{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JSJ2W73KIXZDEKOXWXGPYM2KGC","short_pith_number":"pith:JSJ2W73K","canonical_record":{"source":{"id":"1310.3711","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-14T15:00:43Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"9077425f78c81296be093d211abcd72581b4a5c9e1c42dca450fe56e85318085","abstract_canon_sha256":"32f9a22235aedad32f18d18932d38180ca67b1cd59643ad8c6f9dfba1ccf4d6e"},"schema_version":"1.0"},"canonical_sha256":"4c93ab7f6a45f23229d7b5ccfc334a30ba42b3e0f6a3e5a44db9bcb73a07d268","source":{"kind":"arxiv","id":"1310.3711","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3711","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3711v2","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3711","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"pith_short_12","alias_value":"JSJ2W73KIXZD","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JSJ2W73KIXZDEKOX","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JSJ2W73K","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JSJ2W73KIXZDEKOXWXGPYM2KGC","target":"record","payload":{"canonical_record":{"source":{"id":"1310.3711","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-14T15:00:43Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"9077425f78c81296be093d211abcd72581b4a5c9e1c42dca450fe56e85318085","abstract_canon_sha256":"32f9a22235aedad32f18d18932d38180ca67b1cd59643ad8c6f9dfba1ccf4d6e"},"schema_version":"1.0"},"canonical_sha256":"4c93ab7f6a45f23229d7b5ccfc334a30ba42b3e0f6a3e5a44db9bcb73a07d268","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:58:56.695475Z","signature_b64":"0wE/eLO9rvkm5CDt1i60Cfha0QWnVxpT1y5hxUivOrVymGVES1ffxjBbamrzCQ+nAPhEvpHyxOju4jfB8FENCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4c93ab7f6a45f23229d7b5ccfc334a30ba42b3e0f6a3e5a44db9bcb73a07d268","last_reissued_at":"2026-05-18T02:58:56.694931Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:58:56.694931Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.3711","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:58:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7i8QSkMbfNiZk81WlCW1jT+z/YTgIXHUPQJ57/gHAHFF5KW/HTx8cbJ9pFe1YKicaaHrOwLLcKAVutZcEUguDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:51:57.240416Z"},"content_sha256":"d8110e6e9d1c0b8bd18b20438c11f659e899988120e58de3fe192f11baa10439","schema_version":"1.0","event_id":"sha256:d8110e6e9d1c0b8bd18b20438c11f659e899988120e58de3fe192f11baa10439"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JSJ2W73KIXZDEKOXWXGPYM2KGC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modulation of CMB polarization with a warm rapidly-rotating half-wave plate on the Atacama B-Mode Search (ABS) instrument","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"A. Kusaka, J. L. Sievers, J. W. Appel, K. D. Irwin, K. Visnjic (the ABS Collaboration), L. A. Page, L. P. Parker, M. R. Nolta, N. Jarosik, P. Gallardo, S. M. Simon, S. Raghunathan, S. T. Staggs, T. Essinger-Hileman","submitted_at":"2013-10-14T15:00:43Z","abstract_excerpt":"We evaluate the modulation of Cosmic Microwave Background (CMB) polarization using a rapidly-rotating, half-wave plate (HWP) on the Atacama B-Mode Search (ABS). After demodulating the time-ordered-data (TOD), we find a significant reduction of atmospheric fluctuations. The demodulated TOD is stable on time scales of 500-1000 seconds, corresponding to frequencies of 1-2 mHz. This facilitates recovery of cosmological information at large angular scales, which are typically available only from balloon-borne or satellite experiments. This technique also achieves a sensitive measurement of celestia"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3711","kind":"arxiv","version":2},"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":"2026-05-18T02:58:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7XXqJFuhSnIdR/4wdugbvciOOKCGRjkZPECRJixX+clOPPFsx85zCPLe+3/jiT7q3J0EcT7dlYiDAYU1SxaFAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:51:57.240769Z"},"content_sha256":"7defd131eeaf07db2ec8431fe8e4f822cf3bb58917599bf8e0811c6a1ec840da","schema_version":"1.0","event_id":"sha256:7defd131eeaf07db2ec8431fe8e4f822cf3bb58917599bf8e0811c6a1ec840da"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JSJ2W73KIXZDEKOXWXGPYM2KGC/bundle.json","state_url":"https://pith.science/pith/JSJ2W73KIXZDEKOXWXGPYM2KGC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JSJ2W73KIXZDEKOXWXGPYM2KGC/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":"2026-06-01T06:51:57Z","links":{"resolver":"https://pith.science/pith/JSJ2W73KIXZDEKOXWXGPYM2KGC","bundle":"https://pith.science/pith/JSJ2W73KIXZDEKOXWXGPYM2KGC/bundle.json","state":"https://pith.science/pith/JSJ2W73KIXZDEKOXWXGPYM2KGC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JSJ2W73KIXZDEKOXWXGPYM2KGC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JSJ2W73KIXZDEKOXWXGPYM2KGC","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":"32f9a22235aedad32f18d18932d38180ca67b1cd59643ad8c6f9dfba1ccf4d6e","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-14T15:00:43Z","title_canon_sha256":"9077425f78c81296be093d211abcd72581b4a5c9e1c42dca450fe56e85318085"},"schema_version":"1.0","source":{"id":"1310.3711","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3711","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3711v2","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3711","created_at":"2026-05-18T02:58:56Z"},{"alias_kind":"pith_short_12","alias_value":"JSJ2W73KIXZD","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JSJ2W73KIXZDEKOX","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JSJ2W73K","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:7defd131eeaf07db2ec8431fe8e4f822cf3bb58917599bf8e0811c6a1ec840da","target":"graph","created_at":"2026-05-18T02:58:56Z","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":"We evaluate the modulation of Cosmic Microwave Background (CMB) polarization using a rapidly-rotating, half-wave plate (HWP) on the Atacama B-Mode Search (ABS). After demodulating the time-ordered-data (TOD), we find a significant reduction of atmospheric fluctuations. The demodulated TOD is stable on time scales of 500-1000 seconds, corresponding to frequencies of 1-2 mHz. This facilitates recovery of cosmological information at large angular scales, which are typically available only from balloon-borne or satellite experiments. This technique also achieves a sensitive measurement of celestia","authors_text":"A. Kusaka, J. L. Sievers, J. W. Appel, K. D. Irwin, K. Visnjic (the ABS Collaboration), L. A. Page, L. P. Parker, M. R. Nolta, N. Jarosik, P. Gallardo, S. M. Simon, S. Raghunathan, S. T. Staggs, T. Essinger-Hileman","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-14T15:00:43Z","title":"Modulation of CMB polarization with a warm rapidly-rotating half-wave plate on the Atacama B-Mode Search (ABS) instrument"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3711","kind":"arxiv","version":2},"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:d8110e6e9d1c0b8bd18b20438c11f659e899988120e58de3fe192f11baa10439","target":"record","created_at":"2026-05-18T02:58:56Z","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":"32f9a22235aedad32f18d18932d38180ca67b1cd59643ad8c6f9dfba1ccf4d6e","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-14T15:00:43Z","title_canon_sha256":"9077425f78c81296be093d211abcd72581b4a5c9e1c42dca450fe56e85318085"},"schema_version":"1.0","source":{"id":"1310.3711","kind":"arxiv","version":2}},"canonical_sha256":"4c93ab7f6a45f23229d7b5ccfc334a30ba42b3e0f6a3e5a44db9bcb73a07d268","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c93ab7f6a45f23229d7b5ccfc334a30ba42b3e0f6a3e5a44db9bcb73a07d268","first_computed_at":"2026-05-18T02:58:56.694931Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:58:56.694931Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0wE/eLO9rvkm5CDt1i60Cfha0QWnVxpT1y5hxUivOrVymGVES1ffxjBbamrzCQ+nAPhEvpHyxOju4jfB8FENCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:58:56.695475Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.3711","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8110e6e9d1c0b8bd18b20438c11f659e899988120e58de3fe192f11baa10439","sha256:7defd131eeaf07db2ec8431fe8e4f822cf3bb58917599bf8e0811c6a1ec840da"],"state_sha256":"c911ff3b88334a42e6b78d2c327fe7423367baf9a340fd7c96a93c2a9d57f2e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B5p4A0xHLCE5GFHQpxKRhnaXGFCYVacZ0tlBpa9kkTapo+K0QY5mL4BQu1Km8ETPEdYdTAUxn3TreqSw0dR/Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T06:51:57.242755Z","bundle_sha256":"917cbe75635b9983a95cd7be0aebeb4673139feeca531bc14e034805a4b3028f"}}