{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:X2DEE3QH2EZKWDIIFLVKIIYU7G","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":"e9d644131a759da3ca97546b8241a11400d743a2842416997fea2940b21c4e12","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-04-13T17:49:15Z","title_canon_sha256":"1ffdcaaeeedc9914913a38e13dd012a6b238929d475014bcd94a7e9df8d69a46"},"schema_version":"1.0","source":{"id":"2304.06693","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.06693","created_at":"2026-07-05T06:00:52Z"},{"alias_kind":"arxiv_version","alias_value":"2304.06693v1","created_at":"2026-07-05T06:00:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.06693","created_at":"2026-07-05T06:00:52Z"},{"alias_kind":"pith_short_12","alias_value":"X2DEE3QH2EZK","created_at":"2026-07-05T06:00:52Z"},{"alias_kind":"pith_short_16","alias_value":"X2DEE3QH2EZKWDII","created_at":"2026-07-05T06:00:52Z"},{"alias_kind":"pith_short_8","alias_value":"X2DEE3QH","created_at":"2026-07-05T06:00:52Z"}],"graph_snapshots":[{"event_id":"sha256:891a1c944c826f41056e67263a0d6abc8bf8940864e076d1fb9000d8f23af4d0","target":"graph","created_at":"2026-07-05T06:00:52Z","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/2304.06693/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Tip of the Red Giant Branch (TRGB) provides a luminous standard candle for constructing distance ladders to measure the Hubble constant. In practice its measurements via edge-detection response (EDR) are complicated by the apparent fuzziness of the tip and the multi-peak landscape of the EDR. As a result, it can be difficult to replicate due to a case-by-case measurement process. Previously we optimized an unsupervised algorithm, Comparative Analysis of TRGBs (CATs), to minimize the variance among multiple halo fields per host without reliance on individualized choices, achieving state-of-","authors_text":"A. G. Riess, D. Scolnic, G. S. Anand, J. Wu, R. Anderson, R. Beaton, S. Casertano, S. Dhawan, S. Li, X. Ke","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-04-13T17:49:15Z","title":"CATS: The Hubble Constant from Standardized TRGB and Type Ia Supernova Measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.06693","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:d6509b885f79994eb3fc197cba8924c394559debab6002e23ac319c7f4011fd8","target":"record","created_at":"2026-07-05T06:00:52Z","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":"e9d644131a759da3ca97546b8241a11400d743a2842416997fea2940b21c4e12","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-04-13T17:49:15Z","title_canon_sha256":"1ffdcaaeeedc9914913a38e13dd012a6b238929d475014bcd94a7e9df8d69a46"},"schema_version":"1.0","source":{"id":"2304.06693","kind":"arxiv","version":1}},"canonical_sha256":"be86426e07d132ab0d082aeaa42314f9b4acddebb4bc3b04951c5d102c93ab8d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be86426e07d132ab0d082aeaa42314f9b4acddebb4bc3b04951c5d102c93ab8d","first_computed_at":"2026-07-05T06:00:52.832166Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:00:52.832166Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4HF4yuZADPM7Cvaa5vx8J/hFqg/kQd9+S3C/+xZaOVgXfgtHd8lCYjLQR4zQR4dNRBT2s4I1k7cis+AAIzfZCg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:00:52.832586Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.06693","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6509b885f79994eb3fc197cba8924c394559debab6002e23ac319c7f4011fd8","sha256:891a1c944c826f41056e67263a0d6abc8bf8940864e076d1fb9000d8f23af4d0"],"state_sha256":"85e3c653fb32e622028df2a565c776b08513f3101c4f41a5bd5731b91b5a028f"}