{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TY3G7YQNQ2RZVLUHFDDXXZ2W5B","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":"f2a6beec27b8b3742113b9869927624716d76dd1d8616c20abd46029b19c1dc6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-26T18:00:33Z","title_canon_sha256":"97ee0bd0bf3fb1dcdb08eab52f188075c9f6586d0c09c5907fc38092e82e3d3e"},"schema_version":"1.0","source":{"id":"1908.09856","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.09856","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.09856v2","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.09856","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_12","alias_value":"TY3G7YQNQ2RZ","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_16","alias_value":"TY3G7YQNQ2RZVLUH","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_8","alias_value":"TY3G7YQN","created_at":"2026-07-05T01:05:36Z"}],"graph_snapshots":[{"event_id":"sha256:9a68f824d5d5f4db1832d19ae98898581efaf1b523631afd9c5b1c3d6e317d0e","target":"graph","created_at":"2026-07-05T01:05:36Z","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/1908.09856/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an estimation of the reionization optical depth $\\tau$ from an improved analysis of the High Frequency Instrument (HFI) data of Planck satellite. By using an improved version of the HFI map-making code, we greatly reduce the residual large scale contamination affecting the data, characterized, but not fully removed, in the Planck 2018 legacy release. This brings the dipole distortion systematic effect, contaminating the very low multipoles, below the noise level. On large scale polarization only data, we measure $\\tau=0.0566_{-0.0062}^{+0.0053}$ at $68\\%$ C.L., reducing the Planck 2","authors_text":"J.-L. Puget, J.-M. Delouis, L. Pagano, L. Vibert, S. Mottet","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-26T18:00:33Z","title":"Reionization optical depth determination from Planck HFI data with ten percent accuracy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.09856","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":"sha256:8d8485e783d0bfd5d8633593049681ef18681fb7c112993ec50d96d1b5700fc2","target":"record","created_at":"2026-07-05T01:05:36Z","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":"f2a6beec27b8b3742113b9869927624716d76dd1d8616c20abd46029b19c1dc6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-08-26T18:00:33Z","title_canon_sha256":"97ee0bd0bf3fb1dcdb08eab52f188075c9f6586d0c09c5907fc38092e82e3d3e"},"schema_version":"1.0","source":{"id":"1908.09856","kind":"arxiv","version":2}},"canonical_sha256":"9e366fe20d86a39aae8728c77be756e86f75fa8f0c1b2232ae872289b7c5a927","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e366fe20d86a39aae8728c77be756e86f75fa8f0c1b2232ae872289b7c5a927","first_computed_at":"2026-07-05T01:05:36.178617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:05:36.178617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uzXPWk2b7sTNep+bk8ut5GzfhFN1pdEU5IsrZ4uiLw7Xg2RNUo9JCdVe7MzZ7hMj+Dnsqt2n65Z7D7ZbVd7RBg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:05:36.178962Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.09856","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d8485e783d0bfd5d8633593049681ef18681fb7c112993ec50d96d1b5700fc2","sha256:9a68f824d5d5f4db1832d19ae98898581efaf1b523631afd9c5b1c3d6e317d0e"],"state_sha256":"e3e7e21a058036b1284ac033e46d0bb989b9589a31fa3328a493ce8a2beb83d9"}