{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:3QSYBUFFRQ7VEABR5V4Z4BSS43","short_pith_number":"pith:3QSYBUFF","canonical_record":{"source":{"id":"2002.06208","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-02-14T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"37180042826d48612f9dd772c2cdf69e874f594672be30511535ce640de4ab0f","abstract_canon_sha256":"6f610468f8588ac7960d2271de0f38dfa20e7bd020c73ac86b6def192e83f54e"},"schema_version":"1.0"},"canonical_sha256":"dc2580d0a58c3f520031ed799e0652e6f9668e905f737676ff286a044673fe88","source":{"kind":"arxiv","id":"2002.06208","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.06208","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"arxiv_version","alias_value":"2002.06208v2","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.06208","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"pith_short_12","alias_value":"3QSYBUFFRQ7V","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"pith_short_16","alias_value":"3QSYBUFFRQ7VEABR","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"pith_short_8","alias_value":"3QSYBUFF","created_at":"2026-07-05T01:56:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:3QSYBUFFRQ7VEABR5V4Z4BSS43","target":"record","payload":{"canonical_record":{"source":{"id":"2002.06208","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-02-14T19:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"37180042826d48612f9dd772c2cdf69e874f594672be30511535ce640de4ab0f","abstract_canon_sha256":"6f610468f8588ac7960d2271de0f38dfa20e7bd020c73ac86b6def192e83f54e"},"schema_version":"1.0"},"canonical_sha256":"dc2580d0a58c3f520031ed799e0652e6f9668e905f737676ff286a044673fe88","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:56:29.044576Z","signature_b64":"69U1rR6VM5VXFhNqKPhajSWrtO80oQaWPwQkyTM382CBaboTBdHETjeowWwA+pCMD+lFm/EG4bEB/F4J2Yz2Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc2580d0a58c3f520031ed799e0652e6f9668e905f737676ff286a044673fe88","last_reissued_at":"2026-07-05T01:56:29.044149Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:56:29.044149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.06208","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:56:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O8dXKesIVNPNomH9dUl9Dz3iYVwD0BfKoy/R3YXY2zC2mc69rZMWCQcUGTSZFWTZEJzlK6hjSdP/bfTnHI0eCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:56:42.408163Z"},"content_sha256":"dfb9ffb427c2ec1f64f38c70df4e778119b9a67dd6c297b85b4f80ab2b14280a","schema_version":"1.0","event_id":"sha256:dfb9ffb427c2ec1f64f38c70df4e778119b9a67dd6c297b85b4f80ab2b14280a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:3QSYBUFFRQ7VEABR5V4Z4BSS43","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Temporal Superposition: the case of QFT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alessio Belenchia, Costantino Budroni, Esteban Castro-Ruiz, Laura J. Henderson, Magdalena Zych, Robert B. Mann, \\v{C}aslav Brukner","submitted_at":"2020-02-14T19:00:00Z","abstract_excerpt":"Quantum field theory is completely characterized by the field correlations between spacetime points. In turn, some of these can be accessed by locally coupling to the field simple quantum systems, a.k.a. particle detectors. In this work, we consider what happens when a quantum-controlled superposition of detectors at different space-time points is used to probe the correlations of the field. We show that, due to quantum interference effects, two detectors can gain information on field correlations which would not be otherwise accessible. This has relevant consequences for information theoretic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.06208","kind":"arxiv","version":2},"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/2002.06208/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":"2026-07-05T01:56:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c8HCeBsoBFKHHXnyBnKD5uEzVpRnqohbdvr6CTkKJVs4VUCkqNiGXw9X2uRfAYdD8ds3tTdSsQ0CbSKaSyRwAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:56:42.408686Z"},"content_sha256":"2f4f82a588c0499b2a5453e9fecdf12381622c7b2e0cf1353f2bc9b5120f517b","schema_version":"1.0","event_id":"sha256:2f4f82a588c0499b2a5453e9fecdf12381622c7b2e0cf1353f2bc9b5120f517b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3QSYBUFFRQ7VEABR5V4Z4BSS43/bundle.json","state_url":"https://pith.science/pith/3QSYBUFFRQ7VEABR5V4Z4BSS43/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3QSYBUFFRQ7VEABR5V4Z4BSS43/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":"2026-08-08T22:56:42Z","links":{"resolver":"https://pith.science/pith/3QSYBUFFRQ7VEABR5V4Z4BSS43","bundle":"https://pith.science/pith/3QSYBUFFRQ7VEABR5V4Z4BSS43/bundle.json","state":"https://pith.science/pith/3QSYBUFFRQ7VEABR5V4Z4BSS43/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3QSYBUFFRQ7VEABR5V4Z4BSS43/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:3QSYBUFFRQ7VEABR5V4Z4BSS43","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":"6f610468f8588ac7960d2271de0f38dfa20e7bd020c73ac86b6def192e83f54e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-02-14T19:00:00Z","title_canon_sha256":"37180042826d48612f9dd772c2cdf69e874f594672be30511535ce640de4ab0f"},"schema_version":"1.0","source":{"id":"2002.06208","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.06208","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"arxiv_version","alias_value":"2002.06208v2","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.06208","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"pith_short_12","alias_value":"3QSYBUFFRQ7V","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"pith_short_16","alias_value":"3QSYBUFFRQ7VEABR","created_at":"2026-07-05T01:56:29Z"},{"alias_kind":"pith_short_8","alias_value":"3QSYBUFF","created_at":"2026-07-05T01:56:29Z"}],"graph_snapshots":[{"event_id":"sha256:2f4f82a588c0499b2a5453e9fecdf12381622c7b2e0cf1353f2bc9b5120f517b","target":"graph","created_at":"2026-07-05T01:56:29Z","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/2002.06208/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum field theory is completely characterized by the field correlations between spacetime points. In turn, some of these can be accessed by locally coupling to the field simple quantum systems, a.k.a. particle detectors. In this work, we consider what happens when a quantum-controlled superposition of detectors at different space-time points is used to probe the correlations of the field. We show that, due to quantum interference effects, two detectors can gain information on field correlations which would not be otherwise accessible. This has relevant consequences for information theoretic","authors_text":"Alessio Belenchia, Costantino Budroni, Esteban Castro-Ruiz, Laura J. Henderson, Magdalena Zych, Robert B. Mann, \\v{C}aslav Brukner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-02-14T19:00:00Z","title":"Quantum Temporal Superposition: the case of QFT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.06208","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:dfb9ffb427c2ec1f64f38c70df4e778119b9a67dd6c297b85b4f80ab2b14280a","target":"record","created_at":"2026-07-05T01:56:29Z","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":"6f610468f8588ac7960d2271de0f38dfa20e7bd020c73ac86b6def192e83f54e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-02-14T19:00:00Z","title_canon_sha256":"37180042826d48612f9dd772c2cdf69e874f594672be30511535ce640de4ab0f"},"schema_version":"1.0","source":{"id":"2002.06208","kind":"arxiv","version":2}},"canonical_sha256":"dc2580d0a58c3f520031ed799e0652e6f9668e905f737676ff286a044673fe88","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc2580d0a58c3f520031ed799e0652e6f9668e905f737676ff286a044673fe88","first_computed_at":"2026-07-05T01:56:29.044149Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:56:29.044149Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"69U1rR6VM5VXFhNqKPhajSWrtO80oQaWPwQkyTM382CBaboTBdHETjeowWwA+pCMD+lFm/EG4bEB/F4J2Yz2Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:56:29.044576Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.06208","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dfb9ffb427c2ec1f64f38c70df4e778119b9a67dd6c297b85b4f80ab2b14280a","sha256:2f4f82a588c0499b2a5453e9fecdf12381622c7b2e0cf1353f2bc9b5120f517b"],"state_sha256":"afbeb4d3b1a42d09d3a8611193f22a8c36177ec305a88e706c6a50e8104ebc3c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5oOeYcwmw6y4BNJxxp2A1Z1TulArWCK5D4tuRDxsWkWFr6liZNrNrujOASaweWn8e9KOFEFuQ69cyw6j5hxVAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T22:56:42.412098Z","bundle_sha256":"f8d099f41806362331f43f1c4cfdfccbbedb16acbd170bf1375909d4ac0ea8f6"}}