{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:E42FJLU3BP6TCRE3LAQRMOCZ4E","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":"f98f76c8daac081033aa7e3e7193ba27d3c275658b8fc2ee515581a785e94a27","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-09-17T17:59:46Z","title_canon_sha256":"1bfe00cfadfe72b4ad8002cde3bbfcad95ed987edfda8d6bebd09bb0c61f07b9"},"schema_version":"1.0","source":{"id":"2009.08455","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.08455","created_at":"2026-07-05T01:54:31Z"},{"alias_kind":"arxiv_version","alias_value":"2009.08455v2","created_at":"2026-07-05T01:54:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.08455","created_at":"2026-07-05T01:54:31Z"},{"alias_kind":"pith_short_12","alias_value":"E42FJLU3BP6T","created_at":"2026-07-05T01:54:31Z"},{"alias_kind":"pith_short_16","alias_value":"E42FJLU3BP6TCRE3","created_at":"2026-07-05T01:54:31Z"},{"alias_kind":"pith_short_8","alias_value":"E42FJLU3","created_at":"2026-07-05T01:54:31Z"}],"graph_snapshots":[{"event_id":"sha256:71c77686e33d9444b8ea476def0dee7f12d3ffd764e7e00d95fe4379a3124bd5","target":"graph","created_at":"2026-07-05T01:54:31Z","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/2009.08455/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Hubble tension and attempts to resolve it by modifying the physics of (or at) recombination motivate finding ways to determine $H_0$ and the sound horizon at the epoch of baryon decoupling $r_{\\rm d}$ in ways that neither rely on a recombination model nor on late-time Hubble data. In this work, we investigate what one can learn from the current and future BAO data when treating $r_{\\rm d}$ and $H_0$ as independent free parameters. It is well known that BAO gives exquisite constraints on the product $r_{\\rm d}H_0$. We show here that imposing a moderate prior on $\\Omega_{\\rm m} h^2$ breaks t","authors_text":"Gong-Bo Zhao, Karsten Jedamzik, Levon Pogosian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-09-17T17:59:46Z","title":"Recombination-independent determination of the sound horizon and the Hubble constant from BAO"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.08455","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":"sha256:0d36e16f3203eadabd36e763db2f412eb9fb9aecd3b20fa46671c26c08172003","target":"record","created_at":"2026-07-05T01:54:31Z","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":"f98f76c8daac081033aa7e3e7193ba27d3c275658b8fc2ee515581a785e94a27","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-09-17T17:59:46Z","title_canon_sha256":"1bfe00cfadfe72b4ad8002cde3bbfcad95ed987edfda8d6bebd09bb0c61f07b9"},"schema_version":"1.0","source":{"id":"2009.08455","kind":"arxiv","version":2}},"canonical_sha256":"273454ae9b0bfd31449b5821163859e103f070a0e795bbe1abaed5c34d4aad9b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"273454ae9b0bfd31449b5821163859e103f070a0e795bbe1abaed5c34d4aad9b","first_computed_at":"2026-07-05T01:54:31.035221Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:54:31.035221Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N0EmEZu1sTWEpPqZfV7JcP0YA8kHDAUdxPQnZp4JbDYMbOUp4dWN74+5aU159pAiIO95mnvuvC6O9l2exP8RBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:54:31.035660Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.08455","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0d36e16f3203eadabd36e763db2f412eb9fb9aecd3b20fa46671c26c08172003","sha256:71c77686e33d9444b8ea476def0dee7f12d3ffd764e7e00d95fe4379a3124bd5"],"state_sha256":"37ce9682e9523b7efadf974a643a15caffd2f8c3ef267f92bad3edd015b32ccd"}