{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:SIF43RQ2P4BL7B6QNXBP6MMFV7","short_pith_number":"pith:SIF43RQ2","canonical_record":{"source":{"id":"2110.15806","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-10-29T14:13:57Z","cross_cats_sorted":[],"title_canon_sha256":"50485c89d30a2b2720c0681d7ee9a31e95b715ff9edb2f31de8d316631cd8340","abstract_canon_sha256":"06946f81cf3ef0a95fa3ce96c9c8dd94fcc240b16d8cb6a97539b5fb19f79451"},"schema_version":"1.0"},"canonical_sha256":"920bcdc61a7f02bf87d06dc2ff3185afe40e13890397cf3beb9d9a829abd9bfa","source":{"kind":"arxiv","id":"2110.15806","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.15806","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"arxiv_version","alias_value":"2110.15806v2","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.15806","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"pith_short_12","alias_value":"SIF43RQ2P4BL","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"pith_short_16","alias_value":"SIF43RQ2P4BL7B6Q","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"pith_short_8","alias_value":"SIF43RQ2","created_at":"2026-07-05T04:46:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:SIF43RQ2P4BL7B6QNXBP6MMFV7","target":"record","payload":{"canonical_record":{"source":{"id":"2110.15806","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-10-29T14:13:57Z","cross_cats_sorted":[],"title_canon_sha256":"50485c89d30a2b2720c0681d7ee9a31e95b715ff9edb2f31de8d316631cd8340","abstract_canon_sha256":"06946f81cf3ef0a95fa3ce96c9c8dd94fcc240b16d8cb6a97539b5fb19f79451"},"schema_version":"1.0"},"canonical_sha256":"920bcdc61a7f02bf87d06dc2ff3185afe40e13890397cf3beb9d9a829abd9bfa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:46:52.290532Z","signature_b64":"/+g3pGmaLkO2n/wQ3OdAyd7MgjFaLD5XEvu7jOHw5YIIhOddR1rj/qjp39U8SiTLDrgG0uqeJxinRVQbjRwyAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"920bcdc61a7f02bf87d06dc2ff3185afe40e13890397cf3beb9d9a829abd9bfa","last_reissued_at":"2026-07-05T04:46:52.290082Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:46:52.290082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2110.15806","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":"2026-07-05T04:46:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A0YDHwI+x9zYm4qhbDpcHUS4o8/2xhPNJVjkY8t+TqndUHKMOt9TM8yXwM31A0OA5E9jqCBAkjQEEeRvSeUvBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:30:13.934488Z"},"content_sha256":"636bf061d1f0c86a697c5c8ef1066beb9611275bac0080a5648b70a29edca3d7","schema_version":"1.0","event_id":"sha256:636bf061d1f0c86a697c5c8ef1066beb9611275bac0080a5648b70a29edca3d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:SIF43RQ2P4BL7B6QNXBP6MMFV7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simulating quantum repeater strategies for multiple satellites","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Fabian Wiesner, Frederik Hahn, Janik Wolters, Jasminder S. Sidhu, Jens Eisert, Julius Walln\\\"ofer, Mustafa G\\\"undo\\u{g}an, Nathan Walk","submitted_at":"2021-10-29T14:13:57Z","abstract_excerpt":"A global quantum repeater network involving satellite-based links is likely to have advantages over fiber-based networks in terms of long-distance communication, since the photon losses in free space scale only polynomially with the distance -- compared to the exponential losses in optical fibers. To simulate the performance of such networks, we have introduced a scheme of large-scale event-based Monte Carlo simulation of quantum repeaters with multiple memories that can faithfully represent loss and imperfections in these memories. In this work, we identify the quantum key distribution rates "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.15806","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/2110.15806/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":"2026-07-05T04:46:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UxZSvNXdkUITpkZooh7bdXjcJDIjrkHpfFNd4f311G0xGscjSET/El0tePe6+TeJuS7wR+NdWDVOodgno22vBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T15:30:13.935044Z"},"content_sha256":"33e29b333b7034114d499f39cc900076ea777262c92526509762b5a5717172a3","schema_version":"1.0","event_id":"sha256:33e29b333b7034114d499f39cc900076ea777262c92526509762b5a5717172a3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SIF43RQ2P4BL7B6QNXBP6MMFV7/bundle.json","state_url":"https://pith.science/pith/SIF43RQ2P4BL7B6QNXBP6MMFV7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SIF43RQ2P4BL7B6QNXBP6MMFV7/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":"2026-08-06T15:30:13Z","links":{"resolver":"https://pith.science/pith/SIF43RQ2P4BL7B6QNXBP6MMFV7","bundle":"https://pith.science/pith/SIF43RQ2P4BL7B6QNXBP6MMFV7/bundle.json","state":"https://pith.science/pith/SIF43RQ2P4BL7B6QNXBP6MMFV7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SIF43RQ2P4BL7B6QNXBP6MMFV7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:SIF43RQ2P4BL7B6QNXBP6MMFV7","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":"06946f81cf3ef0a95fa3ce96c9c8dd94fcc240b16d8cb6a97539b5fb19f79451","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-10-29T14:13:57Z","title_canon_sha256":"50485c89d30a2b2720c0681d7ee9a31e95b715ff9edb2f31de8d316631cd8340"},"schema_version":"1.0","source":{"id":"2110.15806","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.15806","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"arxiv_version","alias_value":"2110.15806v2","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.15806","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"pith_short_12","alias_value":"SIF43RQ2P4BL","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"pith_short_16","alias_value":"SIF43RQ2P4BL7B6Q","created_at":"2026-07-05T04:46:52Z"},{"alias_kind":"pith_short_8","alias_value":"SIF43RQ2","created_at":"2026-07-05T04:46:52Z"}],"graph_snapshots":[{"event_id":"sha256:33e29b333b7034114d499f39cc900076ea777262c92526509762b5a5717172a3","target":"graph","created_at":"2026-07-05T04:46:52Z","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/2110.15806/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A global quantum repeater network involving satellite-based links is likely to have advantages over fiber-based networks in terms of long-distance communication, since the photon losses in free space scale only polynomially with the distance -- compared to the exponential losses in optical fibers. To simulate the performance of such networks, we have introduced a scheme of large-scale event-based Monte Carlo simulation of quantum repeaters with multiple memories that can faithfully represent loss and imperfections in these memories. In this work, we identify the quantum key distribution rates ","authors_text":"Fabian Wiesner, Frederik Hahn, Janik Wolters, Jasminder S. Sidhu, Jens Eisert, Julius Walln\\\"ofer, Mustafa G\\\"undo\\u{g}an, Nathan Walk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-10-29T14:13:57Z","title":"Simulating quantum repeater strategies for multiple satellites"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.15806","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":"sha256:636bf061d1f0c86a697c5c8ef1066beb9611275bac0080a5648b70a29edca3d7","target":"record","created_at":"2026-07-05T04:46:52Z","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":"06946f81cf3ef0a95fa3ce96c9c8dd94fcc240b16d8cb6a97539b5fb19f79451","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-10-29T14:13:57Z","title_canon_sha256":"50485c89d30a2b2720c0681d7ee9a31e95b715ff9edb2f31de8d316631cd8340"},"schema_version":"1.0","source":{"id":"2110.15806","kind":"arxiv","version":2}},"canonical_sha256":"920bcdc61a7f02bf87d06dc2ff3185afe40e13890397cf3beb9d9a829abd9bfa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"920bcdc61a7f02bf87d06dc2ff3185afe40e13890397cf3beb9d9a829abd9bfa","first_computed_at":"2026-07-05T04:46:52.290082Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:46:52.290082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/+g3pGmaLkO2n/wQ3OdAyd7MgjFaLD5XEvu7jOHw5YIIhOddR1rj/qjp39U8SiTLDrgG0uqeJxinRVQbjRwyAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:46:52.290532Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.15806","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:636bf061d1f0c86a697c5c8ef1066beb9611275bac0080a5648b70a29edca3d7","sha256:33e29b333b7034114d499f39cc900076ea777262c92526509762b5a5717172a3"],"state_sha256":"e5a1a9b7ac7ea1eff2e868f4fcfbd6fe06f7e767c5376c54617b2022edd445b2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fhx1WVyxoJ52tXJHwiNiHslFPMLo8P3u6JYzMtPIpB6gVEvmytpQjrUONdkhCdzF2ThD7i2Ud834DNXUDY4bAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T15:30:13.943821Z","bundle_sha256":"eabfc90a6f5bf665bdc033cd1283ae07a73e138d7cd0de423eed382a975f0e8b"}}