{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:5SHYEEYF37LL6A7PPE4QEKQK54","short_pith_number":"pith:5SHYEEYF","schema_version":"1.0","canonical_sha256":"ec8f821305dfd6bf03ef7939022a0aef191438058eab6071801914935d8026d7","source":{"kind":"arxiv","id":"1907.09098","version":1},"attestation_state":"computed","paper":{"title":"Uncertainty About Evidence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LO","authors_text":"Adam Bjorndahl (Carnegie Mellon University), Ayb\\\"uke \\\"Ozg\\\"un (ILLC, University of Amsterdam & Arch\\'e, University of St. Andrews)","submitted_at":"2019-07-22T03:13:41Z","abstract_excerpt":"We develop a logical framework for reasoning about knowledge and evidence in which the agent may be uncertain about how to interpret their evidence. Rather than representing an evidential state as a fixed subset of the state space, our models allow the set of possible worlds that a piece of evidence corresponds to to vary from one possible world to another, and therefore itself be the subject of uncertainty. Such structures can be viewed as (epistemically motivated) generalizations of topological spaces. In this context, there arises a natural distinction between what is actually entailed by t"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1907.09098","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2019-07-22T03:13:41Z","cross_cats_sorted":[],"title_canon_sha256":"fd184cbf7a7d24f00fd0e7b0d08d341a973198e1db491bc7dcb45a70e48a17b1","abstract_canon_sha256":"7ffdc5bc6f3b4789aa3d164e2f05e16c80ddb5143ad2b139c885d4d4b7a5207d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:00.187485Z","signature_b64":"/39j9AIa/31olVjD8NgaVJ6l24XptyL4nr7xkyo2oA7/hxAJ28/Er+mMGin1HqtleBNtVjmUiIKVgBClRpxBAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec8f821305dfd6bf03ef7939022a0aef191438058eab6071801914935d8026d7","last_reissued_at":"2026-05-17T23:40:00.186857Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:00.186857Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Uncertainty About Evidence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LO","authors_text":"Adam Bjorndahl (Carnegie Mellon University), Ayb\\\"uke \\\"Ozg\\\"un (ILLC, University of Amsterdam & Arch\\'e, University of St. Andrews)","submitted_at":"2019-07-22T03:13:41Z","abstract_excerpt":"We develop a logical framework for reasoning about knowledge and evidence in which the agent may be uncertain about how to interpret their evidence. Rather than representing an evidential state as a fixed subset of the state space, our models allow the set of possible worlds that a piece of evidence corresponds to to vary from one possible world to another, and therefore itself be the subject of uncertainty. Such structures can be viewed as (epistemically motivated) generalizations of topological spaces. In this context, there arises a natural distinction between what is actually entailed by t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.09098","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1907.09098","created_at":"2026-05-17T23:40:00.186957+00:00"},{"alias_kind":"arxiv_version","alias_value":"1907.09098v1","created_at":"2026-05-17T23:40:00.186957+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.09098","created_at":"2026-05-17T23:40:00.186957+00:00"},{"alias_kind":"pith_short_12","alias_value":"5SHYEEYF37LL","created_at":"2026-05-18T12:33:10.108867+00:00"},{"alias_kind":"pith_short_16","alias_value":"5SHYEEYF37LL6A7P","created_at":"2026-05-18T12:33:10.108867+00:00"},{"alias_kind":"pith_short_8","alias_value":"5SHYEEYF","created_at":"2026-05-18T12:33:10.108867+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54","json":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54.json","graph_json":"https://pith.science/api/pith-number/5SHYEEYF37LL6A7PPE4QEKQK54/graph.json","events_json":"https://pith.science/api/pith-number/5SHYEEYF37LL6A7PPE4QEKQK54/events.json","paper":"https://pith.science/paper/5SHYEEYF"},"agent_actions":{"view_html":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54","download_json":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54.json","view_paper":"https://pith.science/paper/5SHYEEYF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1907.09098&json=true","fetch_graph":"https://pith.science/api/pith-number/5SHYEEYF37LL6A7PPE4QEKQK54/graph.json","fetch_events":"https://pith.science/api/pith-number/5SHYEEYF37LL6A7PPE4QEKQK54/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54/action/storage_attestation","attest_author":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54/action/author_attestation","sign_citation":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54/action/citation_signature","submit_replication":"https://pith.science/pith/5SHYEEYF37LL6A7PPE4QEKQK54/action/replication_record"}},"created_at":"2026-05-17T23:40:00.186957+00:00","updated_at":"2026-05-17T23:40:00.186957+00:00"}