{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:5FVXKWH3MDVBPYDTPZAYVAK6TA","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":"3e426d2394b8336b06e0903efa9cd4f610a9aadfff7f5585e0933be20f42ff0f","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-02-07T17:29:33Z","title_canon_sha256":"274d307b8cb673e7c176caa730ef68b28d24cb088ef7dbc0a634d8a69eb1ff13"},"schema_version":"1.0","source":{"id":"2202.03368","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.03368","created_at":"2026-07-05T07:20:37Z"},{"alias_kind":"arxiv_version","alias_value":"2202.03368v2","created_at":"2026-07-05T07:20:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.03368","created_at":"2026-07-05T07:20:37Z"},{"alias_kind":"pith_short_12","alias_value":"5FVXKWH3MDVB","created_at":"2026-07-05T07:20:37Z"},{"alias_kind":"pith_short_16","alias_value":"5FVXKWH3MDVBPYDT","created_at":"2026-07-05T07:20:37Z"},{"alias_kind":"pith_short_8","alias_value":"5FVXKWH3","created_at":"2026-07-05T07:20:37Z"}],"graph_snapshots":[{"event_id":"sha256:cf4c74ad301ae3414fcc25f8dcaa1081f9bfc3fddc85465949fb10588bf21dbd","target":"graph","created_at":"2026-07-05T07:20:37Z","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/2202.03368/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The current interest in laboratory detection of entanglement mediated by gravity was sparked by an information--theoretic argument: entanglement mediated by a local field certifies that the field is not classical. Previous derivations of the effect modelled gravity as instantaneous; here we derive it from linearised quantum general relativity while keeping Lorentz invariance explicit, using the path integral formalism. In this framework, entanglement is clearly mediated by a quantum feature of the field. We also point out the possibility of observing retarded entanglement, which cannot be expl","authors_text":"Andrea Di Biagio, Carlo Rovelli, Marios Christodoulou, Markus Aspelmeyer, Richard Howl, \\v{C}aslav Brukner","cross_cats":["gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-02-07T17:29:33Z","title":"Locally mediated entanglement in linearised quantum gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.03368","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":"sha256:925ae0e642f07f3ea1fe6501d79dbeb471770b045d356b5cf22483d98966d740","target":"record","created_at":"2026-07-05T07:20:37Z","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":"3e426d2394b8336b06e0903efa9cd4f610a9aadfff7f5585e0933be20f42ff0f","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-02-07T17:29:33Z","title_canon_sha256":"274d307b8cb673e7c176caa730ef68b28d24cb088ef7dbc0a634d8a69eb1ff13"},"schema_version":"1.0","source":{"id":"2202.03368","kind":"arxiv","version":2}},"canonical_sha256":"e96b7558fb60ea17e0737e418a815e982d2f6c85d337946640b6dd97ee15af2f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e96b7558fb60ea17e0737e418a815e982d2f6c85d337946640b6dd97ee15af2f","first_computed_at":"2026-07-05T07:20:37.203845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:20:37.203845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PrlJE/DGwAr8NxtY0w85RdjBsSi8RirkmyxbN66C7thuH3TcrilclVD5/tNVqNuc0FOvuPzPmbQOBoS/PWOmDA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:20:37.204285Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.03368","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:925ae0e642f07f3ea1fe6501d79dbeb471770b045d356b5cf22483d98966d740","sha256:cf4c74ad301ae3414fcc25f8dcaa1081f9bfc3fddc85465949fb10588bf21dbd"],"state_sha256":"c9fff4fa6ca5e05371513ae4fc2c95ba8838eef217adea2e8d625a29b4ec2044"}