{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:VGZ3YCRKL25GHCUEA6HAELDFRY","short_pith_number":"pith:VGZ3YCRK","canonical_record":{"source":{"id":"2203.04727","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-09T14:06:38Z","cross_cats_sorted":[],"title_canon_sha256":"27d9485d8ff4223b8153b00e68d3a618c6636c6636a8b24fc0e91c84de6ad5b0","abstract_canon_sha256":"830de95042716c6de79926ea1d65058cf260d9b057f171d522da87878a301e03"},"schema_version":"1.0"},"canonical_sha256":"a9b3bc0a2a5eba638a84078e022c658e35e3771a244ae719ef975d2df24fb34a","source":{"kind":"arxiv","id":"2203.04727","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.04727","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"arxiv_version","alias_value":"2203.04727v3","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.04727","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"pith_short_12","alias_value":"VGZ3YCRKL25G","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"pith_short_16","alias_value":"VGZ3YCRKL25GHCUE","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"pith_short_8","alias_value":"VGZ3YCRK","created_at":"2026-07-05T05:37:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:VGZ3YCRKL25GHCUEA6HAELDFRY","target":"record","payload":{"canonical_record":{"source":{"id":"2203.04727","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-09T14:06:38Z","cross_cats_sorted":[],"title_canon_sha256":"27d9485d8ff4223b8153b00e68d3a618c6636c6636a8b24fc0e91c84de6ad5b0","abstract_canon_sha256":"830de95042716c6de79926ea1d65058cf260d9b057f171d522da87878a301e03"},"schema_version":"1.0"},"canonical_sha256":"a9b3bc0a2a5eba638a84078e022c658e35e3771a244ae719ef975d2df24fb34a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:37:34.702972Z","signature_b64":"zRe1JqnIyjpeBtRJZefn/fM8KbmkI5JsGoSNbrw8qljc7AwWD1idG3s66l+SjE7pe/851dul9zIwx0hobspLAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9b3bc0a2a5eba638a84078e022c658e35e3771a244ae719ef975d2df24fb34a","last_reissued_at":"2026-07-05T05:37:34.702549Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:37:34.702549Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.04727","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:37:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DScA/him9D0d4dia+dgF4LTXUvyEjCjyi33RYkCoj87vid6RhlCBVr8gIT6KZ0h4VmSFbx+M4TnMbid0re4pDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T06:46:30.058784Z"},"content_sha256":"8474a3babe118afd1f0aa40e42da65516cd28bb78eaf2bf63ebb87a16ab293b4","schema_version":"1.0","event_id":"sha256:8474a3babe118afd1f0aa40e42da65516cd28bb78eaf2bf63ebb87a16ab293b4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:VGZ3YCRKL25GHCUEA6HAELDFRY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Persistent nonlocality in an ultracold-atom environment","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bradley Longstaff, Jonatan Bohr Brask","submitted_at":"2022-03-09T14:06:38Z","abstract_excerpt":"We investigate nonlocal quantum correlations arising between multiple two-level impurity atoms coupled to an ultracold bosonic gas. We find that the environment-induced dynamics of the impurity subsystem can generate nonlocal states that are robust against noise and violate a multipartite Bell inequality when projective spin measurements are made. Genuine multipartite nonlocality is also observed in a system of three impurities. We show that non-Markovian effects, and the persistence of coherences in the impurity subsystem, are crucial for preventing complete loss of nonlocality and allow for "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.04727","kind":"arxiv","version":3},"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/2203.04727/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":"2026-07-05T05:37:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qsmhHKwskNjTN+oi/tRKUzy7O2Tb68j4vemuOl3QaN9t8Jmnxc4gMJABg6stKtTDun7nWjCtYspvq+RanShEBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T06:46:30.059147Z"},"content_sha256":"e370607ddf00c4741e8522c1e18386c24aedc7063357825cc26424c29a6026c5","schema_version":"1.0","event_id":"sha256:e370607ddf00c4741e8522c1e18386c24aedc7063357825cc26424c29a6026c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VGZ3YCRKL25GHCUEA6HAELDFRY/bundle.json","state_url":"https://pith.science/pith/VGZ3YCRKL25GHCUEA6HAELDFRY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VGZ3YCRKL25GHCUEA6HAELDFRY/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":"2026-07-17T06:46:30Z","links":{"resolver":"https://pith.science/pith/VGZ3YCRKL25GHCUEA6HAELDFRY","bundle":"https://pith.science/pith/VGZ3YCRKL25GHCUEA6HAELDFRY/bundle.json","state":"https://pith.science/pith/VGZ3YCRKL25GHCUEA6HAELDFRY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VGZ3YCRKL25GHCUEA6HAELDFRY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:VGZ3YCRKL25GHCUEA6HAELDFRY","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":"830de95042716c6de79926ea1d65058cf260d9b057f171d522da87878a301e03","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-09T14:06:38Z","title_canon_sha256":"27d9485d8ff4223b8153b00e68d3a618c6636c6636a8b24fc0e91c84de6ad5b0"},"schema_version":"1.0","source":{"id":"2203.04727","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.04727","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"arxiv_version","alias_value":"2203.04727v3","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.04727","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"pith_short_12","alias_value":"VGZ3YCRKL25G","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"pith_short_16","alias_value":"VGZ3YCRKL25GHCUE","created_at":"2026-07-05T05:37:34Z"},{"alias_kind":"pith_short_8","alias_value":"VGZ3YCRK","created_at":"2026-07-05T05:37:34Z"}],"graph_snapshots":[{"event_id":"sha256:e370607ddf00c4741e8522c1e18386c24aedc7063357825cc26424c29a6026c5","target":"graph","created_at":"2026-07-05T05:37:34Z","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/2203.04727/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate nonlocal quantum correlations arising between multiple two-level impurity atoms coupled to an ultracold bosonic gas. We find that the environment-induced dynamics of the impurity subsystem can generate nonlocal states that are robust against noise and violate a multipartite Bell inequality when projective spin measurements are made. Genuine multipartite nonlocality is also observed in a system of three impurities. We show that non-Markovian effects, and the persistence of coherences in the impurity subsystem, are crucial for preventing complete loss of nonlocality and allow for ","authors_text":"Bradley Longstaff, Jonatan Bohr Brask","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-09T14:06:38Z","title":"Persistent nonlocality in an ultracold-atom environment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.04727","kind":"arxiv","version":3},"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":"sha256:8474a3babe118afd1f0aa40e42da65516cd28bb78eaf2bf63ebb87a16ab293b4","target":"record","created_at":"2026-07-05T05:37:34Z","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":"830de95042716c6de79926ea1d65058cf260d9b057f171d522da87878a301e03","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-09T14:06:38Z","title_canon_sha256":"27d9485d8ff4223b8153b00e68d3a618c6636c6636a8b24fc0e91c84de6ad5b0"},"schema_version":"1.0","source":{"id":"2203.04727","kind":"arxiv","version":3}},"canonical_sha256":"a9b3bc0a2a5eba638a84078e022c658e35e3771a244ae719ef975d2df24fb34a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9b3bc0a2a5eba638a84078e022c658e35e3771a244ae719ef975d2df24fb34a","first_computed_at":"2026-07-05T05:37:34.702549Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:37:34.702549Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zRe1JqnIyjpeBtRJZefn/fM8KbmkI5JsGoSNbrw8qljc7AwWD1idG3s66l+SjE7pe/851dul9zIwx0hobspLAA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:37:34.702972Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.04727","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8474a3babe118afd1f0aa40e42da65516cd28bb78eaf2bf63ebb87a16ab293b4","sha256:e370607ddf00c4741e8522c1e18386c24aedc7063357825cc26424c29a6026c5"],"state_sha256":"20ccae8d1276c312825d66206174b9f6f12ab2d1a520a482910fc328f17d8e9d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gEmXXreMr4xif+GNYpwDrmUtCbv8lGJ/mox4a5v1Kg/9BEXGD7vB8sW3YuKN9CqdWerofwN+ir7boXw2BwBWDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-17T06:46:30.061121Z","bundle_sha256":"0c77f357ab73d2109afd9ec548d87ee842f4ec0e47443d5b405a2db4b995f438"}}