{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:YEFIPXWZFEZ7BEY4DWOP3GSKDR","short_pith_number":"pith:YEFIPXWZ","canonical_record":{"source":{"id":"2206.06409","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-06-13T18:31:17Z","cross_cats_sorted":[],"title_canon_sha256":"7f72bee7677dc79ed144b5de818444b7369e7f80c4bf34099414f5c028db1c22","abstract_canon_sha256":"8d9e59daa47bc4941f3d2f6edb2401b6c59363dee6a80b33064340b1b84038fb"},"schema_version":"1.0"},"canonical_sha256":"c10a87ded92933f0931c1d9cfd9a4a1c7d3e0e1696f9ba6b32304419015130a2","source":{"kind":"arxiv","id":"2206.06409","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.06409","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"arxiv_version","alias_value":"2206.06409v3","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.06409","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"pith_short_12","alias_value":"YEFIPXWZFEZ7","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"pith_short_16","alias_value":"YEFIPXWZFEZ7BEY4","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"pith_short_8","alias_value":"YEFIPXWZ","created_at":"2026-07-05T07:12:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:YEFIPXWZFEZ7BEY4DWOP3GSKDR","target":"record","payload":{"canonical_record":{"source":{"id":"2206.06409","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-06-13T18:31:17Z","cross_cats_sorted":[],"title_canon_sha256":"7f72bee7677dc79ed144b5de818444b7369e7f80c4bf34099414f5c028db1c22","abstract_canon_sha256":"8d9e59daa47bc4941f3d2f6edb2401b6c59363dee6a80b33064340b1b84038fb"},"schema_version":"1.0"},"canonical_sha256":"c10a87ded92933f0931c1d9cfd9a4a1c7d3e0e1696f9ba6b32304419015130a2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:12:32.294019Z","signature_b64":"NjnSJoGMIMrVRwmOetloxEaCCWCo0Fdr9WDkzKSv0gpBkj4ZNPqGqlsSEtiKPEIi68I6ZXPvjVEdi6lSWyOUCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c10a87ded92933f0931c1d9cfd9a4a1c7d3e0e1696f9ba6b32304419015130a2","last_reissued_at":"2026-07-05T07:12:32.293564Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:12:32.293564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2206.06409","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":"2026-07-05T07:12:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aWJ0G3X57sPuPBY9Ss4p2QcYhwUNxbI2N+m3Bazw6jkTx4Fqf9lGCksTngolYhO0vO2tcWs4dYCgE0oeBomdCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T23:35:19.603060Z"},"content_sha256":"c06c4b09ac068574c03ed323d7aad3a925926f0619e348ac47ab6ee0a4222ec5","schema_version":"1.0","event_id":"sha256:c06c4b09ac068574c03ed323d7aad3a925926f0619e348ac47ab6ee0a4222ec5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:YEFIPXWZFEZ7BEY4DWOP3GSKDR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Composite Quantum Simulations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Matthew Hagan, Nathan Wiebe","submitted_at":"2022-06-13T18:31:17Z","abstract_excerpt":"In this paper we provide a framework for combining multiple quantum simulation methods, such as Trotter-Suzuki formulas and QDrift into a single Composite channel that builds upon older coalescing ideas for reducing gate counts. The central idea behind our approach is to use a partitioning scheme that allocates a Hamiltonian term to the Trotter or QDrift part of a channel within the simulation. This allows us to simulate small but numerous terms using QDrift while simulating the larger terms using a high-order Trotter-Suzuki formula. We prove rigorous bounds on the diamond distance between the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.06409","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/2206.06409/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":"2026-07-05T07:12:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PpzMqrnwhM5b4EM/S8cTjMQwndu7OhKb0ltVOu+xUEExQ43PCo3haJFm/4nN/pMf1Lp/IanqmQrggp/Lez9FCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T23:35:19.603801Z"},"content_sha256":"03029182560f239c00fa35bf8d25d23f6f4c3211dc7c376e5859e36fbb148eea","schema_version":"1.0","event_id":"sha256:03029182560f239c00fa35bf8d25d23f6f4c3211dc7c376e5859e36fbb148eea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YEFIPXWZFEZ7BEY4DWOP3GSKDR/bundle.json","state_url":"https://pith.science/pith/YEFIPXWZFEZ7BEY4DWOP3GSKDR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YEFIPXWZFEZ7BEY4DWOP3GSKDR/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":"2026-08-17T23:35:19Z","links":{"resolver":"https://pith.science/pith/YEFIPXWZFEZ7BEY4DWOP3GSKDR","bundle":"https://pith.science/pith/YEFIPXWZFEZ7BEY4DWOP3GSKDR/bundle.json","state":"https://pith.science/pith/YEFIPXWZFEZ7BEY4DWOP3GSKDR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YEFIPXWZFEZ7BEY4DWOP3GSKDR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:YEFIPXWZFEZ7BEY4DWOP3GSKDR","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":"8d9e59daa47bc4941f3d2f6edb2401b6c59363dee6a80b33064340b1b84038fb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-06-13T18:31:17Z","title_canon_sha256":"7f72bee7677dc79ed144b5de818444b7369e7f80c4bf34099414f5c028db1c22"},"schema_version":"1.0","source":{"id":"2206.06409","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.06409","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"arxiv_version","alias_value":"2206.06409v3","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.06409","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"pith_short_12","alias_value":"YEFIPXWZFEZ7","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"pith_short_16","alias_value":"YEFIPXWZFEZ7BEY4","created_at":"2026-07-05T07:12:32Z"},{"alias_kind":"pith_short_8","alias_value":"YEFIPXWZ","created_at":"2026-07-05T07:12:32Z"}],"graph_snapshots":[{"event_id":"sha256:03029182560f239c00fa35bf8d25d23f6f4c3211dc7c376e5859e36fbb148eea","target":"graph","created_at":"2026-07-05T07:12:32Z","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/2206.06409/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper we provide a framework for combining multiple quantum simulation methods, such as Trotter-Suzuki formulas and QDrift into a single Composite channel that builds upon older coalescing ideas for reducing gate counts. The central idea behind our approach is to use a partitioning scheme that allocates a Hamiltonian term to the Trotter or QDrift part of a channel within the simulation. This allows us to simulate small but numerous terms using QDrift while simulating the larger terms using a high-order Trotter-Suzuki formula. We prove rigorous bounds on the diamond distance between the","authors_text":"Matthew Hagan, Nathan Wiebe","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-06-13T18:31:17Z","title":"Composite Quantum Simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.06409","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:c06c4b09ac068574c03ed323d7aad3a925926f0619e348ac47ab6ee0a4222ec5","target":"record","created_at":"2026-07-05T07:12:32Z","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":"8d9e59daa47bc4941f3d2f6edb2401b6c59363dee6a80b33064340b1b84038fb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-06-13T18:31:17Z","title_canon_sha256":"7f72bee7677dc79ed144b5de818444b7369e7f80c4bf34099414f5c028db1c22"},"schema_version":"1.0","source":{"id":"2206.06409","kind":"arxiv","version":3}},"canonical_sha256":"c10a87ded92933f0931c1d9cfd9a4a1c7d3e0e1696f9ba6b32304419015130a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c10a87ded92933f0931c1d9cfd9a4a1c7d3e0e1696f9ba6b32304419015130a2","first_computed_at":"2026-07-05T07:12:32.293564Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:12:32.293564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NjnSJoGMIMrVRwmOetloxEaCCWCo0Fdr9WDkzKSv0gpBkj4ZNPqGqlsSEtiKPEIi68I6ZXPvjVEdi6lSWyOUCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:12:32.294019Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.06409","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c06c4b09ac068574c03ed323d7aad3a925926f0619e348ac47ab6ee0a4222ec5","sha256:03029182560f239c00fa35bf8d25d23f6f4c3211dc7c376e5859e36fbb148eea"],"state_sha256":"8642f76bbdf640b1e610f12d46024eded45a06e40266383cbe2873470314cd09"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OtAku0GYl+8UMBAc8bwGlZMUPULmAkg1aa969PNt+L2NUSdrG8MlfArnkwNss4B9qiF/4Ca6dEEwZo2YcLqJAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T23:35:19.610083Z","bundle_sha256":"0917bc7e99fe281c7d9cd58966b1dd54d80ddd2769b9bfe3a151173ebb88d004"}}