{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3FQTD4LSCG7ORGNIVRWGPG7YK7","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":"f18f4380d58e907da58b5dad073a710287f1fe75e95e0bf8cc7991b9cfaea4f2","cross_cats_sorted":["cond-mat.str-el","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-08T19:02:59Z","title_canon_sha256":"59e028e3df60f8fea496b57af17eae04a3c6c198ffa0d7156b5f0559ea070147"},"schema_version":"1.0","source":{"id":"1711.03119","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.03119","created_at":"2026-05-18T00:03:09Z"},{"alias_kind":"arxiv_version","alias_value":"1711.03119v2","created_at":"2026-05-18T00:03:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.03119","created_at":"2026-05-18T00:03:09Z"},{"alias_kind":"pith_short_12","alias_value":"3FQTD4LSCG7O","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3FQTD4LSCG7ORGNI","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3FQTD4LS","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:a1a92aa9d77ccbdcce175d2862056501978849d4e05763d364b473c322089040","target":"graph","created_at":"2026-05-18T00:03:09Z","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 introduce superdensity operators as a tool for analyzing quantum information in spacetime. Superdensity operators encode spacetime correlation functions in an operator framework, and support a natural generalization of Hilbert space techniques and Dirac's transformation theory as traditionally applied to standard density operators. Superdensity operators can be measured experimentally, but accessing their full content requires novel procedures. We demonstrate these statements on several examples. The superdensity formalism suggests useful definitions of spacetime entropies and spacetime qua","authors_text":"Chao-Ming Jian, Frank Wilczek, Jordan Cotler, Xiao-Liang Qi","cross_cats":["cond-mat.str-el","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-08T19:02:59Z","title":"Superdensity Operators for Spacetime Quantum Mechanics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.03119","kind":"arxiv","version":2},"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:df3d14f17c0e3f48505f96eb60467053ebd49d244b002b8508d63d015f9fbb49","target":"record","created_at":"2026-05-18T00:03:09Z","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":"f18f4380d58e907da58b5dad073a710287f1fe75e95e0bf8cc7991b9cfaea4f2","cross_cats_sorted":["cond-mat.str-el","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-08T19:02:59Z","title_canon_sha256":"59e028e3df60f8fea496b57af17eae04a3c6c198ffa0d7156b5f0559ea070147"},"schema_version":"1.0","source":{"id":"1711.03119","kind":"arxiv","version":2}},"canonical_sha256":"d96131f17211bee899a8ac6c679bf857e7dfe8aca09979232bc0c284349d00be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d96131f17211bee899a8ac6c679bf857e7dfe8aca09979232bc0c284349d00be","first_computed_at":"2026-05-18T00:03:09.302116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:09.302116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5k2FvweKtpdyPbv7zaw90osoiaUDboq/Nh2s+HZ4vY6YjkFKE9ZWxJNT+oCXypt/M4SElVKQeQObMVV/eMIkAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:09.302750Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.03119","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df3d14f17c0e3f48505f96eb60467053ebd49d244b002b8508d63d015f9fbb49","sha256:a1a92aa9d77ccbdcce175d2862056501978849d4e05763d364b473c322089040"],"state_sha256":"b81372e4191b84ee6936fb9dd0c01f1584aace6b28898099f3c294080f271f61"}