{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:OA4H2L6R57WSG2Z3AHZ32KS6PS","short_pith_number":"pith:OA4H2L6R","canonical_record":{"source":{"id":"1005.4694","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-25T20:29:01Z","cross_cats_sorted":[],"title_canon_sha256":"818a1dd4c9394924cef090f9e9d8655c30a6be1418105a61017151a7ad10cb3b","abstract_canon_sha256":"4f486e821382f5f54892fc86e9636af04a58b4f3e7643ad96dd186014a131fc0"},"schema_version":"1.0"},"canonical_sha256":"70387d2fd1efed236b3b01f3bd2a5e7cb85baa447a9e9b8e700b988b385853c0","source":{"kind":"arxiv","id":"1005.4694","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.4694","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"arxiv_version","alias_value":"1005.4694v2","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.4694","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"pith_short_12","alias_value":"OA4H2L6R57WS","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OA4H2L6R57WSG2Z3","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OA4H2L6R","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:OA4H2L6R57WSG2Z3AHZ32KS6PS","target":"record","payload":{"canonical_record":{"source":{"id":"1005.4694","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-25T20:29:01Z","cross_cats_sorted":[],"title_canon_sha256":"818a1dd4c9394924cef090f9e9d8655c30a6be1418105a61017151a7ad10cb3b","abstract_canon_sha256":"4f486e821382f5f54892fc86e9636af04a58b4f3e7643ad96dd186014a131fc0"},"schema_version":"1.0"},"canonical_sha256":"70387d2fd1efed236b3b01f3bd2a5e7cb85baa447a9e9b8e700b988b385853c0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:25:39.181172Z","signature_b64":"jaYxWyW5XJWZUstVePFPy3XzgUeuUiqn3ct6CxymwOFRXfThs79ki8rjl98z5uuCIxpmOLYmM89kNCA++Wn+AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"70387d2fd1efed236b3b01f3bd2a5e7cb85baa447a9e9b8e700b988b385853c0","last_reissued_at":"2026-05-18T04:25:39.180509Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:25:39.180509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1005.4694","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":"2026-05-18T04:25:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8fvLXKUrGwEbqduLFo5GSzoOSzJdYeCg99JJKVU6rcxElds8t5wQBLaJCdDwPrOL4t5sQyl+m+kaW/Y6envvBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T18:57:31.836909Z"},"content_sha256":"c88a4ec99148bb7c2f5c7e2f83411ab2512db02e7a199b78faaa8b7f124b760c","schema_version":"1.0","event_id":"sha256:c88a4ec99148bb7c2f5c7e2f83411ab2512db02e7a199b78faaa8b7f124b760c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:OA4H2L6R57WSG2Z3AHZ32KS6PS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Information with Continuous Variable systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Carles Rod\\'o","submitted_at":"2010-05-25T20:29:01Z","abstract_excerpt":"This thesis deals with the study of quantum communication protocols with Continuous Variable (CV) systems. Continuous Variable systems are those described by canonical conjugated coordinates x and p endowed with infinite dimensional Hilbert spaces, thus involving a complex mathematical structure. A special class of CV states, are the so-called Gaussian states. With them, it has been possible to implement certain quantum tasks as quantum teleportation, quantum cryptography and quantum computation with fantastic experimental success. The importance of Gaussian states is two-fold; firstly, its st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.4694","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":"2026-05-18T04:25:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pdwhGBKyOIOF7jtpQCVOXajQua5ZJ579CDh+3+z9bvzS8s3Donuulj1jhn5HDmD8TEwtmmQnf/c/zkKa7eHgAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T18:57:31.837249Z"},"content_sha256":"dd5b0e23efb93672b923e74335ca7a59ee1df620b82ceaac407bbfeab3d2fd4a","schema_version":"1.0","event_id":"sha256:dd5b0e23efb93672b923e74335ca7a59ee1df620b82ceaac407bbfeab3d2fd4a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OA4H2L6R57WSG2Z3AHZ32KS6PS/bundle.json","state_url":"https://pith.science/pith/OA4H2L6R57WSG2Z3AHZ32KS6PS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OA4H2L6R57WSG2Z3AHZ32KS6PS/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":"2026-07-01T18:57:31Z","links":{"resolver":"https://pith.science/pith/OA4H2L6R57WSG2Z3AHZ32KS6PS","bundle":"https://pith.science/pith/OA4H2L6R57WSG2Z3AHZ32KS6PS/bundle.json","state":"https://pith.science/pith/OA4H2L6R57WSG2Z3AHZ32KS6PS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OA4H2L6R57WSG2Z3AHZ32KS6PS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:OA4H2L6R57WSG2Z3AHZ32KS6PS","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":"4f486e821382f5f54892fc86e9636af04a58b4f3e7643ad96dd186014a131fc0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-25T20:29:01Z","title_canon_sha256":"818a1dd4c9394924cef090f9e9d8655c30a6be1418105a61017151a7ad10cb3b"},"schema_version":"1.0","source":{"id":"1005.4694","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.4694","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"arxiv_version","alias_value":"1005.4694v2","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.4694","created_at":"2026-05-18T04:25:39Z"},{"alias_kind":"pith_short_12","alias_value":"OA4H2L6R57WS","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OA4H2L6R57WSG2Z3","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OA4H2L6R","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:dd5b0e23efb93672b923e74335ca7a59ee1df620b82ceaac407bbfeab3d2fd4a","target":"graph","created_at":"2026-05-18T04:25:39Z","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":"This thesis deals with the study of quantum communication protocols with Continuous Variable (CV) systems. Continuous Variable systems are those described by canonical conjugated coordinates x and p endowed with infinite dimensional Hilbert spaces, thus involving a complex mathematical structure. A special class of CV states, are the so-called Gaussian states. With them, it has been possible to implement certain quantum tasks as quantum teleportation, quantum cryptography and quantum computation with fantastic experimental success. The importance of Gaussian states is two-fold; firstly, its st","authors_text":"Carles Rod\\'o","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-25T20:29:01Z","title":"Quantum Information with Continuous Variable systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.4694","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:c88a4ec99148bb7c2f5c7e2f83411ab2512db02e7a199b78faaa8b7f124b760c","target":"record","created_at":"2026-05-18T04:25:39Z","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":"4f486e821382f5f54892fc86e9636af04a58b4f3e7643ad96dd186014a131fc0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-05-25T20:29:01Z","title_canon_sha256":"818a1dd4c9394924cef090f9e9d8655c30a6be1418105a61017151a7ad10cb3b"},"schema_version":"1.0","source":{"id":"1005.4694","kind":"arxiv","version":2}},"canonical_sha256":"70387d2fd1efed236b3b01f3bd2a5e7cb85baa447a9e9b8e700b988b385853c0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"70387d2fd1efed236b3b01f3bd2a5e7cb85baa447a9e9b8e700b988b385853c0","first_computed_at":"2026-05-18T04:25:39.180509Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:25:39.180509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jaYxWyW5XJWZUstVePFPy3XzgUeuUiqn3ct6CxymwOFRXfThs79ki8rjl98z5uuCIxpmOLYmM89kNCA++Wn+AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:25:39.181172Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.4694","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c88a4ec99148bb7c2f5c7e2f83411ab2512db02e7a199b78faaa8b7f124b760c","sha256:dd5b0e23efb93672b923e74335ca7a59ee1df620b82ceaac407bbfeab3d2fd4a"],"state_sha256":"2543004dfe3650ce2a5674ded97599a4acd7e418c4cb6caede09f31934ac4fd8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fdnK+dhgWiIRAt/b1ngBknfc6jH/9MHZMg/8js3T9kGU25REJv5CM4UH84aiZyE5gWWWWVOTdeYpXDGqceWNDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T18:57:31.839116Z","bundle_sha256":"9f62d1b6486b266a7b6bc69d555657e410e8da4c7d695c3a1c6b7e41483d27e6"}}