{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:ATEIMJFKUB2VI3RNH6HJKJE47C","short_pith_number":"pith:ATEIMJFK","canonical_record":{"source":{"id":"1110.5512","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-25T14:22:49Z","cross_cats_sorted":[],"title_canon_sha256":"2750919f0649d236ec35f6121a144dfb64fd67eacd75e95ea29d12682f736be3","abstract_canon_sha256":"2478a1869a5da4b34ffb888602dbbdcd00cb39db6b4fa0f065a68dce93926756"},"schema_version":"1.0"},"canonical_sha256":"04c88624aaa075546e2d3f8e95249cf88f9aac08bc596fdc34c78f1a55f3af73","source":{"kind":"arxiv","id":"1110.5512","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.5512","created_at":"2026-05-18T02:00:04Z"},{"alias_kind":"arxiv_version","alias_value":"1110.5512v2","created_at":"2026-05-18T02:00:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.5512","created_at":"2026-05-18T02:00:04Z"},{"alias_kind":"pith_short_12","alias_value":"ATEIMJFKUB2V","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"ATEIMJFKUB2VI3RN","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"ATEIMJFK","created_at":"2026-05-18T12:26:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:ATEIMJFKUB2VI3RNH6HJKJE47C","target":"record","payload":{"canonical_record":{"source":{"id":"1110.5512","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-25T14:22:49Z","cross_cats_sorted":[],"title_canon_sha256":"2750919f0649d236ec35f6121a144dfb64fd67eacd75e95ea29d12682f736be3","abstract_canon_sha256":"2478a1869a5da4b34ffb888602dbbdcd00cb39db6b4fa0f065a68dce93926756"},"schema_version":"1.0"},"canonical_sha256":"04c88624aaa075546e2d3f8e95249cf88f9aac08bc596fdc34c78f1a55f3af73","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:04.100085Z","signature_b64":"r9sZV0rzW2SMIHv4mPhakwBaUEY9da2MMmldshYyNfSKuMdOcT28bQPzj7Cfe/J9pnXw27fSKshyxrxZXxUqDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04c88624aaa075546e2d3f8e95249cf88f9aac08bc596fdc34c78f1a55f3af73","last_reissued_at":"2026-05-18T02:00:04.099523Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:04.099523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1110.5512","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+IaqJS6XBAvBO6+7WnJfJjiH3MsWngMbSF15Rou1YKgcaLyLHR4GAj+p7yXoLANOnZ2//Sh7ur0eKKcI01OMBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:11:45.509258Z"},"content_sha256":"440fc1ff38809929229e243f4d88c541d2ffc70eaaa352bc2239380d6ccdab26","schema_version":"1.0","event_id":"sha256:440fc1ff38809929229e243f4d88c541d2ffc70eaaa352bc2239380d6ccdab26"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:ATEIMJFKUB2VI3RNH6HJKJE47C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Testing the Structure of Multipartite Entanglement with Bell Inequalities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"James Sharam, Nicolas Brunner, Tamas Vertesi","submitted_at":"2011-10-25T14:22:49Z","abstract_excerpt":"We show that the rich structure of multipartite entanglement can be tested following a device-independent approach. Specifically we present Bell inequalities for distinguishing between different types of multipartite entanglement, without placing any assumptions on the measurement devices used in the protocol, in contrast with usual entanglement witnesses. We first address the case of three qubits and present Bell inequalities that can be violated by W states but not by GHZ states, and vice versa. Next, we devise 'sub-correlation Bell inequalities' for any number of parties, which can provably"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.5512","kind":"arxiv","version":2},"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":"2026-05-18T02:00:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OoeA+pKXjD+gQcYnwqRSXNOFBQ+eQLUfynduXtk/en7fcdISJnCbaiZCK4RNFeVI/rCZ5vw9ECsEtQzbSWtfAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:11:45.509778Z"},"content_sha256":"b84e3dc9ad5b08c50df963a62f7bde616b4c4cb75ff3f154629f500e145a9203","schema_version":"1.0","event_id":"sha256:b84e3dc9ad5b08c50df963a62f7bde616b4c4cb75ff3f154629f500e145a9203"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ATEIMJFKUB2VI3RNH6HJKJE47C/bundle.json","state_url":"https://pith.science/pith/ATEIMJFKUB2VI3RNH6HJKJE47C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ATEIMJFKUB2VI3RNH6HJKJE47C/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":"2026-05-25T16:11:45Z","links":{"resolver":"https://pith.science/pith/ATEIMJFKUB2VI3RNH6HJKJE47C","bundle":"https://pith.science/pith/ATEIMJFKUB2VI3RNH6HJKJE47C/bundle.json","state":"https://pith.science/pith/ATEIMJFKUB2VI3RNH6HJKJE47C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ATEIMJFKUB2VI3RNH6HJKJE47C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:ATEIMJFKUB2VI3RNH6HJKJE47C","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":"2478a1869a5da4b34ffb888602dbbdcd00cb39db6b4fa0f065a68dce93926756","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-25T14:22:49Z","title_canon_sha256":"2750919f0649d236ec35f6121a144dfb64fd67eacd75e95ea29d12682f736be3"},"schema_version":"1.0","source":{"id":"1110.5512","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.5512","created_at":"2026-05-18T02:00:04Z"},{"alias_kind":"arxiv_version","alias_value":"1110.5512v2","created_at":"2026-05-18T02:00:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.5512","created_at":"2026-05-18T02:00:04Z"},{"alias_kind":"pith_short_12","alias_value":"ATEIMJFKUB2V","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_16","alias_value":"ATEIMJFKUB2VI3RN","created_at":"2026-05-18T12:26:24Z"},{"alias_kind":"pith_short_8","alias_value":"ATEIMJFK","created_at":"2026-05-18T12:26:24Z"}],"graph_snapshots":[{"event_id":"sha256:b84e3dc9ad5b08c50df963a62f7bde616b4c4cb75ff3f154629f500e145a9203","target":"graph","created_at":"2026-05-18T02:00:04Z","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 show that the rich structure of multipartite entanglement can be tested following a device-independent approach. Specifically we present Bell inequalities for distinguishing between different types of multipartite entanglement, without placing any assumptions on the measurement devices used in the protocol, in contrast with usual entanglement witnesses. We first address the case of three qubits and present Bell inequalities that can be violated by W states but not by GHZ states, and vice versa. Next, we devise 'sub-correlation Bell inequalities' for any number of parties, which can provably","authors_text":"James Sharam, Nicolas Brunner, Tamas Vertesi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-25T14:22:49Z","title":"Testing the Structure of Multipartite Entanglement with Bell Inequalities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.5512","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":"sha256:440fc1ff38809929229e243f4d88c541d2ffc70eaaa352bc2239380d6ccdab26","target":"record","created_at":"2026-05-18T02:00:04Z","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":"2478a1869a5da4b34ffb888602dbbdcd00cb39db6b4fa0f065a68dce93926756","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-10-25T14:22:49Z","title_canon_sha256":"2750919f0649d236ec35f6121a144dfb64fd67eacd75e95ea29d12682f736be3"},"schema_version":"1.0","source":{"id":"1110.5512","kind":"arxiv","version":2}},"canonical_sha256":"04c88624aaa075546e2d3f8e95249cf88f9aac08bc596fdc34c78f1a55f3af73","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04c88624aaa075546e2d3f8e95249cf88f9aac08bc596fdc34c78f1a55f3af73","first_computed_at":"2026-05-18T02:00:04.099523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:04.099523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r9sZV0rzW2SMIHv4mPhakwBaUEY9da2MMmldshYyNfSKuMdOcT28bQPzj7Cfe/J9pnXw27fSKshyxrxZXxUqDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:04.100085Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.5512","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:440fc1ff38809929229e243f4d88c541d2ffc70eaaa352bc2239380d6ccdab26","sha256:b84e3dc9ad5b08c50df963a62f7bde616b4c4cb75ff3f154629f500e145a9203"],"state_sha256":"b7b521d3991f04d409c5d525822d6861b3e3ab5850606d14c448e3fd6b800477"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BpiUnnAPlAw0IOtu7RvFHFxFoxNCWa6482VbRC7Aa9Je4HZeciF4GVpVyxtUOiuoh72yYwUAEjAlXHhct2kCBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:11:45.513336Z","bundle_sha256":"7fed951807177f80ff9b47d6183120dcfa7648607abd3768885cb46b93f29040"}}