af077f6f2829514c8b5612ded9"},"schema_version":"1.0","source":{"id":"2201.03799","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.03799","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"arxiv_version","alias_value":"2201.03799v1","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.03799","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"pith_short_12","alias_value":"JVTZGFBB6GOQ","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"pith_short_16","alias_value":"JVTZGFBB6GOQFRHA","created_at":"2026-07-05T04:15:54Z"},{"alias_kind":"pith_short_8","alias_value":"JVTZGFBB","created_at":"2026-07-05T04:15:54Z"}],"graph_snapshots":[{"event_id":"sha256:719369f255ecb88333b72060ad57b8b497617f6bacc6e5d085b5f912f08c61dc","target":"graph","created_at":"2026-07-05T04:15:54Z","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/2201.03799/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent observations suggest that there are violations of the isotropy of the universe at large scales, an important part of the cosmological principle. In this paper, we use the Cosmic Microwave Background (CMB) data to search for spatial variations of the cosmological parameters in the $\\Lambda\\mathrm{CDM}$ model. We fit the Planck temperature angular power spectrum $\\mathcal{C}^{TT}_\\ell$ for 48 different half-skies, centering on 48 different directions, to search for directional dependences of the standard cosmological parameters. There are $3(2)\\sigma$-level directional variations in $\\Ome","authors_text":"Ming-chung Chu, Shek Yeung","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-01-11T06:18:51Z","title":"Directional Variations of Cosmological Parameters from the Planck CMB Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.03799","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":"sha256:7c3da3c7d6a61020df6e24e37321932f8582511af916d24004b728d8d7c6b344","target":"record","created_at":"2026-07-05T04:15:54Z","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":"b48f70d073805586cb35dbc1356357bd5ef8436a554622c13efb587c57d4d929","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-01-11T06:18:51Z","title_canon_sha256":"40cc2c53d544515b1f929c27617cbc0daeb879af077f6f2829514c8b5612ded9"},"schema_version":"1.0","source":{"id":"2201.03799","kind":"arxiv","version":1}},"canonical_sha256":"4d67931421f19d02c4e0737a1effcde3e66455f713c34cf661510ba3d2d79b7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d67931421f19d02c4e0737a1effcde3e66455f713c34cf661510ba3d2d79b7c","first_computed_at":"2026-07-05T04:15:54.019289Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:15:54.019289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XgMMLagzk96rsFyKuc22geCe4Nk1ZkSlyCLeMRP8yHhva3TDjboeSf5JgIUxEBLynMaliAjhHSZmlDvlh2KtBg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:15:54.019813Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.03799","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c3da3c7d6a61020df6e24e37321932f8582511af916d24004b728d8d7c6b344","sha256:719369f255ecb88333b72060ad57b8b497617f6bacc6e5d085b5f912f08c61dc"],"state_sha256":"19b8e67fc3e3629b0272eea5d4503e86a741537a2fd1db9c683be2a6254d5a6c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"km6/ybOej1ALocJOGGoqUzITkCzkM6M+cu2lf2nvgHMpMk/pQ3mqzQo8HbzkxM8WoNdPsbvZtbCnkLlLryQyAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T08:52:04.763406Z","bundle_sha256":"386717119d76c5e64b4f6815df78cc270dc753212907c78ad75f27d242f6b39d"}}