{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ULWJGGI3FEYY35NGCU6OBMQKA3","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":"a1448a4461391689d524c2ea5f75400ee5d497b469ce42daf53ba376f2180d5a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-18T10:29:53Z","title_canon_sha256":"403a50939f80a1392037362426f44d88fe17d74d50256b8e14e75ce45528422e"},"schema_version":"1.0","source":{"id":"1201.3744","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.3744","created_at":"2026-05-18T01:58:47Z"},{"alias_kind":"arxiv_version","alias_value":"1201.3744v2","created_at":"2026-05-18T01:58:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.3744","created_at":"2026-05-18T01:58:47Z"},{"alias_kind":"pith_short_12","alias_value":"ULWJGGI3FEYY","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"ULWJGGI3FEYY35NG","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"ULWJGGI3","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:8fb5c038560f3402aceda7673560c7a4651afa45107cf4bf5b6d36fb234d1de5","target":"graph","created_at":"2026-05-18T01:58:47Z","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 the design and performance of a point-to-point classical symmetric encryption link with fast key renewal provided by a Continuous Variable Quantum Key Distribution (CVQKD) system. Our system was operational and able to encrypt point-to-point communications during more than six months, from the end of July 2010 until the beginning of February 2011. This field test was the first demonstration of the reliability of a CVQKD system over a long period of time in a server room environment. This strengthens the potential of CVQKD for information technology security infrastructure deployme","authors_text":"Anthony Leverrier, Eleni Diamanti, Paul Jouguet, Philippe Grangier, Philippe Pache, Philippe Painchault, Romain All\\'eaume, Rosa Tualle-Brouri, S\\'ebastien Kunz-Jacques, Simon Fossier, Thierry Debuisschert","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-18T10:29:53Z","title":"Field Test of Classical Symmetric Encryption with Continuous Variable Quantum Key Distribution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.3744","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":"sha256:47edd75af99d7ad49b90c7660c4b7eb66d10d88cab8d7069782d01a9623fe258","target":"record","created_at":"2026-05-18T01:58:47Z","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":"a1448a4461391689d524c2ea5f75400ee5d497b469ce42daf53ba376f2180d5a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-18T10:29:53Z","title_canon_sha256":"403a50939f80a1392037362426f44d88fe17d74d50256b8e14e75ce45528422e"},"schema_version":"1.0","source":{"id":"1201.3744","kind":"arxiv","version":2}},"canonical_sha256":"a2ec93191b29318df5a6153ce0b20a06c27743ac2bafc8a0ec5c52433edce914","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a2ec93191b29318df5a6153ce0b20a06c27743ac2bafc8a0ec5c52433edce914","first_computed_at":"2026-05-18T01:58:47.502242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:47.502242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ttTf9OtneQfmlVpUND/J5ffVNtWfjdvf3KFzSF+Y7o6f1F6uxm72JuvF5rj2fnIfKXOixrBMMtx0VqFU2t6BBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:47.503175Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.3744","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:47edd75af99d7ad49b90c7660c4b7eb66d10d88cab8d7069782d01a9623fe258","sha256:8fb5c038560f3402aceda7673560c7a4651afa45107cf4bf5b6d36fb234d1de5"],"state_sha256":"8afe01cf20a386c233374634d92d7bbcbeac3c0df7416aeb3102c0ed553146b1"}