{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:EJMOFHZUHTKVJA7EWXBREANIJM","short_pith_number":"pith:EJMOFHZU","canonical_record":{"source":{"id":"1608.01086","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-08-03T06:32:20Z","cross_cats_sorted":[],"title_canon_sha256":"afdfe8a5959db24083ad101eefb44b6f6f63980cb5b0d8b59e29a4d70227b448","abstract_canon_sha256":"b0899e586cc660e558fa3ba1d316b81c24f7fc1aa8085a5712c0f3de99e0905a"},"schema_version":"1.0"},"canonical_sha256":"2258e29f343cd55483e4b5c31201a84b1871a56ace74aabe0c53d40d23cd0543","source":{"kind":"arxiv","id":"1608.01086","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.01086","created_at":"2026-05-18T00:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1608.01086v1","created_at":"2026-05-18T00:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01086","created_at":"2026-05-18T00:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"EJMOFHZUHTKV","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EJMOFHZUHTKVJA7E","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EJMOFHZU","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:EJMOFHZUHTKVJA7EWXBREANIJM","target":"record","payload":{"canonical_record":{"source":{"id":"1608.01086","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-08-03T06:32:20Z","cross_cats_sorted":[],"title_canon_sha256":"afdfe8a5959db24083ad101eefb44b6f6f63980cb5b0d8b59e29a4d70227b448","abstract_canon_sha256":"b0899e586cc660e558fa3ba1d316b81c24f7fc1aa8085a5712c0f3de99e0905a"},"schema_version":"1.0"},"canonical_sha256":"2258e29f343cd55483e4b5c31201a84b1871a56ace74aabe0c53d40d23cd0543","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:13.616341Z","signature_b64":"xDUfHbBtlblElsARMvYHgMrB8qJsizIwERnlGHgwoTZNi+jRb/DtevYXiFGBUn1jWECBbU2UqZNvPv7oOnz+CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2258e29f343cd55483e4b5c31201a84b1871a56ace74aabe0c53d40d23cd0543","last_reissued_at":"2026-05-18T00:47:13.615695Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:13.615695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.01086","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":"2026-05-18T00:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vH1h9eNcUckI5ofaZ07rYQjoniBspRdZGgOsKH2J/1/I4wsWRxNL9H5L+UXyQ2+YHxROuuREQWfDD+1LXmtBDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:59:43.327080Z"},"content_sha256":"4d0bad5c163d640c5ffabce6d0b2a21cd0929e36bd0ddc09bb4cc18480418ede","schema_version":"1.0","event_id":"sha256:4d0bad5c163d640c5ffabce6d0b2a21cd0929e36bd0ddc09bb4cc18480418ede"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:EJMOFHZUHTKVJA7EWXBREANIJM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental Quantum Digital Signature over 102 km","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Hua-Lei Yin, Hui Liu, Jian Wang, Jian-Wei Pan, Li-Xing You, Qiang Zhang, Qi-Jie Tang, Si-Jing Chen, Teng-Yun Chen, Wei-Jun Zhang, Yao Fu, Zeng-Bing Chen, Zhen Wang","submitted_at":"2016-08-03T06:32:20Z","abstract_excerpt":"Quantum digital signature (QDS) is an approach to guarantee the nonrepudiation, unforgeability and transferability of a signature with the information-theoretical security. All previous experimental realizations of QDS relied on an unrealistic assumption of secure channels and the longest distance is only several kilometers. Here, we have experimentally demonstrated a recently proposed QDS protocol without any secure channel. Exploiting the decoy state modulation, we have successfully signed one bit message through up to 102 km optical fiber. Furthermore, we continuously run the system to sign"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01086","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":""},"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":"2026-05-18T00:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wmqpl61uH1f5DAjD+I8IZSoMYLh+hYDkWwtQ1We2hHW7E0OFi51wjFJq2FPKPdSK7AU7tuPEqmZ+zeTz/5dgAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T21:59:43.327436Z"},"content_sha256":"8c1d5299c2ae3d7382cebed03e44d9a27176f00d2aa0595acbcf509324a33683","schema_version":"1.0","event_id":"sha256:8c1d5299c2ae3d7382cebed03e44d9a27176f00d2aa0595acbcf509324a33683"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EJMOFHZUHTKVJA7EWXBREANIJM/bundle.json","state_url":"https://pith.science/pith/EJMOFHZUHTKVJA7EWXBREANIJM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EJMOFHZUHTKVJA7EWXBREANIJM/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":"2026-06-08T21:59:43Z","links":{"resolver":"https://pith.science/pith/EJMOFHZUHTKVJA7EWXBREANIJM","bundle":"https://pith.science/pith/EJMOFHZUHTKVJA7EWXBREANIJM/bundle.json","state":"https://pith.science/pith/EJMOFHZUHTKVJA7EWXBREANIJM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EJMOFHZUHTKVJA7EWXBREANIJM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:EJMOFHZUHTKVJA7EWXBREANIJM","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":"b0899e586cc660e558fa3ba1d316b81c24f7fc1aa8085a5712c0f3de99e0905a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-08-03T06:32:20Z","title_canon_sha256":"afdfe8a5959db24083ad101eefb44b6f6f63980cb5b0d8b59e29a4d70227b448"},"schema_version":"1.0","source":{"id":"1608.01086","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.01086","created_at":"2026-05-18T00:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1608.01086v1","created_at":"2026-05-18T00:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.01086","created_at":"2026-05-18T00:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"EJMOFHZUHTKV","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"EJMOFHZUHTKVJA7E","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"EJMOFHZU","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:8c1d5299c2ae3d7382cebed03e44d9a27176f00d2aa0595acbcf509324a33683","target":"graph","created_at":"2026-05-18T00:47:13Z","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"},"paper":{"abstract_excerpt":"Quantum digital signature (QDS) is an approach to guarantee the nonrepudiation, unforgeability and transferability of a signature with the information-theoretical security. All previous experimental realizations of QDS relied on an unrealistic assumption of secure channels and the longest distance is only several kilometers. Here, we have experimentally demonstrated a recently proposed QDS protocol without any secure channel. Exploiting the decoy state modulation, we have successfully signed one bit message through up to 102 km optical fiber. Furthermore, we continuously run the system to sign","authors_text":"Hua-Lei Yin, Hui Liu, Jian Wang, Jian-Wei Pan, Li-Xing You, Qiang Zhang, Qi-Jie Tang, Si-Jing Chen, Teng-Yun Chen, Wei-Jun Zhang, Yao Fu, Zeng-Bing Chen, Zhen Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-08-03T06:32:20Z","title":"Experimental Quantum Digital Signature over 102 km"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.01086","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":"sha256:4d0bad5c163d640c5ffabce6d0b2a21cd0929e36bd0ddc09bb4cc18480418ede","target":"record","created_at":"2026-05-18T00:47:13Z","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":"b0899e586cc660e558fa3ba1d316b81c24f7fc1aa8085a5712c0f3de99e0905a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-08-03T06:32:20Z","title_canon_sha256":"afdfe8a5959db24083ad101eefb44b6f6f63980cb5b0d8b59e29a4d70227b448"},"schema_version":"1.0","source":{"id":"1608.01086","kind":"arxiv","version":1}},"canonical_sha256":"2258e29f343cd55483e4b5c31201a84b1871a56ace74aabe0c53d40d23cd0543","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2258e29f343cd55483e4b5c31201a84b1871a56ace74aabe0c53d40d23cd0543","first_computed_at":"2026-05-18T00:47:13.615695Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:13.615695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xDUfHbBtlblElsARMvYHgMrB8qJsizIwERnlGHgwoTZNi+jRb/DtevYXiFGBUn1jWECBbU2UqZNvPv7oOnz+CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:13.616341Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.01086","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4d0bad5c163d640c5ffabce6d0b2a21cd0929e36bd0ddc09bb4cc18480418ede","sha256:8c1d5299c2ae3d7382cebed03e44d9a27176f00d2aa0595acbcf509324a33683"],"state_sha256":"49b3a467bcb0e8a54d0a0d58594c7f3fd3003fa1698477b84b5744b086f938c4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ea36lFwLhnGDc689oCKDzMbIlIcZk2Uzq9+q5s0H7eo8Pbo1HpKafu7gLa417ZGPjcLKjAUXQfCmGLNbv0HZBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T21:59:43.329673Z","bundle_sha256":"61c9cd4513f8970685aa082728bc6030b37b19ebf93580c209427ec523680ff9"}}