{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:KFQESD42V7F4YFWPM57DG5PAJP","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":"b919e2a6a16a70d490d34f77d3272575839492e4b2df61c68a666332af1cb303","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-02-23T07:01:30Z","title_canon_sha256":"77318c0c27427aa100eceaa22ef7b994fdee128e7c9464be887bbe6bf64fdebb"},"schema_version":"1.0","source":{"id":"2602.19556","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.19556","created_at":"2026-05-21T01:05:16Z"},{"alias_kind":"arxiv_version","alias_value":"2602.19556v2","created_at":"2026-05-21T01:05:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.19556","created_at":"2026-05-21T01:05:16Z"},{"alias_kind":"pith_short_12","alias_value":"KFQESD42V7F4","created_at":"2026-05-21T01:05:16Z"},{"alias_kind":"pith_short_16","alias_value":"KFQESD42V7F4YFWP","created_at":"2026-05-21T01:05:16Z"},{"alias_kind":"pith_short_8","alias_value":"KFQESD42","created_at":"2026-05-21T01:05:16Z"}],"graph_snapshots":[{"event_id":"sha256:ad2ba36ea222e509564e2f23aebb216a0ff161aa6f58ebc1c983679404858a4f","target":"graph","created_at":"2026-05-21T01:05:16Z","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/2602.19556/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The deterministic preparation of quantum many-body ground states is essential for advanced quantum simulation, yet optimal algorithms often require prohibitive hardware resources. Here, we propose a highly efficient, non-variational protocol for ground state preparation using a Power-Cosine quantum signal processing (QSP) filter. By eschewing complex block-encoding techniques, our method directly utilizes coherent time-evolution operators controlled by a single ancillary qubit. The integration of mid-circuit measurement and reset (MCMR) drastically minimizes spatial overhead, translating itera","authors_text":"Jeongbin Jo","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-02-23T07:01:30Z","title":"Deterministic Ground State Preparation via Power-Cosine Filtering of Time Evolution Operators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.19556","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":"sha256:3756205d971ef866271a179bf713f229cb9b0ba15bb3b8e0b909af484dc1cd62","target":"record","created_at":"2026-05-21T01:05:16Z","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":"b919e2a6a16a70d490d34f77d3272575839492e4b2df61c68a666332af1cb303","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-02-23T07:01:30Z","title_canon_sha256":"77318c0c27427aa100eceaa22ef7b994fdee128e7c9464be887bbe6bf64fdebb"},"schema_version":"1.0","source":{"id":"2602.19556","kind":"arxiv","version":2}},"canonical_sha256":"5160490f9aafcbcc16cf677e3375e04bf8a9eb3b58d971ca092cb2c746af4a60","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5160490f9aafcbcc16cf677e3375e04bf8a9eb3b58d971ca092cb2c746af4a60","first_computed_at":"2026-05-21T01:05:16.577482Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-21T01:05:16.577482Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jJXScch5tATgQU7luMnaFa2fBHhi1Ww0zxbGYhCh655Ws9DMZI8x3AqHM8ZIHs6iLf4jem0EPZd+8fWZIsrQDg==","signature_status":"signed_v1","signed_at":"2026-05-21T01:05:16.578455Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.19556","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3756205d971ef866271a179bf713f229cb9b0ba15bb3b8e0b909af484dc1cd62","sha256:ad2ba36ea222e509564e2f23aebb216a0ff161aa6f58ebc1c983679404858a4f"],"state_sha256":"e435fd6387624ce779e50c6f52a2d436142c535ad261782572f95e241af7bf74"}