{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:SRGN37VCDP67X3RVVMVXGOXG7F","short_pith_number":"pith:SRGN37VC","schema_version":"1.0","canonical_sha256":"944cddfea21bfdfbee35ab2b733ae6f9742483d71fd15ce8373e34e1721e1244","source":{"kind":"arxiv","id":"2503.06031","version":1},"attestation_state":"computed","paper":{"title":"Blockwise Post-processing in Satellite-based Quantum Key Distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alexander Russell, Bing Wang, Don Towsley, Md Zakir Hossain, Minu J. Bae, Nitish K. Panigrahy, Prajit Dhara, Walter O. Krawec","submitted_at":"2025-03-08T03:06:04Z","abstract_excerpt":"Free-space satellite communication has significantly lower photon loss than terrestrial communication via optical fibers. Satellite-based quantum key distribution (QKD) leverages this advantage and provides a promising direction in achieving long-distance QKD. While the technological feasibility of satellite-based QKD has been demonstrated experimentally, optimizing the key rate remains a significant challenge. In this paper, we argue that improving classical post-processing is an important direction in increasing key rate in satellite-based QKD, while it can also be easily incorporated in exi"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2503.06031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-03-08T03:06:04Z","cross_cats_sorted":[],"title_canon_sha256":"2997464b2671f48fd6ed6f53827420c8f1dfef5581e424628998780ee4543988","abstract_canon_sha256":"b4b044a664548801976b21867d77723ec5c4730635aacd8e9d4499d246bc129d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:26:52.256571Z","signature_b64":"g7nRHSHEdIKFKp15AmL/Fy+l16gPMNnueySTXkR6sqj7TmZu2eaFrFgjSdtrOtYdocO/ryM3pjCFdTtph61kCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"944cddfea21bfdfbee35ab2b733ae6f9742483d71fd15ce8373e34e1721e1244","last_reissued_at":"2026-07-05T10:26:52.255777Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:26:52.255777Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Blockwise Post-processing in Satellite-based Quantum Key Distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alexander Russell, Bing Wang, Don Towsley, Md Zakir Hossain, Minu J. Bae, Nitish K. Panigrahy, Prajit Dhara, Walter O. Krawec","submitted_at":"2025-03-08T03:06:04Z","abstract_excerpt":"Free-space satellite communication has significantly lower photon loss than terrestrial communication via optical fibers. Satellite-based quantum key distribution (QKD) leverages this advantage and provides a promising direction in achieving long-distance QKD. While the technological feasibility of satellite-based QKD has been demonstrated experimentally, optimizing the key rate remains a significant challenge. In this paper, we argue that improving classical post-processing is an important direction in increasing key rate in satellite-based QKD, while it can also be easily incorporated in exi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.06031","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2503.06031/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2503.06031","created_at":"2026-07-05T10:26:52.255867+00:00"},{"alias_kind":"arxiv_version","alias_value":"2503.06031v1","created_at":"2026-07-05T10:26:52.255867+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.06031","created_at":"2026-07-05T10:26:52.255867+00:00"},{"alias_kind":"pith_short_12","alias_value":"SRGN37VCDP67","created_at":"2026-07-05T10:26:52.255867+00:00"},{"alias_kind":"pith_short_16","alias_value":"SRGN37VCDP67X3RV","created_at":"2026-07-05T10:26:52.255867+00:00"},{"alias_kind":"pith_short_8","alias_value":"SRGN37VC","created_at":"2026-07-05T10:26:52.255867+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F","json":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F.json","graph_json":"https://pith.science/api/pith-number/SRGN37VCDP67X3RVVMVXGOXG7F/graph.json","events_json":"https://pith.science/api/pith-number/SRGN37VCDP67X3RVVMVXGOXG7F/events.json","paper":"https://pith.science/paper/SRGN37VC"},"agent_actions":{"view_html":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F","download_json":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F.json","view_paper":"https://pith.science/paper/SRGN37VC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2503.06031&json=true","fetch_graph":"https://pith.science/api/pith-number/SRGN37VCDP67X3RVVMVXGOXG7F/graph.json","fetch_events":"https://pith.science/api/pith-number/SRGN37VCDP67X3RVVMVXGOXG7F/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F/action/storage_attestation","attest_author":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F/action/author_attestation","sign_citation":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F/action/citation_signature","submit_replication":"https://pith.science/pith/SRGN37VCDP67X3RVVMVXGOXG7F/action/replication_record"}},"created_at":"2026-07-05T10:26:52.255867+00:00","updated_at":"2026-07-05T10:26:52.255867+00:00"}