{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:AQ7MGX7ZFML4NHYI5ZA4PZFZ5B","short_pith_number":"pith:AQ7MGX7Z","canonical_record":{"source":{"id":"1609.08025","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-09-26T15:30:54Z","cross_cats_sorted":[],"title_canon_sha256":"d472bbff978c34542a515fb1934d1d710391018b6c974e1af4adaa25178c3ef1","abstract_canon_sha256":"70a85448727698bcbf580258e87a0d5f97f06fd8bdff1900be1ca815e1c2a983"},"schema_version":"1.0"},"canonical_sha256":"043ec35ff92b17c69f08ee41c7e4b9e844e8192f9776d6b5f199a6b255d88540","source":{"kind":"arxiv","id":"1609.08025","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.08025","created_at":"2026-05-18T01:03:54Z"},{"alias_kind":"arxiv_version","alias_value":"1609.08025v1","created_at":"2026-05-18T01:03:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.08025","created_at":"2026-05-18T01:03:54Z"},{"alias_kind":"pith_short_12","alias_value":"AQ7MGX7ZFML4","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"AQ7MGX7ZFML4NHYI","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"AQ7MGX7Z","created_at":"2026-05-18T12:30:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:AQ7MGX7ZFML4NHYI5ZA4PZFZ5B","target":"record","payload":{"canonical_record":{"source":{"id":"1609.08025","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-09-26T15:30:54Z","cross_cats_sorted":[],"title_canon_sha256":"d472bbff978c34542a515fb1934d1d710391018b6c974e1af4adaa25178c3ef1","abstract_canon_sha256":"70a85448727698bcbf580258e87a0d5f97f06fd8bdff1900be1ca815e1c2a983"},"schema_version":"1.0"},"canonical_sha256":"043ec35ff92b17c69f08ee41c7e4b9e844e8192f9776d6b5f199a6b255d88540","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:54.644622Z","signature_b64":"sT0Vufn8SgZeQj5l1zisKKDIvVwjaOEeonJCRtX9xqFMFYxqq7XQT2iVRWSPgegTNG7I/aCphtXEaaDygvsPBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"043ec35ff92b17c69f08ee41c7e4b9e844e8192f9776d6b5f199a6b255d88540","last_reissued_at":"2026-05-18T01:03:54.644075Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:54.644075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.08025","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":"2026-05-18T01:03:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E/V3KK9liknSFdncbBoOO2yrX9YgyO20rGygU11ZWEMbsKhiaL0CM74Dp7FTs4DlQxu5RwCX4XTl9bP4q6LHDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:06:37.832033Z"},"content_sha256":"3aa5379d67624a5dbe3ba6dcf263cb89bcacfeb45a4a7c29c21a2eda34bb8daa","schema_version":"1.0","event_id":"sha256:3aa5379d67624a5dbe3ba6dcf263cb89bcacfeb45a4a7c29c21a2eda34bb8daa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:AQ7MGX7ZFML4NHYI5ZA4PZFZ5B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Activation of Quantum Nonlocality","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Andr\\'es F. Ducuara, Javier Madro\\~nero, John H. Reina","submitted_at":"2016-09-26T15:30:54Z","abstract_excerpt":"We report on some quantum properties of physical systems, namely, entanglement, nonlocality, $k$-copy nonlocality (superactivation of nonlocality), hidden nonlocality (activation of nonlocality through local filtering) and the activation of nonlocality through tensoring and local filtering. The aim of this work is two-fold. First, we provide a review of the numerical procedures that must be followed in order to calculate the aforementioned properties, in particular, for any two-qubit system, and reproduce the bounds for two-qudit Werner states. Second, we use such numerical tools to calculate "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.08025","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":""},"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":"2026-05-18T01:03:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uhCQ08sPNtuuXmbaCbi3Jq0qLCKAk7qwB51vXsd4GnzOs89u+k/goSZWRUhHaJvDj4EcCV8IHibm+nJZKUXSDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:06:37.832799Z"},"content_sha256":"a83ebb249fd9624cdba760a3e45dd59dc125c92f55ab87a92cf73dc2312538e9","schema_version":"1.0","event_id":"sha256:a83ebb249fd9624cdba760a3e45dd59dc125c92f55ab87a92cf73dc2312538e9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AQ7MGX7ZFML4NHYI5ZA4PZFZ5B/bundle.json","state_url":"https://pith.science/pith/AQ7MGX7ZFML4NHYI5ZA4PZFZ5B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AQ7MGX7ZFML4NHYI5ZA4PZFZ5B/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":"2026-05-31T23:06:37Z","links":{"resolver":"https://pith.science/pith/AQ7MGX7ZFML4NHYI5ZA4PZFZ5B","bundle":"https://pith.science/pith/AQ7MGX7ZFML4NHYI5ZA4PZFZ5B/bundle.json","state":"https://pith.science/pith/AQ7MGX7ZFML4NHYI5ZA4PZFZ5B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AQ7MGX7ZFML4NHYI5ZA4PZFZ5B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:AQ7MGX7ZFML4NHYI5ZA4PZFZ5B","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":"70a85448727698bcbf580258e87a0d5f97f06fd8bdff1900be1ca815e1c2a983","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-09-26T15:30:54Z","title_canon_sha256":"d472bbff978c34542a515fb1934d1d710391018b6c974e1af4adaa25178c3ef1"},"schema_version":"1.0","source":{"id":"1609.08025","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.08025","created_at":"2026-05-18T01:03:54Z"},{"alias_kind":"arxiv_version","alias_value":"1609.08025v1","created_at":"2026-05-18T01:03:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.08025","created_at":"2026-05-18T01:03:54Z"},{"alias_kind":"pith_short_12","alias_value":"AQ7MGX7ZFML4","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"AQ7MGX7ZFML4NHYI","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"AQ7MGX7Z","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:a83ebb249fd9624cdba760a3e45dd59dc125c92f55ab87a92cf73dc2312538e9","target":"graph","created_at":"2026-05-18T01:03:54Z","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 report on some quantum properties of physical systems, namely, entanglement, nonlocality, $k$-copy nonlocality (superactivation of nonlocality), hidden nonlocality (activation of nonlocality through local filtering) and the activation of nonlocality through tensoring and local filtering. The aim of this work is two-fold. First, we provide a review of the numerical procedures that must be followed in order to calculate the aforementioned properties, in particular, for any two-qubit system, and reproduce the bounds for two-qudit Werner states. Second, we use such numerical tools to calculate ","authors_text":"Andr\\'es F. Ducuara, Javier Madro\\~nero, John H. Reina","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-09-26T15:30:54Z","title":"On the Activation of Quantum Nonlocality"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.08025","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":"sha256:3aa5379d67624a5dbe3ba6dcf263cb89bcacfeb45a4a7c29c21a2eda34bb8daa","target":"record","created_at":"2026-05-18T01:03:54Z","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":"70a85448727698bcbf580258e87a0d5f97f06fd8bdff1900be1ca815e1c2a983","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-09-26T15:30:54Z","title_canon_sha256":"d472bbff978c34542a515fb1934d1d710391018b6c974e1af4adaa25178c3ef1"},"schema_version":"1.0","source":{"id":"1609.08025","kind":"arxiv","version":1}},"canonical_sha256":"043ec35ff92b17c69f08ee41c7e4b9e844e8192f9776d6b5f199a6b255d88540","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"043ec35ff92b17c69f08ee41c7e4b9e844e8192f9776d6b5f199a6b255d88540","first_computed_at":"2026-05-18T01:03:54.644075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:54.644075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sT0Vufn8SgZeQj5l1zisKKDIvVwjaOEeonJCRtX9xqFMFYxqq7XQT2iVRWSPgegTNG7I/aCphtXEaaDygvsPBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:54.644622Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.08025","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3aa5379d67624a5dbe3ba6dcf263cb89bcacfeb45a4a7c29c21a2eda34bb8daa","sha256:a83ebb249fd9624cdba760a3e45dd59dc125c92f55ab87a92cf73dc2312538e9"],"state_sha256":"cdba5faf879b7e0853e12f69acde5f70af309202157e5128ad4926ce42c873e5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3yYoa2xL8P5RgxiSbYhG8trSGoVkWKKno+yqokC2t9fs7oFJEcR0dQPe/JFw67kBBupyoY0SKb7SixSDKALVBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:06:37.836770Z","bundle_sha256":"545d4785d605cfe508536080790f820b25abf6e9fddd1d3cc97499d375e6492f"}}