{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XQSGTN7I6SEPOJVZJWBMJWZQQS","short_pith_number":"pith:XQSGTN7I","canonical_record":{"source":{"id":"1807.02467","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-06T16:09:37Z","cross_cats_sorted":[],"title_canon_sha256":"764deb84be0d02fd0c5b9de46ee214e87e699e65684c8f500b3734e16852bf87","abstract_canon_sha256":"4010d0a06c454f2a6a35a7b4a805ab1f762779156e39c3e94cb6ccdab449cea4"},"schema_version":"1.0"},"canonical_sha256":"bc2469b7e8f488f726b94d82c4db30849f2a09167bcfce6db9a8b4b2d8ae98f6","source":{"kind":"arxiv","id":"1807.02467","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.02467","created_at":"2026-05-17T23:44:59Z"},{"alias_kind":"arxiv_version","alias_value":"1807.02467v5","created_at":"2026-05-17T23:44:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.02467","created_at":"2026-05-17T23:44:59Z"},{"alias_kind":"pith_short_12","alias_value":"XQSGTN7I6SEP","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XQSGTN7I6SEPOJVZ","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XQSGTN7I","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XQSGTN7I6SEPOJVZJWBMJWZQQS","target":"record","payload":{"canonical_record":{"source":{"id":"1807.02467","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-06T16:09:37Z","cross_cats_sorted":[],"title_canon_sha256":"764deb84be0d02fd0c5b9de46ee214e87e699e65684c8f500b3734e16852bf87","abstract_canon_sha256":"4010d0a06c454f2a6a35a7b4a805ab1f762779156e39c3e94cb6ccdab449cea4"},"schema_version":"1.0"},"canonical_sha256":"bc2469b7e8f488f726b94d82c4db30849f2a09167bcfce6db9a8b4b2d8ae98f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:59.387705Z","signature_b64":"gBQ6aRwL7WWT4k/2N+SNdJvXuyM4UQT39lcBqbH7tJaUu4Q38/xb/mCRIDK7JcUltKIb8zaU35B0DQ2WU/tyCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bc2469b7e8f488f726b94d82c4db30849f2a09167bcfce6db9a8b4b2d8ae98f6","last_reissued_at":"2026-05-17T23:44:59.387133Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:59.387133Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.02467","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:44:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TNGXJ6wVqtoG6akD3Fkr4qelSt0ibcNOMFdmrAeg/1tyL80+SD4zlFn3V5KkHzrSYF203CE6fYcGe80fQYZNBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T22:10:18.773096Z"},"content_sha256":"7798f124dec6dcb4aadea5a66328dd30f6d9a03de6cdf99f03e981813a85225f","schema_version":"1.0","event_id":"sha256:7798f124dec6dcb4aadea5a66328dd30f6d9a03de6cdf99f03e981813a85225f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XQSGTN7I6SEPOJVZJWBMJWZQQS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Error-mitigated digital quantum simulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Sam McArdle, Simon Benjamin, Xiao Yuan","submitted_at":"2018-07-06T16:09:37Z","abstract_excerpt":"Variational algorithms may enable classically intractable simulations on near-future quantum computers. However, their potential is limited by hardware errors. It is therefore crucial to develop efficient ways to mitigate these errors. Here, we propose a stabiliser-like method which enables the detection of up to 60 - 80 % of depolarising errors. Our method is suitable for near-term quantum hardware. Simulations show that our method can significantly benefit calculations subject to both stochastic and correlated noise, especially when combined with existing error mitigation techniques."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.02467","kind":"arxiv","version":5},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-17T23:44:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q3b6thaE8QNOMFhSdvV2p7cmcNuCG+CirVqAkKzNqux8+8QY9GOLG8gvIlqfVRjTNJGuBx/HEbgXDUthUuGmCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T22:10:18.773447Z"},"content_sha256":"d0c851de5989e1e4387f7b97022ea678016925b2451cf197fa33e87d97d17ce1","schema_version":"1.0","event_id":"sha256:d0c851de5989e1e4387f7b97022ea678016925b2451cf197fa33e87d97d17ce1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XQSGTN7I6SEPOJVZJWBMJWZQQS/bundle.json","state_url":"https://pith.science/pith/XQSGTN7I6SEPOJVZJWBMJWZQQS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XQSGTN7I6SEPOJVZJWBMJWZQQS/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":"2026-06-28T22:10:18Z","links":{"resolver":"https://pith.science/pith/XQSGTN7I6SEPOJVZJWBMJWZQQS","bundle":"https://pith.science/pith/XQSGTN7I6SEPOJVZJWBMJWZQQS/bundle.json","state":"https://pith.science/pith/XQSGTN7I6SEPOJVZJWBMJWZQQS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XQSGTN7I6SEPOJVZJWBMJWZQQS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XQSGTN7I6SEPOJVZJWBMJWZQQS","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":"4010d0a06c454f2a6a35a7b4a805ab1f762779156e39c3e94cb6ccdab449cea4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-06T16:09:37Z","title_canon_sha256":"764deb84be0d02fd0c5b9de46ee214e87e699e65684c8f500b3734e16852bf87"},"schema_version":"1.0","source":{"id":"1807.02467","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.02467","created_at":"2026-05-17T23:44:59Z"},{"alias_kind":"arxiv_version","alias_value":"1807.02467v5","created_at":"2026-05-17T23:44:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.02467","created_at":"2026-05-17T23:44:59Z"},{"alias_kind":"pith_short_12","alias_value":"XQSGTN7I6SEP","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"XQSGTN7I6SEPOJVZ","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"XQSGTN7I","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:d0c851de5989e1e4387f7b97022ea678016925b2451cf197fa33e87d97d17ce1","target":"graph","created_at":"2026-05-17T23:44:59Z","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"},"paper":{"abstract_excerpt":"Variational algorithms may enable classically intractable simulations on near-future quantum computers. However, their potential is limited by hardware errors. It is therefore crucial to develop efficient ways to mitigate these errors. Here, we propose a stabiliser-like method which enables the detection of up to 60 - 80 % of depolarising errors. Our method is suitable for near-term quantum hardware. Simulations show that our method can significantly benefit calculations subject to both stochastic and correlated noise, especially when combined with existing error mitigation techniques.","authors_text":"Sam McArdle, Simon Benjamin, Xiao Yuan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-06T16:09:37Z","title":"Error-mitigated digital quantum simulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.02467","kind":"arxiv","version":5},"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":"sha256:7798f124dec6dcb4aadea5a66328dd30f6d9a03de6cdf99f03e981813a85225f","target":"record","created_at":"2026-05-17T23:44:59Z","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":"4010d0a06c454f2a6a35a7b4a805ab1f762779156e39c3e94cb6ccdab449cea4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-06T16:09:37Z","title_canon_sha256":"764deb84be0d02fd0c5b9de46ee214e87e699e65684c8f500b3734e16852bf87"},"schema_version":"1.0","source":{"id":"1807.02467","kind":"arxiv","version":5}},"canonical_sha256":"bc2469b7e8f488f726b94d82c4db30849f2a09167bcfce6db9a8b4b2d8ae98f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bc2469b7e8f488f726b94d82c4db30849f2a09167bcfce6db9a8b4b2d8ae98f6","first_computed_at":"2026-05-17T23:44:59.387133Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:59.387133Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gBQ6aRwL7WWT4k/2N+SNdJvXuyM4UQT39lcBqbH7tJaUu4Q38/xb/mCRIDK7JcUltKIb8zaU35B0DQ2WU/tyCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:59.387705Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.02467","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7798f124dec6dcb4aadea5a66328dd30f6d9a03de6cdf99f03e981813a85225f","sha256:d0c851de5989e1e4387f7b97022ea678016925b2451cf197fa33e87d97d17ce1"],"state_sha256":"1f6baaf2fe7af5c028e428be5269e292c165f6313c638a22b7fe9e5bda8c1912"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3P7qiCULnyhyCHbTalzd1b0Vh/h8F8ShXaQ5DCHVLO+YuElMqA9ldpuUAOaXJlvNBjTrQ5Tz/vptoNoylX8nBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T22:10:18.775367Z","bundle_sha256":"08b805f54d4da3b7408b16bd64d4781def4cf0c18b5446976aee35a89a23c855"}}