{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:FJXDZIUE6NBEZ7LW5OKJBTU76T","short_pith_number":"pith:FJXDZIUE","canonical_record":{"source":{"id":"1412.3219","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-10T07:46:44Z","cross_cats_sorted":[],"title_canon_sha256":"c8f7f7c7ba156e84da26b7ff60ef6b39b6e9f575b7ab75f9418e5a5464dbdd3a","abstract_canon_sha256":"25cfe214e061a47defe9c5b20fd1fcf9f55eaf39d77906063cec2da5fb126bb2"},"schema_version":"1.0"},"canonical_sha256":"2a6e3ca284f3424cfd76eb9490ce9ff4cf18d754256f8070aaff35bbf49397ad","source":{"kind":"arxiv","id":"1412.3219","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3219","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3219v1","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3219","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"pith_short_12","alias_value":"FJXDZIUE6NBE","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FJXDZIUE6NBEZ7LW","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FJXDZIUE","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:FJXDZIUE6NBEZ7LW5OKJBTU76T","target":"record","payload":{"canonical_record":{"source":{"id":"1412.3219","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-10T07:46:44Z","cross_cats_sorted":[],"title_canon_sha256":"c8f7f7c7ba156e84da26b7ff60ef6b39b6e9f575b7ab75f9418e5a5464dbdd3a","abstract_canon_sha256":"25cfe214e061a47defe9c5b20fd1fcf9f55eaf39d77906063cec2da5fb126bb2"},"schema_version":"1.0"},"canonical_sha256":"2a6e3ca284f3424cfd76eb9490ce9ff4cf18d754256f8070aaff35bbf49397ad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:31:37.229137Z","signature_b64":"Rw1EHe+vLWDRBxULJ2aA799oy3HK47mi4ZxNNFd0dVboYOE7VeTFN7cbQGapp1Jjbpzk052/Fi42wqMLgYhzDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a6e3ca284f3424cfd76eb9490ce9ff4cf18d754256f8070aaff35bbf49397ad","last_reissued_at":"2026-05-18T02:31:37.228575Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:31:37.228575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.3219","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":"2026-05-18T02:31:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GbKYt+AQ0ILgYu0OE/Fj8Oslcg1E1bKPalNgznxpyxrMoefuEASADYMU9/NIWXCAFFNH6hEB0wcn0HIo7pk1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:28:10.065615Z"},"content_sha256":"8d9f5e19f8457d5035988a4403e805fb92a9b3a1784eb048f5b8ab58aaa2f5d2","schema_version":"1.0","event_id":"sha256:8d9f5e19f8457d5035988a4403e805fb92a9b3a1784eb048f5b8ab58aaa2f5d2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:FJXDZIUE6NBEZ7LW5OKJBTU76T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generation of squeezed Schr\\\"odinger cat states with an operation allowing iterative growth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bhaskar Kanseri, Jean Etesse, Martin Bouillard, Rosa Tualle-Brouri","submitted_at":"2014-12-10T07:46:44Z","abstract_excerpt":"We present what is to our knowledge the first implementation of a Schr\\\"odinger cat states \"breeding\" operation, which allows an iterative growth of these states. We thus report the experimental generation of a squeezed Schr\\\"odinger cat state from two single photon Fock states, which can be seen as cat states with zero amplitude. These Fock states are mixed on a symmetrical beamsplitter and the generation is heralded by a homodyne measurement in one of the two output arms. The output state has a fidelity of 61% with an even squeezed Schr\\\"odinger cat state of amplitude $\\alpha=1.63$. This hyb"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3219","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":"2026-05-18T02:31:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NV5GqadCNjbrLzOqmrtDt7ZuW1DxqZK0ETs3DXx3lJei/tGlVIap+OZb+1il2keCZwhQn3algE+trCAOdvQ4AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:28:10.066164Z"},"content_sha256":"18325f5e617cfd504a0182eb3402037e3c2b94f7861bd4965c73c3cb720350c3","schema_version":"1.0","event_id":"sha256:18325f5e617cfd504a0182eb3402037e3c2b94f7861bd4965c73c3cb720350c3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FJXDZIUE6NBEZ7LW5OKJBTU76T/bundle.json","state_url":"https://pith.science/pith/FJXDZIUE6NBEZ7LW5OKJBTU76T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FJXDZIUE6NBEZ7LW5OKJBTU76T/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":"2026-05-31T18:28:10Z","links":{"resolver":"https://pith.science/pith/FJXDZIUE6NBEZ7LW5OKJBTU76T","bundle":"https://pith.science/pith/FJXDZIUE6NBEZ7LW5OKJBTU76T/bundle.json","state":"https://pith.science/pith/FJXDZIUE6NBEZ7LW5OKJBTU76T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FJXDZIUE6NBEZ7LW5OKJBTU76T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FJXDZIUE6NBEZ7LW5OKJBTU76T","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":"25cfe214e061a47defe9c5b20fd1fcf9f55eaf39d77906063cec2da5fb126bb2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-10T07:46:44Z","title_canon_sha256":"c8f7f7c7ba156e84da26b7ff60ef6b39b6e9f575b7ab75f9418e5a5464dbdd3a"},"schema_version":"1.0","source":{"id":"1412.3219","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3219","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3219v1","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3219","created_at":"2026-05-18T02:31:37Z"},{"alias_kind":"pith_short_12","alias_value":"FJXDZIUE6NBE","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FJXDZIUE6NBEZ7LW","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FJXDZIUE","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:18325f5e617cfd504a0182eb3402037e3c2b94f7861bd4965c73c3cb720350c3","target":"graph","created_at":"2026-05-18T02:31:37Z","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 what is to our knowledge the first implementation of a Schr\\\"odinger cat states \"breeding\" operation, which allows an iterative growth of these states. We thus report the experimental generation of a squeezed Schr\\\"odinger cat state from two single photon Fock states, which can be seen as cat states with zero amplitude. These Fock states are mixed on a symmetrical beamsplitter and the generation is heralded by a homodyne measurement in one of the two output arms. The output state has a fidelity of 61% with an even squeezed Schr\\\"odinger cat state of amplitude $\\alpha=1.63$. This hyb","authors_text":"Bhaskar Kanseri, Jean Etesse, Martin Bouillard, Rosa Tualle-Brouri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-10T07:46:44Z","title":"Generation of squeezed Schr\\\"odinger cat states with an operation allowing iterative growth"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3219","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":"sha256:8d9f5e19f8457d5035988a4403e805fb92a9b3a1784eb048f5b8ab58aaa2f5d2","target":"record","created_at":"2026-05-18T02:31:37Z","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":"25cfe214e061a47defe9c5b20fd1fcf9f55eaf39d77906063cec2da5fb126bb2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-12-10T07:46:44Z","title_canon_sha256":"c8f7f7c7ba156e84da26b7ff60ef6b39b6e9f575b7ab75f9418e5a5464dbdd3a"},"schema_version":"1.0","source":{"id":"1412.3219","kind":"arxiv","version":1}},"canonical_sha256":"2a6e3ca284f3424cfd76eb9490ce9ff4cf18d754256f8070aaff35bbf49397ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a6e3ca284f3424cfd76eb9490ce9ff4cf18d754256f8070aaff35bbf49397ad","first_computed_at":"2026-05-18T02:31:37.228575Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:31:37.228575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Rw1EHe+vLWDRBxULJ2aA799oy3HK47mi4ZxNNFd0dVboYOE7VeTFN7cbQGapp1Jjbpzk052/Fi42wqMLgYhzDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:31:37.229137Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.3219","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d9f5e19f8457d5035988a4403e805fb92a9b3a1784eb048f5b8ab58aaa2f5d2","sha256:18325f5e617cfd504a0182eb3402037e3c2b94f7861bd4965c73c3cb720350c3"],"state_sha256":"63ae42a11bdda060134caf8f364953cade3e05a619968dd0ec8d8830f796fc97"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kvW2JG0KJE+1VBJsBYW/j59cK7qA4z1YdFaJbuVjEs6ay1l+t88T4qJc423ttCEhkamXTMjvKKuFTLfWhHXnBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T18:28:10.070865Z","bundle_sha256":"d7deb45f9a548a66ebbc31b9741e1f8acd43142c3ae870665fdac90e2151090b"}}