{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ZXR4YVTZPAE7XIJOHG6LBDHDAU","short_pith_number":"pith:ZXR4YVTZ","canonical_record":{"source":{"id":"1602.06048","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-02-19T05:43:29Z","cross_cats_sorted":[],"title_canon_sha256":"f0b4ce68ccac3c8fc4f5993e9d981f4f2894027753106255b18d56a0a00f7ec6","abstract_canon_sha256":"05bdfa38c32b39f2de24b4bec42bdb0b25017f8ce882eff7eea33662727e2c7a"},"schema_version":"1.0"},"canonical_sha256":"cde3cc56797809fba12e39bcb08ce3052249a40af70aae1366c1dd15db023411","source":{"kind":"arxiv","id":"1602.06048","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06048","created_at":"2026-05-18T01:07:58Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06048v2","created_at":"2026-05-18T01:07:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06048","created_at":"2026-05-18T01:07:58Z"},{"alias_kind":"pith_short_12","alias_value":"ZXR4YVTZPAE7","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"ZXR4YVTZPAE7XIJO","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"ZXR4YVTZ","created_at":"2026-05-18T12:30:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ZXR4YVTZPAE7XIJOHG6LBDHDAU","target":"record","payload":{"canonical_record":{"source":{"id":"1602.06048","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-02-19T05:43:29Z","cross_cats_sorted":[],"title_canon_sha256":"f0b4ce68ccac3c8fc4f5993e9d981f4f2894027753106255b18d56a0a00f7ec6","abstract_canon_sha256":"05bdfa38c32b39f2de24b4bec42bdb0b25017f8ce882eff7eea33662727e2c7a"},"schema_version":"1.0"},"canonical_sha256":"cde3cc56797809fba12e39bcb08ce3052249a40af70aae1366c1dd15db023411","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:58.283583Z","signature_b64":"HWFxKViNV9owOOEISHsclLaKy4aLTqXiFOnObweqaPOb/wlI3oMk1WNbKBM9ddD0E2basXTcAUxGf/AYqZ2LAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cde3cc56797809fba12e39bcb08ce3052249a40af70aae1366c1dd15db023411","last_reissued_at":"2026-05-18T01:07:58.283238Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:58.283238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.06048","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":"2026-05-18T01:07:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/bqAsYJM32ilYdHkuesS7+6EfBjp9ScCOpdrCSWYa8V5w56tkXcd4MOD6M1rp9nXIPGj7mGpeSdlcXgY+xhkDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:25:43.950227Z"},"content_sha256":"7b02366584fef7ea5b1af23437876e7cefbde6451623735be6dcd9e19d91c773","schema_version":"1.0","event_id":"sha256:7b02366584fef7ea5b1af23437876e7cefbde6451623735be6dcd9e19d91c773"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ZXR4YVTZPAE7XIJOHG6LBDHDAU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-local games and optimal steering at the boundary of the quantum set","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Kai Chen, Koon Tong Goh, Valerio Scarani, Wen-Fei Cao, Xingyao Wu, Yi-Zheng Zhen, Yu-Lin Zheng","submitted_at":"2016-02-19T05:43:29Z","abstract_excerpt":"The boundary between classical and quantum correlations is well characterised by linear constraints called Bell inequalities. It is much harder to characterise the boundary of the quantum set itself in the space of no-signaling correlations. For the points on the quantum boundary that violate maximally some Bell inequalities, Oppenheim and Wehner [Science 330, 1072 (2010)] pointed out a complex property: the optimal measurements of Alice steer Bob's local state to the eigenstate of an effective operator corresponding to its maximal eigenvalue. This effective operator is the linear combination "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06048","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":"2026-05-18T01:07:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4nEqEbOwY7urmKxUupYb2DLVqFZ4rJ6WYyK3G+kQOdXv8kHCN8FTTYqF3rD1OBdp7Ujh/nXkDKCQkbIk6J0/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:25:43.950932Z"},"content_sha256":"3916adb114c64a5fff581f31d3400e9b3c5341307a01fdc356e2e2c720a2e521","schema_version":"1.0","event_id":"sha256:3916adb114c64a5fff581f31d3400e9b3c5341307a01fdc356e2e2c720a2e521"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZXR4YVTZPAE7XIJOHG6LBDHDAU/bundle.json","state_url":"https://pith.science/pith/ZXR4YVTZPAE7XIJOHG6LBDHDAU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZXR4YVTZPAE7XIJOHG6LBDHDAU/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":"2026-06-06T15:25:43Z","links":{"resolver":"https://pith.science/pith/ZXR4YVTZPAE7XIJOHG6LBDHDAU","bundle":"https://pith.science/pith/ZXR4YVTZPAE7XIJOHG6LBDHDAU/bundle.json","state":"https://pith.science/pith/ZXR4YVTZPAE7XIJOHG6LBDHDAU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZXR4YVTZPAE7XIJOHG6LBDHDAU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ZXR4YVTZPAE7XIJOHG6LBDHDAU","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":"05bdfa38c32b39f2de24b4bec42bdb0b25017f8ce882eff7eea33662727e2c7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-02-19T05:43:29Z","title_canon_sha256":"f0b4ce68ccac3c8fc4f5993e9d981f4f2894027753106255b18d56a0a00f7ec6"},"schema_version":"1.0","source":{"id":"1602.06048","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06048","created_at":"2026-05-18T01:07:58Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06048v2","created_at":"2026-05-18T01:07:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06048","created_at":"2026-05-18T01:07:58Z"},{"alias_kind":"pith_short_12","alias_value":"ZXR4YVTZPAE7","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"ZXR4YVTZPAE7XIJO","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"ZXR4YVTZ","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:3916adb114c64a5fff581f31d3400e9b3c5341307a01fdc356e2e2c720a2e521","target":"graph","created_at":"2026-05-18T01:07:58Z","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":"The boundary between classical and quantum correlations is well characterised by linear constraints called Bell inequalities. It is much harder to characterise the boundary of the quantum set itself in the space of no-signaling correlations. For the points on the quantum boundary that violate maximally some Bell inequalities, Oppenheim and Wehner [Science 330, 1072 (2010)] pointed out a complex property: the optimal measurements of Alice steer Bob's local state to the eigenstate of an effective operator corresponding to its maximal eigenvalue. This effective operator is the linear combination ","authors_text":"Kai Chen, Koon Tong Goh, Valerio Scarani, Wen-Fei Cao, Xingyao Wu, Yi-Zheng Zhen, Yu-Lin Zheng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-02-19T05:43:29Z","title":"Non-local games and optimal steering at the boundary of the quantum set"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06048","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":"sha256:7b02366584fef7ea5b1af23437876e7cefbde6451623735be6dcd9e19d91c773","target":"record","created_at":"2026-05-18T01:07:58Z","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":"05bdfa38c32b39f2de24b4bec42bdb0b25017f8ce882eff7eea33662727e2c7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-02-19T05:43:29Z","title_canon_sha256":"f0b4ce68ccac3c8fc4f5993e9d981f4f2894027753106255b18d56a0a00f7ec6"},"schema_version":"1.0","source":{"id":"1602.06048","kind":"arxiv","version":2}},"canonical_sha256":"cde3cc56797809fba12e39bcb08ce3052249a40af70aae1366c1dd15db023411","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cde3cc56797809fba12e39bcb08ce3052249a40af70aae1366c1dd15db023411","first_computed_at":"2026-05-18T01:07:58.283238Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:58.283238Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HWFxKViNV9owOOEISHsclLaKy4aLTqXiFOnObweqaPOb/wlI3oMk1WNbKBM9ddD0E2basXTcAUxGf/AYqZ2LAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:58.283583Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.06048","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b02366584fef7ea5b1af23437876e7cefbde6451623735be6dcd9e19d91c773","sha256:3916adb114c64a5fff581f31d3400e9b3c5341307a01fdc356e2e2c720a2e521"],"state_sha256":"8699f51c5887099b85c3ac3eb6fc2f5c7fc18924d1a0e4060ddca3eaab35d82b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lXdlqCu/N8C6Jf2n385m6AhdAXjcXqyMYJvZ6nYI/ActpgThdGZkeBo9WpeCgoo/th0C1NBi7WBvKquMcD35BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:25:43.954855Z","bundle_sha256":"bda8610d9f661388f142825e66a5763650ba8a79f1a7048db1e3ba2f186bf2e1"}}