{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:YISD4VGWR4KAZW7HZ7Q5IVF575","short_pith_number":"pith:YISD4VGW","canonical_record":{"source":{"id":"quant-ph/0503205","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2005-03-28T15:41:21Z","cross_cats_sorted":[],"title_canon_sha256":"addbd9094485be47249558265d1a2936759ee78804b0a07f17799ebd9c9f0f9e","abstract_canon_sha256":"4691a3c6bfbc56fc4bdfa178aab427b8f0e3c7cc25cf1076e9ea0f4ca8a61dc6"},"schema_version":"1.0"},"canonical_sha256":"c2243e54d68f140cdbe7cfe1d454bdff4b0ae9dfd44bd561e73cac35a09a703b","source":{"kind":"arxiv","id":"quant-ph/0503205","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0503205","created_at":"2026-05-18T03:24:19Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0503205v1","created_at":"2026-05-18T03:24:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0503205","created_at":"2026-05-18T03:24:19Z"},{"alias_kind":"pith_short_12","alias_value":"YISD4VGWR4KA","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"YISD4VGWR4KAZW7H","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"YISD4VGW","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:YISD4VGWR4KAZW7HZ7Q5IVF575","target":"record","payload":{"canonical_record":{"source":{"id":"quant-ph/0503205","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"quant-ph","submitted_at":"2005-03-28T15:41:21Z","cross_cats_sorted":[],"title_canon_sha256":"addbd9094485be47249558265d1a2936759ee78804b0a07f17799ebd9c9f0f9e","abstract_canon_sha256":"4691a3c6bfbc56fc4bdfa178aab427b8f0e3c7cc25cf1076e9ea0f4ca8a61dc6"},"schema_version":"1.0"},"canonical_sha256":"c2243e54d68f140cdbe7cfe1d454bdff4b0ae9dfd44bd561e73cac35a09a703b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:19.875709Z","signature_b64":"6o22UgawE+TIND/CGF27Pf4xTTMk7ROzGG15vsSJdJ25U6eT5TqufmmBCp3hvxHpKUEna46EAWqQqDXVKe9TAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2243e54d68f140cdbe7cfe1d454bdff4b0ae9dfd44bd561e73cac35a09a703b","last_reissued_at":"2026-05-18T03:24:19.874974Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:19.874974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"quant-ph/0503205","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":"2026-05-18T03:24:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/3ske0AHooD6A3iCZTzax9WOEcFKaUsMFeOcqBer1qIEW6+jKTYPrI6wwQRzKlxhuLDVR7UrIbOB/PYXt1XQAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:05:50.770794Z"},"content_sha256":"c9193a100a689379bd7c115d0b9689b2be05effe9299db6416781fae36f36bde","schema_version":"1.0","event_id":"sha256:c9193a100a689379bd7c115d0b9689b2be05effe9299db6416781fae36f36bde"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:YISD4VGWR4KAZW7HZ7Q5IVF575","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A different kind of quantum search","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Lov K. Grover (Bell Labs, Lucent)","submitted_at":"2005-03-28T15:41:21Z","abstract_excerpt":"The quantum search algorithm consists of an alternating sequence of selective inversions and diffusion type operations, as a result of which it can find a target state in an unsorted database of size N in only sqrt(N) queries. This paper shows that by replacing the selective inversions by selective phase shifts of Pi/3, the algorithm gets transformed into something similar to a classical search algorithm. Just like classical search algorithms this algorithm has a fixed point in state-space toward which it preferentially converges. In contrast, the original quantum search algorithm moves unifor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0503205","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":"2026-05-18T03:24:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+RjGcd+TXqiz5mHCOj1FbZRb17MTl1z4DgPOIX+DF2V8brq6txAz0iLSg4J9/NMj3WNvreDAwU4yDjtaIHEoBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:05:50.771460Z"},"content_sha256":"eab0d469e64368920e0cb77be7e1c3c1b061888f640febd077bcf737cf4ca144","schema_version":"1.0","event_id":"sha256:eab0d469e64368920e0cb77be7e1c3c1b061888f640febd077bcf737cf4ca144"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YISD4VGWR4KAZW7HZ7Q5IVF575/bundle.json","state_url":"https://pith.science/pith/YISD4VGWR4KAZW7HZ7Q5IVF575/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YISD4VGWR4KAZW7HZ7Q5IVF575/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":"2026-05-25T22:05:50Z","links":{"resolver":"https://pith.science/pith/YISD4VGWR4KAZW7HZ7Q5IVF575","bundle":"https://pith.science/pith/YISD4VGWR4KAZW7HZ7Q5IVF575/bundle.json","state":"https://pith.science/pith/YISD4VGWR4KAZW7HZ7Q5IVF575/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YISD4VGWR4KAZW7HZ7Q5IVF575/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:YISD4VGWR4KAZW7HZ7Q5IVF575","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":"4691a3c6bfbc56fc4bdfa178aab427b8f0e3c7cc25cf1076e9ea0f4ca8a61dc6","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2005-03-28T15:41:21Z","title_canon_sha256":"addbd9094485be47249558265d1a2936759ee78804b0a07f17799ebd9c9f0f9e"},"schema_version":"1.0","source":{"id":"quant-ph/0503205","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"quant-ph/0503205","created_at":"2026-05-18T03:24:19Z"},{"alias_kind":"arxiv_version","alias_value":"quant-ph/0503205v1","created_at":"2026-05-18T03:24:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.quant-ph/0503205","created_at":"2026-05-18T03:24:19Z"},{"alias_kind":"pith_short_12","alias_value":"YISD4VGWR4KA","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"YISD4VGWR4KAZW7H","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"YISD4VGW","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:eab0d469e64368920e0cb77be7e1c3c1b061888f640febd077bcf737cf4ca144","target":"graph","created_at":"2026-05-18T03:24:19Z","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":"The quantum search algorithm consists of an alternating sequence of selective inversions and diffusion type operations, as a result of which it can find a target state in an unsorted database of size N in only sqrt(N) queries. This paper shows that by replacing the selective inversions by selective phase shifts of Pi/3, the algorithm gets transformed into something similar to a classical search algorithm. Just like classical search algorithms this algorithm has a fixed point in state-space toward which it preferentially converges. In contrast, the original quantum search algorithm moves unifor","authors_text":"Lov K. Grover (Bell Labs, Lucent)","cross_cats":[],"headline":"","license":"","primary_cat":"quant-ph","submitted_at":"2005-03-28T15:41:21Z","title":"A different kind of quantum search"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0503205","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:c9193a100a689379bd7c115d0b9689b2be05effe9299db6416781fae36f36bde","target":"record","created_at":"2026-05-18T03:24:19Z","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":"4691a3c6bfbc56fc4bdfa178aab427b8f0e3c7cc25cf1076e9ea0f4ca8a61dc6","cross_cats_sorted":[],"license":"","primary_cat":"quant-ph","submitted_at":"2005-03-28T15:41:21Z","title_canon_sha256":"addbd9094485be47249558265d1a2936759ee78804b0a07f17799ebd9c9f0f9e"},"schema_version":"1.0","source":{"id":"quant-ph/0503205","kind":"arxiv","version":1}},"canonical_sha256":"c2243e54d68f140cdbe7cfe1d454bdff4b0ae9dfd44bd561e73cac35a09a703b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2243e54d68f140cdbe7cfe1d454bdff4b0ae9dfd44bd561e73cac35a09a703b","first_computed_at":"2026-05-18T03:24:19.874974Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:19.874974Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6o22UgawE+TIND/CGF27Pf4xTTMk7ROzGG15vsSJdJ25U6eT5TqufmmBCp3hvxHpKUEna46EAWqQqDXVKe9TAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:19.875709Z","signed_message":"canonical_sha256_bytes"},"source_id":"quant-ph/0503205","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c9193a100a689379bd7c115d0b9689b2be05effe9299db6416781fae36f36bde","sha256:eab0d469e64368920e0cb77be7e1c3c1b061888f640febd077bcf737cf4ca144"],"state_sha256":"a0c4ede2489afb168e38b1055a138ae3c08f861880fab1c3f529d693a5a373c4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HJCii7cV5tfnzQ9XHbHrZzexJu0bmwQD0/KHFHKLULl1c5tXbJ1rCsbVQtCvPRlHfHpQEhpyLkD46akixcLQBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:05:50.774781Z","bundle_sha256":"5b2428550c5508238f074dbe033dd499ff1c1a38953fedd416ab76d86c149d0d"}}