{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:BY6VOZJMVAYJWBMTRCRPOMRG5J","short_pith_number":"pith:BY6VOZJM","canonical_record":{"source":{"id":"1210.6216","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-23T12:10:22Z","cross_cats_sorted":[],"title_canon_sha256":"cb1f64a8331ccaa8f3be6d47dd67bde1eefe7e834aed667654980e0a04887657","abstract_canon_sha256":"c327147db730c3af214c7a23106dbac5306170122b62b5febb31ec3b64176c1c"},"schema_version":"1.0"},"canonical_sha256":"0e3d57652ca8309b059388a2f73226ea76fb71b8d6e4f5161ef2758d2d71dd13","source":{"kind":"arxiv","id":"1210.6216","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.6216","created_at":"2026-05-18T03:02:57Z"},{"alias_kind":"arxiv_version","alias_value":"1210.6216v1","created_at":"2026-05-18T03:02:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.6216","created_at":"2026-05-18T03:02:57Z"},{"alias_kind":"pith_short_12","alias_value":"BY6VOZJMVAYJ","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"BY6VOZJMVAYJWBMT","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"BY6VOZJM","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:BY6VOZJMVAYJWBMTRCRPOMRG5J","target":"record","payload":{"canonical_record":{"source":{"id":"1210.6216","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-23T12:10:22Z","cross_cats_sorted":[],"title_canon_sha256":"cb1f64a8331ccaa8f3be6d47dd67bde1eefe7e834aed667654980e0a04887657","abstract_canon_sha256":"c327147db730c3af214c7a23106dbac5306170122b62b5febb31ec3b64176c1c"},"schema_version":"1.0"},"canonical_sha256":"0e3d57652ca8309b059388a2f73226ea76fb71b8d6e4f5161ef2758d2d71dd13","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:02:57.435988Z","signature_b64":"yBLKdrPFl46gzhQAD4NBrAj1gQ+FdLDy/ko/J2uQ5PnE85pLk4EkA62V4hwWW59wx+i6JBx1NXnswtzVLoBECQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e3d57652ca8309b059388a2f73226ea76fb71b8d6e4f5161ef2758d2d71dd13","last_reissued_at":"2026-05-18T03:02:57.435280Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:02:57.435280Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.6216","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":"2026-05-18T03:02:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"74DZv5tudrZwybOT8QabYuiAoGFZzZtAxxAc7gzLSf4YjAN2kw6Obdw/dfDlGyIbhTpTG4S01ZcjiEqkRpXqAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T04:21:10.427368Z"},"content_sha256":"957162d4cdacd88250660360a5cc5df57d5671c5ce839fb865fae1bb968b7acc","schema_version":"1.0","event_id":"sha256:957162d4cdacd88250660360a5cc5df57d5671c5ce839fb865fae1bb968b7acc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:BY6VOZJMVAYJWBMTRCRPOMRG5J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental demonstration of long-distance continuous-variable quantum key distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Anthony Leverrier, Eleni Diamanti, Paul Jouguet, Philippe Grangier, S\\'ebastien Kunz-Jacques","submitted_at":"2012-10-23T12:10:22Z","abstract_excerpt":"Distributing secret keys with information-theoretic security is arguably one of the most important achievements of the field of quantum information processing and communications. The rapid progress in this field has enabled quantum key distribution (QKD) in real-world conditions and commercial devices are now readily available. QKD systems based on continuous variables present the major advantage that they only require standard telecommunication technology, and in particular, that they do not use photon counters. However, these systems were considered up till now unsuitable for long-distance c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.6216","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":"2026-05-18T03:02:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ett8Kgg00wZOrAvw+CwUayV6NYBol+Zo6Zv21As6P3babvic5DEn1LWlHMu/C5IgQg31xE/4+SukCWYGb+wvBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T04:21:10.427724Z"},"content_sha256":"d24cc3ddb2bc42b3eecda00632c316d91b178806b3e0bc93980725d836d40fe4","schema_version":"1.0","event_id":"sha256:d24cc3ddb2bc42b3eecda00632c316d91b178806b3e0bc93980725d836d40fe4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BY6VOZJMVAYJWBMTRCRPOMRG5J/bundle.json","state_url":"https://pith.science/pith/BY6VOZJMVAYJWBMTRCRPOMRG5J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BY6VOZJMVAYJWBMTRCRPOMRG5J/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":"2026-06-02T04:21:10Z","links":{"resolver":"https://pith.science/pith/BY6VOZJMVAYJWBMTRCRPOMRG5J","bundle":"https://pith.science/pith/BY6VOZJMVAYJWBMTRCRPOMRG5J/bundle.json","state":"https://pith.science/pith/BY6VOZJMVAYJWBMTRCRPOMRG5J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BY6VOZJMVAYJWBMTRCRPOMRG5J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:BY6VOZJMVAYJWBMTRCRPOMRG5J","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":"c327147db730c3af214c7a23106dbac5306170122b62b5febb31ec3b64176c1c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-23T12:10:22Z","title_canon_sha256":"cb1f64a8331ccaa8f3be6d47dd67bde1eefe7e834aed667654980e0a04887657"},"schema_version":"1.0","source":{"id":"1210.6216","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.6216","created_at":"2026-05-18T03:02:57Z"},{"alias_kind":"arxiv_version","alias_value":"1210.6216v1","created_at":"2026-05-18T03:02:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.6216","created_at":"2026-05-18T03:02:57Z"},{"alias_kind":"pith_short_12","alias_value":"BY6VOZJMVAYJ","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"BY6VOZJMVAYJWBMT","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"BY6VOZJM","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:d24cc3ddb2bc42b3eecda00632c316d91b178806b3e0bc93980725d836d40fe4","target":"graph","created_at":"2026-05-18T03:02:57Z","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":"Distributing secret keys with information-theoretic security is arguably one of the most important achievements of the field of quantum information processing and communications. The rapid progress in this field has enabled quantum key distribution (QKD) in real-world conditions and commercial devices are now readily available. QKD systems based on continuous variables present the major advantage that they only require standard telecommunication technology, and in particular, that they do not use photon counters. However, these systems were considered up till now unsuitable for long-distance c","authors_text":"Anthony Leverrier, Eleni Diamanti, Paul Jouguet, Philippe Grangier, S\\'ebastien Kunz-Jacques","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-23T12:10:22Z","title":"Experimental demonstration of long-distance continuous-variable quantum key distribution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.6216","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":"sha256:957162d4cdacd88250660360a5cc5df57d5671c5ce839fb865fae1bb968b7acc","target":"record","created_at":"2026-05-18T03:02:57Z","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":"c327147db730c3af214c7a23106dbac5306170122b62b5febb31ec3b64176c1c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-10-23T12:10:22Z","title_canon_sha256":"cb1f64a8331ccaa8f3be6d47dd67bde1eefe7e834aed667654980e0a04887657"},"schema_version":"1.0","source":{"id":"1210.6216","kind":"arxiv","version":1}},"canonical_sha256":"0e3d57652ca8309b059388a2f73226ea76fb71b8d6e4f5161ef2758d2d71dd13","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e3d57652ca8309b059388a2f73226ea76fb71b8d6e4f5161ef2758d2d71dd13","first_computed_at":"2026-05-18T03:02:57.435280Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:02:57.435280Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yBLKdrPFl46gzhQAD4NBrAj1gQ+FdLDy/ko/J2uQ5PnE85pLk4EkA62V4hwWW59wx+i6JBx1NXnswtzVLoBECQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:02:57.435988Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.6216","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:957162d4cdacd88250660360a5cc5df57d5671c5ce839fb865fae1bb968b7acc","sha256:d24cc3ddb2bc42b3eecda00632c316d91b178806b3e0bc93980725d836d40fe4"],"state_sha256":"eae1041b525604a0af8543a34922746485dcb73260c451308ec03e2134e1e1d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fe0D3DGODYHfxoyAoNfmamhBaXVXI2Z31tjfBYYmIx9iPYCZtrZS9c+sccoI0p8wGV/mlsnkzaGspIAtNpxMAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T04:21:10.429854Z","bundle_sha256":"88651da0dc1d3b7b4dcf6b3c988a8d1247de4fddbfcfcd459519aedd3a3bffdd"}}