{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:IHYOEHLBPEARJ7GAKTXBEIOTY3","short_pith_number":"pith:IHYOEHLB","canonical_record":{"source":{"id":"2607.08462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-09T13:21:09Z","cross_cats_sorted":[],"title_canon_sha256":"b2d758f825ceda7efe1e2df5346b25bbd44c7e13e68266f416054c640cc322b3","abstract_canon_sha256":"0099d380ba88efc16a507452ba1f4725851c89e5932dcf7007db0ff668d0a27b"},"schema_version":"1.0"},"canonical_sha256":"41f0e21d61790114fcc054ee1221d3c6ee26ebcd0baada708c3a45db8a8d3f19","source":{"kind":"arxiv","id":"2607.08462","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.08462","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"arxiv_version","alias_value":"2607.08462v1","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.08462","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"pith_short_12","alias_value":"IHYOEHLBPEAR","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"pith_short_16","alias_value":"IHYOEHLBPEARJ7GA","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"pith_short_8","alias_value":"IHYOEHLB","created_at":"2026-07-10T01:19:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:IHYOEHLBPEARJ7GAKTXBEIOTY3","target":"record","payload":{"canonical_record":{"source":{"id":"2607.08462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-09T13:21:09Z","cross_cats_sorted":[],"title_canon_sha256":"b2d758f825ceda7efe1e2df5346b25bbd44c7e13e68266f416054c640cc322b3","abstract_canon_sha256":"0099d380ba88efc16a507452ba1f4725851c89e5932dcf7007db0ff668d0a27b"},"schema_version":"1.0"},"canonical_sha256":"41f0e21d61790114fcc054ee1221d3c6ee26ebcd0baada708c3a45db8a8d3f19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-10T01:19:51.258611Z","signature_b64":"aCJBNyMxHuHRPqM1Hlc885rIiFfdGaaZJ/iwFqTLMwaNgk8FrP+d+mbBExPIz6HpSORyXingqS8w8nlbY16oDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"41f0e21d61790114fcc054ee1221d3c6ee26ebcd0baada708c3a45db8a8d3f19","last_reissued_at":"2026-07-10T01:19:51.258225Z","signature_status":"signed_v1","first_computed_at":"2026-07-10T01:19:51.258225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.08462","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-10T01:19:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/CRi/WVtPs6UnWSCY/zQDPjzfmt5uZIPp3j52QAKlx/kw0GT4wmPE3P8xjblp5CvrZBDo1iXGWXTAzSOY7E3AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T02:05:05.320573Z"},"content_sha256":"f94a2964864c1c5fd2858f69aac46d601ee61d89bca1ba04a2481e33d488af68","schema_version":"1.0","event_id":"sha256:f94a2964864c1c5fd2858f69aac46d601ee61d89bca1ba04a2481e33d488af68"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:IHYOEHLBPEARJ7GAKTXBEIOTY3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimizing and Certifying Multipartite Permutationally Invariant Bell Inequalities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jin-Fu Chen, Jordi Tura, Mengyao Hu","submitted_at":"2026-07-09T13:21:09Z","abstract_excerpt":"Multipartite Bell nonlocality provides a device-independent probe of many-body quantum correlations, but its characterization is limited by the rapid growth of the underlying classical and quantum optimization problems. We develop a scalable method for constructing and certifying permutationally invariant Bell inequalities using only one- and two-body correlators. The construction gives families of inequalities with robust quantum violations for general $m$ measurements as the number of parties $N$ becomes large. To improve robustness against noise, we optimize the ratio of the quantum value t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.08462","kind":"arxiv","version":1},"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/2607.08462/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":"2026-07-10T01:19:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PHjT3UATfli5g03wvYbFmJ7MfpzWi0v8Fl2zDAoguHww4sDONFEXagNIcQxA/iyuv5hMjWaQw6dVcxjaNFGcBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T02:05:05.321078Z"},"content_sha256":"1af6a384f114b57a89a374097f63afd4498c848d2693a580587a057f65d50bf0","schema_version":"1.0","event_id":"sha256:1af6a384f114b57a89a374097f63afd4498c848d2693a580587a057f65d50bf0"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:IHYOEHLBPEARJ7GAKTXBEIOTY3","target":"integrity","payload":{"note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. A longer candidate (10.1038/s41534-026-21) was visible in the surrounding text but could not be confirmed against doi.org as printed.","snippet":"G. M¨ uller-Rigat, A. Aloy, M. Lewenstein, M. Fadel, and J. Tura, npj Quantum Information 10.1038/s41534-026- 21 01261-8 (2026)","arxiv_id":"2607.08462","detector":"doi_compliance","evidence":{"ref_index":55,"verdict_class":"incontrovertible","resolved_title":null,"printed_excerpt":"G. M¨ uller-Rigat, A. Aloy, M. Lewenstein, M. Fadel, and J. Tura, npj Quantum Information 10.1038/s41534-026- 21 01261-8 (2026)","reconstructed_doi":"10.1038/s41534-026-21"},"severity":"advisory","ref_index":55,"audited_at":"2026-07-10T07:11:49.557897Z","event_type":"pith.integrity.v1","detected_doi":"10.1038/s41534-026-21","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"recoverable_identifier","evidence_hash":"4ce4d75e078c98bd5ff672a175464c3d60cc47090b79ecdd9f01844c9871f558","paper_version":1,"verdict_class":"incontrovertible","resolved_title":null,"detector_version":"1.0.0","detected_arxiv_id":null,"integrity_event_id":11894,"payload_sha256":"19564488eb814ebc1c1d6460708b92c8e4f709957143f43bc00571553d901d7d","signature_b64":"x9DTonrfIOtSflpIN8nAUWfWeWBaUGhNshrg2jLMuBoEueF6o1NHDy3POFzBxjrraIyMXgbC0vLgAseidtHUBg==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-10T07:13:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q41C7KsdyPr1Gofwh1mOVKfFPkDl8HJd1RAAeqYrPsWMQT+n+yqlHyeVYhmXMQ5tHSw/mFK/dOnVGNsZEbEbAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T02:05:05.325477Z"},"content_sha256":"0abdf742e1b48683c335947d975a7b6a4af38166f8732f857043b6606ace5c69","schema_version":"1.0","event_id":"sha256:0abdf742e1b48683c335947d975a7b6a4af38166f8732f857043b6606ace5c69"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IHYOEHLBPEARJ7GAKTXBEIOTY3/bundle.json","state_url":"https://pith.science/pith/IHYOEHLBPEARJ7GAKTXBEIOTY3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IHYOEHLBPEARJ7GAKTXBEIOTY3/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":"2026-08-23T02:05:05Z","links":{"resolver":"https://pith.science/pith/IHYOEHLBPEARJ7GAKTXBEIOTY3","bundle":"https://pith.science/pith/IHYOEHLBPEARJ7GAKTXBEIOTY3/bundle.json","state":"https://pith.science/pith/IHYOEHLBPEARJ7GAKTXBEIOTY3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IHYOEHLBPEARJ7GAKTXBEIOTY3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:IHYOEHLBPEARJ7GAKTXBEIOTY3","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"0099d380ba88efc16a507452ba1f4725851c89e5932dcf7007db0ff668d0a27b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-09T13:21:09Z","title_canon_sha256":"b2d758f825ceda7efe1e2df5346b25bbd44c7e13e68266f416054c640cc322b3"},"schema_version":"1.0","source":{"id":"2607.08462","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.08462","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"arxiv_version","alias_value":"2607.08462v1","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.08462","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"pith_short_12","alias_value":"IHYOEHLBPEAR","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"pith_short_16","alias_value":"IHYOEHLBPEARJ7GA","created_at":"2026-07-10T01:19:51Z"},{"alias_kind":"pith_short_8","alias_value":"IHYOEHLB","created_at":"2026-07-10T01:19:51Z"}],"graph_snapshots":[{"event_id":"sha256:1af6a384f114b57a89a374097f63afd4498c848d2693a580587a057f65d50bf0","target":"graph","created_at":"2026-07-10T01:19:51Z","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/2607.08462/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Multipartite Bell nonlocality provides a device-independent probe of many-body quantum correlations, but its characterization is limited by the rapid growth of the underlying classical and quantum optimization problems. We develop a scalable method for constructing and certifying permutationally invariant Bell inequalities using only one- and two-body correlators. The construction gives families of inequalities with robust quantum violations for general $m$ measurements as the number of parties $N$ becomes large. To improve robustness against noise, we optimize the ratio of the quantum value t","authors_text":"Jin-Fu Chen, Jordi Tura, Mengyao Hu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-09T13:21:09Z","title":"Optimizing and Certifying Multipartite Permutationally Invariant Bell Inequalities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.08462","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:f94a2964864c1c5fd2858f69aac46d601ee61d89bca1ba04a2481e33d488af68","target":"record","created_at":"2026-07-10T01:19:51Z","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":"0099d380ba88efc16a507452ba1f4725851c89e5932dcf7007db0ff668d0a27b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-09T13:21:09Z","title_canon_sha256":"b2d758f825ceda7efe1e2df5346b25bbd44c7e13e68266f416054c640cc322b3"},"schema_version":"1.0","source":{"id":"2607.08462","kind":"arxiv","version":1}},"canonical_sha256":"41f0e21d61790114fcc054ee1221d3c6ee26ebcd0baada708c3a45db8a8d3f19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"41f0e21d61790114fcc054ee1221d3c6ee26ebcd0baada708c3a45db8a8d3f19","first_computed_at":"2026-07-10T01:19:51.258225Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-10T01:19:51.258225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aCJBNyMxHuHRPqM1Hlc885rIiFfdGaaZJ/iwFqTLMwaNgk8FrP+d+mbBExPIz6HpSORyXingqS8w8nlbY16oDA==","signature_status":"signed_v1","signed_at":"2026-07-10T01:19:51.258611Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.08462","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f94a2964864c1c5fd2858f69aac46d601ee61d89bca1ba04a2481e33d488af68","sha256:1af6a384f114b57a89a374097f63afd4498c848d2693a580587a057f65d50bf0","sha256:0abdf742e1b48683c335947d975a7b6a4af38166f8732f857043b6606ace5c69"],"state_sha256":"0a2856abb04731337a3493997343c1d358d7333ebf3a0e6f8001d77cc636bd1c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LVPgI3wUuceILFotXZZtmToFnDigcpdNaiM5XZzWlLiQj2rG7ojCT+5oFOSAvI3weRkqV9YwvSP88eEGBCI7Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T02:05:05.327541Z","bundle_sha256":"93c3a0c4633859f3fd3aff08b1eeec932f9e042c196ca1b1ea68e44354968721"}}