{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:QAHDKZL3RKY7CHUHC4WAJCRRMK","short_pith_number":"pith:QAHDKZL3","canonical_record":{"source":{"id":"1012.5872","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-29T05:28:54Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"0474960ba94c2a9e7550e011a8a187546bfb4dd11f56692d472d614bcd5f214a","abstract_canon_sha256":"0a37965f65aa1f819d4146df0d5bdc997f2f86a302e965d3d318f3d66629e44d"},"schema_version":"1.0"},"canonical_sha256":"800e35657b8ab1f11e87172c048a31629bacee4ee74560e951808f76dd54994f","source":{"kind":"arxiv","id":"1012.5872","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.5872","created_at":"2026-05-18T04:32:21Z"},{"alias_kind":"arxiv_version","alias_value":"1012.5872v1","created_at":"2026-05-18T04:32:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.5872","created_at":"2026-05-18T04:32:21Z"},{"alias_kind":"pith_short_12","alias_value":"QAHDKZL3RKY7","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QAHDKZL3RKY7CHUH","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QAHDKZL3","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:QAHDKZL3RKY7CHUHC4WAJCRRMK","target":"record","payload":{"canonical_record":{"source":{"id":"1012.5872","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-29T05:28:54Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"0474960ba94c2a9e7550e011a8a187546bfb4dd11f56692d472d614bcd5f214a","abstract_canon_sha256":"0a37965f65aa1f819d4146df0d5bdc997f2f86a302e965d3d318f3d66629e44d"},"schema_version":"1.0"},"canonical_sha256":"800e35657b8ab1f11e87172c048a31629bacee4ee74560e951808f76dd54994f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:32:21.268953Z","signature_b64":"wS8ODYndcrDSxG4vrNyxSM+gan1dEXnVx+tSC7A/Qpe91GWGI2Mmmkhy7yyftRYuzEdhcuPrxBNxwrB8wuu9CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"800e35657b8ab1f11e87172c048a31629bacee4ee74560e951808f76dd54994f","last_reissued_at":"2026-05-18T04:32:21.268191Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:32:21.268191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1012.5872","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":"2026-05-18T04:32:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r7gmo647GhXXtWWNK6g1vg4giT+iyvU77Q+MFUHX89/kmujEwq7bCggTcOivye8DQLHa0496/mH5ROfVHPiNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T23:40:41.221549Z"},"content_sha256":"fc9dc422a805d18c7db7cf320f9a43a46d25b5c7676cff25b4a9dc1bebe1e42c","schema_version":"1.0","event_id":"sha256:fc9dc422a805d18c7db7cf320f9a43a46d25b5c7676cff25b4a9dc1bebe1e42c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:QAHDKZL3RKY7CHUHC4WAJCRRMK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Coherent-state optical qudit cluster state generation and teleportation via homodyne detection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Hyunchul Nha, Jaewan Kim, Jonathan P. Dowling, Juhui Lee, Petr M. Anisimov, Se-Wan Ji","submitted_at":"2010-12-29T05:28:54Z","abstract_excerpt":"Defining a computational basis of pseudo-number states, we interpret a coherent state of large amplitude, $|\\alpha|\\gg\\frac{d}{2\\pi}$, as a qudit --- a $d$-level quantum system --- in a state that is an even superposition of $d$ pseudo-number states. A pair of such coherent-state qudits can be prepared in maximally entangled state by generalized Controlled-$Z$ operation that is based on cross-Kerr nonlinearity, which can be weak for large $d$. Hence, a coherent-state optical qudit cluster state can be prepared by repetitive application of the generalized Controlled-$Z$ operation to a set of co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.5872","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":"2026-05-18T04:32:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4coqdYoWd4a9hTFspMcnat1+83YOGbO8yikv8A0xXoxKydzEF6O9kXmIcwkaumvnfg3swLDMZl/j7k0jVVYbBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T23:40:41.222238Z"},"content_sha256":"a60a5aa6ebc3b62cb6285a3eba501a9ded49f4716ab2dbae31b213fde6116fed","schema_version":"1.0","event_id":"sha256:a60a5aa6ebc3b62cb6285a3eba501a9ded49f4716ab2dbae31b213fde6116fed"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QAHDKZL3RKY7CHUHC4WAJCRRMK/bundle.json","state_url":"https://pith.science/pith/QAHDKZL3RKY7CHUHC4WAJCRRMK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QAHDKZL3RKY7CHUHC4WAJCRRMK/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":"2026-06-10T23:40:41Z","links":{"resolver":"https://pith.science/pith/QAHDKZL3RKY7CHUHC4WAJCRRMK","bundle":"https://pith.science/pith/QAHDKZL3RKY7CHUHC4WAJCRRMK/bundle.json","state":"https://pith.science/pith/QAHDKZL3RKY7CHUHC4WAJCRRMK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QAHDKZL3RKY7CHUHC4WAJCRRMK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:QAHDKZL3RKY7CHUHC4WAJCRRMK","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":"0a37965f65aa1f819d4146df0d5bdc997f2f86a302e965d3d318f3d66629e44d","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-29T05:28:54Z","title_canon_sha256":"0474960ba94c2a9e7550e011a8a187546bfb4dd11f56692d472d614bcd5f214a"},"schema_version":"1.0","source":{"id":"1012.5872","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1012.5872","created_at":"2026-05-18T04:32:21Z"},{"alias_kind":"arxiv_version","alias_value":"1012.5872v1","created_at":"2026-05-18T04:32:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1012.5872","created_at":"2026-05-18T04:32:21Z"},{"alias_kind":"pith_short_12","alias_value":"QAHDKZL3RKY7","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QAHDKZL3RKY7CHUH","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QAHDKZL3","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:a60a5aa6ebc3b62cb6285a3eba501a9ded49f4716ab2dbae31b213fde6116fed","target":"graph","created_at":"2026-05-18T04:32:21Z","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":"Defining a computational basis of pseudo-number states, we interpret a coherent state of large amplitude, $|\\alpha|\\gg\\frac{d}{2\\pi}$, as a qudit --- a $d$-level quantum system --- in a state that is an even superposition of $d$ pseudo-number states. A pair of such coherent-state qudits can be prepared in maximally entangled state by generalized Controlled-$Z$ operation that is based on cross-Kerr nonlinearity, which can be weak for large $d$. Hence, a coherent-state optical qudit cluster state can be prepared by repetitive application of the generalized Controlled-$Z$ operation to a set of co","authors_text":"Hyunchul Nha, Jaewan Kim, Jonathan P. Dowling, Juhui Lee, Petr M. Anisimov, Se-Wan Ji","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-29T05:28:54Z","title":"Coherent-state optical qudit cluster state generation and teleportation via homodyne detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1012.5872","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:fc9dc422a805d18c7db7cf320f9a43a46d25b5c7676cff25b4a9dc1bebe1e42c","target":"record","created_at":"2026-05-18T04:32:21Z","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":"0a37965f65aa1f819d4146df0d5bdc997f2f86a302e965d3d318f3d66629e44d","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-12-29T05:28:54Z","title_canon_sha256":"0474960ba94c2a9e7550e011a8a187546bfb4dd11f56692d472d614bcd5f214a"},"schema_version":"1.0","source":{"id":"1012.5872","kind":"arxiv","version":1}},"canonical_sha256":"800e35657b8ab1f11e87172c048a31629bacee4ee74560e951808f76dd54994f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"800e35657b8ab1f11e87172c048a31629bacee4ee74560e951808f76dd54994f","first_computed_at":"2026-05-18T04:32:21.268191Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:32:21.268191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wS8ODYndcrDSxG4vrNyxSM+gan1dEXnVx+tSC7A/Qpe91GWGI2Mmmkhy7yyftRYuzEdhcuPrxBNxwrB8wuu9CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:32:21.268953Z","signed_message":"canonical_sha256_bytes"},"source_id":"1012.5872","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc9dc422a805d18c7db7cf320f9a43a46d25b5c7676cff25b4a9dc1bebe1e42c","sha256:a60a5aa6ebc3b62cb6285a3eba501a9ded49f4716ab2dbae31b213fde6116fed"],"state_sha256":"ab65a37d82efdfeaf029e6668a9db04ce6862e80ee857945e365fa8641da798c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oRUBR2zdM/sl9DowPVGadbvFquG7hmg8sPvnDOw18wXc8S2oDC672JUClFDwQTRXlTg8MfvRBkpmWrhl9KugAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T23:40:41.227028Z","bundle_sha256":"cfad89649293bc76d2390912446e33b33d8d0c2c3cbc0f267903243111c0eb2e"}}