{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:FFXQTGQWKFYJY3FTPJSNPL2QJ7","short_pith_number":"pith:FFXQTGQW","canonical_record":{"source":{"id":"2402.19230","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-29T15:04:34Z","cross_cats_sorted":["math-ph","math.MP"],"title_canon_sha256":"264cf26a0bafa067f3ee679175c023ec9e0c348d24cd9f632abfb21ded8305d7","abstract_canon_sha256":"422acef7f36db284cd7d66f9d6b8b0da4aa26f3f603936d78f16d285c34f2068"},"schema_version":"1.0"},"canonical_sha256":"296f099a1651709c6cb37a64d7af504fde9fe9859b86925a6447ae36cd4b7221","source":{"kind":"arxiv","id":"2402.19230","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.19230","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"arxiv_version","alias_value":"2402.19230v3","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.19230","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"pith_short_12","alias_value":"FFXQTGQWKFYJ","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"pith_short_16","alias_value":"FFXQTGQWKFYJY3FT","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"pith_short_8","alias_value":"FFXQTGQW","created_at":"2026-07-05T11:40:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:FFXQTGQWKFYJY3FTPJSNPL2QJ7","target":"record","payload":{"canonical_record":{"source":{"id":"2402.19230","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-29T15:04:34Z","cross_cats_sorted":["math-ph","math.MP"],"title_canon_sha256":"264cf26a0bafa067f3ee679175c023ec9e0c348d24cd9f632abfb21ded8305d7","abstract_canon_sha256":"422acef7f36db284cd7d66f9d6b8b0da4aa26f3f603936d78f16d285c34f2068"},"schema_version":"1.0"},"canonical_sha256":"296f099a1651709c6cb37a64d7af504fde9fe9859b86925a6447ae36cd4b7221","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:40:47.832730Z","signature_b64":"jRJIDAdAUSUdJ0hwJ5INi9SX5BzqROZUHqNzDOwUhYREdXn41UInTBJ1v0sKHFu7LhvMerhw47oK6xtL4RliBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"296f099a1651709c6cb37a64d7af504fde9fe9859b86925a6447ae36cd4b7221","last_reissued_at":"2026-07-05T11:40:47.832191Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:40:47.832191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.19230","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":"2026-07-05T11:40:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N/zXEvuxtqOBFRi/64IEEsuSBiDp3uJSTv/Mx4qY2C120msdpKzVINFV8y3LnNC9SCUqmlf0Bk9PIHmZq9o3CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T21:08:46.098649Z"},"content_sha256":"499d6c09ea8c71a4afbe293006f706e1f1a370cfff057b0a4e1dc29c8efe3d48","schema_version":"1.0","event_id":"sha256:499d6c09ea8c71a4afbe293006f706e1f1a370cfff057b0a4e1dc29c8efe3d48"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:FFXQTGQWKFYJY3FTPJSNPL2QJ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Simple and Efficient Joint Measurement Strategy for Estimating Fermionic Observables and Hamiltonians","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math-ph","math.MP"],"primary_cat":"quant-ph","authors_text":"Daniel McNulty, Joanna Majsak, Micha{\\l} Oszmaniec","submitted_at":"2024-02-29T15:04:34Z","abstract_excerpt":"We propose a simple scheme to estimate fermionic observables and Hamiltonians relevant in quantum chemistry and correlated fermionic systems. Our approach is based on implementing a measurement that jointly measures noisy versions of any product of two or four Majorana operators in an $N$ mode fermionic system. To realize our measurement we use: (i) a randomization over a set of unitaries that realize products of Majorana fermion operators; (ii) a unitary, sampled at random from a constant-size set of suitably chosen fermionic Gaussian unitaries; (iii) a measurement of fermionic occupation num"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.19230","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/2402.19230/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":"2026-07-05T11:40:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"854Q0ZAuS2yNNEEzf2DqFdW0eS4wy8ARDNVi8gIhX6gX6U0nX+Pgu1kIYKT6LO28qnkiGBsUnh4MTztIETbOAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T21:08:46.099313Z"},"content_sha256":"8f7e448e823526b8dc45aad16a2fad92559c02bf211f3526d56a6a2681391ccf","schema_version":"1.0","event_id":"sha256:8f7e448e823526b8dc45aad16a2fad92559c02bf211f3526d56a6a2681391ccf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FFXQTGQWKFYJY3FTPJSNPL2QJ7/bundle.json","state_url":"https://pith.science/pith/FFXQTGQWKFYJY3FTPJSNPL2QJ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FFXQTGQWKFYJY3FTPJSNPL2QJ7/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":"2026-08-11T21:08:46Z","links":{"resolver":"https://pith.science/pith/FFXQTGQWKFYJY3FTPJSNPL2QJ7","bundle":"https://pith.science/pith/FFXQTGQWKFYJY3FTPJSNPL2QJ7/bundle.json","state":"https://pith.science/pith/FFXQTGQWKFYJY3FTPJSNPL2QJ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FFXQTGQWKFYJY3FTPJSNPL2QJ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:FFXQTGQWKFYJY3FTPJSNPL2QJ7","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":"422acef7f36db284cd7d66f9d6b8b0da4aa26f3f603936d78f16d285c34f2068","cross_cats_sorted":["math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-29T15:04:34Z","title_canon_sha256":"264cf26a0bafa067f3ee679175c023ec9e0c348d24cd9f632abfb21ded8305d7"},"schema_version":"1.0","source":{"id":"2402.19230","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.19230","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"arxiv_version","alias_value":"2402.19230v3","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.19230","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"pith_short_12","alias_value":"FFXQTGQWKFYJ","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"pith_short_16","alias_value":"FFXQTGQWKFYJY3FT","created_at":"2026-07-05T11:40:47Z"},{"alias_kind":"pith_short_8","alias_value":"FFXQTGQW","created_at":"2026-07-05T11:40:47Z"}],"graph_snapshots":[{"event_id":"sha256:8f7e448e823526b8dc45aad16a2fad92559c02bf211f3526d56a6a2681391ccf","target":"graph","created_at":"2026-07-05T11:40:47Z","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/2402.19230/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose a simple scheme to estimate fermionic observables and Hamiltonians relevant in quantum chemistry and correlated fermionic systems. Our approach is based on implementing a measurement that jointly measures noisy versions of any product of two or four Majorana operators in an $N$ mode fermionic system. To realize our measurement we use: (i) a randomization over a set of unitaries that realize products of Majorana fermion operators; (ii) a unitary, sampled at random from a constant-size set of suitably chosen fermionic Gaussian unitaries; (iii) a measurement of fermionic occupation num","authors_text":"Daniel McNulty, Joanna Majsak, Micha{\\l} Oszmaniec","cross_cats":["math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-29T15:04:34Z","title":"A Simple and Efficient Joint Measurement Strategy for Estimating Fermionic Observables and Hamiltonians"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.19230","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":"sha256:499d6c09ea8c71a4afbe293006f706e1f1a370cfff057b0a4e1dc29c8efe3d48","target":"record","created_at":"2026-07-05T11:40:47Z","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":"422acef7f36db284cd7d66f9d6b8b0da4aa26f3f603936d78f16d285c34f2068","cross_cats_sorted":["math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-29T15:04:34Z","title_canon_sha256":"264cf26a0bafa067f3ee679175c023ec9e0c348d24cd9f632abfb21ded8305d7"},"schema_version":"1.0","source":{"id":"2402.19230","kind":"arxiv","version":3}},"canonical_sha256":"296f099a1651709c6cb37a64d7af504fde9fe9859b86925a6447ae36cd4b7221","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"296f099a1651709c6cb37a64d7af504fde9fe9859b86925a6447ae36cd4b7221","first_computed_at":"2026-07-05T11:40:47.832191Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:40:47.832191Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jRJIDAdAUSUdJ0hwJ5INi9SX5BzqROZUHqNzDOwUhYREdXn41UInTBJ1v0sKHFu7LhvMerhw47oK6xtL4RliBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:40:47.832730Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.19230","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:499d6c09ea8c71a4afbe293006f706e1f1a370cfff057b0a4e1dc29c8efe3d48","sha256:8f7e448e823526b8dc45aad16a2fad92559c02bf211f3526d56a6a2681391ccf"],"state_sha256":"f81c913a47985f8d86bd3449242363b37f30dbc0c8998db9f33de3eafb6fa142"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"phjkfcmq5wvV1pK1xI+x/gmGLpiz/0rbfOpbSYuPALweffXcHRw+Amz9ONJt4Eb9gs0OOysx1METhg7H4W5/CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T21:08:46.105326Z","bundle_sha256":"4cc9a3854064232a7b0ac1b26bbb4e068f5714c1a8462aabbdc2658012f0c4b6"}}