{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:OXNTTU4IUHFZUXHJNOR7PVMDLF","short_pith_number":"pith:OXNTTU4I","canonical_record":{"source":{"id":"2509.02268","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-09-02T12:44:57Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"b32577a332af189b31e8232e6ddef32cd52972e0e57a85ccda3b514acba64261","abstract_canon_sha256":"52ecc35d99e835928ad6f67015f232cbd392f3e9dbb4a7e54ab472f66b12d9cd"},"schema_version":"1.0"},"canonical_sha256":"75db39d388a1cb9a5ce96ba3f7d58359500ebfeeeea4a24bec49859bccecaaa7","source":{"kind":"arxiv","id":"2509.02268","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.02268","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"arxiv_version","alias_value":"2509.02268v2","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.02268","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"pith_short_12","alias_value":"OXNTTU4IUHFZ","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"pith_short_16","alias_value":"OXNTTU4IUHFZUXHJ","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"pith_short_8","alias_value":"OXNTTU4I","created_at":"2026-07-05T12:06:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:OXNTTU4IUHFZUXHJNOR7PVMDLF","target":"record","payload":{"canonical_record":{"source":{"id":"2509.02268","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-09-02T12:44:57Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"b32577a332af189b31e8232e6ddef32cd52972e0e57a85ccda3b514acba64261","abstract_canon_sha256":"52ecc35d99e835928ad6f67015f232cbd392f3e9dbb4a7e54ab472f66b12d9cd"},"schema_version":"1.0"},"canonical_sha256":"75db39d388a1cb9a5ce96ba3f7d58359500ebfeeeea4a24bec49859bccecaaa7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:06:19.841614Z","signature_b64":"G6zxSqtK1OLgMEjsNqXOSHfavLhZ1lThysub852mDHuERYufU5EsgcUcawsi+iOAWODQweMyrLGfqf0FWCWBAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75db39d388a1cb9a5ce96ba3f7d58359500ebfeeeea4a24bec49859bccecaaa7","last_reissued_at":"2026-07-05T12:06:19.841080Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:06:19.841080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.02268","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T12:06:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YEKBA/qtEN1FHkr75EP/u6WCLv6ThV/ZK0coi3PZM1fUiz3iaA2RiRCX9pKeqP+i1g0kw6SJaXlENwu2yJwsCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T18:42:16.053933Z"},"content_sha256":"b912fa5fd44341dce95a13865bedc1106d7545efbe1e0f79379f8c28a8e73ab1","schema_version":"1.0","event_id":"sha256:b912fa5fd44341dce95a13865bedc1106d7545efbe1e0f79379f8c28a8e73ab1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:OXNTTU4IUHFZUXHJNOR7PVMDLF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimizing digital quantum simulation of open quantum lattice models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"quant-ph","authors_text":"Hongchao Li, J. Ignacio Cirac, Rahul Trivedi, Xie-hang Yu","submitted_at":"2025-09-02T12:44:57Z","abstract_excerpt":"Many-body systems arising in condensed matter physics and quantum optics inevitably couple to the environment and need to be modelled as open quantum systems. While near-optimal algorithms have been developed for simulating many-body quantum dynamics, algorithms for their open system counterparts remain less well investigated. We address the problem of simulating geometrically local many-body open quantum systems interacting with a stationary Gaussian environment. Under a smoothness assumption on the system-environment interaction, we develop near-optimal algorithms that, for a model with $N$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.02268","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2509.02268/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T12:06:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ukiLUWOYL1Hbdb41owKKKNzGFzy8LEokt23xXVYms6d+O8j7FQ7SBffaRAp432QOlMZAMnUvtzHlGes+QoaCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T18:42:16.054302Z"},"content_sha256":"7168ce5c0860e090bc17309f1ddc1b1e3ebcd5e13acfde49a16adff396a08416","schema_version":"1.0","event_id":"sha256:7168ce5c0860e090bc17309f1ddc1b1e3ebcd5e13acfde49a16adff396a08416"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OXNTTU4IUHFZUXHJNOR7PVMDLF/bundle.json","state_url":"https://pith.science/pith/OXNTTU4IUHFZUXHJNOR7PVMDLF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OXNTTU4IUHFZUXHJNOR7PVMDLF/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-06T18:42:16Z","links":{"resolver":"https://pith.science/pith/OXNTTU4IUHFZUXHJNOR7PVMDLF","bundle":"https://pith.science/pith/OXNTTU4IUHFZUXHJNOR7PVMDLF/bundle.json","state":"https://pith.science/pith/OXNTTU4IUHFZUXHJNOR7PVMDLF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OXNTTU4IUHFZUXHJNOR7PVMDLF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:OXNTTU4IUHFZUXHJNOR7PVMDLF","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":"52ecc35d99e835928ad6f67015f232cbd392f3e9dbb4a7e54ab472f66b12d9cd","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-09-02T12:44:57Z","title_canon_sha256":"b32577a332af189b31e8232e6ddef32cd52972e0e57a85ccda3b514acba64261"},"schema_version":"1.0","source":{"id":"2509.02268","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.02268","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"arxiv_version","alias_value":"2509.02268v2","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.02268","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"pith_short_12","alias_value":"OXNTTU4IUHFZ","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"pith_short_16","alias_value":"OXNTTU4IUHFZUXHJ","created_at":"2026-07-05T12:06:19Z"},{"alias_kind":"pith_short_8","alias_value":"OXNTTU4I","created_at":"2026-07-05T12:06:19Z"}],"graph_snapshots":[{"event_id":"sha256:7168ce5c0860e090bc17309f1ddc1b1e3ebcd5e13acfde49a16adff396a08416","target":"graph","created_at":"2026-07-05T12:06:19Z","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/2509.02268/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Many-body systems arising in condensed matter physics and quantum optics inevitably couple to the environment and need to be modelled as open quantum systems. While near-optimal algorithms have been developed for simulating many-body quantum dynamics, algorithms for their open system counterparts remain less well investigated. We address the problem of simulating geometrically local many-body open quantum systems interacting with a stationary Gaussian environment. Under a smoothness assumption on the system-environment interaction, we develop near-optimal algorithms that, for a model with $N$ ","authors_text":"Hongchao Li, J. Ignacio Cirac, Rahul Trivedi, Xie-hang Yu","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-09-02T12:44:57Z","title":"Optimizing digital quantum simulation of open quantum lattice models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.02268","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:b912fa5fd44341dce95a13865bedc1106d7545efbe1e0f79379f8c28a8e73ab1","target":"record","created_at":"2026-07-05T12:06:19Z","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":"52ecc35d99e835928ad6f67015f232cbd392f3e9dbb4a7e54ab472f66b12d9cd","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-09-02T12:44:57Z","title_canon_sha256":"b32577a332af189b31e8232e6ddef32cd52972e0e57a85ccda3b514acba64261"},"schema_version":"1.0","source":{"id":"2509.02268","kind":"arxiv","version":2}},"canonical_sha256":"75db39d388a1cb9a5ce96ba3f7d58359500ebfeeeea4a24bec49859bccecaaa7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75db39d388a1cb9a5ce96ba3f7d58359500ebfeeeea4a24bec49859bccecaaa7","first_computed_at":"2026-07-05T12:06:19.841080Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:06:19.841080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"G6zxSqtK1OLgMEjsNqXOSHfavLhZ1lThysub852mDHuERYufU5EsgcUcawsi+iOAWODQweMyrLGfqf0FWCWBAA==","signature_status":"signed_v1","signed_at":"2026-07-05T12:06:19.841614Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.02268","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b912fa5fd44341dce95a13865bedc1106d7545efbe1e0f79379f8c28a8e73ab1","sha256:7168ce5c0860e090bc17309f1ddc1b1e3ebcd5e13acfde49a16adff396a08416"],"state_sha256":"73a57442e92dff0a9019d5a9a261bb7aee412da9c64be533517644f7a739563d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T8GtYX129sd79TycXr5FWA4E4CovzdgWRB5oXHcJuXdajByxElKo87kAzpDF872YmNf2ckZ7mv+ZM5bZKHlBDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T18:42:16.056212Z","bundle_sha256":"4d7b4038db4740c5d14ffdc189fecec41b3138fb8b763de787b5bcdf1c2a2063"}}