{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:QZ6DDOMJUD5OGE2SFCXRMT722I","short_pith_number":"pith:QZ6DDOMJ","canonical_record":{"source":{"id":"1409.7167","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-09-25T06:50:48Z","cross_cats_sorted":[],"title_canon_sha256":"fbe21ea0b2e7ce36fe80262461b581df14ed5b219d0f06011ab5b2e4621fd2e8","abstract_canon_sha256":"896f9cbf7ad8b5c2951bbb986af41a92bd7a7ffeedac2678a7d7dc987b3a510b"},"schema_version":"1.0"},"canonical_sha256":"867c31b989a0fae3135228af164ffad21d0905c5d1149e7572aaea7db22c821c","source":{"kind":"arxiv","id":"1409.7167","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.7167","created_at":"2026-05-18T02:19:28Z"},{"alias_kind":"arxiv_version","alias_value":"1409.7167v3","created_at":"2026-05-18T02:19:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.7167","created_at":"2026-05-18T02:19:28Z"},{"alias_kind":"pith_short_12","alias_value":"QZ6DDOMJUD5O","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QZ6DDOMJUD5OGE2S","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QZ6DDOMJ","created_at":"2026-05-18T12:28:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:QZ6DDOMJUD5OGE2SFCXRMT722I","target":"record","payload":{"canonical_record":{"source":{"id":"1409.7167","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-09-25T06:50:48Z","cross_cats_sorted":[],"title_canon_sha256":"fbe21ea0b2e7ce36fe80262461b581df14ed5b219d0f06011ab5b2e4621fd2e8","abstract_canon_sha256":"896f9cbf7ad8b5c2951bbb986af41a92bd7a7ffeedac2678a7d7dc987b3a510b"},"schema_version":"1.0"},"canonical_sha256":"867c31b989a0fae3135228af164ffad21d0905c5d1149e7572aaea7db22c821c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:28.230292Z","signature_b64":"s89En5FywDvCemQvKnAz/JRZCCj871N2rr7hCK9AdDgEhkzV2cBNWEJruG/f9Tg4c8xzV32cxAJH5CKP633mAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"867c31b989a0fae3135228af164ffad21d0905c5d1149e7572aaea7db22c821c","last_reissued_at":"2026-05-18T02:19:28.229648Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:28.229648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.7167","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":"2026-05-18T02:19:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z+LBa/VA7RLxxSgTvZ0AQJeVZGjVclPQEMYOxTzV/T9UwSh8mZT1JtHdIQoRNkbGQy5GXaeFFQOglPxPcLhVBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:38:17.702292Z"},"content_sha256":"3a9aec11a4d08bcd9829f80775b4eb8068c669bd33ba4884912146c4434ae64e","schema_version":"1.0","event_id":"sha256:3a9aec11a4d08bcd9829f80775b4eb8068c669bd33ba4884912146c4434ae64e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:QZ6DDOMJUD5OGE2SFCXRMT722I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"\"Almost\" Quotient Space, Non-dynamical Decoherence and Quantum Measurement","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Yi-Xin Chen, Yu-Lei Feng","submitted_at":"2014-09-25T06:50:48Z","abstract_excerpt":"An alternative approach to decoherence, named non-dynamical decoherence is developed and used to resolve the quantum measurement problem. According to decoherence, the observed system is open to a macroscopic apparatus(together with a possible added environment) in a quantum measurement process. We show that this open system can be well described by an \"almost\" quotient Hilbert space formed phenomenally according to some stability conditions. A group of random phase unitary operators is introduced further to obtain an exact quotient space for the observed system. In this quotient space, a dens"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.7167","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":"2026-05-18T02:19:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dPhgzIsQC/oUN2k1tCcaVOX7glbYXuk6DE9dAKh9lv3+/TnsvPJn/v2CN2QqvJRBD2shCjGOfR7miSdLShyHDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T17:38:17.703055Z"},"content_sha256":"d167ff8aa56d7b21147de49a495d49cc669b568a01c56c88fb8b747ea78134f3","schema_version":"1.0","event_id":"sha256:d167ff8aa56d7b21147de49a495d49cc669b568a01c56c88fb8b747ea78134f3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QZ6DDOMJUD5OGE2SFCXRMT722I/bundle.json","state_url":"https://pith.science/pith/QZ6DDOMJUD5OGE2SFCXRMT722I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QZ6DDOMJUD5OGE2SFCXRMT722I/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":"2026-05-25T17:38:17Z","links":{"resolver":"https://pith.science/pith/QZ6DDOMJUD5OGE2SFCXRMT722I","bundle":"https://pith.science/pith/QZ6DDOMJUD5OGE2SFCXRMT722I/bundle.json","state":"https://pith.science/pith/QZ6DDOMJUD5OGE2SFCXRMT722I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QZ6DDOMJUD5OGE2SFCXRMT722I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:QZ6DDOMJUD5OGE2SFCXRMT722I","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":"896f9cbf7ad8b5c2951bbb986af41a92bd7a7ffeedac2678a7d7dc987b3a510b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-09-25T06:50:48Z","title_canon_sha256":"fbe21ea0b2e7ce36fe80262461b581df14ed5b219d0f06011ab5b2e4621fd2e8"},"schema_version":"1.0","source":{"id":"1409.7167","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.7167","created_at":"2026-05-18T02:19:28Z"},{"alias_kind":"arxiv_version","alias_value":"1409.7167v3","created_at":"2026-05-18T02:19:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.7167","created_at":"2026-05-18T02:19:28Z"},{"alias_kind":"pith_short_12","alias_value":"QZ6DDOMJUD5O","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"QZ6DDOMJUD5OGE2S","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"QZ6DDOMJ","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:d167ff8aa56d7b21147de49a495d49cc669b568a01c56c88fb8b747ea78134f3","target":"graph","created_at":"2026-05-18T02:19:28Z","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":"An alternative approach to decoherence, named non-dynamical decoherence is developed and used to resolve the quantum measurement problem. According to decoherence, the observed system is open to a macroscopic apparatus(together with a possible added environment) in a quantum measurement process. We show that this open system can be well described by an \"almost\" quotient Hilbert space formed phenomenally according to some stability conditions. A group of random phase unitary operators is introduced further to obtain an exact quotient space for the observed system. In this quotient space, a dens","authors_text":"Yi-Xin Chen, Yu-Lei Feng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-09-25T06:50:48Z","title":"\"Almost\" Quotient Space, Non-dynamical Decoherence and Quantum Measurement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.7167","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":"sha256:3a9aec11a4d08bcd9829f80775b4eb8068c669bd33ba4884912146c4434ae64e","target":"record","created_at":"2026-05-18T02:19:28Z","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":"896f9cbf7ad8b5c2951bbb986af41a92bd7a7ffeedac2678a7d7dc987b3a510b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-09-25T06:50:48Z","title_canon_sha256":"fbe21ea0b2e7ce36fe80262461b581df14ed5b219d0f06011ab5b2e4621fd2e8"},"schema_version":"1.0","source":{"id":"1409.7167","kind":"arxiv","version":3}},"canonical_sha256":"867c31b989a0fae3135228af164ffad21d0905c5d1149e7572aaea7db22c821c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"867c31b989a0fae3135228af164ffad21d0905c5d1149e7572aaea7db22c821c","first_computed_at":"2026-05-18T02:19:28.229648Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:19:28.229648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s89En5FywDvCemQvKnAz/JRZCCj871N2rr7hCK9AdDgEhkzV2cBNWEJruG/f9Tg4c8xzV32cxAJH5CKP633mAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:19:28.230292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.7167","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a9aec11a4d08bcd9829f80775b4eb8068c669bd33ba4884912146c4434ae64e","sha256:d167ff8aa56d7b21147de49a495d49cc669b568a01c56c88fb8b747ea78134f3"],"state_sha256":"09f33f398d9b32779ce79c01c20d7cd1e981e2f5d29581e699f58952b4b6946b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wO41o37dUNSlxBAlAtqqAnkba+8k4eviBqPL2Su51DNX3CYkpRpFbmv7ZHXAuZoqYS2UULbDPzc3gNjGARXFDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T17:38:17.706681Z","bundle_sha256":"017a6b531e0a56af4a190d835070f2b02743be857be8810db64f4e06cd8c68de"}}