{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:XKISTEMOLBFVPF5STNKSVEMZAM","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":"68faf4272758347df97d584dc2a853c792caa1d28cb1da19260eef321ffd8de9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-04-08T16:52:15Z","title_canon_sha256":"58177f4000866825de6dbdc7d168bc691e0cb85bb7bec0289ba9928dccfbe292"},"schema_version":"1.0","source":{"id":"2404.05668","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.05668","created_at":"2026-07-05T08:05:44Z"},{"alias_kind":"arxiv_version","alias_value":"2404.05668v1","created_at":"2026-07-05T08:05:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.05668","created_at":"2026-07-05T08:05:44Z"},{"alias_kind":"pith_short_12","alias_value":"XKISTEMOLBFV","created_at":"2026-07-05T08:05:44Z"},{"alias_kind":"pith_short_16","alias_value":"XKISTEMOLBFVPF5S","created_at":"2026-07-05T08:05:44Z"},{"alias_kind":"pith_short_8","alias_value":"XKISTEMO","created_at":"2026-07-05T08:05:44Z"}],"graph_snapshots":[{"event_id":"sha256:308edab56b8512e7fff044e85ca1213e47009352fd4eb2551664a5d7ea68b679","target":"graph","created_at":"2026-07-05T08:05:44Z","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/2404.05668/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum key distribution (QKD) allows the generation of cryptographic keys beyond the computational hardness paradigm and is befitting for secure data transmission requiring long-term security. The communication distance of fibre-based QKD, however, is limited to a few hundred kilometers due to the exponential scaling of signal attenuation. Satellite QKD (SatQKD) can instead leverage free-space optical links to establish long-range connections and enable global-scale QKD. In this work we review the manifold of design choices that concur to form the set of possible SatQKD architectures. These i","authors_text":"Davide Orsucci, Florian Moll, Innocenzo De Marco, Jaspar Meister, Nino Walenta, Philipp Kleinpa\\ss, Stefanie H\\\"ausler, Thomas Strang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-04-08T16:52:15Z","title":"Assessment of practical satellite quantum key distribution architectures for current and near-future missions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.05668","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:a75686f474fa2d4fa4cbe2de9185c211c7722eb9cb4c6a4f317bd783179b1c50","target":"record","created_at":"2026-07-05T08:05:44Z","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":"68faf4272758347df97d584dc2a853c792caa1d28cb1da19260eef321ffd8de9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-04-08T16:52:15Z","title_canon_sha256":"58177f4000866825de6dbdc7d168bc691e0cb85bb7bec0289ba9928dccfbe292"},"schema_version":"1.0","source":{"id":"2404.05668","kind":"arxiv","version":1}},"canonical_sha256":"ba9129918e584b5797b29b552a9199033b8388392e18f54d9ec0a571e9460061","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba9129918e584b5797b29b552a9199033b8388392e18f54d9ec0a571e9460061","first_computed_at":"2026-07-05T08:05:44.050486Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:05:44.050486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A3Z1282uFIAzIjaErU5kDWAlTc+SEdYmY0v7MBjmCu8BJPJjHCpOFBmnI/KvjN7IU3+rxtOCkJCYROc0qY30AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:05:44.050889Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.05668","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a75686f474fa2d4fa4cbe2de9185c211c7722eb9cb4c6a4f317bd783179b1c50","sha256:308edab56b8512e7fff044e85ca1213e47009352fd4eb2551664a5d7ea68b679"],"state_sha256":"faba574871090c2dd4864ad9392521eb6d55a1c9ccd9d4dbde45d5573d800069"}