{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:ATPM4IF42XCPURKME6SQCKWYPX","short_pith_number":"pith:ATPM4IF4","canonical_record":{"source":{"id":"1412.6321","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-19T13:03:18Z","cross_cats_sorted":["gr-qc","hep-th","nucl-th"],"title_canon_sha256":"8f80a9b01986ebcd02f9823c9f1d09f2429c3f607eea4a79f39ad4d30fb36a12","abstract_canon_sha256":"9a0b282760e6f650fb3869b1fbbd25f8557a756cba6d57582b0a311a90904b01"},"schema_version":"1.0"},"canonical_sha256":"04dece20bcd5c4fa454c27a5012ad87dc62ee0901078a04b7aee3cc073b071ab","source":{"kind":"arxiv","id":"1412.6321","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.6321","created_at":"2026-05-18T01:36:58Z"},{"alias_kind":"arxiv_version","alias_value":"1412.6321v3","created_at":"2026-05-18T01:36:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.6321","created_at":"2026-05-18T01:36:58Z"},{"alias_kind":"pith_short_12","alias_value":"ATPM4IF42XCP","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"ATPM4IF42XCPURKM","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"ATPM4IF4","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:ATPM4IF42XCPURKME6SQCKWYPX","target":"record","payload":{"canonical_record":{"source":{"id":"1412.6321","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-19T13:03:18Z","cross_cats_sorted":["gr-qc","hep-th","nucl-th"],"title_canon_sha256":"8f80a9b01986ebcd02f9823c9f1d09f2429c3f607eea4a79f39ad4d30fb36a12","abstract_canon_sha256":"9a0b282760e6f650fb3869b1fbbd25f8557a756cba6d57582b0a311a90904b01"},"schema_version":"1.0"},"canonical_sha256":"04dece20bcd5c4fa454c27a5012ad87dc62ee0901078a04b7aee3cc073b071ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:58.175273Z","signature_b64":"Lpm9xSt6KfNzCKmFkH4jmiGlIqfR2mvcnYV1zVv6MnSW/Nsl+0njUO9oz/6UnqdpyYO9ZGPHLFW9ve2tEspjCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04dece20bcd5c4fa454c27a5012ad87dc62ee0901078a04b7aee3cc073b071ab","last_reissued_at":"2026-05-18T01:36:58.174618Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:58.174618Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.6321","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":"2026-05-18T01:36:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r3iIB5B5cR6/2opAxw8e/6LVAAdfpp0iNcgl1mQa5uC0HP+ReAfufZAI7LjNToRLWDUV4R/RLqwtpFXoo/7kCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:42:08.229610Z"},"content_sha256":"c3c1a2bc41b059ff957a681cff54efeb18c9dea5fa498a18bf1cd19be4f094ee","schema_version":"1.0","event_id":"sha256:c3c1a2bc41b059ff957a681cff54efeb18c9dea5fa498a18bf1cd19be4f094ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:ATPM4IF42XCPURKME6SQCKWYPX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Classicalization of Quantum Variables and Quantum-Classical Hybrids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th","nucl-th"],"primary_cat":"quant-ph","authors_text":"T. Koide","submitted_at":"2014-12-19T13:03:18Z","abstract_excerpt":"The extraction of classical degrees of freedom in quantum mechanics is studied in the stochastic variational method. By using this classicalization, a hybrid model constructed from quantum and classical variables (quantum-classical hybrids) is derived. In this procedure, conservation laws such as energy are maintained, and Ehrenfest's theorem is still satisfied with modification. The criterion for the applicability of quantum-classical hybrids is also discussed."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.6321","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":"2026-05-18T01:36:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JwHisbSs1MXyj2ciMXF87XQge7/CCTUV+czfLKjqJGjb0Ld0zYwenjXB3jkVLO0UP2zsHJqasjwP25q+mXOLCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T15:42:08.230133Z"},"content_sha256":"ab9f17d6cb427fbdfc1096785d5c9c452596ccee6d51280247cae43f8b4f90ef","schema_version":"1.0","event_id":"sha256:ab9f17d6cb427fbdfc1096785d5c9c452596ccee6d51280247cae43f8b4f90ef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ATPM4IF42XCPURKME6SQCKWYPX/bundle.json","state_url":"https://pith.science/pith/ATPM4IF42XCPURKME6SQCKWYPX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ATPM4IF42XCPURKME6SQCKWYPX/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":"2026-05-29T15:42:08Z","links":{"resolver":"https://pith.science/pith/ATPM4IF42XCPURKME6SQCKWYPX","bundle":"https://pith.science/pith/ATPM4IF42XCPURKME6SQCKWYPX/bundle.json","state":"https://pith.science/pith/ATPM4IF42XCPURKME6SQCKWYPX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ATPM4IF42XCPURKME6SQCKWYPX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:ATPM4IF42XCPURKME6SQCKWYPX","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":"9a0b282760e6f650fb3869b1fbbd25f8557a756cba6d57582b0a311a90904b01","cross_cats_sorted":["gr-qc","hep-th","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-19T13:03:18Z","title_canon_sha256":"8f80a9b01986ebcd02f9823c9f1d09f2429c3f607eea4a79f39ad4d30fb36a12"},"schema_version":"1.0","source":{"id":"1412.6321","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.6321","created_at":"2026-05-18T01:36:58Z"},{"alias_kind":"arxiv_version","alias_value":"1412.6321v3","created_at":"2026-05-18T01:36:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.6321","created_at":"2026-05-18T01:36:58Z"},{"alias_kind":"pith_short_12","alias_value":"ATPM4IF42XCP","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"ATPM4IF42XCPURKM","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"ATPM4IF4","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:ab9f17d6cb427fbdfc1096785d5c9c452596ccee6d51280247cae43f8b4f90ef","target":"graph","created_at":"2026-05-18T01:36:58Z","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":"The extraction of classical degrees of freedom in quantum mechanics is studied in the stochastic variational method. By using this classicalization, a hybrid model constructed from quantum and classical variables (quantum-classical hybrids) is derived. In this procedure, conservation laws such as energy are maintained, and Ehrenfest's theorem is still satisfied with modification. The criterion for the applicability of quantum-classical hybrids is also discussed.","authors_text":"T. Koide","cross_cats":["gr-qc","hep-th","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-19T13:03:18Z","title":"Classicalization of Quantum Variables and Quantum-Classical Hybrids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.6321","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:c3c1a2bc41b059ff957a681cff54efeb18c9dea5fa498a18bf1cd19be4f094ee","target":"record","created_at":"2026-05-18T01:36:58Z","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":"9a0b282760e6f650fb3869b1fbbd25f8557a756cba6d57582b0a311a90904b01","cross_cats_sorted":["gr-qc","hep-th","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-19T13:03:18Z","title_canon_sha256":"8f80a9b01986ebcd02f9823c9f1d09f2429c3f607eea4a79f39ad4d30fb36a12"},"schema_version":"1.0","source":{"id":"1412.6321","kind":"arxiv","version":3}},"canonical_sha256":"04dece20bcd5c4fa454c27a5012ad87dc62ee0901078a04b7aee3cc073b071ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04dece20bcd5c4fa454c27a5012ad87dc62ee0901078a04b7aee3cc073b071ab","first_computed_at":"2026-05-18T01:36:58.174618Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:58.174618Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Lpm9xSt6KfNzCKmFkH4jmiGlIqfR2mvcnYV1zVv6MnSW/Nsl+0njUO9oz/6UnqdpyYO9ZGPHLFW9ve2tEspjCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:58.175273Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.6321","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3c1a2bc41b059ff957a681cff54efeb18c9dea5fa498a18bf1cd19be4f094ee","sha256:ab9f17d6cb427fbdfc1096785d5c9c452596ccee6d51280247cae43f8b4f90ef"],"state_sha256":"de50ba81085fc8cb0e0a0650ab772c315af6cfdc1f6b8331001123f4721dad6e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dq/H0Bo6y+SrV4ieNZJErCr9ZqqzsDEj26YJMnq0qA0xMjIl5ziNCZ0VvSy4QTAC/rkYHAtJur/n2894hg+AAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T15:42:08.233435Z","bundle_sha256":"73123dc3f4d9f46f607fdc78a6a793613ebf6e3274134ea07306aa85655bc6a2"}}