{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:DOCHQ3SIOLWMNSHU36CWKQ5QZY","short_pith_number":"pith:DOCHQ3SI","canonical_record":{"source":{"id":"2303.04180","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-03-07T19:04:25Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"b2f56bc6ca364839061671f3a82e7d7bc9316fe21e7ad352ec75b25742897b39","abstract_canon_sha256":"5296664da78c6ff9033a5fe15b472e225fb9dd5451aeb7a05478be6e868b1e3f"},"schema_version":"1.0"},"canonical_sha256":"1b84786e4872ecc6c8f4df856543b0ce15b962de880ce39e3d908d8f96a72cff","source":{"kind":"arxiv","id":"2303.04180","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.04180","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"arxiv_version","alias_value":"2303.04180v1","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.04180","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"pith_short_12","alias_value":"DOCHQ3SIOLWM","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"pith_short_16","alias_value":"DOCHQ3SIOLWMNSHU","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"pith_short_8","alias_value":"DOCHQ3SI","created_at":"2026-07-05T08:57:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:DOCHQ3SIOLWMNSHU36CWKQ5QZY","target":"record","payload":{"canonical_record":{"source":{"id":"2303.04180","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-03-07T19:04:25Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"b2f56bc6ca364839061671f3a82e7d7bc9316fe21e7ad352ec75b25742897b39","abstract_canon_sha256":"5296664da78c6ff9033a5fe15b472e225fb9dd5451aeb7a05478be6e868b1e3f"},"schema_version":"1.0"},"canonical_sha256":"1b84786e4872ecc6c8f4df856543b0ce15b962de880ce39e3d908d8f96a72cff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:57:22.306029Z","signature_b64":"IBUUoZC60iLeUJa7exziicKuvVt/2jxIlkgT3COc5VAPPsEyvn5sbHXEAJQsKiOmFXS6YDg9LxvJ2pQ+b0KvBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b84786e4872ecc6c8f4df856543b0ce15b962de880ce39e3d908d8f96a72cff","last_reissued_at":"2026-07-05T08:57:22.305457Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:57:22.305457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.04180","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":"2026-07-05T08:57:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OpG933Gu6jpoMNQxovp4AQUvrGytyLa3FPeltWwMX/BMuUzj+93ZdudG6aU8tFJBf1RjSK6txWKrs1TUeosEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-24T19:00:39.904240Z"},"content_sha256":"9ec0ffdee5b1a2552fbba228262955a49c1c3017656b82f0d67d82d7a0b9c3ee","schema_version":"1.0","event_id":"sha256:9ec0ffdee5b1a2552fbba228262955a49c1c3017656b82f0d67d82d7a0b9c3ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:DOCHQ3SIOLWMNSHU36CWKQ5QZY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Atacama Cosmology Telescope: Map-Based Noise Simulations for DR6","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"Adriaan J. Duivenvoorden, Adrien La Posta, Carlos Herv\\'ias-Caimapo, Cristian Vargas, Crist\\'obal Sif\\'on, Edward J. Wollack, Erminia Calabrese, Eve M. Vavagiakis, Federico Nati, Frank J. Qu, Grace E. Chesmore, Jo Dunkley, Kavilan Moodley, Lyman Page, Maria Salatino, Mark J. Devlin, Mathew S. Madhavacheril, Michael D. Niemack, Roberto Puddu, Sigurd Naess, Simone Aiola, Steve K. Choi, Suzanne T. Staggs, Thibaut Louis, William R. Coulton, Yilun Guan, Zachary Atkins, Zack Li","submitted_at":"2023-03-07T19:04:25Z","abstract_excerpt":"The increasing statistical power of cosmic microwave background (CMB) datasets requires a commensurate effort in understanding their noise properties. The noise in maps from ground-based instruments is dominated by large-scale correlations, which poses a modeling challenge. This paper develops novel models of the complex noise covariance structure in the Atacama Cosmology Telescope Data Release 6 (ACT DR6) maps. We first enumerate the noise properties that arise from the combination of the atmosphere and the ACT scan strategy. We then prescribe a class of Gaussian, map-based noise models, incl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.04180","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/2303.04180/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":"2026-07-05T08:57:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ehXJN0RFiSutgr9KQQxlpjQwX4h7Q2HbqoDKynzFIg0Jk9m5yRYiOttPB2+jQlRL6aCegLUTyKxrGxlZCiYWDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-24T19:00:39.904643Z"},"content_sha256":"c2fddc8aa83435bfca76c54688f8397183d136f39472470f664c32c826858b3d","schema_version":"1.0","event_id":"sha256:c2fddc8aa83435bfca76c54688f8397183d136f39472470f664c32c826858b3d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DOCHQ3SIOLWMNSHU36CWKQ5QZY/bundle.json","state_url":"https://pith.science/pith/DOCHQ3SIOLWMNSHU36CWKQ5QZY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DOCHQ3SIOLWMNSHU36CWKQ5QZY/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":"2026-07-24T19:00:39Z","links":{"resolver":"https://pith.science/pith/DOCHQ3SIOLWMNSHU36CWKQ5QZY","bundle":"https://pith.science/pith/DOCHQ3SIOLWMNSHU36CWKQ5QZY/bundle.json","state":"https://pith.science/pith/DOCHQ3SIOLWMNSHU36CWKQ5QZY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DOCHQ3SIOLWMNSHU36CWKQ5QZY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:DOCHQ3SIOLWMNSHU36CWKQ5QZY","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":"5296664da78c6ff9033a5fe15b472e225fb9dd5451aeb7a05478be6e868b1e3f","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-03-07T19:04:25Z","title_canon_sha256":"b2f56bc6ca364839061671f3a82e7d7bc9316fe21e7ad352ec75b25742897b39"},"schema_version":"1.0","source":{"id":"2303.04180","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.04180","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"arxiv_version","alias_value":"2303.04180v1","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.04180","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"pith_short_12","alias_value":"DOCHQ3SIOLWM","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"pith_short_16","alias_value":"DOCHQ3SIOLWMNSHU","created_at":"2026-07-05T08:57:22Z"},{"alias_kind":"pith_short_8","alias_value":"DOCHQ3SI","created_at":"2026-07-05T08:57:22Z"}],"graph_snapshots":[{"event_id":"sha256:c2fddc8aa83435bfca76c54688f8397183d136f39472470f664c32c826858b3d","target":"graph","created_at":"2026-07-05T08:57:22Z","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/2303.04180/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The increasing statistical power of cosmic microwave background (CMB) datasets requires a commensurate effort in understanding their noise properties. The noise in maps from ground-based instruments is dominated by large-scale correlations, which poses a modeling challenge. This paper develops novel models of the complex noise covariance structure in the Atacama Cosmology Telescope Data Release 6 (ACT DR6) maps. We first enumerate the noise properties that arise from the combination of the atmosphere and the ACT scan strategy. We then prescribe a class of Gaussian, map-based noise models, incl","authors_text":"Adriaan J. Duivenvoorden, Adrien La Posta, Carlos Herv\\'ias-Caimapo, Cristian Vargas, Crist\\'obal Sif\\'on, Edward J. Wollack, Erminia Calabrese, Eve M. Vavagiakis, Federico Nati, Frank J. Qu, Grace E. Chesmore, Jo Dunkley, Kavilan Moodley, Lyman Page, Maria Salatino, Mark J. Devlin, Mathew S. Madhavacheril, Michael D. Niemack, Roberto Puddu, Sigurd Naess, Simone Aiola, Steve K. Choi, Suzanne T. Staggs, Thibaut Louis, William R. Coulton, Yilun Guan, Zachary Atkins, Zack Li","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-03-07T19:04:25Z","title":"The Atacama Cosmology Telescope: Map-Based Noise Simulations for DR6"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.04180","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":"sha256:9ec0ffdee5b1a2552fbba228262955a49c1c3017656b82f0d67d82d7a0b9c3ee","target":"record","created_at":"2026-07-05T08:57:22Z","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":"5296664da78c6ff9033a5fe15b472e225fb9dd5451aeb7a05478be6e868b1e3f","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-03-07T19:04:25Z","title_canon_sha256":"b2f56bc6ca364839061671f3a82e7d7bc9316fe21e7ad352ec75b25742897b39"},"schema_version":"1.0","source":{"id":"2303.04180","kind":"arxiv","version":1}},"canonical_sha256":"1b84786e4872ecc6c8f4df856543b0ce15b962de880ce39e3d908d8f96a72cff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b84786e4872ecc6c8f4df856543b0ce15b962de880ce39e3d908d8f96a72cff","first_computed_at":"2026-07-05T08:57:22.305457Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:57:22.305457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IBUUoZC60iLeUJa7exziicKuvVt/2jxIlkgT3COc5VAPPsEyvn5sbHXEAJQsKiOmFXS6YDg9LxvJ2pQ+b0KvBg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:57:22.306029Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.04180","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ec0ffdee5b1a2552fbba228262955a49c1c3017656b82f0d67d82d7a0b9c3ee","sha256:c2fddc8aa83435bfca76c54688f8397183d136f39472470f664c32c826858b3d"],"state_sha256":"407f00648c56d58de6b578981ee9657abb8f097a1caa6fc0340a88239a59a224"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SS7Lk2OsmhPerYo7yw6eoSlIeBo46WOKhGVsSSfIT4On+3zKJ+zz3Aus7fcWEdc11gcz5tYAlEGcJ5U6FMDYDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-24T19:00:39.907236Z","bundle_sha256":"3963630720c9829b0af73d5d71c3259bfeb0d9df1f63c49932c1595b4a0e9b23"}}