{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:46FUOSEZ35FVKY5R5L2QVJOBJJ","short_pith_number":"pith:46FUOSEZ","canonical_record":{"source":{"id":"quant-ph/0309093","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2003-09-11T02:05:33Z","cross_cats_sorted":[],"title_canon_sha256":"4de3f9ab9bc7ac4961d29003bce0b789fef5e8d340b1a9a0402da59a8193cfef","abstract_canon_sha256":"05e1782f81507afe482baec33a08cdb54efab933956e9c23cdc721996d2de4eb"},"schema_version":"1.0"},"canonical_sha256":"e78b474899df4b5563b1eaf50aa5c14a4f1eea60e7268ababe063fe76b37dc0e","source":{"kind":"arxiv","id":"quant-ph/0309093","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0309093","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0309093v1","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0309093","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"pith_short_12","alias_value":"46FUOSEZ35FV","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"pith_short_16","alias_value":"46FUOSEZ35FVKY5R","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"pith_short_8","alias_value":"46FUOSEZ","created_at":"2026-07-04T14:46:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:46FUOSEZ35FVKY5R5L2QVJOBJJ","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0309093","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2003-09-11T02:05:33Z","cross_cats_sorted":[],"title_canon_sha256":"4de3f9ab9bc7ac4961d29003bce0b789fef5e8d340b1a9a0402da59a8193cfef","abstract_canon_sha256":"05e1782f81507afe482baec33a08cdb54efab933956e9c23cdc721996d2de4eb"},"schema_version":"1.0"},"canonical_sha256":"e78b474899df4b5563b1eaf50aa5c14a4f1eea60e7268ababe063fe76b37dc0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:46:24.463920Z","signature_b64":"YyVHF7i3l7GlAoRmgkAzDNWHc/F6NNp2K0mQ9wVTWDvsDOpuZvhGAYiytPJ//F2etmzMEDLtoGCTlQFtJ/DNBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e78b474899df4b5563b1eaf50aa5c14a4f1eea60e7268ababe063fe76b37dc0e","last_reissued_at":"2026-07-04T14:46:24.463574Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:46:24.463574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0309093","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":"2026-07-04T14:46:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ETnuS7sIar0FFfpKd8DSIEOlck3rtRjruYSINFlM8YKra4In7pG/p3MEMse9iQnKUhYz5gRj9M5C6/X+nuw6Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T19:30:49.519207Z"},"content_sha256":"ffef57fdafb88e8ba74f2a19e7ae49cc96bcf04d3e8a87cac333af8d99db3c6c","schema_version":"1.0","event_id":"sha256:ffef57fdafb88e8ba74f2a19e7ae49cc96bcf04d3e8a87cac333af8d99db3c6c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:46FUOSEZ35FVKY5R5L2QVJOBJJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The transition to classical chaos in a coupled quantum system through continuous measurement","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Ivan Deutsch, Kurt Jacobs, Paul Alsing, Salman Habib, Shohini Ghose, Tanmoy Bhattacharya","submitted_at":"2003-09-11T02:05:33Z","abstract_excerpt":"Continuous observation of a quantum system yields a measurement record that faithfully reproduces the classically predicted trajectory provided that the measurement is sufficiently strong to localize the state in phase space but weak enough that quantum backaction noise is negligible. We investigate the conditions under which classical dynamics emerges, via continuous position measurement, for a particle moving in a harmonic well with its position coupled to internal spin. As a consequence of this coupling we find that classical dynamics emerges only when the position and spin actions are both"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0309093","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/quant-ph/0309093/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":"2026-07-04T14:46:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WIbPXU7dvHTZaXrb/bAODsI0q+WSNwL7KUqABZLwl58LXeiW4SkNdjIMCSAcKDJ7A+2WY+BU7APDKeH0UGS5AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T19:30:49.519594Z"},"content_sha256":"99f2ab42236bf7c69e0e6b03ed1e310b2f9bb5eb10e46aa4d2ef222cd4981cfd","schema_version":"1.0","event_id":"sha256:99f2ab42236bf7c69e0e6b03ed1e310b2f9bb5eb10e46aa4d2ef222cd4981cfd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/46FUOSEZ35FVKY5R5L2QVJOBJJ/bundle.json","state_url":"https://pith.science/pith/46FUOSEZ35FVKY5R5L2QVJOBJJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/46FUOSEZ35FVKY5R5L2QVJOBJJ/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":"2026-07-04T19:30:49Z","links":{"resolver":"https://pith.science/pith/46FUOSEZ35FVKY5R5L2QVJOBJJ","bundle":"https://pith.science/pith/46FUOSEZ35FVKY5R5L2QVJOBJJ/bundle.json","state":"https://pith.science/pith/46FUOSEZ35FVKY5R5L2QVJOBJJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/46FUOSEZ35FVKY5R5L2QVJOBJJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:46FUOSEZ35FVKY5R5L2QVJOBJJ","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":"05e1782f81507afe482baec33a08cdb54efab933956e9c23cdc721996d2de4eb","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2003-09-11T02:05:33Z","title_canon_sha256":"4de3f9ab9bc7ac4961d29003bce0b789fef5e8d340b1a9a0402da59a8193cfef"},"schema_version":"1.0","source":{"id":"quant-ph/0309093","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0309093","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0309093v1","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0309093","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"pith_short_12","alias_value":"46FUOSEZ35FV","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"pith_short_16","alias_value":"46FUOSEZ35FVKY5R","created_at":"2026-07-04T14:46:24Z"},{"alias_kind":"pith_short_8","alias_value":"46FUOSEZ","created_at":"2026-07-04T14:46:24Z"}],"graph_snapshots":[{"event_id":"sha256:99f2ab42236bf7c69e0e6b03ed1e310b2f9bb5eb10e46aa4d2ef222cd4981cfd","target":"graph","created_at":"2026-07-04T14:46:24Z","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/quant-ph/0309093/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Continuous observation of a quantum system yields a measurement record that faithfully reproduces the classically predicted trajectory provided that the measurement is sufficiently strong to localize the state in phase space but weak enough that quantum backaction noise is negligible. We investigate the conditions under which classical dynamics emerges, via continuous position measurement, for a particle moving in a harmonic well with its position coupled to internal spin. As a consequence of this coupling we find that classical dynamics emerges only when the position and spin actions are both","authors_text":"Ivan Deutsch, Kurt Jacobs, Paul Alsing, Salman Habib, Shohini Ghose, Tanmoy Bhattacharya","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2003-09-11T02:05:33Z","title":"The transition to classical chaos in a coupled quantum system through continuous measurement"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0309093","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:ffef57fdafb88e8ba74f2a19e7ae49cc96bcf04d3e8a87cac333af8d99db3c6c","target":"record","created_at":"2026-07-04T14:46:24Z","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":"05e1782f81507afe482baec33a08cdb54efab933956e9c23cdc721996d2de4eb","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2003-09-11T02:05:33Z","title_canon_sha256":"4de3f9ab9bc7ac4961d29003bce0b789fef5e8d340b1a9a0402da59a8193cfef"},"schema_version":"1.0","source":{"id":"quant-ph/0309093","kind":"arxiv","version":1}},"canonical_sha256":"e78b474899df4b5563b1eaf50aa5c14a4f1eea60e7268ababe063fe76b37dc0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e78b474899df4b5563b1eaf50aa5c14a4f1eea60e7268ababe063fe76b37dc0e","first_computed_at":"2026-07-04T14:46:24.463574Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:46:24.463574Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YyVHF7i3l7GlAoRmgkAzDNWHc/F6NNp2K0mQ9wVTWDvsDOpuZvhGAYiytPJ//F2etmzMEDLtoGCTlQFtJ/DNBg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:46:24.463920Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0309093","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffef57fdafb88e8ba74f2a19e7ae49cc96bcf04d3e8a87cac333af8d99db3c6c","sha256:99f2ab42236bf7c69e0e6b03ed1e310b2f9bb5eb10e46aa4d2ef222cd4981cfd"],"state_sha256":"2e8b0f860cf907bf69fa2dc56b6240edd74e0118dca3762d8e9e88fe03e15302"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HJ2djhnFclDx1/Z2cxJBfYpkSXNwY4cW2MuxZuoSgXQuRBtpuORlkQwiwCT/S7+gxRWvTpZM1w4tulLrFmuqBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T19:30:49.521550Z","bundle_sha256":"1b8a42ccd997cfd5eb7202a6f2a6a286d45fba0e6064fdfa864e9c48f5d6d181"}}