{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:X2PKPNKQLDKX3ZCLB6QQG6ITMQ","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":"b44b7d7853cee1e48a6069befad3a1092b2a8eddbf54d39ce446b28ab22da4cd","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-18T18:00:00Z","title_canon_sha256":"11b8c5de821e21659ba7e2588e3dc7dae71d5d403d0c9dfc81410a7c89b60f82"},"schema_version":"1.0","source":{"id":"2605.18945","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.18945","created_at":"2026-05-20T00:06:37Z"},{"alias_kind":"arxiv_version","alias_value":"2605.18945v1","created_at":"2026-05-20T00:06:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.18945","created_at":"2026-05-20T00:06:37Z"},{"alias_kind":"pith_short_12","alias_value":"X2PKPNKQLDKX","created_at":"2026-05-20T00:06:37Z"},{"alias_kind":"pith_short_16","alias_value":"X2PKPNKQLDKX3ZCL","created_at":"2026-05-20T00:06:37Z"},{"alias_kind":"pith_short_8","alias_value":"X2PKPNKQ","created_at":"2026-05-20T00:06:37Z"}],"graph_snapshots":[{"event_id":"sha256:1346d08bfbf7e180843c6451367e2b4e8b5c3614017e03a0eeb210e88f709d53","target":"graph","created_at":"2026-05-20T00:06:37Z","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/2605.18945/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a non-perturbative method through which local probes can access the two-point function of a quantum field within a region of spacetime. By considering a lattice of gapless particle detectors, we identified the probe observables that encode the field's two-point function. We quantify the discrepancies introduced by physical finite-sized interaction regions by performing a spacetime multipole expansion of the smeared two-point function. Our protocol expresses the two-point function entirely in terms of measurable detectors correlations, providing an operational notion of states in QFT","authors_text":"Sebastian Holm\\'en, T. Rick Perche","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-18T18:00:00Z","title":"Non-perturbative measurements of two-point functions in quantum field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.18945","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:f72adb09adc0a0cbb6b79946a2d5e760f0f89ae8f833aaa498504b9884ac770f","target":"record","created_at":"2026-05-20T00:06:37Z","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":"b44b7d7853cee1e48a6069befad3a1092b2a8eddbf54d39ce446b28ab22da4cd","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-18T18:00:00Z","title_canon_sha256":"11b8c5de821e21659ba7e2588e3dc7dae71d5d403d0c9dfc81410a7c89b60f82"},"schema_version":"1.0","source":{"id":"2605.18945","kind":"arxiv","version":1}},"canonical_sha256":"be9ea7b55058d57de44b0fa1037913642de5f14d09defae22dbfd3e001d1039d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be9ea7b55058d57de44b0fa1037913642de5f14d09defae22dbfd3e001d1039d","first_computed_at":"2026-05-20T00:06:37.698587Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:06:37.698587Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vawonOoyU1VaP6aS6eOw4EpyzBgt39nOGTA7ar3jBlK+yZRxFACoqClwfJRFkGYAtNefvtuQSaN/QYNb66yeCw==","signature_status":"signed_v1","signed_at":"2026-05-20T00:06:37.699591Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.18945","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f72adb09adc0a0cbb6b79946a2d5e760f0f89ae8f833aaa498504b9884ac770f","sha256:1346d08bfbf7e180843c6451367e2b4e8b5c3614017e03a0eeb210e88f709d53"],"state_sha256":"892c6975cea33b4b9d75b705d8ce11aee0da6d88527cf01d6e3dc29e72eb8a44"}