{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:EYF23DX6AEKJGVQY2KIJA6TXFF","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":"01ea68ab07e684744294d7c4ca3c2aedb59be0955716408070307e3211177ed3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-08T17:59:56Z","title_canon_sha256":"0c3b99b282fa06076228b9dc4943e53ed5b5ed69657553107b9c30c54a1ce460"},"schema_version":"1.0","source":{"id":"2109.03816","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.03816","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"arxiv_version","alias_value":"2109.03816v1","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.03816","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_12","alias_value":"EYF23DX6AEKJ","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_16","alias_value":"EYF23DX6AEKJGVQY","created_at":"2026-07-05T03:51:09Z"},{"alias_kind":"pith_short_8","alias_value":"EYF23DX6","created_at":"2026-07-05T03:51:09Z"}],"graph_snapshots":[{"event_id":"sha256:d8f7e21d12a85f56a4d06bb72a08d7ef1939b802e595a694eeeedbc26a19e7f7","target":"graph","created_at":"2026-07-05T03:51:09Z","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/2109.03816/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Primordial magnetic fields can change the recombination history of the universe by inducing clumping in the baryon density at small scales. They were recently proposed as a candidate model to relieve the Hubble tension. We investigate the consistency of the constraints on a clumping factor parameter $b$ in a simplistic model, using the latest CMB data from Planck, ACT DR4 and SPT-3G 2018. For the combined CMB data alone, we find no evidence for clumping being different from zero, though when adding a prior on $H_0$ based on the latest distance-ladder analysis of the SH0ES team, we report a wea","authors_text":"Karsten Jedamzik, Lennart Balkenhol, Levon Pogosian, Silvia Galli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-08T17:59:56Z","title":"Consistency of Planck, ACT and SPT constraints on magnetically assisted recombination and forecasts for future experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.03816","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":"sha256:9df9867034d72d67e7f3c936103f12d6388b208b9bdc453a05633ddfbe8fdc8f","target":"record","created_at":"2026-07-05T03:51:09Z","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":"01ea68ab07e684744294d7c4ca3c2aedb59be0955716408070307e3211177ed3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-09-08T17:59:56Z","title_canon_sha256":"0c3b99b282fa06076228b9dc4943e53ed5b5ed69657553107b9c30c54a1ce460"},"schema_version":"1.0","source":{"id":"2109.03816","kind":"arxiv","version":1}},"canonical_sha256":"260bad8efe0114935618d290907a77296067d00625f167b8b350b87b2c668ab3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"260bad8efe0114935618d290907a77296067d00625f167b8b350b87b2c668ab3","first_computed_at":"2026-07-05T03:51:09.567303Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:51:09.567303Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"caS72KmAiiYAyHwxuroO9tus0oDR+SkxrAtDVKfDLfep4mNCcZ07opAG61b0r0dYh9hwZdZDx5hoqDJoK0YNAg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:51:09.567823Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.03816","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9df9867034d72d67e7f3c936103f12d6388b208b9bdc453a05633ddfbe8fdc8f","sha256:d8f7e21d12a85f56a4d06bb72a08d7ef1939b802e595a694eeeedbc26a19e7f7"],"state_sha256":"9057fb482ddfb2d712e1a7796d2697a195a153207b5125249b372e1ea15a2fa1"}