{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:BWJGI4VBT4NYFD6WM7LN6WONDR","short_pith_number":"pith:BWJGI4VB","canonical_record":{"source":{"id":"1702.06242","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-02-21T02:28:26Z","cross_cats_sorted":[],"title_canon_sha256":"9afb60a0e89bfdd25ff865eebe1e8033c989c92707679b25ed186f7fb43e9706","abstract_canon_sha256":"57015c340005f64f86483ce53227d429aca1200d2317563ea01bc5be246e1437"},"schema_version":"1.0"},"canonical_sha256":"0d926472a19f1b828fd667d6df59cd1c6d897b28f2f683caf958faf26c225e52","source":{"kind":"arxiv","id":"1702.06242","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.06242","created_at":"2026-05-18T00:23:14Z"},{"alias_kind":"arxiv_version","alias_value":"1702.06242v2","created_at":"2026-05-18T00:23:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.06242","created_at":"2026-05-18T00:23:14Z"},{"alias_kind":"pith_short_12","alias_value":"BWJGI4VBT4NY","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BWJGI4VBT4NYFD6W","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BWJGI4VB","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:BWJGI4VBT4NYFD6WM7LN6WONDR","target":"record","payload":{"canonical_record":{"source":{"id":"1702.06242","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-02-21T02:28:26Z","cross_cats_sorted":[],"title_canon_sha256":"9afb60a0e89bfdd25ff865eebe1e8033c989c92707679b25ed186f7fb43e9706","abstract_canon_sha256":"57015c340005f64f86483ce53227d429aca1200d2317563ea01bc5be246e1437"},"schema_version":"1.0"},"canonical_sha256":"0d926472a19f1b828fd667d6df59cd1c6d897b28f2f683caf958faf26c225e52","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:23:14.345878Z","signature_b64":"xineXjW1U7/Dz+tXIw9O8WJ8hREymC6juJmuN7mlgZ0pnN4fnYW5fWKBYbbV/xo0MeKYnH5HO8wEOPXG4efSAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d926472a19f1b828fd667d6df59cd1c6d897b28f2f683caf958faf26c225e52","last_reissued_at":"2026-05-18T00:23:14.345096Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:23:14.345096Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.06242","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":"2026-05-18T00:23:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hZoeldPtIH5oxJV7WGKsaEq3VlWI+2w0SY3+epILpYiEhTR+87I6agIfyB3sz3/7YLe8IjJt7Oi1D3qVZk49AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T14:41:23.562906Z"},"content_sha256":"24529a85838ca0a9fa4617271404f7d3f3d816979271084a905dfb989e58cc42","schema_version":"1.0","event_id":"sha256:24529a85838ca0a9fa4617271404f7d3f3d816979271084a905dfb989e58cc42"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:BWJGI4VBT4NYFD6WM7LN6WONDR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Projective measurement onto arbitrary superposition of coherent state bases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Kazuhiro Ema, Kentaro Wakui, Masahide Sasaki, Masahiro Takeoka, Mikio Fujiwara, Shuro Izumi","submitted_at":"2017-02-21T02:28:26Z","abstract_excerpt":"One of the peculiar features in quantum mechanics is that a superposition of macroscopically distinct states can exits. In optical system, this is highlighted by a superposition of coherent states (SCS), i.e. a superposition of classical states. Recently this highly nontrivial quantum state and its variant have been demonstrated experimentally. Here we demonstrate the superposition of coherent states in quantum measurement which is also a key concept in quantum mechanics. More precisely, we propose and implement a projection measurement onto the arbitrary superposition of the SCS bases in opti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.06242","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":"2026-05-18T00:23:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PcIcz/b5dBTkhA2uN3LRqcGm3XhL5PT3lSHzb7pltcCfzOneYB92IRIXIj8cVEG9mcaO4dJRJZcFtOeepMK3DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T14:41:23.563247Z"},"content_sha256":"588784f4d163c1ea3f615987bc66499106cee3d41fea5f2df1e02e43a6946a6c","schema_version":"1.0","event_id":"sha256:588784f4d163c1ea3f615987bc66499106cee3d41fea5f2df1e02e43a6946a6c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BWJGI4VBT4NYFD6WM7LN6WONDR/bundle.json","state_url":"https://pith.science/pith/BWJGI4VBT4NYFD6WM7LN6WONDR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BWJGI4VBT4NYFD6WM7LN6WONDR/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":"2026-06-24T14:41:23Z","links":{"resolver":"https://pith.science/pith/BWJGI4VBT4NYFD6WM7LN6WONDR","bundle":"https://pith.science/pith/BWJGI4VBT4NYFD6WM7LN6WONDR/bundle.json","state":"https://pith.science/pith/BWJGI4VBT4NYFD6WM7LN6WONDR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BWJGI4VBT4NYFD6WM7LN6WONDR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BWJGI4VBT4NYFD6WM7LN6WONDR","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":"57015c340005f64f86483ce53227d429aca1200d2317563ea01bc5be246e1437","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-02-21T02:28:26Z","title_canon_sha256":"9afb60a0e89bfdd25ff865eebe1e8033c989c92707679b25ed186f7fb43e9706"},"schema_version":"1.0","source":{"id":"1702.06242","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.06242","created_at":"2026-05-18T00:23:14Z"},{"alias_kind":"arxiv_version","alias_value":"1702.06242v2","created_at":"2026-05-18T00:23:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.06242","created_at":"2026-05-18T00:23:14Z"},{"alias_kind":"pith_short_12","alias_value":"BWJGI4VBT4NY","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BWJGI4VBT4NYFD6W","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BWJGI4VB","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:588784f4d163c1ea3f615987bc66499106cee3d41fea5f2df1e02e43a6946a6c","target":"graph","created_at":"2026-05-18T00:23:14Z","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":"One of the peculiar features in quantum mechanics is that a superposition of macroscopically distinct states can exits. In optical system, this is highlighted by a superposition of coherent states (SCS), i.e. a superposition of classical states. Recently this highly nontrivial quantum state and its variant have been demonstrated experimentally. Here we demonstrate the superposition of coherent states in quantum measurement which is also a key concept in quantum mechanics. More precisely, we propose and implement a projection measurement onto the arbitrary superposition of the SCS bases in opti","authors_text":"Kazuhiro Ema, Kentaro Wakui, Masahide Sasaki, Masahiro Takeoka, Mikio Fujiwara, Shuro Izumi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-02-21T02:28:26Z","title":"Projective measurement onto arbitrary superposition of coherent state bases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.06242","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":"sha256:24529a85838ca0a9fa4617271404f7d3f3d816979271084a905dfb989e58cc42","target":"record","created_at":"2026-05-18T00:23:14Z","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":"57015c340005f64f86483ce53227d429aca1200d2317563ea01bc5be246e1437","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-02-21T02:28:26Z","title_canon_sha256":"9afb60a0e89bfdd25ff865eebe1e8033c989c92707679b25ed186f7fb43e9706"},"schema_version":"1.0","source":{"id":"1702.06242","kind":"arxiv","version":2}},"canonical_sha256":"0d926472a19f1b828fd667d6df59cd1c6d897b28f2f683caf958faf26c225e52","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d926472a19f1b828fd667d6df59cd1c6d897b28f2f683caf958faf26c225e52","first_computed_at":"2026-05-18T00:23:14.345096Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:14.345096Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xineXjW1U7/Dz+tXIw9O8WJ8hREymC6juJmuN7mlgZ0pnN4fnYW5fWKBYbbV/xo0MeKYnH5HO8wEOPXG4efSAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:14.345878Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.06242","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24529a85838ca0a9fa4617271404f7d3f3d816979271084a905dfb989e58cc42","sha256:588784f4d163c1ea3f615987bc66499106cee3d41fea5f2df1e02e43a6946a6c"],"state_sha256":"0632751a6920f0addf82939122601dece6aeb58fa12f73ec3f78ffa6c1d892ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mHAwua2sXeW9j0bOs4RNPFBkCDyg7T5BvxSuP85FXBxrub92JzdA0ydQjIGWuBkzus/dZWdWfjEEfBUx/lw9Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T14:41:23.565286Z","bundle_sha256":"240a92959f0f699d161d673c8cd19b4244521fce753cadc765990a16f8e0ad3d"}}