{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:RWZEISVCKH62TJMBORR5FPU4GO","short_pith_number":"pith:RWZEISVC","canonical_record":{"source":{"id":"2002.00035","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-01-31T19:44:37Z","cross_cats_sorted":[],"title_canon_sha256":"92ea19861a191ac0cd5e21d0fd27910de38659a7428385f0fd8b9b39e65c93b6","abstract_canon_sha256":"550e12e32c7afe91bafeea0dbe19c6e0b867803796efb928e0b53ca1f2b7d35d"},"schema_version":"1.0"},"canonical_sha256":"8db2444aa251fda9a5817463d2be9c338b95b945b680f92f81b8873777bd17f2","source":{"kind":"arxiv","id":"2002.00035","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.00035","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"arxiv_version","alias_value":"2002.00035v2","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.00035","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"pith_short_12","alias_value":"RWZEISVCKH62","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"pith_short_16","alias_value":"RWZEISVCKH62TJMB","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"pith_short_8","alias_value":"RWZEISVC","created_at":"2026-07-05T02:23:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:RWZEISVCKH62TJMBORR5FPU4GO","target":"record","payload":{"canonical_record":{"source":{"id":"2002.00035","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-01-31T19:44:37Z","cross_cats_sorted":[],"title_canon_sha256":"92ea19861a191ac0cd5e21d0fd27910de38659a7428385f0fd8b9b39e65c93b6","abstract_canon_sha256":"550e12e32c7afe91bafeea0dbe19c6e0b867803796efb928e0b53ca1f2b7d35d"},"schema_version":"1.0"},"canonical_sha256":"8db2444aa251fda9a5817463d2be9c338b95b945b680f92f81b8873777bd17f2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:23:42.320488Z","signature_b64":"V7cWXavTK5aTY3zSXO9Fdvbf/wKSx7cAspZh36AKpzR/Rpdw3Sf9a31E1By6nl+yachLiQzvhbfJikqr7Y0/AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8db2444aa251fda9a5817463d2be9c338b95b945b680f92f81b8873777bd17f2","last_reissued_at":"2026-07-05T02:23:42.320063Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:23:42.320063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.00035","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":"2026-07-05T02:23:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sMiV4Df3ItmDJA1MSR9ut/3cmnCkr6VG3HFcOYr0YwNed4Pb3I0BderHM87oMb8xmCa9eGC56OSIU8yvjvhCBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T22:23:38.873480Z"},"content_sha256":"6aec3f1153375f6756ce070cb946ca8958dc6547cd0cfff8f8be0cc3ce3d6ae3","schema_version":"1.0","event_id":"sha256:6aec3f1153375f6756ce070cb946ca8958dc6547cd0cfff8f8be0cc3ce3d6ae3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:RWZEISVCKH62TJMBORR5FPU4GO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simulating quantum chemistry in the seniority-zero space on qubit-based quantum computers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Christian Gogolin, Jos\\'e A. G\\'amez, Marta Millaruelo, Vincent E. Elfving","submitted_at":"2020-01-31T19:44:37Z","abstract_excerpt":"Accurate quantum chemistry simulations remain challenging on classical computers for problems of industrially relevant sizes and there is reason for hope that quantum computing may help push the boundaries of what is technically feasible. While variational quantum eigensolver (VQE) algorithms may already turn noisy intermediate scale quantum (NISQ) devices into useful machines, one has to make all efforts to use the scarce quantum resources as efficiently as possible. We combine the so-called seniority-zero, or paired-electron, approximation of computational quantum chemistry with techniques f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.00035","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/2002.00035/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":"2026-07-05T02:23:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gflZ/3CpcP6c2sOefZ2Dg8sHjqs4c2H3D39evkSOtGVat6f59jYnHSgs8pktuS26AiNC6uDj/9AjAszpEqlCBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T22:23:38.873892Z"},"content_sha256":"b8a504d7c7e35f9d5670f26ec74b946e3637984367fc89a3773d5716a0315ea2","schema_version":"1.0","event_id":"sha256:b8a504d7c7e35f9d5670f26ec74b946e3637984367fc89a3773d5716a0315ea2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RWZEISVCKH62TJMBORR5FPU4GO/bundle.json","state_url":"https://pith.science/pith/RWZEISVCKH62TJMBORR5FPU4GO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RWZEISVCKH62TJMBORR5FPU4GO/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":"2026-08-17T22:23:38Z","links":{"resolver":"https://pith.science/pith/RWZEISVCKH62TJMBORR5FPU4GO","bundle":"https://pith.science/pith/RWZEISVCKH62TJMBORR5FPU4GO/bundle.json","state":"https://pith.science/pith/RWZEISVCKH62TJMBORR5FPU4GO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RWZEISVCKH62TJMBORR5FPU4GO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:RWZEISVCKH62TJMBORR5FPU4GO","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":"550e12e32c7afe91bafeea0dbe19c6e0b867803796efb928e0b53ca1f2b7d35d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-01-31T19:44:37Z","title_canon_sha256":"92ea19861a191ac0cd5e21d0fd27910de38659a7428385f0fd8b9b39e65c93b6"},"schema_version":"1.0","source":{"id":"2002.00035","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.00035","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"arxiv_version","alias_value":"2002.00035v2","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.00035","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"pith_short_12","alias_value":"RWZEISVCKH62","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"pith_short_16","alias_value":"RWZEISVCKH62TJMB","created_at":"2026-07-05T02:23:42Z"},{"alias_kind":"pith_short_8","alias_value":"RWZEISVC","created_at":"2026-07-05T02:23:42Z"}],"graph_snapshots":[{"event_id":"sha256:b8a504d7c7e35f9d5670f26ec74b946e3637984367fc89a3773d5716a0315ea2","target":"graph","created_at":"2026-07-05T02:23:42Z","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/2002.00035/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate quantum chemistry simulations remain challenging on classical computers for problems of industrially relevant sizes and there is reason for hope that quantum computing may help push the boundaries of what is technically feasible. While variational quantum eigensolver (VQE) algorithms may already turn noisy intermediate scale quantum (NISQ) devices into useful machines, one has to make all efforts to use the scarce quantum resources as efficiently as possible. We combine the so-called seniority-zero, or paired-electron, approximation of computational quantum chemistry with techniques f","authors_text":"Christian Gogolin, Jos\\'e A. G\\'amez, Marta Millaruelo, Vincent E. Elfving","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-01-31T19:44:37Z","title":"Simulating quantum chemistry in the seniority-zero space on qubit-based quantum computers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.00035","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":"sha256:6aec3f1153375f6756ce070cb946ca8958dc6547cd0cfff8f8be0cc3ce3d6ae3","target":"record","created_at":"2026-07-05T02:23:42Z","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":"550e12e32c7afe91bafeea0dbe19c6e0b867803796efb928e0b53ca1f2b7d35d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-01-31T19:44:37Z","title_canon_sha256":"92ea19861a191ac0cd5e21d0fd27910de38659a7428385f0fd8b9b39e65c93b6"},"schema_version":"1.0","source":{"id":"2002.00035","kind":"arxiv","version":2}},"canonical_sha256":"8db2444aa251fda9a5817463d2be9c338b95b945b680f92f81b8873777bd17f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8db2444aa251fda9a5817463d2be9c338b95b945b680f92f81b8873777bd17f2","first_computed_at":"2026-07-05T02:23:42.320063Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:23:42.320063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V7cWXavTK5aTY3zSXO9Fdvbf/wKSx7cAspZh36AKpzR/Rpdw3Sf9a31E1By6nl+yachLiQzvhbfJikqr7Y0/AA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:23:42.320488Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.00035","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6aec3f1153375f6756ce070cb946ca8958dc6547cd0cfff8f8be0cc3ce3d6ae3","sha256:b8a504d7c7e35f9d5670f26ec74b946e3637984367fc89a3773d5716a0315ea2"],"state_sha256":"0bb8a1053ca9ae0915c4d2d3f2a90cfea48b21257d7fa5120fe453469c272e2b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rlAKiFPQTAfwy+amPA8jG6NfE5ErdxwjMPkXXZe1GMnpQPSfW6+DsfaCuF6wnKHTerjc1cb/MFG493itPFHUBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T22:23:38.876274Z","bundle_sha256":"04d1c3b9b6685f7993e7a0adf826a8ddbfb66b23eaa835608735f87b4e7cbe82"}}