{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:CSRWOFZCPDUBS5E7VDTWBBOYWA","short_pith_number":"pith:CSRWOFZC","canonical_record":{"source":{"id":"1201.6234","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-30T14:39:49Z","cross_cats_sorted":[],"title_canon_sha256":"cc72bf8bfac8f032a955a191f26cab711b9277baffd2906d0fdb21219ff037c4","abstract_canon_sha256":"3da91fb066525f6fac215b11b920ddf92310654e2e6b390f75c2fea97265f2c0"},"schema_version":"1.0"},"canonical_sha256":"14a367172278e819749fa8e76085d8b038ffaeb4fe95d596b34eaf7cf28735ec","source":{"kind":"arxiv","id":"1201.6234","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.6234","created_at":"2026-05-18T03:55:00Z"},{"alias_kind":"arxiv_version","alias_value":"1201.6234v2","created_at":"2026-05-18T03:55:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.6234","created_at":"2026-05-18T03:55:00Z"},{"alias_kind":"pith_short_12","alias_value":"CSRWOFZCPDUB","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CSRWOFZCPDUBS5E7","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CSRWOFZC","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:CSRWOFZCPDUBS5E7VDTWBBOYWA","target":"record","payload":{"canonical_record":{"source":{"id":"1201.6234","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-30T14:39:49Z","cross_cats_sorted":[],"title_canon_sha256":"cc72bf8bfac8f032a955a191f26cab711b9277baffd2906d0fdb21219ff037c4","abstract_canon_sha256":"3da91fb066525f6fac215b11b920ddf92310654e2e6b390f75c2fea97265f2c0"},"schema_version":"1.0"},"canonical_sha256":"14a367172278e819749fa8e76085d8b038ffaeb4fe95d596b34eaf7cf28735ec","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:55:00.136937Z","signature_b64":"KfAP+Irnmd0ONF2kEoTQkmAviznUHcuoPMIC1qBi8t+2FS0Ds/7kbHuKV+AywtUSQZCj5qwEugkxKnplTKAsCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14a367172278e819749fa8e76085d8b038ffaeb4fe95d596b34eaf7cf28735ec","last_reissued_at":"2026-05-18T03:55:00.136330Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:55:00.136330Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.6234","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":"2026-05-18T03:55:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SUe30ra4R6c4v6XZxjvi/JgkECf7THhks+Cp9JeT1RJkb2NICl/Efkg41UaZ8auS1wE+7vW5cOmrpKoWU+MyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:20:58.358024Z"},"content_sha256":"96181b9219f4322a4f821f38ff43b1f7a575633c91bb97d07becba8274fe05ad","schema_version":"1.0","event_id":"sha256:96181b9219f4322a4f821f38ff43b1f7a575633c91bb97d07becba8274fe05ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:CSRWOFZCPDUBS5E7VDTWBBOYWA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental linear-optical implementation of a multifunctional optimal qubit cloner","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Adam Miranowicz, Antonin Cernoch, Jan Soubusta, Karel Lemr, Karol Bartkiewicz","submitted_at":"2012-01-30T14:39:49Z","abstract_excerpt":"We present the first experimental implementation of a multifunctional device for the optimal cloning of one to two qubits. Previous implementations have always been designed to optimize the cloning procedure with respect to one single type of a priori information about the cloned state. In contrast, our \"all-in-one\" implementation is optimal for several prominent regimes such as universal cloning, phase-covariant cloning, and also the first ever realized mirror phase-covariant cloning, when the square of the expected value of Pauli's Z operator is known in advance. In all these regimes the exp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.6234","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":""},"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":"2026-05-18T03:55:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FL0JKAh93iVplxjd1XPmexAPcNa2pZZ8zZe9i4lkkaEyplGf2xxwZO8875LVaJIM3dL+FD9gL8xJkj3kgA7PBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:20:58.358739Z"},"content_sha256":"a914ffd1eb577a4a3b758ac3c168d5ff39cd1fa7cb36c57a36c2578460f97b17","schema_version":"1.0","event_id":"sha256:a914ffd1eb577a4a3b758ac3c168d5ff39cd1fa7cb36c57a36c2578460f97b17"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CSRWOFZCPDUBS5E7VDTWBBOYWA/bundle.json","state_url":"https://pith.science/pith/CSRWOFZCPDUBS5E7VDTWBBOYWA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CSRWOFZCPDUBS5E7VDTWBBOYWA/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":"2026-05-26T01:20:58Z","links":{"resolver":"https://pith.science/pith/CSRWOFZCPDUBS5E7VDTWBBOYWA","bundle":"https://pith.science/pith/CSRWOFZCPDUBS5E7VDTWBBOYWA/bundle.json","state":"https://pith.science/pith/CSRWOFZCPDUBS5E7VDTWBBOYWA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CSRWOFZCPDUBS5E7VDTWBBOYWA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:CSRWOFZCPDUBS5E7VDTWBBOYWA","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":"3da91fb066525f6fac215b11b920ddf92310654e2e6b390f75c2fea97265f2c0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-30T14:39:49Z","title_canon_sha256":"cc72bf8bfac8f032a955a191f26cab711b9277baffd2906d0fdb21219ff037c4"},"schema_version":"1.0","source":{"id":"1201.6234","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.6234","created_at":"2026-05-18T03:55:00Z"},{"alias_kind":"arxiv_version","alias_value":"1201.6234v2","created_at":"2026-05-18T03:55:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.6234","created_at":"2026-05-18T03:55:00Z"},{"alias_kind":"pith_short_12","alias_value":"CSRWOFZCPDUB","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CSRWOFZCPDUBS5E7","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CSRWOFZC","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:a914ffd1eb577a4a3b758ac3c168d5ff39cd1fa7cb36c57a36c2578460f97b17","target":"graph","created_at":"2026-05-18T03:55:00Z","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 present the first experimental implementation of a multifunctional device for the optimal cloning of one to two qubits. Previous implementations have always been designed to optimize the cloning procedure with respect to one single type of a priori information about the cloned state. In contrast, our \"all-in-one\" implementation is optimal for several prominent regimes such as universal cloning, phase-covariant cloning, and also the first ever realized mirror phase-covariant cloning, when the square of the expected value of Pauli's Z operator is known in advance. In all these regimes the exp","authors_text":"Adam Miranowicz, Antonin Cernoch, Jan Soubusta, Karel Lemr, Karol Bartkiewicz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-30T14:39:49Z","title":"Experimental linear-optical implementation of a multifunctional optimal qubit cloner"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.6234","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":"sha256:96181b9219f4322a4f821f38ff43b1f7a575633c91bb97d07becba8274fe05ad","target":"record","created_at":"2026-05-18T03:55:00Z","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":"3da91fb066525f6fac215b11b920ddf92310654e2e6b390f75c2fea97265f2c0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-30T14:39:49Z","title_canon_sha256":"cc72bf8bfac8f032a955a191f26cab711b9277baffd2906d0fdb21219ff037c4"},"schema_version":"1.0","source":{"id":"1201.6234","kind":"arxiv","version":2}},"canonical_sha256":"14a367172278e819749fa8e76085d8b038ffaeb4fe95d596b34eaf7cf28735ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14a367172278e819749fa8e76085d8b038ffaeb4fe95d596b34eaf7cf28735ec","first_computed_at":"2026-05-18T03:55:00.136330Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:55:00.136330Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KfAP+Irnmd0ONF2kEoTQkmAviznUHcuoPMIC1qBi8t+2FS0Ds/7kbHuKV+AywtUSQZCj5qwEugkxKnplTKAsCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:55:00.136937Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.6234","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96181b9219f4322a4f821f38ff43b1f7a575633c91bb97d07becba8274fe05ad","sha256:a914ffd1eb577a4a3b758ac3c168d5ff39cd1fa7cb36c57a36c2578460f97b17"],"state_sha256":"cd2d5ea0cf9f1323448fe5440d1a0dd209302acc49e001faa6f588baf138c4e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4OdsDryqrgi+oIQjbqf7oJ98owPxYkTiyN7rFgzxYJfixgCT5vXr+YDuXJf/YX4Q834f3gItRNlqt0/Cm335Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T01:20:58.362234Z","bundle_sha256":"0dcca74bfdf7ed960dae7c05c041ddf112b478e4b0d770aa243cfb16ca2ed586"}}