{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:MEP7V7ZTPESETKH5PXYZJS3LCG","short_pith_number":"pith:MEP7V7ZT","canonical_record":{"source":{"id":"1105.2548","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-12T19:03:49Z","cross_cats_sorted":["cond-mat.stat-mech","cond-mat.str-el"],"title_canon_sha256":"121ae1190291c84886aa96d13969d1252e19fb095347cd8e09532b931505e327","abstract_canon_sha256":"239844b41a6dd2e7b2d8b32501a2d3d631ed0ceb7da033623ba2d1cdfce7da90"},"schema_version":"1.0"},"canonical_sha256":"611ffaff33792449a8fd7df194cb6b11b6a68e2e7a3f30f7862532c6e0819026","source":{"kind":"arxiv","id":"1105.2548","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.2548","created_at":"2026-05-18T04:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"1105.2548v3","created_at":"2026-05-18T04:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.2548","created_at":"2026-05-18T04:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"MEP7V7ZTPESE","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MEP7V7ZTPESETKH5","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MEP7V7ZT","created_at":"2026-05-18T12:26:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:MEP7V7ZTPESETKH5PXYZJS3LCG","target":"record","payload":{"canonical_record":{"source":{"id":"1105.2548","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-12T19:03:49Z","cross_cats_sorted":["cond-mat.stat-mech","cond-mat.str-el"],"title_canon_sha256":"121ae1190291c84886aa96d13969d1252e19fb095347cd8e09532b931505e327","abstract_canon_sha256":"239844b41a6dd2e7b2d8b32501a2d3d631ed0ceb7da033623ba2d1cdfce7da90"},"schema_version":"1.0"},"canonical_sha256":"611ffaff33792449a8fd7df194cb6b11b6a68e2e7a3f30f7862532c6e0819026","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:07:41.694590Z","signature_b64":"tbHgJ0TSU2rHlOVmBGrku1Vcm96njXh7NpN5v7HxwSf2eWtnZ5Yhfrxi/iQ+6E4VBTBn88ra7ISXc50yFn9pDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"611ffaff33792449a8fd7df194cb6b11b6a68e2e7a3f30f7862532c6e0819026","last_reissued_at":"2026-05-18T04:07:41.693867Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:07:41.693867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.2548","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":"2026-05-18T04:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WM5MJ2nBK9tBCHUR5P1pnEFYW8Q0JDJ9kFTOdy2ZqvsLYOJY0ToEHxxlKXVhuzdnCVB7Yqypr3/re1NWlLveAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:22:04.078792Z"},"content_sha256":"634c4b4f8ae96cb55b1e3f122c766d0a88d109fde267e7e17637e43deffb73f2","schema_version":"1.0","event_id":"sha256:634c4b4f8ae96cb55b1e3f122c766d0a88d109fde267e7e17637e43deffb73f2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:MEP7V7ZTPESETKH5PXYZJS3LCG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Global Quantum Discord in Multipartite Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","cond-mat.str-el"],"primary_cat":"quant-ph","authors_text":"C. C. Rulli, M. S. Sarandy","submitted_at":"2011-05-12T19:03:49Z","abstract_excerpt":"We propose a global measure for quantum correlations in multipartite systems, which is obtained by suitably recasting the quantum discord in terms of relative entropy and local von Neumann measurements. The measure is symmetric with respect to subsystem exchange and is shown to be non-negative for an arbitrary state. As an illustration, we consider tripartite correlations in the Werner-GHZ state and multipartite correlations at quantum criticality. In particular, in contrast with the pairwise quantum discord, we show that the global quantum discord is able to characterize the infinite-order qu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.2548","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":""},"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":"2026-05-18T04:07:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nwxxe0tO8djvYAWfCgBnuNhq+p02PNa7Qm6dMT9m1J5iFrI5QkBkC9GxtTnYqAJAxMFca3p2rF+4Wf1O0j/sCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:22:04.079135Z"},"content_sha256":"5d06f6de6d2fb1f59ac5f47ced9d7487f9affe8d5ffcdedccb7b07e5c7019957","schema_version":"1.0","event_id":"sha256:5d06f6de6d2fb1f59ac5f47ced9d7487f9affe8d5ffcdedccb7b07e5c7019957"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MEP7V7ZTPESETKH5PXYZJS3LCG/bundle.json","state_url":"https://pith.science/pith/MEP7V7ZTPESETKH5PXYZJS3LCG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MEP7V7ZTPESETKH5PXYZJS3LCG/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":"2026-06-03T03:22:04Z","links":{"resolver":"https://pith.science/pith/MEP7V7ZTPESETKH5PXYZJS3LCG","bundle":"https://pith.science/pith/MEP7V7ZTPESETKH5PXYZJS3LCG/bundle.json","state":"https://pith.science/pith/MEP7V7ZTPESETKH5PXYZJS3LCG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MEP7V7ZTPESETKH5PXYZJS3LCG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:MEP7V7ZTPESETKH5PXYZJS3LCG","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":"239844b41a6dd2e7b2d8b32501a2d3d631ed0ceb7da033623ba2d1cdfce7da90","cross_cats_sorted":["cond-mat.stat-mech","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-12T19:03:49Z","title_canon_sha256":"121ae1190291c84886aa96d13969d1252e19fb095347cd8e09532b931505e327"},"schema_version":"1.0","source":{"id":"1105.2548","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.2548","created_at":"2026-05-18T04:07:41Z"},{"alias_kind":"arxiv_version","alias_value":"1105.2548v3","created_at":"2026-05-18T04:07:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.2548","created_at":"2026-05-18T04:07:41Z"},{"alias_kind":"pith_short_12","alias_value":"MEP7V7ZTPESE","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_16","alias_value":"MEP7V7ZTPESETKH5","created_at":"2026-05-18T12:26:34Z"},{"alias_kind":"pith_short_8","alias_value":"MEP7V7ZT","created_at":"2026-05-18T12:26:34Z"}],"graph_snapshots":[{"event_id":"sha256:5d06f6de6d2fb1f59ac5f47ced9d7487f9affe8d5ffcdedccb7b07e5c7019957","target":"graph","created_at":"2026-05-18T04:07:41Z","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"},"paper":{"abstract_excerpt":"We propose a global measure for quantum correlations in multipartite systems, which is obtained by suitably recasting the quantum discord in terms of relative entropy and local von Neumann measurements. The measure is symmetric with respect to subsystem exchange and is shown to be non-negative for an arbitrary state. As an illustration, we consider tripartite correlations in the Werner-GHZ state and multipartite correlations at quantum criticality. In particular, in contrast with the pairwise quantum discord, we show that the global quantum discord is able to characterize the infinite-order qu","authors_text":"C. C. Rulli, M. S. Sarandy","cross_cats":["cond-mat.stat-mech","cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-12T19:03:49Z","title":"Global Quantum Discord in Multipartite Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.2548","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":"sha256:634c4b4f8ae96cb55b1e3f122c766d0a88d109fde267e7e17637e43deffb73f2","target":"record","created_at":"2026-05-18T04:07:41Z","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":"239844b41a6dd2e7b2d8b32501a2d3d631ed0ceb7da033623ba2d1cdfce7da90","cross_cats_sorted":["cond-mat.stat-mech","cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-05-12T19:03:49Z","title_canon_sha256":"121ae1190291c84886aa96d13969d1252e19fb095347cd8e09532b931505e327"},"schema_version":"1.0","source":{"id":"1105.2548","kind":"arxiv","version":3}},"canonical_sha256":"611ffaff33792449a8fd7df194cb6b11b6a68e2e7a3f30f7862532c6e0819026","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"611ffaff33792449a8fd7df194cb6b11b6a68e2e7a3f30f7862532c6e0819026","first_computed_at":"2026-05-18T04:07:41.693867Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:41.693867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tbHgJ0TSU2rHlOVmBGrku1Vcm96njXh7NpN5v7HxwSf2eWtnZ5Yhfrxi/iQ+6E4VBTBn88ra7ISXc50yFn9pDw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:41.694590Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.2548","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:634c4b4f8ae96cb55b1e3f122c766d0a88d109fde267e7e17637e43deffb73f2","sha256:5d06f6de6d2fb1f59ac5f47ced9d7487f9affe8d5ffcdedccb7b07e5c7019957"],"state_sha256":"43131bce20689454dc3732e2c77f83c147e752ded0fe7e84348871d998e41f51"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jGA08+AhrVRnN0eQBOpsZRoAZn5B4cokh1Lb4obk8bzVP848GrRCPoIWOC7+ytz8fw52CzGajL4vPiTtqe4/BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T03:22:04.081213Z","bundle_sha256":"671c397ad2b688961fd220b15cefbe3ff843898cc59bcda7ba3d730a17a34769"}}