{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:UB6PYEIMT2O5FXOE6BU5O65QFM","short_pith_number":"pith:UB6PYEIM","canonical_record":{"source":{"id":"2402.18665","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-28T19:18:27Z","cross_cats_sorted":[],"title_canon_sha256":"25d12cc8077d0c17cf0475b5ed3f58e4453da632b8eaf40df1ace6b210538a30","abstract_canon_sha256":"4c3debe1d98d2f050e630304e39ec9ca46cd2af2683a2fd4dfd002d4939cb218"},"schema_version":"1.0"},"canonical_sha256":"a07cfc110c9e9dd2ddc4f069d77bb02b3593d51cd22fbebf367dee3a1953d6d1","source":{"kind":"arxiv","id":"2402.18665","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.18665","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"arxiv_version","alias_value":"2402.18665v3","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.18665","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"pith_short_12","alias_value":"UB6PYEIMT2O5","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"pith_short_16","alias_value":"UB6PYEIMT2O5FXOE","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"pith_short_8","alias_value":"UB6PYEIM","created_at":"2026-07-05T10:06:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:UB6PYEIMT2O5FXOE6BU5O65QFM","target":"record","payload":{"canonical_record":{"source":{"id":"2402.18665","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-28T19:18:27Z","cross_cats_sorted":[],"title_canon_sha256":"25d12cc8077d0c17cf0475b5ed3f58e4453da632b8eaf40df1ace6b210538a30","abstract_canon_sha256":"4c3debe1d98d2f050e630304e39ec9ca46cd2af2683a2fd4dfd002d4939cb218"},"schema_version":"1.0"},"canonical_sha256":"a07cfc110c9e9dd2ddc4f069d77bb02b3593d51cd22fbebf367dee3a1953d6d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:06:39.364766Z","signature_b64":"wb1X1oV2yFyz6r6kfdxpNJx+U07HexqbLcrY5u5YzLKyhN6n96tr/O7fK+ErfZunPiLz+N1fp/Ha9ZYW25HsBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a07cfc110c9e9dd2ddc4f069d77bb02b3593d51cd22fbebf367dee3a1953d6d1","last_reissued_at":"2026-07-05T10:06:39.364343Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:06:39.364343Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.18665","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":"2026-07-05T10:06:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zSPU6KI6XsbjZQdHVB4GcUgmyUsJmEFLYG+xzw1URDgQzKpTA1G3MQOHgJ/jOSD/W0pX2/HyPMecg/as3oLvBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:15:23.989850Z"},"content_sha256":"66d1714bf70da9cac260456fe3bdbf6253d6c91b3d15f057dc082d5d472cdfc6","schema_version":"1.0","event_id":"sha256:66d1714bf70da9cac260456fe3bdbf6253d6c91b3d15f057dc082d5d472cdfc6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:UB6PYEIMT2O5FXOE6BU5O65QFM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient learning of quantum states prepared with few fermionic non-Gaussian gates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Antonio Anna Mele, Yaroslav Herasymenko","submitted_at":"2024-02-28T19:18:27Z","abstract_excerpt":"The experimental realization of increasingly complex quantum states underscores the pressing need for new methods of state learning and verification. In one such framework, quantum state tomography, the aim is to learn the full quantum state from data obtained by measurements. Without prior assumptions on the state, this task is prohibitively hard. Here, we present an efficient algorithm for learning states on $n$ fermion modes prepared by any number of Gaussian and at most $t$ non-Gaussian gates. By Jordan-Wigner mapping, this also includes $n$-qubit states prepared by nearest-neighbour match"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.18665","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/2402.18665/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":"2026-07-05T10:06:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hyysh003wVFSMZ94p6Cpd5T+QlyiHLnfnP2hEmZQBHWkbqKeKF9+CTUSF+D4o4JwBJAyHyd0sNmAf8mTFNwUCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T22:15:23.990537Z"},"content_sha256":"c9971bab7a6fd09c704562b73c501342fd2e5a5f8ba2ab99d24a67e67029d906","schema_version":"1.0","event_id":"sha256:c9971bab7a6fd09c704562b73c501342fd2e5a5f8ba2ab99d24a67e67029d906"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UB6PYEIMT2O5FXOE6BU5O65QFM/bundle.json","state_url":"https://pith.science/pith/UB6PYEIMT2O5FXOE6BU5O65QFM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UB6PYEIMT2O5FXOE6BU5O65QFM/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":"2026-08-03T22:15:23Z","links":{"resolver":"https://pith.science/pith/UB6PYEIMT2O5FXOE6BU5O65QFM","bundle":"https://pith.science/pith/UB6PYEIMT2O5FXOE6BU5O65QFM/bundle.json","state":"https://pith.science/pith/UB6PYEIMT2O5FXOE6BU5O65QFM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UB6PYEIMT2O5FXOE6BU5O65QFM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:UB6PYEIMT2O5FXOE6BU5O65QFM","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":"4c3debe1d98d2f050e630304e39ec9ca46cd2af2683a2fd4dfd002d4939cb218","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-28T19:18:27Z","title_canon_sha256":"25d12cc8077d0c17cf0475b5ed3f58e4453da632b8eaf40df1ace6b210538a30"},"schema_version":"1.0","source":{"id":"2402.18665","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.18665","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"arxiv_version","alias_value":"2402.18665v3","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.18665","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"pith_short_12","alias_value":"UB6PYEIMT2O5","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"pith_short_16","alias_value":"UB6PYEIMT2O5FXOE","created_at":"2026-07-05T10:06:39Z"},{"alias_kind":"pith_short_8","alias_value":"UB6PYEIM","created_at":"2026-07-05T10:06:39Z"}],"graph_snapshots":[{"event_id":"sha256:c9971bab7a6fd09c704562b73c501342fd2e5a5f8ba2ab99d24a67e67029d906","target":"graph","created_at":"2026-07-05T10:06:39Z","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/2402.18665/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The experimental realization of increasingly complex quantum states underscores the pressing need for new methods of state learning and verification. In one such framework, quantum state tomography, the aim is to learn the full quantum state from data obtained by measurements. Without prior assumptions on the state, this task is prohibitively hard. Here, we present an efficient algorithm for learning states on $n$ fermion modes prepared by any number of Gaussian and at most $t$ non-Gaussian gates. By Jordan-Wigner mapping, this also includes $n$-qubit states prepared by nearest-neighbour match","authors_text":"Antonio Anna Mele, Yaroslav Herasymenko","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-28T19:18:27Z","title":"Efficient learning of quantum states prepared with few fermionic non-Gaussian gates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.18665","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":"sha256:66d1714bf70da9cac260456fe3bdbf6253d6c91b3d15f057dc082d5d472cdfc6","target":"record","created_at":"2026-07-05T10:06:39Z","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":"4c3debe1d98d2f050e630304e39ec9ca46cd2af2683a2fd4dfd002d4939cb218","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-28T19:18:27Z","title_canon_sha256":"25d12cc8077d0c17cf0475b5ed3f58e4453da632b8eaf40df1ace6b210538a30"},"schema_version":"1.0","source":{"id":"2402.18665","kind":"arxiv","version":3}},"canonical_sha256":"a07cfc110c9e9dd2ddc4f069d77bb02b3593d51cd22fbebf367dee3a1953d6d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a07cfc110c9e9dd2ddc4f069d77bb02b3593d51cd22fbebf367dee3a1953d6d1","first_computed_at":"2026-07-05T10:06:39.364343Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:06:39.364343Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wb1X1oV2yFyz6r6kfdxpNJx+U07HexqbLcrY5u5YzLKyhN6n96tr/O7fK+ErfZunPiLz+N1fp/Ha9ZYW25HsBA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:06:39.364766Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.18665","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66d1714bf70da9cac260456fe3bdbf6253d6c91b3d15f057dc082d5d472cdfc6","sha256:c9971bab7a6fd09c704562b73c501342fd2e5a5f8ba2ab99d24a67e67029d906"],"state_sha256":"e80b1f77e0e1e87436c438655cb6da204ccb1c9abdcf72311ad490b514ab915f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u6Iua9B5gs6MYPsHn9wWL1JmSU/y8wOga4tqs1RH6j0isjfBaJU5pr8/E8kixhB9fyCpDzdL+GD0fCrV+8s2DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T22:15:23.994393Z","bundle_sha256":"8c187fb945d717622bcbb897fbec5569737c8d3c4d9b27dabfe5853b2df1a809"}}