{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QD2YYKOECXRCRBDKUO4IYGM7DC","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":"2c243c942ecdcdbb04e4a3c63191588d4875276123863ddc304acedcdafb387f","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-13T08:57:23Z","title_canon_sha256":"bceb85ee8ed7386f7bd1b33aa48913e4423c3c18712323bac1424418d44082f1"},"schema_version":"1.0","source":{"id":"2607.11273","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.11273","created_at":"2026-07-14T01:22:26Z"},{"alias_kind":"arxiv_version","alias_value":"2607.11273v1","created_at":"2026-07-14T01:22:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.11273","created_at":"2026-07-14T01:22:26Z"},{"alias_kind":"pith_short_12","alias_value":"QD2YYKOECXRC","created_at":"2026-07-14T01:22:26Z"},{"alias_kind":"pith_short_16","alias_value":"QD2YYKOECXRCRBDK","created_at":"2026-07-14T01:22:26Z"},{"alias_kind":"pith_short_8","alias_value":"QD2YYKOE","created_at":"2026-07-14T01:22:26Z"}],"graph_snapshots":[{"event_id":"sha256:c919f93a5c8a8a23a412887a03ca78c0e427300b21b5cfb958601df5fcf160ac","target":"graph","created_at":"2026-07-14T01:22:26Z","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/2607.11273/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum state tomography is sample-starved, and the states one prepares live on a narrow, learnable manifold. A $k{=}0$ prior-only control shows that on concentrated families a prior estimate is already near-optimal, so ``high fidelity at few measurements'' can be family memorization rather than tomography; genuine measurement-efficiency needs a model that conditions on the measurements and demonstrably uses them. On a shared matrix-product-state (MPS) core parameterization we study two routes. Approach~A learns a generative prior over MPS cores with measurement-guided posterior inference (gol","authors_text":"Delu Zeng, Jian Xu, John Paisley, Qibin Zhao","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-13T08:57:23Z","title":"Fixed-Protocol Amortized MPS Tomography with Conformalized Predictive Uncertainty"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.11273","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":"sha256:3a3c9f3d6604cc4a76b30becd3dffb20142663b2f220cfe8e933ec3b068f1264","target":"record","created_at":"2026-07-14T01:22:26Z","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":"2c243c942ecdcdbb04e4a3c63191588d4875276123863ddc304acedcdafb387f","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-13T08:57:23Z","title_canon_sha256":"bceb85ee8ed7386f7bd1b33aa48913e4423c3c18712323bac1424418d44082f1"},"schema_version":"1.0","source":{"id":"2607.11273","kind":"arxiv","version":1}},"canonical_sha256":"80f58c29c415e228846aa3b88c199f188328919c1f7cf4416f9f45f164ea16ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80f58c29c415e228846aa3b88c199f188328919c1f7cf4416f9f45f164ea16ba","first_computed_at":"2026-07-14T01:22:26.054735Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-14T01:22:26.054735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GjjuYxngYm47rJM5kweXCc++bfdCLHa+KB4RyI8f8OmYxeSQ8DvJ+hUBapGZKHLuprSa7HRZRPWdGctiAgtgCw==","signature_status":"signed_v1","signed_at":"2026-07-14T01:22:26.055607Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.11273","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a3c9f3d6604cc4a76b30becd3dffb20142663b2f220cfe8e933ec3b068f1264","sha256:c919f93a5c8a8a23a412887a03ca78c0e427300b21b5cfb958601df5fcf160ac"],"state_sha256":"e1d8968ed3044bf6f4ebf69b6b014c71379296d4687580927f8d25ab21fd266f"}