{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:BGA4PT5Q6SZGBSNEMKLG7SK4NB","short_pith_number":"pith:BGA4PT5Q","canonical_record":{"source":{"id":"1306.5205","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-06-21T18:11:38Z","cross_cats_sorted":[],"title_canon_sha256":"1bee0ea36e384f0dec83a2a4174f1b7c617b0bd9d2d6a9ba0896a121b90f9929","abstract_canon_sha256":"65afa1137fa943d8ad14c0e56a0c11afb03b4ca15ac212a3c69c04544d14bdbb"},"schema_version":"1.0"},"canonical_sha256":"0981c7cfb0f4b260c9a462966fc95c685f3bada9784aef77847dda3efaa900d9","source":{"kind":"arxiv","id":"1306.5205","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5205","created_at":"2026-05-18T01:01:49Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5205v1","created_at":"2026-05-18T01:01:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5205","created_at":"2026-05-18T01:01:49Z"},{"alias_kind":"pith_short_12","alias_value":"BGA4PT5Q6SZG","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"BGA4PT5Q6SZGBSNE","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"BGA4PT5Q","created_at":"2026-05-18T12:27:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:BGA4PT5Q6SZGBSNEMKLG7SK4NB","target":"record","payload":{"canonical_record":{"source":{"id":"1306.5205","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-06-21T18:11:38Z","cross_cats_sorted":[],"title_canon_sha256":"1bee0ea36e384f0dec83a2a4174f1b7c617b0bd9d2d6a9ba0896a121b90f9929","abstract_canon_sha256":"65afa1137fa943d8ad14c0e56a0c11afb03b4ca15ac212a3c69c04544d14bdbb"},"schema_version":"1.0"},"canonical_sha256":"0981c7cfb0f4b260c9a462966fc95c685f3bada9784aef77847dda3efaa900d9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:49.720210Z","signature_b64":"EWhb3TqsC3RFYlhpq+24U/PludwLQSJD/UB+Nx0iqTsR+TB5SikO1zZhURJA2Yt9J0+PlPcDT79vYKI5RJU0BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0981c7cfb0f4b260c9a462966fc95c685f3bada9784aef77847dda3efaa900d9","last_reissued_at":"2026-05-18T01:01:49.719409Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:49.719409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.5205","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:01:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UBclwceZTkjpxhhUzXpqK2MuCmBMdDBzOulwOC0gyW1AHErfzFVbCLHdAnfMfPqRw4hOQOJir3SuwJOjdTGwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:44:13.667957Z"},"content_sha256":"6f8b792b9f70197377c21cda8bd2c9c5c4c7f77edd137f726b35b5e0af7d9e15","schema_version":"1.0","event_id":"sha256:6f8b792b9f70197377c21cda8bd2c9c5c4c7f77edd137f726b35b5e0af7d9e15"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:BGA4PT5Q6SZGBSNEMKLG7SK4NB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On Filtering Schemes in the Quantum-Classical Liouville Approach to Non-adiabatic Dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alessandro Sergi, Daniel Uken, Francesco Petruccione","submitted_at":"2013-06-21T18:11:38Z","abstract_excerpt":"We study a number of filtering schemes for the reduction of the statistical error in non-adiabatic calculations by means of the quantum-classical Liouville equation. In particular, we focus on a scheme based on setting a threshold value on the sampling weights, so that when the threshold is overcome the value of the weight is reset, and on another approach which prunes the ensemble of the allowed non-adiabatic transitions according to a generalised sampling probability. Both methods have advantages and drawbacks, however their combination drastically improves the performance of an algorithm kn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5205","kind":"arxiv","version":1},"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":"2026-05-18T01:01:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OiNwtmhOBQ2iMnG/K5y4FkvrML/V1T3h5iLCo2bfh9QBLMkFDpYKzlqu+XATs2Ifahul6RnVLDh4BMU2sX86CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:44:13.668631Z"},"content_sha256":"967b0c16f89f1464ba93efdf4ea23c5022862cd9b7f7ec27fddea76da27b2bf3","schema_version":"1.0","event_id":"sha256:967b0c16f89f1464ba93efdf4ea23c5022862cd9b7f7ec27fddea76da27b2bf3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BGA4PT5Q6SZGBSNEMKLG7SK4NB/bundle.json","state_url":"https://pith.science/pith/BGA4PT5Q6SZGBSNEMKLG7SK4NB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BGA4PT5Q6SZGBSNEMKLG7SK4NB/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":"2026-05-29T20:44:13Z","links":{"resolver":"https://pith.science/pith/BGA4PT5Q6SZGBSNEMKLG7SK4NB","bundle":"https://pith.science/pith/BGA4PT5Q6SZGBSNEMKLG7SK4NB/bundle.json","state":"https://pith.science/pith/BGA4PT5Q6SZGBSNEMKLG7SK4NB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BGA4PT5Q6SZGBSNEMKLG7SK4NB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:BGA4PT5Q6SZGBSNEMKLG7SK4NB","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":"65afa1137fa943d8ad14c0e56a0c11afb03b4ca15ac212a3c69c04544d14bdbb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-06-21T18:11:38Z","title_canon_sha256":"1bee0ea36e384f0dec83a2a4174f1b7c617b0bd9d2d6a9ba0896a121b90f9929"},"schema_version":"1.0","source":{"id":"1306.5205","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5205","created_at":"2026-05-18T01:01:49Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5205v1","created_at":"2026-05-18T01:01:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5205","created_at":"2026-05-18T01:01:49Z"},{"alias_kind":"pith_short_12","alias_value":"BGA4PT5Q6SZG","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_16","alias_value":"BGA4PT5Q6SZGBSNE","created_at":"2026-05-18T12:27:38Z"},{"alias_kind":"pith_short_8","alias_value":"BGA4PT5Q","created_at":"2026-05-18T12:27:38Z"}],"graph_snapshots":[{"event_id":"sha256:967b0c16f89f1464ba93efdf4ea23c5022862cd9b7f7ec27fddea76da27b2bf3","target":"graph","created_at":"2026-05-18T01:01:49Z","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 a number of filtering schemes for the reduction of the statistical error in non-adiabatic calculations by means of the quantum-classical Liouville equation. In particular, we focus on a scheme based on setting a threshold value on the sampling weights, so that when the threshold is overcome the value of the weight is reset, and on another approach which prunes the ensemble of the allowed non-adiabatic transitions according to a generalised sampling probability. Both methods have advantages and drawbacks, however their combination drastically improves the performance of an algorithm kn","authors_text":"Alessandro Sergi, Daniel Uken, Francesco Petruccione","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-06-21T18:11:38Z","title":"On Filtering Schemes in the Quantum-Classical Liouville Approach to Non-adiabatic Dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5205","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":"sha256:6f8b792b9f70197377c21cda8bd2c9c5c4c7f77edd137f726b35b5e0af7d9e15","target":"record","created_at":"2026-05-18T01:01:49Z","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":"65afa1137fa943d8ad14c0e56a0c11afb03b4ca15ac212a3c69c04544d14bdbb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-06-21T18:11:38Z","title_canon_sha256":"1bee0ea36e384f0dec83a2a4174f1b7c617b0bd9d2d6a9ba0896a121b90f9929"},"schema_version":"1.0","source":{"id":"1306.5205","kind":"arxiv","version":1}},"canonical_sha256":"0981c7cfb0f4b260c9a462966fc95c685f3bada9784aef77847dda3efaa900d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0981c7cfb0f4b260c9a462966fc95c685f3bada9784aef77847dda3efaa900d9","first_computed_at":"2026-05-18T01:01:49.719409Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:49.719409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EWhb3TqsC3RFYlhpq+24U/PludwLQSJD/UB+Nx0iqTsR+TB5SikO1zZhURJA2Yt9J0+PlPcDT79vYKI5RJU0BA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:49.720210Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.5205","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f8b792b9f70197377c21cda8bd2c9c5c4c7f77edd137f726b35b5e0af7d9e15","sha256:967b0c16f89f1464ba93efdf4ea23c5022862cd9b7f7ec27fddea76da27b2bf3"],"state_sha256":"ca8592d2c89a2fb30698ed8d0dbaf6118a35ea937c2c96cd29d2312934788f5d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0qSvEU6SK3485t0VBrNSFgMmGzs2N4+UqJQ50q/oUH42eqakW0dAowCwU2pTcWOIKrlLR0wd4VQFqbKcM7M5Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T20:44:13.671646Z","bundle_sha256":"57e1e450fc894ce00f6e3f88c6b7687c26c7dc5b05ccc3ae420e0d812ceeeda4"}}