{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BMISOZOYES7C4HIOY3TBRO6ZQM","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":"0f5cdf1890f9d58e625971d703221d368a549b8feddf5036a27a61f3a2573d4b","cross_cats_sorted":["stat.AP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ME","submitted_at":"2025-08-20T15:35:04Z","title_canon_sha256":"c4f0302e0677de23b2326adb3e85f0e797921f0b26045194cd6488cd1aa67667"},"schema_version":"1.0","source":{"id":"2508.14789","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.14789","created_at":"2026-07-05T11:56:38Z"},{"alias_kind":"arxiv_version","alias_value":"2508.14789v1","created_at":"2026-07-05T11:56:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.14789","created_at":"2026-07-05T11:56:38Z"},{"alias_kind":"pith_short_12","alias_value":"BMISOZOYES7C","created_at":"2026-07-05T11:56:38Z"},{"alias_kind":"pith_short_16","alias_value":"BMISOZOYES7C4HIO","created_at":"2026-07-05T11:56:38Z"},{"alias_kind":"pith_short_8","alias_value":"BMISOZOY","created_at":"2026-07-05T11:56:38Z"}],"graph_snapshots":[{"event_id":"sha256:a03a738f0251f2cd302736f3250b11bbe01da8d8161453b76bf24fcb58d87973","target":"graph","created_at":"2026-07-05T11:56:38Z","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/2508.14789/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"How much does a research study contribute to a scientific literature? We propose a learning metric to quantify how much a research community learns from a given study. To do so, we adopt a Bayesian perspective and assess changes in the community's beliefs once updated with a new study's evidence. We recommend the Wasserstein-2 distance as a way to describe how the research community's prior beliefs change to incorporate a study's findings. We illustrate this approach through stylized examples and empirical applications, showing how it differs from more traditional evaluative standards, such as","authors_text":"Donald P. Green, Jonas M. Mikhaeil","cross_cats":["stat.AP"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ME","submitted_at":"2025-08-20T15:35:04Z","title":"Quantifying How Much Has Been Learned from a Research Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.14789","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:df6db79fbfc3385e1cb2fdf29881a50d5b42ddfc869d3167c811d2712a980946","target":"record","created_at":"2026-07-05T11:56:38Z","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":"0f5cdf1890f9d58e625971d703221d368a549b8feddf5036a27a61f3a2573d4b","cross_cats_sorted":["stat.AP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.ME","submitted_at":"2025-08-20T15:35:04Z","title_canon_sha256":"c4f0302e0677de23b2326adb3e85f0e797921f0b26045194cd6488cd1aa67667"},"schema_version":"1.0","source":{"id":"2508.14789","kind":"arxiv","version":1}},"canonical_sha256":"0b112765d824be2e1d0ec6e618bbd98334362c158ade6780d5ba76c4d6e16b79","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b112765d824be2e1d0ec6e618bbd98334362c158ade6780d5ba76c4d6e16b79","first_computed_at":"2026-07-05T11:56:38.548353Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:56:38.548353Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JU7Jp7jkAg82RXB6fBzqyG+dqZf4vASPUfyrHqIGojoQvNE8G2OZ/KCws9jvjAK0CiEzd5iQ8pFzvEwu41fbBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:56:38.548780Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.14789","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df6db79fbfc3385e1cb2fdf29881a50d5b42ddfc869d3167c811d2712a980946","sha256:a03a738f0251f2cd302736f3250b11bbe01da8d8161453b76bf24fcb58d87973"],"state_sha256":"e12e2cbc8b6dd90a7b023fbb55d8a6d835af956e91fbe3f37f39b56dfad93a3c"}