{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:RL45RAKFRH4YGPVJF67I32K6FC","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":"e315491c58d3bec374ec6eb6ae60129a4a9dc1dfccc41e592199689cdb458221","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-21T19:05:25Z","title_canon_sha256":"d6744bf3d61f5382b5316dc2b1f17055a6fbd8e94dd92e560c6ab2f013d7bae3"},"schema_version":"1.0","source":{"id":"0907.3704","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.3704","created_at":"2026-05-18T04:23:21Z"},{"alias_kind":"arxiv_version","alias_value":"0907.3704v1","created_at":"2026-05-18T04:23:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.3704","created_at":"2026-05-18T04:23:21Z"},{"alias_kind":"pith_short_12","alias_value":"RL45RAKFRH4Y","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"RL45RAKFRH4YGPVJ","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"RL45RAKF","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:8062ed8e6f854edef941eb23acc7d4d665e28bd3b18042aa65d26d3dd6e8ab7b","target":"graph","created_at":"2026-05-18T04:23:21Z","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":"Uncertainty relations play a central role in quantum mechanics. Entropic uncertainty relations in particular have gained significant importance within quantum information, providing the foundation for the security of many quantum cryptographic protocols. Yet, rather little is known about entropic uncertainty relations with more than two measurement settings. In this note we review known results and open questions.","authors_text":"Andreas Winter, Stephanie Wehner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-21T19:05:25Z","title":"Entropic uncertainty relations - A survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.3704","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":"sha256:31de67052fb7f8827d2101353588c58586c26eafcf1ad82b3f7613e0f790bbbb","target":"record","created_at":"2026-05-18T04:23:21Z","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":"e315491c58d3bec374ec6eb6ae60129a4a9dc1dfccc41e592199689cdb458221","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2009-07-21T19:05:25Z","title_canon_sha256":"d6744bf3d61f5382b5316dc2b1f17055a6fbd8e94dd92e560c6ab2f013d7bae3"},"schema_version":"1.0","source":{"id":"0907.3704","kind":"arxiv","version":1}},"canonical_sha256":"8af9d8814589f9833ea92fbe8de95e289a99c3bf99f53fb2321360b16b2641c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8af9d8814589f9833ea92fbe8de95e289a99c3bf99f53fb2321360b16b2641c0","first_computed_at":"2026-05-18T04:23:21.297642Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:23:21.297642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XT3dmY2ZFO8FqEqwhF4wQHLHit7KxWmU8O5bOVdFJMqqWms4m8GTJ29g5DKwjyl90esna3POiwRq2BmB1P60Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:23:21.298127Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.3704","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31de67052fb7f8827d2101353588c58586c26eafcf1ad82b3f7613e0f790bbbb","sha256:8062ed8e6f854edef941eb23acc7d4d665e28bd3b18042aa65d26d3dd6e8ab7b"],"state_sha256":"80ee1b07d45835757832d88e93a5bf6ac0342e3ad875f162d28c04f0b277740f"}