{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:6XZPNWD4RMCDD7EG7MX2ECN2S7","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":"d0db918fb872c89878c9d72aebdd8a104f3d55d6ad8bb79fcca935acf32c4325","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-05-29T16:09:21Z","title_canon_sha256":"2fa8255ee831685961ff9c4d923fdf1e75997ce6fb915ab05355ea84a83b5dff"},"schema_version":"1.0","source":{"id":"0805.4571","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0805.4571","created_at":"2026-05-18T02:35:22Z"},{"alias_kind":"arxiv_version","alias_value":"0805.4571v2","created_at":"2026-05-18T02:35:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0805.4571","created_at":"2026-05-18T02:35:22Z"},{"alias_kind":"pith_short_12","alias_value":"6XZPNWD4RMCD","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"6XZPNWD4RMCDD7EG","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"6XZPNWD4","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:7fc07b40a5211c2e3a0cfc0b1bc08828a6c319e6ea050bd3c8b604f1052925fd","target":"graph","created_at":"2026-05-18T02:35:22Z","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":"Using worldsheet Hamiltonian methods we derive a charge algebra which generalizes the Courant bracket to include fluxes of general index type. This is achieved by coupling a bi-vector to the Hamiltonian of the Polyakov model. This bracket is useful to describe so-called non-geometric backgrounds and has been discussed in the mathematics literature by Dmitry Roytenberg.","authors_text":"Nick Halmagyi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-05-29T16:09:21Z","title":"Non-geometric String Backgrounds and Worldsheet Algebras"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0805.4571","kind":"arxiv","version":2},"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:ca2c0fbe81e7c2d84c620b05dfe34d885e77811bce7c817677a95ccdd276616a","target":"record","created_at":"2026-05-18T02:35:22Z","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":"d0db918fb872c89878c9d72aebdd8a104f3d55d6ad8bb79fcca935acf32c4325","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2008-05-29T16:09:21Z","title_canon_sha256":"2fa8255ee831685961ff9c4d923fdf1e75997ce6fb915ab05355ea84a83b5dff"},"schema_version":"1.0","source":{"id":"0805.4571","kind":"arxiv","version":2}},"canonical_sha256":"f5f2f6d87c8b0431fc86fb2fa209ba97f6cafafb3280ee8518fc37a8c6bab5b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5f2f6d87c8b0431fc86fb2fa209ba97f6cafafb3280ee8518fc37a8c6bab5b7","first_computed_at":"2026-05-18T02:35:22.080631Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:35:22.080631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o6uXDoXeHA9X4jZog8Kw8Naq3eJS9WkTBtQEhhzwRwYOcVSgINDz4NpIlBRsCD6mEg1GRvgzuTjbf0IF4Z2+Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:35:22.081036Z","signed_message":"canonical_sha256_bytes"},"source_id":"0805.4571","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca2c0fbe81e7c2d84c620b05dfe34d885e77811bce7c817677a95ccdd276616a","sha256:7fc07b40a5211c2e3a0cfc0b1bc08828a6c319e6ea050bd3c8b604f1052925fd"],"state_sha256":"af88d0b07feb963096d6d149ac39e37b504238edaa67163ada3a4e5dbd2a34b7"}