{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:66AZ4PI6NNZEB7ZRER7A2QP3VF","short_pith_number":"pith:66AZ4PI6","canonical_record":{"source":{"id":"2607.01989","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-02T10:21:35Z","cross_cats_sorted":[],"title_canon_sha256":"5110a87015ca98c1f4eab589b9bc3db8b67970968c8ccf4211689c234a22adee","abstract_canon_sha256":"e1235e3e1aeb0fe0ec8000e99ed9ff9d70ebd656367beea97a5e67f4699b457d"},"schema_version":"1.0"},"canonical_sha256":"f7819e3d1e6b7240ff31247e0d41fba952a94793dc9a99732f1649923b5a36c3","source":{"kind":"arxiv","id":"2607.01989","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.01989","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"arxiv_version","alias_value":"2607.01989v1","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.01989","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"pith_short_12","alias_value":"66AZ4PI6NNZE","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"pith_short_16","alias_value":"66AZ4PI6NNZEB7ZR","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"pith_short_8","alias_value":"66AZ4PI6","created_at":"2026-07-03T01:17:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:66AZ4PI6NNZEB7ZRER7A2QP3VF","target":"record","payload":{"canonical_record":{"source":{"id":"2607.01989","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-02T10:21:35Z","cross_cats_sorted":[],"title_canon_sha256":"5110a87015ca98c1f4eab589b9bc3db8b67970968c8ccf4211689c234a22adee","abstract_canon_sha256":"e1235e3e1aeb0fe0ec8000e99ed9ff9d70ebd656367beea97a5e67f4699b457d"},"schema_version":"1.0"},"canonical_sha256":"f7819e3d1e6b7240ff31247e0d41fba952a94793dc9a99732f1649923b5a36c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-03T01:17:36.390398Z","signature_b64":"emUujbK6DKJhV8CeFuBtID+xXjBVGgSm0/WEiHTnkK4B3sQqOxIsFGQXQHREtMWDaUvhY7dMOzNmF/ou7xF6BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7819e3d1e6b7240ff31247e0d41fba952a94793dc9a99732f1649923b5a36c3","last_reissued_at":"2026-07-03T01:17:36.389943Z","signature_status":"signed_v1","first_computed_at":"2026-07-03T01:17:36.389943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.01989","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":"2026-07-03T01:17:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QxwKEcC/d5SmOvT+5qBLcckcup0EWG53eUtQMSMb9Mf0i2E83Q3gIP7BQjbfrrQhyABOY4MU3XGPOrOL+C5sCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T12:19:04.089338Z"},"content_sha256":"fa8a54033f476cd4d581f3f99c6795db00438af5b6067ecedda1a7fdd3d23e99","schema_version":"1.0","event_id":"sha256:fa8a54033f476cd4d581f3f99c6795db00438af5b6067ecedda1a7fdd3d23e99"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:66AZ4PI6NNZEB7ZRER7A2QP3VF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hacking measurement-device-independent quantum key distribution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Konstantin Zaitsev, Polina Acheva","submitted_at":"2026-07-02T10:21:35Z","abstract_excerpt":"The security of practical quantum key distribution (QKD) systems is fundamentally constrained by vulnerabilities of single-photon detectors. Measurement-device-independent quantum key distribution (MDI-QKD) was proposed to remove this limitation by allowing all measurements to be performed by a completely untrusted party, under the assumption that the measurement node can be treated as adversarial but does not compromise the security guarantees of the protocol.\n  Here we show that this assumption is insufficient under realistic adversarial control of the measurement device. We present an attac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.01989","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/2607.01989/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":"2026-07-03T01:17:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fwov1g6/MI9Q4PYnbtGfUFyzXgFfkIUNiPO9nUn+jBkbB+kegJkua4i5fdEVTcDSVpjRJ4+OgLD6fF1fxSZZBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T12:19:04.089713Z"},"content_sha256":"4900915892c4ea6a808f99c67b38356759ce06aa6b22fa10993cf2c002fde142","schema_version":"1.0","event_id":"sha256:4900915892c4ea6a808f99c67b38356759ce06aa6b22fa10993cf2c002fde142"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/66AZ4PI6NNZEB7ZRER7A2QP3VF/bundle.json","state_url":"https://pith.science/pith/66AZ4PI6NNZEB7ZRER7A2QP3VF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/66AZ4PI6NNZEB7ZRER7A2QP3VF/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":"2026-07-05T12:19:04Z","links":{"resolver":"https://pith.science/pith/66AZ4PI6NNZEB7ZRER7A2QP3VF","bundle":"https://pith.science/pith/66AZ4PI6NNZEB7ZRER7A2QP3VF/bundle.json","state":"https://pith.science/pith/66AZ4PI6NNZEB7ZRER7A2QP3VF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/66AZ4PI6NNZEB7ZRER7A2QP3VF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:66AZ4PI6NNZEB7ZRER7A2QP3VF","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":"e1235e3e1aeb0fe0ec8000e99ed9ff9d70ebd656367beea97a5e67f4699b457d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-02T10:21:35Z","title_canon_sha256":"5110a87015ca98c1f4eab589b9bc3db8b67970968c8ccf4211689c234a22adee"},"schema_version":"1.0","source":{"id":"2607.01989","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.01989","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"arxiv_version","alias_value":"2607.01989v1","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.01989","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"pith_short_12","alias_value":"66AZ4PI6NNZE","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"pith_short_16","alias_value":"66AZ4PI6NNZEB7ZR","created_at":"2026-07-03T01:17:36Z"},{"alias_kind":"pith_short_8","alias_value":"66AZ4PI6","created_at":"2026-07-03T01:17:36Z"}],"graph_snapshots":[{"event_id":"sha256:4900915892c4ea6a808f99c67b38356759ce06aa6b22fa10993cf2c002fde142","target":"graph","created_at":"2026-07-03T01:17:36Z","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/2607.01989/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The security of practical quantum key distribution (QKD) systems is fundamentally constrained by vulnerabilities of single-photon detectors. Measurement-device-independent quantum key distribution (MDI-QKD) was proposed to remove this limitation by allowing all measurements to be performed by a completely untrusted party, under the assumption that the measurement node can be treated as adversarial but does not compromise the security guarantees of the protocol.\n  Here we show that this assumption is insufficient under realistic adversarial control of the measurement device. We present an attac","authors_text":"Konstantin Zaitsev, Polina Acheva","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-02T10:21:35Z","title":"Hacking measurement-device-independent quantum key distribution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.01989","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:fa8a54033f476cd4d581f3f99c6795db00438af5b6067ecedda1a7fdd3d23e99","target":"record","created_at":"2026-07-03T01:17:36Z","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":"e1235e3e1aeb0fe0ec8000e99ed9ff9d70ebd656367beea97a5e67f4699b457d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-07-02T10:21:35Z","title_canon_sha256":"5110a87015ca98c1f4eab589b9bc3db8b67970968c8ccf4211689c234a22adee"},"schema_version":"1.0","source":{"id":"2607.01989","kind":"arxiv","version":1}},"canonical_sha256":"f7819e3d1e6b7240ff31247e0d41fba952a94793dc9a99732f1649923b5a36c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7819e3d1e6b7240ff31247e0d41fba952a94793dc9a99732f1649923b5a36c3","first_computed_at":"2026-07-03T01:17:36.389943Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-03T01:17:36.389943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"emUujbK6DKJhV8CeFuBtID+xXjBVGgSm0/WEiHTnkK4B3sQqOxIsFGQXQHREtMWDaUvhY7dMOzNmF/ou7xF6BQ==","signature_status":"signed_v1","signed_at":"2026-07-03T01:17:36.390398Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.01989","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fa8a54033f476cd4d581f3f99c6795db00438af5b6067ecedda1a7fdd3d23e99","sha256:4900915892c4ea6a808f99c67b38356759ce06aa6b22fa10993cf2c002fde142"],"state_sha256":"3f1e10971181b3e1aeca029d4f7ce481ce404baf96b69fad177bda797428b58d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OMeoHzzdT/6Z3FSDXGnb/X7x6DQqvJgW4RmoR1ijP2d+qWIhqiKdTSbf6IZ/uaM6z8+YEIEnDXCL9mieuN4MAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T12:19:04.091725Z","bundle_sha256":"b424b7783d4abba3905833f0211e0ba8215ffcc0fc9b07b03a9c8ae0d102c6b8"}}