{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:CEXTSSMBAG2EQCLKV5TVTMUYQ3","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":"f939e6ed00be5fb517e02a77e5dca48294ff5a9ac7ac79fe63eef72ff41b07e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-05-21T15:16:34Z","title_canon_sha256":"ccc9c5f9b38a34404ab24dd8f5296150d55b770e624a34cbfe9bc48bc39c803d"},"schema_version":"1.0","source":{"id":"1305.4853","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1305.4853","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"1305.4853v1","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1305.4853","created_at":"2026-05-18T03:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"CEXTSSMBAG2E","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"CEXTSSMBAG2EQCLK","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"CEXTSSMB","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:8daec7ce16f50623ef2f376fbb7e217557246ac060e5a5fb145ad25a39de6f0b","target":"graph","created_at":"2026-05-18T03:25:15Z","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":"We review N=(2,2) supersymmetric non-linear sigma-models in two dimensions and their relation to generalized Kahler and Calabi-Yau geometry. We illustrate this with an explicit non-trivial example.","authors_text":"Alexander Sevrin, Daniel C. Thompson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-05-21T15:16:34Z","title":"N = (2, 2) Non-Linear sigma-Models: A Synopsis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.4853","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":"sha256:6e3a13fd3895b91840317563f1281094919dc7902e37c5ef8ee356085b098ef9","target":"record","created_at":"2026-05-18T03:25:15Z","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":"f939e6ed00be5fb517e02a77e5dca48294ff5a9ac7ac79fe63eef72ff41b07e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2013-05-21T15:16:34Z","title_canon_sha256":"ccc9c5f9b38a34404ab24dd8f5296150d55b770e624a34cbfe9bc48bc39c803d"},"schema_version":"1.0","source":{"id":"1305.4853","kind":"arxiv","version":1}},"canonical_sha256":"112f39498101b448096aaf6759b29886d15e3593f55ba64677d2856798966873","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"112f39498101b448096aaf6759b29886d15e3593f55ba64677d2856798966873","first_computed_at":"2026-05-18T03:25:15.120775Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:25:15.120775Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KNqSartFCeQFuQl3cadxuLWd6Is0GMMHxncDj4/ThW2JXBFhIE5KntTP/jQBRQ6ShndSHUfw+RlEKyQWcKyOCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:25:15.121219Z","signed_message":"canonical_sha256_bytes"},"source_id":"1305.4853","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e3a13fd3895b91840317563f1281094919dc7902e37c5ef8ee356085b098ef9","sha256:8daec7ce16f50623ef2f376fbb7e217557246ac060e5a5fb145ad25a39de6f0b"],"state_sha256":"1c5a62a3ce26d3e7a961ef3b462209127de585c7c6882c923d88bfe7b05da693"}