{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:3QBSNA2PHVORI7GVQD34CHMUHM","short_pith_number":"pith:3QBSNA2P","canonical_record":{"source":{"id":"2408.17412","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-08-30T16:59:17Z","cross_cats_sorted":[],"title_canon_sha256":"6bcd57c1f89d6122eed9ac060c196a823e2c8560535c47a57e49887da247e4ef","abstract_canon_sha256":"94fb6e3511deae1d2142b91b358f317ad8d8759af909fe5ac1470861bbf2a53e"},"schema_version":"1.0"},"canonical_sha256":"dc0326834f3d5d147cd580f7c11d943b307fa44a7936ad92c307304593586888","source":{"kind":"arxiv","id":"2408.17412","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.17412","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"arxiv_version","alias_value":"2408.17412v2","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.17412","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"pith_short_12","alias_value":"3QBSNA2PHVOR","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"pith_short_16","alias_value":"3QBSNA2PHVORI7GV","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"pith_short_8","alias_value":"3QBSNA2P","created_at":"2026-07-05T11:36:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:3QBSNA2PHVORI7GVQD34CHMUHM","target":"record","payload":{"canonical_record":{"source":{"id":"2408.17412","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-08-30T16:59:17Z","cross_cats_sorted":[],"title_canon_sha256":"6bcd57c1f89d6122eed9ac060c196a823e2c8560535c47a57e49887da247e4ef","abstract_canon_sha256":"94fb6e3511deae1d2142b91b358f317ad8d8759af909fe5ac1470861bbf2a53e"},"schema_version":"1.0"},"canonical_sha256":"dc0326834f3d5d147cd580f7c11d943b307fa44a7936ad92c307304593586888","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:36:54.608174Z","signature_b64":"VtXwc4aThecjGtVipejK8izX3mx8WFdJ29EkfocptYmNs5qHfYQV1cS4JktR99pXk5/w8xFAvHbtIjSZfxfpBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc0326834f3d5d147cd580f7c11d943b307fa44a7936ad92c307304593586888","last_reissued_at":"2026-07-05T11:36:54.607563Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:36:54.607563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2408.17412","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":"2026-07-05T11:36:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3jHqzISNFIYNrbp9nlTT0AnDEpJg/GudNcQRWn4URgAgxxa8SrgKEc3ybYGwqYfvqN+ugPKtKBOiE1oO1VSKBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T07:15:57.256422Z"},"content_sha256":"5a797a9baaeb0daed9dbbf8ccf68e09d7d57e2234a16cc439160e3b136519b17","schema_version":"1.0","event_id":"sha256:5a797a9baaeb0daed9dbbf8ccf68e09d7d57e2234a16cc439160e3b136519b17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:3QBSNA2PHVORI7GVQD34CHMUHM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hybrid encoder for discrete and continuous variable QKD","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Giuseppe Vallone, Marco Avesani, Mattia Sabatini, Paolo Villoresi, Tommaso Bertapelle","submitted_at":"2024-08-30T16:59:17Z","abstract_excerpt":"Quantum key distribution (QKD) is emerging as a cutting-edge application of quantum technology, gradually integrating into the industrial landscape. Many protocols employing discrete or continuous variables have been developed over time. Whereas the firsts usually excel in covering longer distances, the seconds are typically superior in producing higher secret key rates at short distances. Present efforts aim to create systems that can exploit both these strengths, foreseeing the future challenge regarding the realization of a quantum network consisting of multiple and heterogeneous interconne"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.17412","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2408.17412/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:36:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4hHyy87qJQc7B6iJscGGarBM0/GcZCEAQzIQmNJUIdwpZ/izW8A+lTm6LDFImNnZFZK8ZlZGbXtCgjvyKiwpCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T07:15:57.256800Z"},"content_sha256":"ca74885455459183b20fbb9074d0779e42912de36fc8dd24ca071c1b10df0e87","schema_version":"1.0","event_id":"sha256:ca74885455459183b20fbb9074d0779e42912de36fc8dd24ca071c1b10df0e87"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3QBSNA2PHVORI7GVQD34CHMUHM/bundle.json","state_url":"https://pith.science/pith/3QBSNA2PHVORI7GVQD34CHMUHM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3QBSNA2PHVORI7GVQD34CHMUHM/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":"2026-07-17T07:15:57Z","links":{"resolver":"https://pith.science/pith/3QBSNA2PHVORI7GVQD34CHMUHM","bundle":"https://pith.science/pith/3QBSNA2PHVORI7GVQD34CHMUHM/bundle.json","state":"https://pith.science/pith/3QBSNA2PHVORI7GVQD34CHMUHM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3QBSNA2PHVORI7GVQD34CHMUHM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:3QBSNA2PHVORI7GVQD34CHMUHM","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":"94fb6e3511deae1d2142b91b358f317ad8d8759af909fe5ac1470861bbf2a53e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-08-30T16:59:17Z","title_canon_sha256":"6bcd57c1f89d6122eed9ac060c196a823e2c8560535c47a57e49887da247e4ef"},"schema_version":"1.0","source":{"id":"2408.17412","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2408.17412","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"arxiv_version","alias_value":"2408.17412v2","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2408.17412","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"pith_short_12","alias_value":"3QBSNA2PHVOR","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"pith_short_16","alias_value":"3QBSNA2PHVORI7GV","created_at":"2026-07-05T11:36:54Z"},{"alias_kind":"pith_short_8","alias_value":"3QBSNA2P","created_at":"2026-07-05T11:36:54Z"}],"graph_snapshots":[{"event_id":"sha256:ca74885455459183b20fbb9074d0779e42912de36fc8dd24ca071c1b10df0e87","target":"graph","created_at":"2026-07-05T11:36:54Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2408.17412/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum key distribution (QKD) is emerging as a cutting-edge application of quantum technology, gradually integrating into the industrial landscape. Many protocols employing discrete or continuous variables have been developed over time. Whereas the firsts usually excel in covering longer distances, the seconds are typically superior in producing higher secret key rates at short distances. Present efforts aim to create systems that can exploit both these strengths, foreseeing the future challenge regarding the realization of a quantum network consisting of multiple and heterogeneous interconne","authors_text":"Giuseppe Vallone, Marco Avesani, Mattia Sabatini, Paolo Villoresi, Tommaso Bertapelle","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-08-30T16:59:17Z","title":"Hybrid encoder for discrete and continuous variable QKD"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2408.17412","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":"sha256:5a797a9baaeb0daed9dbbf8ccf68e09d7d57e2234a16cc439160e3b136519b17","target":"record","created_at":"2026-07-05T11:36:54Z","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":"94fb6e3511deae1d2142b91b358f317ad8d8759af909fe5ac1470861bbf2a53e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-08-30T16:59:17Z","title_canon_sha256":"6bcd57c1f89d6122eed9ac060c196a823e2c8560535c47a57e49887da247e4ef"},"schema_version":"1.0","source":{"id":"2408.17412","kind":"arxiv","version":2}},"canonical_sha256":"dc0326834f3d5d147cd580f7c11d943b307fa44a7936ad92c307304593586888","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc0326834f3d5d147cd580f7c11d943b307fa44a7936ad92c307304593586888","first_computed_at":"2026-07-05T11:36:54.607563Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:36:54.607563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VtXwc4aThecjGtVipejK8izX3mx8WFdJ29EkfocptYmNs5qHfYQV1cS4JktR99pXk5/w8xFAvHbtIjSZfxfpBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:36:54.608174Z","signed_message":"canonical_sha256_bytes"},"source_id":"2408.17412","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a797a9baaeb0daed9dbbf8ccf68e09d7d57e2234a16cc439160e3b136519b17","sha256:ca74885455459183b20fbb9074d0779e42912de36fc8dd24ca071c1b10df0e87"],"state_sha256":"fb6c18139e295dac91c19e63db51a4aa9b54e5b382d7e5a6c7bf47c5235f7af2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PtKtOWwLe4GsEYq5u7OwlbWR8S9lnE0ZckesC84BiefCqKjXru02OIsWVRa11QEN0ca837t83WfDrZi+ocEsCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-17T07:15:57.259408Z","bundle_sha256":"3a58cfce62f31d1e3282c4aed01d8c54bf038f62e2559df8364c48bb8010a307"}}