{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:D33LHX7ROT347NETQASUZEX7GB","short_pith_number":"pith:D33LHX7R","canonical_record":{"source":{"id":"1211.2594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-11-12T12:47:05Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"025159613e123b191c0446e5c73e5eb25f749b617c239f604ef2d8590dbb82d6","abstract_canon_sha256":"21185c4bf361dd4c4cf00c8c3278cbb8b356fa71b6a4ae9d9b27c37879ff687a"},"schema_version":"1.0"},"canonical_sha256":"1ef6b3dff174f7cfb49380254c92ff3076a9b129c0ddb19044c326c405094243","source":{"kind":"arxiv","id":"1211.2594","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.2594","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"arxiv_version","alias_value":"1211.2594v1","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.2594","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"pith_short_12","alias_value":"D33LHX7ROT34","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"D33LHX7ROT347NET","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"D33LHX7R","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:D33LHX7ROT347NETQASUZEX7GB","target":"record","payload":{"canonical_record":{"source":{"id":"1211.2594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-11-12T12:47:05Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"025159613e123b191c0446e5c73e5eb25f749b617c239f604ef2d8590dbb82d6","abstract_canon_sha256":"21185c4bf361dd4c4cf00c8c3278cbb8b356fa71b6a4ae9d9b27c37879ff687a"},"schema_version":"1.0"},"canonical_sha256":"1ef6b3dff174f7cfb49380254c92ff3076a9b129c0ddb19044c326c405094243","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:02.890261Z","signature_b64":"dudnBXZwZ6AKpUO1yaU5Y2ESybBrcStu1ikvfquxbpUNDDZdcmYnEtThvE2DGpXf2B50lAqey9Sb0z6l5hI4Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1ef6b3dff174f7cfb49380254c92ff3076a9b129c0ddb19044c326c405094243","last_reissued_at":"2026-05-18T03:41:02.889681Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:02.889681Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1211.2594","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":"2026-05-18T03:41:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M8PbxW6t3rOvD5WYF72KA954Lz4TCuC8LxHI+XabThp0e47fd/L65gz6UdNIrfyn5wrBRTfRmAvIj3VMg25ODQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:36:33.855741Z"},"content_sha256":"66f55c40153df58b810f62dcc7a8a14d7895df1b8856f46be04151e77352c353","schema_version":"1.0","event_id":"sha256:66f55c40153df58b810f62dcc7a8a14d7895df1b8856f46be04151e77352c353"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:D33LHX7ROT347NETQASUZEX7GB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonclassical States of Light and Mechanics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"quant-ph","authors_text":"Christoph Simon, Claudiu Genes, David Vitali, Dirk Bouwmeester, Gerard Milburn, Klemens Hammerer, Paolo Tombesi","submitted_at":"2012-11-12T12:47:05Z","abstract_excerpt":"This book chapter reports on theoretical protocols for generating nonclassical states of light and mechanics. Nonclassical states are understood as squeezed states, entangled states or states with negative Wigner function, and the nonclassicality can refer either to light, to mechanics, or to both, light and mechanics. In all protocols nonclassicallity arises from a strong optomechanical coupling. Some protocols rely in addition on homodyne detection or photon counting of light."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.2594","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":"2026-05-18T03:41:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EwT557AWttMYgZPC2UPCCGEsXF1Xplro/X7MF3U2z37kC79UP3v+5/5Sv+sta8jf4QRcsMgtjGQPVGPZ2gFaBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T17:36:33.856126Z"},"content_sha256":"3390fed371e54c1e3bf30e4c45942a5b9aba45c9cd4d51c7dba5796f96c953d6","schema_version":"1.0","event_id":"sha256:3390fed371e54c1e3bf30e4c45942a5b9aba45c9cd4d51c7dba5796f96c953d6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D33LHX7ROT347NETQASUZEX7GB/bundle.json","state_url":"https://pith.science/pith/D33LHX7ROT347NETQASUZEX7GB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D33LHX7ROT347NETQASUZEX7GB/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":"2026-05-20T17:36:33Z","links":{"resolver":"https://pith.science/pith/D33LHX7ROT347NETQASUZEX7GB","bundle":"https://pith.science/pith/D33LHX7ROT347NETQASUZEX7GB/bundle.json","state":"https://pith.science/pith/D33LHX7ROT347NETQASUZEX7GB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D33LHX7ROT347NETQASUZEX7GB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:D33LHX7ROT347NETQASUZEX7GB","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":"21185c4bf361dd4c4cf00c8c3278cbb8b356fa71b6a4ae9d9b27c37879ff687a","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-11-12T12:47:05Z","title_canon_sha256":"025159613e123b191c0446e5c73e5eb25f749b617c239f604ef2d8590dbb82d6"},"schema_version":"1.0","source":{"id":"1211.2594","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1211.2594","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"arxiv_version","alias_value":"1211.2594v1","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1211.2594","created_at":"2026-05-18T03:41:02Z"},{"alias_kind":"pith_short_12","alias_value":"D33LHX7ROT34","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"D33LHX7ROT347NET","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"D33LHX7R","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:3390fed371e54c1e3bf30e4c45942a5b9aba45c9cd4d51c7dba5796f96c953d6","target":"graph","created_at":"2026-05-18T03:41:02Z","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 book chapter reports on theoretical protocols for generating nonclassical states of light and mechanics. Nonclassical states are understood as squeezed states, entangled states or states with negative Wigner function, and the nonclassicality can refer either to light, to mechanics, or to both, light and mechanics. In all protocols nonclassicallity arises from a strong optomechanical coupling. Some protocols rely in addition on homodyne detection or photon counting of light.","authors_text":"Christoph Simon, Claudiu Genes, David Vitali, Dirk Bouwmeester, Gerard Milburn, Klemens Hammerer, Paolo Tombesi","cross_cats":["cond-mat.mes-hall","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-11-12T12:47:05Z","title":"Nonclassical States of Light and Mechanics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1211.2594","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":"sha256:66f55c40153df58b810f62dcc7a8a14d7895df1b8856f46be04151e77352c353","target":"record","created_at":"2026-05-18T03:41:02Z","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":"21185c4bf361dd4c4cf00c8c3278cbb8b356fa71b6a4ae9d9b27c37879ff687a","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-11-12T12:47:05Z","title_canon_sha256":"025159613e123b191c0446e5c73e5eb25f749b617c239f604ef2d8590dbb82d6"},"schema_version":"1.0","source":{"id":"1211.2594","kind":"arxiv","version":1}},"canonical_sha256":"1ef6b3dff174f7cfb49380254c92ff3076a9b129c0ddb19044c326c405094243","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ef6b3dff174f7cfb49380254c92ff3076a9b129c0ddb19044c326c405094243","first_computed_at":"2026-05-18T03:41:02.889681Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:02.889681Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dudnBXZwZ6AKpUO1yaU5Y2ESybBrcStu1ikvfquxbpUNDDZdcmYnEtThvE2DGpXf2B50lAqey9Sb0z6l5hI4Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:02.890261Z","signed_message":"canonical_sha256_bytes"},"source_id":"1211.2594","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66f55c40153df58b810f62dcc7a8a14d7895df1b8856f46be04151e77352c353","sha256:3390fed371e54c1e3bf30e4c45942a5b9aba45c9cd4d51c7dba5796f96c953d6"],"state_sha256":"e5dcb65214463a04dc784a6d2ab9e3c685157d452a5e2716b8c13a4dc9c739b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8vWBIKyaVOkj4KklYFXg+ob74lHFfyZ5svYPCF8MPHN7nL+0fh4yZpeVcB+Q8cHt7XNV3o1vjUIV0jK83DOxBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T17:36:33.858180Z","bundle_sha256":"fb4ffd33c828b055c50af4d438bcfda77d3de8b187d48767c226e16d7a64fcdd"}}