{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:P2U2V6O7BBSGV3YEDOMRB5EPWX","short_pith_number":"pith:P2U2V6O7","canonical_record":{"source":{"id":"2007.06539","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2020-07-13T17:46:19Z","cross_cats_sorted":["cs.DS"],"title_canon_sha256":"d6efa21b227806f05c358cc09f2fa9652f24db20e1749396e289542ab2b32c8f","abstract_canon_sha256":"96cd5debed782103b07b89eb174ff2b2737547c203270289481544cd1d560b3b"},"schema_version":"1.0"},"canonical_sha256":"7ea9aaf9df08646aef041b9910f48fb5f44ae8ae6acad5090ee337d8a694ff4d","source":{"kind":"arxiv","id":"2007.06539","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.06539","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"arxiv_version","alias_value":"2007.06539v3","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.06539","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"pith_short_12","alias_value":"P2U2V6O7BBSG","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"pith_short_16","alias_value":"P2U2V6O7BBSGV3YE","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"pith_short_8","alias_value":"P2U2V6O7","created_at":"2026-07-05T02:07:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:P2U2V6O7BBSGV3YEDOMRB5EPWX","target":"record","payload":{"canonical_record":{"source":{"id":"2007.06539","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2020-07-13T17:46:19Z","cross_cats_sorted":["cs.DS"],"title_canon_sha256":"d6efa21b227806f05c358cc09f2fa9652f24db20e1749396e289542ab2b32c8f","abstract_canon_sha256":"96cd5debed782103b07b89eb174ff2b2737547c203270289481544cd1d560b3b"},"schema_version":"1.0"},"canonical_sha256":"7ea9aaf9df08646aef041b9910f48fb5f44ae8ae6acad5090ee337d8a694ff4d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:07:48.221995Z","signature_b64":"lNmasji5mCFuHZT4xW5dwbYrYsQRTk+3HfWx1clogc0bh6JSMlm3Fw/O5K3Semg2232k2WOkTFwzxozx5w00Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7ea9aaf9df08646aef041b9910f48fb5f44ae8ae6acad5090ee337d8a694ff4d","last_reissued_at":"2026-07-05T02:07:48.221445Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:07:48.221445Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.06539","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:07:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zYLGVcMqqovHfU7aAUguGzhGeBIe8y/HmCaKIbkRl73y3op7Fy1NBNi/RtRYTEqaxzqXupwfhmhD0rlTTiw5Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T16:23:28.049295Z"},"content_sha256":"a4bfbd3c97208b5ec9c90df974c9fa097da73463299c63a67ec01f7fac79e534","schema_version":"1.0","event_id":"sha256:a4bfbd3c97208b5ec9c90df974c9fa097da73463299c63a67ec01f7fac79e534"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:P2U2V6O7BBSGV3YEDOMRB5EPWX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Benchmarking 16-element quantum search algorithms on superconducting quantum processors","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.DS"],"primary_cat":"quant-ph","authors_text":"Jan Gwinner, {\\L}ukasz Czerwi\\'nski, Marcin Bria\\'nski, Vladyslav Hlembotskyi, Wojciech Burkot","submitted_at":"2020-07-13T17:46:19Z","abstract_excerpt":"We present experimental results on running 4-qubit unstructured search on IBM quantum processors. Our best attempt attained probability of success around 24.5%. We try several algorithms and use the most recent developments in quantum search to reduce the number of entangling gates that are currently considered the main source of errors in quantum computations. Comparing theoretical expectations of an algorithm performance with the actual data, we explore the hardware limits, showing sharp, phase-transition-like degradation of performance on quantum processors. We conclude that it is extremely"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.06539","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.06539/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:07:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1EwUwWEuPPJDetGPGq3RMwiTH32f1o1z9g1NqeVYZvAxmJSoa34ulGVmOdWAX9Vp1JB6w9BQwLCu//WH0BKdCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T16:23:28.049841Z"},"content_sha256":"a20a039b02cfeac5bf787a2279a0a81a8f1366bcf2e157ebe5cfab9b91400b62","schema_version":"1.0","event_id":"sha256:a20a039b02cfeac5bf787a2279a0a81a8f1366bcf2e157ebe5cfab9b91400b62"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P2U2V6O7BBSGV3YEDOMRB5EPWX/bundle.json","state_url":"https://pith.science/pith/P2U2V6O7BBSGV3YEDOMRB5EPWX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P2U2V6O7BBSGV3YEDOMRB5EPWX/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":"2026-08-08T16:23:28Z","links":{"resolver":"https://pith.science/pith/P2U2V6O7BBSGV3YEDOMRB5EPWX","bundle":"https://pith.science/pith/P2U2V6O7BBSGV3YEDOMRB5EPWX/bundle.json","state":"https://pith.science/pith/P2U2V6O7BBSGV3YEDOMRB5EPWX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P2U2V6O7BBSGV3YEDOMRB5EPWX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:P2U2V6O7BBSGV3YEDOMRB5EPWX","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":"96cd5debed782103b07b89eb174ff2b2737547c203270289481544cd1d560b3b","cross_cats_sorted":["cs.DS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2020-07-13T17:46:19Z","title_canon_sha256":"d6efa21b227806f05c358cc09f2fa9652f24db20e1749396e289542ab2b32c8f"},"schema_version":"1.0","source":{"id":"2007.06539","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.06539","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"arxiv_version","alias_value":"2007.06539v3","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.06539","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"pith_short_12","alias_value":"P2U2V6O7BBSG","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"pith_short_16","alias_value":"P2U2V6O7BBSGV3YE","created_at":"2026-07-05T02:07:48Z"},{"alias_kind":"pith_short_8","alias_value":"P2U2V6O7","created_at":"2026-07-05T02:07:48Z"}],"graph_snapshots":[{"event_id":"sha256:a20a039b02cfeac5bf787a2279a0a81a8f1366bcf2e157ebe5cfab9b91400b62","target":"graph","created_at":"2026-07-05T02:07:48Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2007.06539/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present experimental results on running 4-qubit unstructured search on IBM quantum processors. Our best attempt attained probability of success around 24.5%. We try several algorithms and use the most recent developments in quantum search to reduce the number of entangling gates that are currently considered the main source of errors in quantum computations. Comparing theoretical expectations of an algorithm performance with the actual data, we explore the hardware limits, showing sharp, phase-transition-like degradation of performance on quantum processors. We conclude that it is extremely","authors_text":"Jan Gwinner, {\\L}ukasz Czerwi\\'nski, Marcin Bria\\'nski, Vladyslav Hlembotskyi, Wojciech Burkot","cross_cats":["cs.DS"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2020-07-13T17:46:19Z","title":"Benchmarking 16-element quantum search algorithms on superconducting quantum processors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.06539","kind":"arxiv","version":3},"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:a4bfbd3c97208b5ec9c90df974c9fa097da73463299c63a67ec01f7fac79e534","target":"record","created_at":"2026-07-05T02:07:48Z","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":"96cd5debed782103b07b89eb174ff2b2737547c203270289481544cd1d560b3b","cross_cats_sorted":["cs.DS"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2020-07-13T17:46:19Z","title_canon_sha256":"d6efa21b227806f05c358cc09f2fa9652f24db20e1749396e289542ab2b32c8f"},"schema_version":"1.0","source":{"id":"2007.06539","kind":"arxiv","version":3}},"canonical_sha256":"7ea9aaf9df08646aef041b9910f48fb5f44ae8ae6acad5090ee337d8a694ff4d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7ea9aaf9df08646aef041b9910f48fb5f44ae8ae6acad5090ee337d8a694ff4d","first_computed_at":"2026-07-05T02:07:48.221445Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:07:48.221445Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lNmasji5mCFuHZT4xW5dwbYrYsQRTk+3HfWx1clogc0bh6JSMlm3Fw/O5K3Semg2232k2WOkTFwzxozx5w00Dg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:07:48.221995Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.06539","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a4bfbd3c97208b5ec9c90df974c9fa097da73463299c63a67ec01f7fac79e534","sha256:a20a039b02cfeac5bf787a2279a0a81a8f1366bcf2e157ebe5cfab9b91400b62"],"state_sha256":"3e4e3754bfaa4e51012bdae92235a0933e5dfccde17a1f210b79197bff2c8f9d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SkN5NZrnbSq9lHFtxV3OfjX56v5caQpz/VMr3kHVpkLo3v6U6egjwlBr9bBJe01BkdwW6W1KAGFdsD9fix1VDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T16:23:28.055901Z","bundle_sha256":"93707065ae62df24fa4b6ee3a3f89735d3252ec7bec4fd6c54b51dc6cfe1e912"}}