{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:5KPQKPF4UR5JAF2YFJOP7U5QBT","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":"5acb207ee06d19a922f7fb3458038592274941c1f2ce25a2c07df2db7df149d1","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-08-05T18:00:47Z","title_canon_sha256":"a0b4ddfbc7246ff1ae5254eb1ce0036ab326874752af0e04371ae6443211d74a"},"schema_version":"1.0","source":{"id":"2108.02794","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.02794","created_at":"2026-07-05T03:22:23Z"},{"alias_kind":"arxiv_version","alias_value":"2108.02794v2","created_at":"2026-07-05T03:22:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.02794","created_at":"2026-07-05T03:22:23Z"},{"alias_kind":"pith_short_12","alias_value":"5KPQKPF4UR5J","created_at":"2026-07-05T03:22:23Z"},{"alias_kind":"pith_short_16","alias_value":"5KPQKPF4UR5JAF2Y","created_at":"2026-07-05T03:22:23Z"},{"alias_kind":"pith_short_8","alias_value":"5KPQKPF4","created_at":"2026-07-05T03:22:23Z"}],"graph_snapshots":[{"event_id":"sha256:a2e4b809f4b067210efa4ba368d911459ac8256e5e67d57d744ca08d5e920161","target":"graph","created_at":"2026-07-05T03:22:23Z","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/2108.02794/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a comparison of the AQFT-based Fewster-Verch framework with the Unruh-DeWitt particle detector models commonly employed in relativistic quantum information and QFT in curved space. We use this comparison to respond to a recent paper [arXiv:2103.13400] in which it was argued that the Reeh-Schlieder theorem prevents weakly coupled local particle detectors from harvesting vacuum entanglement from a quantum field. Their claim can be traced back to the mixedness that a local particle detector cannot escape from because of the entanglement that it must have with the quantum fields outside","authors_text":"Bruno de S. L. Torres, Daniel Grimmer, Eduardo Mart\\'in-Mart\\'inez","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-08-05T18:00:47Z","title":"Measurements in QFT: Weakly coupled local particle detectors and entanglement harvesting"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.02794","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":"sha256:24cd60168248951a8b712e95829e1fd0a4e9bf52cfa2aeb00a1a85f7009e4be5","target":"record","created_at":"2026-07-05T03:22:23Z","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":"5acb207ee06d19a922f7fb3458038592274941c1f2ce25a2c07df2db7df149d1","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-08-05T18:00:47Z","title_canon_sha256":"a0b4ddfbc7246ff1ae5254eb1ce0036ab326874752af0e04371ae6443211d74a"},"schema_version":"1.0","source":{"id":"2108.02794","kind":"arxiv","version":2}},"canonical_sha256":"ea9f053cbca47a9017582a5cffd3b00ccc0d790ae4b467bdd29d161d01c754a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea9f053cbca47a9017582a5cffd3b00ccc0d790ae4b467bdd29d161d01c754a0","first_computed_at":"2026-07-05T03:22:23.568707Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:22:23.568707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LY8hk9v/Po8SJAPOlH6OpoYyG6I4QaqdT80e1Pk53srL5z9GYQm+f0KEWgy834A1SaiSC94lnISu4ootw897BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:22:23.569141Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.02794","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24cd60168248951a8b712e95829e1fd0a4e9bf52cfa2aeb00a1a85f7009e4be5","sha256:a2e4b809f4b067210efa4ba368d911459ac8256e5e67d57d744ca08d5e920161"],"state_sha256":"64cf5ed1c422d948662f7272d0032e7d4ee39c0d157d1d10c53efda01ded4e9d"}