{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:KKSS62CIE2TSKIOG6D5TFE5MEJ","short_pith_number":"pith:KKSS62CI","canonical_record":{"source":{"id":"2506.00118","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-30T18:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"713ba4880074f4e56bccc6609b8dd0d09cada887560f3cdeb2486127b24b6af4","abstract_canon_sha256":"c9ac19f06c8e9ea11f54dc9d3696d69b3585e62fd1fd501a092ff08ee1bbfaa2"},"schema_version":"1.0"},"canonical_sha256":"52a52f684826a72521c6f0fb3293ac2272e9fbec9858fb710d5eee6d29daa999","source":{"kind":"arxiv","id":"2506.00118","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.00118","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"arxiv_version","alias_value":"2506.00118v2","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.00118","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"pith_short_12","alias_value":"KKSS62CIE2TS","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"pith_short_16","alias_value":"KKSS62CIE2TSKIOG","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"pith_short_8","alias_value":"KKSS62CI","created_at":"2026-07-05T12:03:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:KKSS62CIE2TSKIOG6D5TFE5MEJ","target":"record","payload":{"canonical_record":{"source":{"id":"2506.00118","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-30T18:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"713ba4880074f4e56bccc6609b8dd0d09cada887560f3cdeb2486127b24b6af4","abstract_canon_sha256":"c9ac19f06c8e9ea11f54dc9d3696d69b3585e62fd1fd501a092ff08ee1bbfaa2"},"schema_version":"1.0"},"canonical_sha256":"52a52f684826a72521c6f0fb3293ac2272e9fbec9858fb710d5eee6d29daa999","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:03:26.945899Z","signature_b64":"/z7gGT390G4mNqBIGyFHEsjv+4APd8PT3vzZl6+kVnx58bVWO6kPnKvlc+SbeoyNBBxj3sR8iVee01lsqug2CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52a52f684826a72521c6f0fb3293ac2272e9fbec9858fb710d5eee6d29daa999","last_reissued_at":"2026-07-05T12:03:26.945364Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:03:26.945364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.00118","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":"2026-07-05T12:03:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+oGGPqnIH8NNFBfteXklHU5H7KigR1EESflycYQOEUx02KOm6OoKgu36FAlEb1SlyWBTLPl+dyDyctEHU7sfDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T13:15:50.932819Z"},"content_sha256":"1d675096102230f47681d9b16b48f57310bd24bc913fb5259f583785e5a31b0a","schema_version":"1.0","event_id":"sha256:1d675096102230f47681d9b16b48f57310bd24bc913fb5259f583785e5a31b0a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:KKSS62CIE2TSKIOG6D5TFE5MEJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mid-circuit measurement as an algorithmic primitive","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Antoine Lemelin, Camille Coti, Christophe Pere, Olivier Landon-Cardinal","submitted_at":"2025-05-30T18:00:03Z","abstract_excerpt":"We explore the usefulness of mid-circuit measurements to enhance quantum algorithmics. Specifically, we assess how quantum phase estimation (QPE) and mid-circuit measurements can improve the performance of variational quantum algorithms. Our focus is on the single-qubit version of QPE namely, the Hadamard test applied to the Quantum Approximate Optimization Algorithm (QAOA) ansatz. We demonstrate that a mid-circuit measurement acts as a low-energy filter when the desired outcome is obtained. When the other outcome is measured we heuristically rely on the mixer to repopulate the low energy stat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.00118","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2506.00118/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":"2026-07-05T12:03:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"510BhVFwsEmqGQbfNuQHJH9zTmFZbHfpP+jPUo/++xkk6JpZnZmYWTZjaY+I0oY7A6sW5pG6qK8DabEaPpAlAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T13:15:50.933416Z"},"content_sha256":"9bf920bd349182725a605bbbf52753c0b75bb789fe8997cae5ad2a56257ff327","schema_version":"1.0","event_id":"sha256:9bf920bd349182725a605bbbf52753c0b75bb789fe8997cae5ad2a56257ff327"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KKSS62CIE2TSKIOG6D5TFE5MEJ/bundle.json","state_url":"https://pith.science/pith/KKSS62CIE2TSKIOG6D5TFE5MEJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KKSS62CIE2TSKIOG6D5TFE5MEJ/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":"2026-08-08T13:15:50Z","links":{"resolver":"https://pith.science/pith/KKSS62CIE2TSKIOG6D5TFE5MEJ","bundle":"https://pith.science/pith/KKSS62CIE2TSKIOG6D5TFE5MEJ/bundle.json","state":"https://pith.science/pith/KKSS62CIE2TSKIOG6D5TFE5MEJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KKSS62CIE2TSKIOG6D5TFE5MEJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:KKSS62CIE2TSKIOG6D5TFE5MEJ","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":"c9ac19f06c8e9ea11f54dc9d3696d69b3585e62fd1fd501a092ff08ee1bbfaa2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-30T18:00:03Z","title_canon_sha256":"713ba4880074f4e56bccc6609b8dd0d09cada887560f3cdeb2486127b24b6af4"},"schema_version":"1.0","source":{"id":"2506.00118","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.00118","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"arxiv_version","alias_value":"2506.00118v2","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.00118","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"pith_short_12","alias_value":"KKSS62CIE2TS","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"pith_short_16","alias_value":"KKSS62CIE2TSKIOG","created_at":"2026-07-05T12:03:26Z"},{"alias_kind":"pith_short_8","alias_value":"KKSS62CI","created_at":"2026-07-05T12:03:26Z"}],"graph_snapshots":[{"event_id":"sha256:9bf920bd349182725a605bbbf52753c0b75bb789fe8997cae5ad2a56257ff327","target":"graph","created_at":"2026-07-05T12:03:26Z","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/2506.00118/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We explore the usefulness of mid-circuit measurements to enhance quantum algorithmics. Specifically, we assess how quantum phase estimation (QPE) and mid-circuit measurements can improve the performance of variational quantum algorithms. Our focus is on the single-qubit version of QPE namely, the Hadamard test applied to the Quantum Approximate Optimization Algorithm (QAOA) ansatz. We demonstrate that a mid-circuit measurement acts as a low-energy filter when the desired outcome is obtained. When the other outcome is measured we heuristically rely on the mixer to repopulate the low energy stat","authors_text":"Antoine Lemelin, Camille Coti, Christophe Pere, Olivier Landon-Cardinal","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-30T18:00:03Z","title":"Mid-circuit measurement as an algorithmic primitive"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.00118","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":"sha256:1d675096102230f47681d9b16b48f57310bd24bc913fb5259f583785e5a31b0a","target":"record","created_at":"2026-07-05T12:03:26Z","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":"c9ac19f06c8e9ea11f54dc9d3696d69b3585e62fd1fd501a092ff08ee1bbfaa2","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-05-30T18:00:03Z","title_canon_sha256":"713ba4880074f4e56bccc6609b8dd0d09cada887560f3cdeb2486127b24b6af4"},"schema_version":"1.0","source":{"id":"2506.00118","kind":"arxiv","version":2}},"canonical_sha256":"52a52f684826a72521c6f0fb3293ac2272e9fbec9858fb710d5eee6d29daa999","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52a52f684826a72521c6f0fb3293ac2272e9fbec9858fb710d5eee6d29daa999","first_computed_at":"2026-07-05T12:03:26.945364Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:03:26.945364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/z7gGT390G4mNqBIGyFHEsjv+4APd8PT3vzZl6+kVnx58bVWO6kPnKvlc+SbeoyNBBxj3sR8iVee01lsqug2CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T12:03:26.945899Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.00118","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d675096102230f47681d9b16b48f57310bd24bc913fb5259f583785e5a31b0a","sha256:9bf920bd349182725a605bbbf52753c0b75bb789fe8997cae5ad2a56257ff327"],"state_sha256":"f25d9a8e011656358ddf786644c18c5f9f93cc18acf171fa8811481c1e663a94"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c0ee+Cw3/EdcIbuL6+Tp8bOmmst1fWyke24G8E1t37ShpDap6lEKQu9i8157GrSYs1CWNCJ/DpcDG6sIzoyGCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T13:15:50.937209Z","bundle_sha256":"ae6cf61f651d22625d0692e8cdd823c1f81a465e9c9792d59f3be18a6b8f7802"}}