{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WLFS5ETWW4TCKTE4HFHOYWM4YI","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":"19d9bf50e14b0c4172bfac4896b7d0496828f155d04b528a5759867273ef2d98","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2014-03-13T18:20:10Z","title_canon_sha256":"7a4ccd4f8bd27fdd43f84005f35d9eb4f3488eca16dc872ff67585bdb0c3dba2"},"schema_version":"1.0","source":{"id":"1403.3351","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.3351","created_at":"2026-05-18T02:56:21Z"},{"alias_kind":"arxiv_version","alias_value":"1403.3351v1","created_at":"2026-05-18T02:56:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.3351","created_at":"2026-05-18T02:56:21Z"},{"alias_kind":"pith_short_12","alias_value":"WLFS5ETWW4TC","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WLFS5ETWW4TCKTE4","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WLFS5ETW","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:65e99b72f5ef42b28066209e0a6c3aa5e85f10be40b7ec12f471afb76af49704","target":"graph","created_at":"2026-05-18T02:56:21Z","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"},"paper":{"abstract_excerpt":"Language is contextual and sheaf theory provides a high level mathematical framework to model contextuality. We show how sheaf theory can model the contextual nature of natural language and how gluing can be used to provide a global semantics for a discourse by putting together the local logical semantics of each sentence within the discourse. We introduce a presheaf structure corresponding to a basic form of Discourse Representation Structures. Within this setting, we formulate a notion of semantic unification --- gluing meanings of parts of a discourse into a coherent whole --- as a form of ","authors_text":"Mehrnoosh Sadrzadeh, Samson Abramsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2014-03-13T18:20:10Z","title":"Semantic Unification A sheaf theoretic approach to natural language"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.3351","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":"sha256:5ddcf23fdd8c035fe899747c0c4d409d95bf0ae11bef2fb8a436843fd58094f3","target":"record","created_at":"2026-05-18T02:56:21Z","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":"19d9bf50e14b0c4172bfac4896b7d0496828f155d04b528a5759867273ef2d98","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2014-03-13T18:20:10Z","title_canon_sha256":"7a4ccd4f8bd27fdd43f84005f35d9eb4f3488eca16dc872ff67585bdb0c3dba2"},"schema_version":"1.0","source":{"id":"1403.3351","kind":"arxiv","version":1}},"canonical_sha256":"b2cb2e9276b726254c9c394eec599cc215cb87660801013551764b7ded14085a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2cb2e9276b726254c9c394eec599cc215cb87660801013551764b7ded14085a","first_computed_at":"2026-05-18T02:56:21.679360Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:56:21.679360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PDay6wGvWYUKO/Z9yj9e+hrRNgjlm1GWdWC5TInSRDZjQyFmo17tBJnfTNljL8Ffr/vOE00Vxv3YvOZtj60PCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:56:21.679988Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.3351","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ddcf23fdd8c035fe899747c0c4d409d95bf0ae11bef2fb8a436843fd58094f3","sha256:65e99b72f5ef42b28066209e0a6c3aa5e85f10be40b7ec12f471afb76af49704"],"state_sha256":"75ecff9659e95c6f382fa8135ef0949587b3300cc7b4744b517f59feeb32a2de"}