{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:W47VYWKN2L4665KEM24HZWSZGS","short_pith_number":"pith:W47VYWKN","canonical_record":{"source":{"id":"2508.13008","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-18T15:28:22Z","cross_cats_sorted":[],"title_canon_sha256":"63a203e1fe2ff7b8473954c2427712adb3fd77562b0604d1b1d6b9db3f0341c5","abstract_canon_sha256":"b6c25ea43715c95991577126abeb0887e1c6d56f11441dbb95389b34e5912745"},"schema_version":"1.0"},"canonical_sha256":"b73f5c594dd2f9ef754466b87cda5934a068ba42b07170cbde4a89cc772d6f45","source":{"kind":"arxiv","id":"2508.13008","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.13008","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"arxiv_version","alias_value":"2508.13008v1","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.13008","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"pith_short_12","alias_value":"W47VYWKN2L46","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"pith_short_16","alias_value":"W47VYWKN2L4665KE","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"pith_short_8","alias_value":"W47VYWKN","created_at":"2026-07-05T11:55:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:W47VYWKN2L4665KEM24HZWSZGS","target":"record","payload":{"canonical_record":{"source":{"id":"2508.13008","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-18T15:28:22Z","cross_cats_sorted":[],"title_canon_sha256":"63a203e1fe2ff7b8473954c2427712adb3fd77562b0604d1b1d6b9db3f0341c5","abstract_canon_sha256":"b6c25ea43715c95991577126abeb0887e1c6d56f11441dbb95389b34e5912745"},"schema_version":"1.0"},"canonical_sha256":"b73f5c594dd2f9ef754466b87cda5934a068ba42b07170cbde4a89cc772d6f45","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:55:30.776599Z","signature_b64":"pmLqKqNqHPuDIVjWgQyqJTYhhLLNooQ2qNapY7+xtMFeBJB3aSLbEhGnwjxcSinRiu1i8BI2RF55arIBNTR1Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b73f5c594dd2f9ef754466b87cda5934a068ba42b07170cbde4a89cc772d6f45","last_reissued_at":"2026-07-05T11:55:30.776054Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:55:30.776054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.13008","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":"2026-07-05T11:55:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cwx93q/kTHU8Ffqzc/K++6qIfA8hF3mcQ0X58GjJUhTo+GsgeFXoW4iyIFTybkRzrNipmmBZGpEWUHPI67IODg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T17:58:15.696454Z"},"content_sha256":"b392427a44c402179cdbba8acdfbad4914f8ff04b5b4b33eb29c51d6c35c703f","schema_version":"1.0","event_id":"sha256:b392427a44c402179cdbba8acdfbad4914f8ff04b5b4b33eb29c51d6c35c703f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:W47VYWKN2L4665KEM24HZWSZGS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Free-space time-bin encoded quantum key distribution from near- to mid-infrared wavelengths","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alessandro Zavatta, Claudia De Lazzari, Davide Bacco, Domenico Ribezzo, Francesco Cappelli, Mario Siciliani de Cumis, Natalia Bruno, Nicola Biagi, Nicola Corrias, Paolo De Natale, Simone Borri, Tecla Gabbrielli","submitted_at":"2025-08-18T15:28:22Z","abstract_excerpt":"Quantum technologies play a central role in establishing new ways of quantum-secured communication. We investigate Free-Space Quantum Communication and explore the advantage of implementing Quantum Key Distribution (QKD) with weak coherent states produced by a light source in the Mid-Infrared (>3$\\mu$m). We simulate time-bin encoded quantum key distribution and demonstrate that a free-space QKD link operating in the Mid-infrared outperforms configurations based on conventional near-infrared wavelengths under various weather scenarios, with a particular significance in adverse meteorological co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.13008","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/2508.13008/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":"2026-07-05T11:55:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nwnoC3VGmQeNlx8HtfpLNL2+aVZsaCf2zLlvUOMJCINilf7eIvLvKosLwUIxBJAkXB3njGPf7+jikYWPESl1Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T17:58:15.696826Z"},"content_sha256":"8e9efa9caa31f1a75b101058d4803359932060b7954fcceecd8f986d8b6ef783","schema_version":"1.0","event_id":"sha256:8e9efa9caa31f1a75b101058d4803359932060b7954fcceecd8f986d8b6ef783"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W47VYWKN2L4665KEM24HZWSZGS/bundle.json","state_url":"https://pith.science/pith/W47VYWKN2L4665KEM24HZWSZGS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W47VYWKN2L4665KEM24HZWSZGS/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":"2026-07-06T17:58:15Z","links":{"resolver":"https://pith.science/pith/W47VYWKN2L4665KEM24HZWSZGS","bundle":"https://pith.science/pith/W47VYWKN2L4665KEM24HZWSZGS/bundle.json","state":"https://pith.science/pith/W47VYWKN2L4665KEM24HZWSZGS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W47VYWKN2L4665KEM24HZWSZGS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:W47VYWKN2L4665KEM24HZWSZGS","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":"b6c25ea43715c95991577126abeb0887e1c6d56f11441dbb95389b34e5912745","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-18T15:28:22Z","title_canon_sha256":"63a203e1fe2ff7b8473954c2427712adb3fd77562b0604d1b1d6b9db3f0341c5"},"schema_version":"1.0","source":{"id":"2508.13008","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.13008","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"arxiv_version","alias_value":"2508.13008v1","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.13008","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"pith_short_12","alias_value":"W47VYWKN2L46","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"pith_short_16","alias_value":"W47VYWKN2L4665KE","created_at":"2026-07-05T11:55:30Z"},{"alias_kind":"pith_short_8","alias_value":"W47VYWKN","created_at":"2026-07-05T11:55:30Z"}],"graph_snapshots":[{"event_id":"sha256:8e9efa9caa31f1a75b101058d4803359932060b7954fcceecd8f986d8b6ef783","target":"graph","created_at":"2026-07-05T11:55:30Z","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/2508.13008/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum technologies play a central role in establishing new ways of quantum-secured communication. We investigate Free-Space Quantum Communication and explore the advantage of implementing Quantum Key Distribution (QKD) with weak coherent states produced by a light source in the Mid-Infrared (>3$\\mu$m). We simulate time-bin encoded quantum key distribution and demonstrate that a free-space QKD link operating in the Mid-infrared outperforms configurations based on conventional near-infrared wavelengths under various weather scenarios, with a particular significance in adverse meteorological co","authors_text":"Alessandro Zavatta, Claudia De Lazzari, Davide Bacco, Domenico Ribezzo, Francesco Cappelli, Mario Siciliani de Cumis, Natalia Bruno, Nicola Biagi, Nicola Corrias, Paolo De Natale, Simone Borri, Tecla Gabbrielli","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-18T15:28:22Z","title":"Free-space time-bin encoded quantum key distribution from near- to mid-infrared wavelengths"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.13008","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:b392427a44c402179cdbba8acdfbad4914f8ff04b5b4b33eb29c51d6c35c703f","target":"record","created_at":"2026-07-05T11:55:30Z","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":"b6c25ea43715c95991577126abeb0887e1c6d56f11441dbb95389b34e5912745","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2025-08-18T15:28:22Z","title_canon_sha256":"63a203e1fe2ff7b8473954c2427712adb3fd77562b0604d1b1d6b9db3f0341c5"},"schema_version":"1.0","source":{"id":"2508.13008","kind":"arxiv","version":1}},"canonical_sha256":"b73f5c594dd2f9ef754466b87cda5934a068ba42b07170cbde4a89cc772d6f45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b73f5c594dd2f9ef754466b87cda5934a068ba42b07170cbde4a89cc772d6f45","first_computed_at":"2026-07-05T11:55:30.776054Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:55:30.776054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pmLqKqNqHPuDIVjWgQyqJTYhhLLNooQ2qNapY7+xtMFeBJB3aSLbEhGnwjxcSinRiu1i8BI2RF55arIBNTR1Bw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:55:30.776599Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.13008","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b392427a44c402179cdbba8acdfbad4914f8ff04b5b4b33eb29c51d6c35c703f","sha256:8e9efa9caa31f1a75b101058d4803359932060b7954fcceecd8f986d8b6ef783"],"state_sha256":"794e2445093a92d03e26b4436113a35515c98392fbf79d2327878251fa750e22"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lcEH1bYYDQYcRKVkGKUZ3c6L9Jx+S1htP8S3bKHthJNNe3ltGqCt+Dei4Xu5T+re8mztYtwRMSIcCeNKG1ueBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T17:58:15.698762Z","bundle_sha256":"0376eefb55a64a3187ed441d1210c7ebaa4c05b4dc5bcb3b64969a213a39b3a9"}}