{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:DYQ5RSMC666VRDVHOD5IUP6ONA","short_pith_number":"pith:DYQ5RSMC","canonical_record":{"source":{"id":"quant-ph/0011073","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-11-16T16:38:47Z","cross_cats_sorted":[],"title_canon_sha256":"fac7ec915bf392537b7d41b9e35125ebb6fbd0e26cbc05642672ca0058e2225b","abstract_canon_sha256":"a8becd8d88502a96d120128f31a74cac267ed314f1c6a42a07ec86795a802338"},"schema_version":"1.0"},"canonical_sha256":"1e21d8c982f7bd588ea770fa8a3fce680b83ac1c4fbb644ed1541f7294c088da","source":{"kind":"arxiv","id":"quant-ph/0011073","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0011073","created_at":"2026-05-18T01:09:07Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0011073v1","created_at":"2026-05-18T01:09:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0011073","created_at":"2026-05-18T01:09:07Z"},{"alias_kind":"pith_short_12","alias_value":"DYQ5RSMC666V","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"DYQ5RSMC666VRDVH","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"DYQ5RSMC","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:DYQ5RSMC666VRDVHOD5IUP6ONA","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0011073","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2000-11-16T16:38:47Z","cross_cats_sorted":[],"title_canon_sha256":"fac7ec915bf392537b7d41b9e35125ebb6fbd0e26cbc05642672ca0058e2225b","abstract_canon_sha256":"a8becd8d88502a96d120128f31a74cac267ed314f1c6a42a07ec86795a802338"},"schema_version":"1.0"},"canonical_sha256":"1e21d8c982f7bd588ea770fa8a3fce680b83ac1c4fbb644ed1541f7294c088da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:07.546511Z","signature_b64":"rUOQx2yfmawI54Hz0uP6tCkCsxxOZjhrGcEK4Hu/v6obBqL9jWPZgsw5WUCX0rUhBd8zvyQ1nTQ+if63QV1rAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e21d8c982f7bd588ea770fa8a3fce680b83ac1c4fbb644ed1541f7294c088da","last_reissued_at":"2026-05-18T01:09:07.546017Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:07.546017Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0011073","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":"2026-05-18T01:09:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"90MoRm3aW22izegez3US9VqcrUOR0+/t/LqirWku2ySd5Ywru2Sc9Oqyp1vpidz/a0FblTNA039Dwu3Pp016AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:40:28.578359Z"},"content_sha256":"872be3bed5d3a41a6848afb3022d540be60749f35b76885867851014ac669a8d","schema_version":"1.0","event_id":"sha256:872be3bed5d3a41a6848afb3022d540be60749f35b76885867851014ac669a8d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:DYQ5RSMC666VRDVHOD5IUP6ONA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Cloning and Distributed Measurements","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Dagmar Bruss, John Calsamiglia, Norbert L\\\"utkenhaus","submitted_at":"2000-11-16T16:38:47Z","abstract_excerpt":"We study measurements on various subsystems of the output of a universal 1 to 2 cloning machine, and establish a correspondence between these measurements at the output and effective measurements on the original input. We show that one can implement sharp effective measurement elements by measuring only two out of the three output systems. Additionally, certain complete sets of sharp measurements on the input can be realised by measurements on the two clones. Furthermore, we introduce a scheme that allows to restore the original input in one of the output bits, by using measurements and classi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0011073","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":"2026-05-18T01:09:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MwTfVoGTMhow/Wo7zW5MEdl9dVVu9EzgbJZpz1Rsh1P+yuy+qbrJxzcbeeDitNs+fHuX5UCZh8Ox7/Y/v+3RCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:40:28.578952Z"},"content_sha256":"0bb52ed022f62701a60675ae48f804c93e704e9b394727fb14884e70ed3f0936","schema_version":"1.0","event_id":"sha256:0bb52ed022f62701a60675ae48f804c93e704e9b394727fb14884e70ed3f0936"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DYQ5RSMC666VRDVHOD5IUP6ONA/bundle.json","state_url":"https://pith.science/pith/DYQ5RSMC666VRDVHOD5IUP6ONA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DYQ5RSMC666VRDVHOD5IUP6ONA/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":"2026-05-28T08:40:28Z","links":{"resolver":"https://pith.science/pith/DYQ5RSMC666VRDVHOD5IUP6ONA","bundle":"https://pith.science/pith/DYQ5RSMC666VRDVHOD5IUP6ONA/bundle.json","state":"https://pith.science/pith/DYQ5RSMC666VRDVHOD5IUP6ONA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DYQ5RSMC666VRDVHOD5IUP6ONA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:DYQ5RSMC666VRDVHOD5IUP6ONA","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":"a8becd8d88502a96d120128f31a74cac267ed314f1c6a42a07ec86795a802338","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2000-11-16T16:38:47Z","title_canon_sha256":"fac7ec915bf392537b7d41b9e35125ebb6fbd0e26cbc05642672ca0058e2225b"},"schema_version":"1.0","source":{"id":"quant-ph/0011073","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0011073","created_at":"2026-05-18T01:09:07Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0011073v1","created_at":"2026-05-18T01:09:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0011073","created_at":"2026-05-18T01:09:07Z"},{"alias_kind":"pith_short_12","alias_value":"DYQ5RSMC666V","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"DYQ5RSMC666VRDVH","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"DYQ5RSMC","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:0bb52ed022f62701a60675ae48f804c93e704e9b394727fb14884e70ed3f0936","target":"graph","created_at":"2026-05-18T01:09:07Z","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":"We study measurements on various subsystems of the output of a universal 1 to 2 cloning machine, and establish a correspondence between these measurements at the output and effective measurements on the original input. We show that one can implement sharp effective measurement elements by measuring only two out of the three output systems. Additionally, certain complete sets of sharp measurements on the input can be realised by measurements on the two clones. Furthermore, we introduce a scheme that allows to restore the original input in one of the output bits, by using measurements and classi","authors_text":"Dagmar Bruss, John Calsamiglia, Norbert L\\\"utkenhaus","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2000-11-16T16:38:47Z","title":"Quantum Cloning and Distributed Measurements"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0011073","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":"sha256:872be3bed5d3a41a6848afb3022d540be60749f35b76885867851014ac669a8d","target":"record","created_at":"2026-05-18T01:09:07Z","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":"a8becd8d88502a96d120128f31a74cac267ed314f1c6a42a07ec86795a802338","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2000-11-16T16:38:47Z","title_canon_sha256":"fac7ec915bf392537b7d41b9e35125ebb6fbd0e26cbc05642672ca0058e2225b"},"schema_version":"1.0","source":{"id":"quant-ph/0011073","kind":"arxiv","version":1}},"canonical_sha256":"1e21d8c982f7bd588ea770fa8a3fce680b83ac1c4fbb644ed1541f7294c088da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e21d8c982f7bd588ea770fa8a3fce680b83ac1c4fbb644ed1541f7294c088da","first_computed_at":"2026-05-18T01:09:07.546017Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:07.546017Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rUOQx2yfmawI54Hz0uP6tCkCsxxOZjhrGcEK4Hu/v6obBqL9jWPZgsw5WUCX0rUhBd8zvyQ1nTQ+if63QV1rAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:07.546511Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0011073","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:872be3bed5d3a41a6848afb3022d540be60749f35b76885867851014ac669a8d","sha256:0bb52ed022f62701a60675ae48f804c93e704e9b394727fb14884e70ed3f0936"],"state_sha256":"d3c0159c5f54f0052f7372e1ab936e1cdfd1898bd315eed1ea135dac80a6cbef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KlzagpuzVG1eaweN6xKW2RtpKx/B/PTZUzCuC7oX36n+fuJ2jAB91IXpuYi9wieXju+luLDLU8SCBLzIxOH0Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:40:28.581724Z","bundle_sha256":"030f3c45d33c4ee77ee8596ecd715765cbc654723f3060353c15821efccd9f38"}}