{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:O3OMKJEHD567L37MBAFZLSKZ2F","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":"1b7a60c7388700508b9c136247a5e745583db71da598ae628930c4dc662a49b0","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"quant-ph","submitted_at":"2006-10-12T13:58:24Z","title_canon_sha256":"27823f1a7fec57b827fc9723c7ec55d7cd1e5625d573e63ff8d1d48476b15c8f"},"schema_version":"1.0","source":{"id":"quant-ph/0610099","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0610099","created_at":"2026-07-04T17:03:35Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0610099v1","created_at":"2026-07-04T17:03:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0610099","created_at":"2026-07-04T17:03:35Z"},{"alias_kind":"pith_short_12","alias_value":"O3OMKJEHD567","created_at":"2026-07-04T17:03:35Z"},{"alias_kind":"pith_short_16","alias_value":"O3OMKJEHD567L37M","created_at":"2026-07-04T17:03:35Z"},{"alias_kind":"pith_short_8","alias_value":"O3OMKJEH","created_at":"2026-07-04T17:03:35Z"}],"graph_snapshots":[{"event_id":"sha256:dce5b4db8b0c5f2436547f5dd534bd7a9c1e6b378a90a6d64db14279ab0c64ec","target":"graph","created_at":"2026-07-04T17:03:35Z","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/quant-ph/0610099/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce the multi-scale entanglement renormalization ansatz (MERA), an efficient representation of certain quantum many-body states on a D-dimensional lattice. Equivalent to a quantum circuit with logarithmic depth and distinctive causal structure, the MERA allows for an exact evaluation of local expectation values. It is also the structure underlying entanglement renormalization, a coarse-graining scheme for quantum systems on a lattice that is focused on preserving entanglement.","authors_text":"G. Vidal","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2006-10-12T13:58:24Z","title":"A class of quantum many-body states that can be efficiently simulated"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0610099","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":"sha256:9d3aba453a6befc50962f846f8a6627a8721032366d1729829081b9cea4e5555","target":"record","created_at":"2026-07-04T17:03:35Z","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":"1b7a60c7388700508b9c136247a5e745583db71da598ae628930c4dc662a49b0","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"quant-ph","submitted_at":"2006-10-12T13:58:24Z","title_canon_sha256":"27823f1a7fec57b827fc9723c7ec55d7cd1e5625d573e63ff8d1d48476b15c8f"},"schema_version":"1.0","source":{"id":"quant-ph/0610099","kind":"arxiv","version":1}},"canonical_sha256":"76dcc524871f7df5efec080b95c959d15b0418302fff8d7ab10ec907c3d3a3ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76dcc524871f7df5efec080b95c959d15b0418302fff8d7ab10ec907c3d3a3ef","first_computed_at":"2026-07-04T17:03:35.126513Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:03:35.126513Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Xpt4+mVT7RYEs6ndSbXG/szPjhhu+2/9Cel75VQkanaBXSI4BVX9ciL1iLwOYySS2X4aprqhsV/E8RKPIVvsDw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:03:35.126846Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0610099","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d3aba453a6befc50962f846f8a6627a8721032366d1729829081b9cea4e5555","sha256:dce5b4db8b0c5f2436547f5dd534bd7a9c1e6b378a90a6d64db14279ab0c64ec"],"state_sha256":"fd89cffaef5365a983700ac4eff407a2ecc1ed1bd9adf2b7de21d01e4f64a354"}