{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7XH66RPEMMYHHWWCLP2HMRC6OI","short_pith_number":"pith:7XH66RPE","canonical_record":{"source":{"id":"1203.0943","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-05T15:23:01Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"ea1edb9f76c9162f4f3a9112042873cd842b006d858336981b14c1d949ff7445","abstract_canon_sha256":"4894d1f8ebc81f4a5d649e61ff71c57e4126402ea56ef30b84e4a694a7696f7e"},"schema_version":"1.0"},"canonical_sha256":"fdcfef45e4633073dac25bf476445e7216a7dfd073c5cbb033c839cedc62fbfe","source":{"kind":"arxiv","id":"1203.0943","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.0943","created_at":"2026-05-18T03:49:10Z"},{"alias_kind":"arxiv_version","alias_value":"1203.0943v3","created_at":"2026-05-18T03:49:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.0943","created_at":"2026-05-18T03:49:10Z"},{"alias_kind":"pith_short_12","alias_value":"7XH66RPEMMYH","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7XH66RPEMMYHHWWC","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7XH66RPE","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7XH66RPEMMYHHWWCLP2HMRC6OI","target":"record","payload":{"canonical_record":{"source":{"id":"1203.0943","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-05T15:23:01Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"ea1edb9f76c9162f4f3a9112042873cd842b006d858336981b14c1d949ff7445","abstract_canon_sha256":"4894d1f8ebc81f4a5d649e61ff71c57e4126402ea56ef30b84e4a694a7696f7e"},"schema_version":"1.0"},"canonical_sha256":"fdcfef45e4633073dac25bf476445e7216a7dfd073c5cbb033c839cedc62fbfe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:49:10.238486Z","signature_b64":"LUwLPA0VzblrkHaNB8Pta4KKUC4atLcr2rPZbJ6WPAyFQQIyhtkScHmRvWKnUKNo0aRnCrhg0OferV5XOahEDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fdcfef45e4633073dac25bf476445e7216a7dfd073c5cbb033c839cedc62fbfe","last_reissued_at":"2026-05-18T03:49:10.238022Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:49:10.238022Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.0943","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:49:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OYgvR/YOk1fbX70Rm5Yzcfwj7nA5to0ZAATZ3aQEh2fELr9Rt0ObCX8Eohhw1bt9p/X917Gcx/ZpeO4aCI1WDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T12:12:33.524431Z"},"content_sha256":"79aeece612a6659522026549cfa5280fad64eb3207852d8f00c9c6a681d6a078","schema_version":"1.0","event_id":"sha256:79aeece612a6659522026549cfa5280fad64eb3207852d8f00c9c6a681d6a078"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7XH66RPEMMYHHWWCLP2HMRC6OI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A note on symmetry reductions of the Lindblad equation: transport in constrained open spin chains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"quant-ph","authors_text":"Berislav Buca, Tomaz Prosen","submitted_at":"2012-03-05T15:23:01Z","abstract_excerpt":"We study quantum transport properties of an open Heisenberg XXZ spin 1/2 chain driven by a pair of Lindblad jump operators satisfying a global `microcanonical' constraint, i.e. conserving the total magnetization. We will show that this system has an additional discrete symmetry which is particular to the Liouvillean description of the problem. Such symmetry reduces the dynamics even more than what would be expected in the standard Hilbert space formalism and establishes existence of multiple steady states. Interestingly, numerical simulations of the XXZ model suggest that a pair of distinct no"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.0943","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T03:49:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NDZSoIRBgUJA91QAGtE8N7zrhD59vC1gD2YjixYxmiLSVIS/kKca16rz4VAHwuv9jk0E5ZGTE/ZOqhwXXDI3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T12:12:33.524794Z"},"content_sha256":"b71e238bd111e4ad52a3319e6a5ca20936b338d64c169dfabf24ddac4786acdf","schema_version":"1.0","event_id":"sha256:b71e238bd111e4ad52a3319e6a5ca20936b338d64c169dfabf24ddac4786acdf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7XH66RPEMMYHHWWCLP2HMRC6OI/bundle.json","state_url":"https://pith.science/pith/7XH66RPEMMYHHWWCLP2HMRC6OI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7XH66RPEMMYHHWWCLP2HMRC6OI/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":"2026-06-04T12:12:33Z","links":{"resolver":"https://pith.science/pith/7XH66RPEMMYHHWWCLP2HMRC6OI","bundle":"https://pith.science/pith/7XH66RPEMMYHHWWCLP2HMRC6OI/bundle.json","state":"https://pith.science/pith/7XH66RPEMMYHHWWCLP2HMRC6OI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7XH66RPEMMYHHWWCLP2HMRC6OI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7XH66RPEMMYHHWWCLP2HMRC6OI","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":"4894d1f8ebc81f4a5d649e61ff71c57e4126402ea56ef30b84e4a694a7696f7e","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-05T15:23:01Z","title_canon_sha256":"ea1edb9f76c9162f4f3a9112042873cd842b006d858336981b14c1d949ff7445"},"schema_version":"1.0","source":{"id":"1203.0943","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.0943","created_at":"2026-05-18T03:49:10Z"},{"alias_kind":"arxiv_version","alias_value":"1203.0943v3","created_at":"2026-05-18T03:49:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.0943","created_at":"2026-05-18T03:49:10Z"},{"alias_kind":"pith_short_12","alias_value":"7XH66RPEMMYH","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7XH66RPEMMYHHWWC","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7XH66RPE","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:b71e238bd111e4ad52a3319e6a5ca20936b338d64c169dfabf24ddac4786acdf","target":"graph","created_at":"2026-05-18T03:49:10Z","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 study quantum transport properties of an open Heisenberg XXZ spin 1/2 chain driven by a pair of Lindblad jump operators satisfying a global `microcanonical' constraint, i.e. conserving the total magnetization. We will show that this system has an additional discrete symmetry which is particular to the Liouvillean description of the problem. Such symmetry reduces the dynamics even more than what would be expected in the standard Hilbert space formalism and establishes existence of multiple steady states. Interestingly, numerical simulations of the XXZ model suggest that a pair of distinct no","authors_text":"Berislav Buca, Tomaz Prosen","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-05T15:23:01Z","title":"A note on symmetry reductions of the Lindblad equation: transport in constrained open spin chains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.0943","kind":"arxiv","version":3},"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":"sha256:79aeece612a6659522026549cfa5280fad64eb3207852d8f00c9c6a681d6a078","target":"record","created_at":"2026-05-18T03:49:10Z","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":"4894d1f8ebc81f4a5d649e61ff71c57e4126402ea56ef30b84e4a694a7696f7e","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-03-05T15:23:01Z","title_canon_sha256":"ea1edb9f76c9162f4f3a9112042873cd842b006d858336981b14c1d949ff7445"},"schema_version":"1.0","source":{"id":"1203.0943","kind":"arxiv","version":3}},"canonical_sha256":"fdcfef45e4633073dac25bf476445e7216a7dfd073c5cbb033c839cedc62fbfe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdcfef45e4633073dac25bf476445e7216a7dfd073c5cbb033c839cedc62fbfe","first_computed_at":"2026-05-18T03:49:10.238022Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:49:10.238022Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LUwLPA0VzblrkHaNB8Pta4KKUC4atLcr2rPZbJ6WPAyFQQIyhtkScHmRvWKnUKNo0aRnCrhg0OferV5XOahEDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:49:10.238486Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.0943","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79aeece612a6659522026549cfa5280fad64eb3207852d8f00c9c6a681d6a078","sha256:b71e238bd111e4ad52a3319e6a5ca20936b338d64c169dfabf24ddac4786acdf"],"state_sha256":"a25bd8e9e94cd7ccc2a8cd30f1227f09ac5eb5e42017191b8916e624e612d1fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cwyf+7eIihoWxULihuOvmX/uIwgAfV7/SQQSUow9y4Rk0OZSG35zoiDsH7h3iHNdfU9DMlT70Ep/LPaOp3vnBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T12:12:33.526812Z","bundle_sha256":"d8d2b6d333397027c31d61bddb45e1b87e167765dd7048709cdfa3516d619510"}}