{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:7PTPARV4YJ3JKZJEKXBOSXZZ65","short_pith_number":"pith:7PTPARV4","canonical_record":{"source":{"id":"1407.1555","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-06T23:14:08Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"f58c1e8da4bf8f03b4df8057bdfa1188e58845189be9d7ab8b567ce03cabaf56","abstract_canon_sha256":"273872bb3911b5023fe6da5637bb965493abae0af7e190bcfe9a79a6bfbc775d"},"schema_version":"1.0"},"canonical_sha256":"fbe6f046bcc27695652455c2e95f39f758c619a648d0e3a8e5e19031c88c28b9","source":{"kind":"arxiv","id":"1407.1555","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.1555","created_at":"2026-05-18T02:39:40Z"},{"alias_kind":"arxiv_version","alias_value":"1407.1555v2","created_at":"2026-05-18T02:39:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.1555","created_at":"2026-05-18T02:39:40Z"},{"alias_kind":"pith_short_12","alias_value":"7PTPARV4YJ3J","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7PTPARV4YJ3JKZJE","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7PTPARV4","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:7PTPARV4YJ3JKZJEKXBOSXZZ65","target":"record","payload":{"canonical_record":{"source":{"id":"1407.1555","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-06T23:14:08Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"f58c1e8da4bf8f03b4df8057bdfa1188e58845189be9d7ab8b567ce03cabaf56","abstract_canon_sha256":"273872bb3911b5023fe6da5637bb965493abae0af7e190bcfe9a79a6bfbc775d"},"schema_version":"1.0"},"canonical_sha256":"fbe6f046bcc27695652455c2e95f39f758c619a648d0e3a8e5e19031c88c28b9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:40.292669Z","signature_b64":"aO7EQSuMQfwyCC9MSXwecdZTjUpkoXAbf6vLg5PwFnqH8nu79K4ZmRmUIDoUdU6iXOWwmJ1ITQEWJIRdMm5IBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fbe6f046bcc27695652455c2e95f39f758c619a648d0e3a8e5e19031c88c28b9","last_reissued_at":"2026-05-18T02:39:40.292043Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:40.292043Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.1555","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":"2026-05-18T02:39:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g4iFFXW2Q4sxd4lnLX27gx2ZR4qRY52hE2z2/wsRO5o8uIlloFkpQTKCqjtJXVAr24+3jcE2wpH24GXmgBlSAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:30:19.951864Z"},"content_sha256":"23c66447aed9d7fe01caf0d5c2772322d1c2005b0e50d9c712ca8595d738afb0","schema_version":"1.0","event_id":"sha256:23c66447aed9d7fe01caf0d5c2772322d1c2005b0e50d9c712ca8595d738afb0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:7PTPARV4YJ3JKZJEKXBOSXZZ65","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Noise-compensating pulses for electrostatically controlled silicon spin qubits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Edwin Barnes, Fernando A. Calderon-Vargas, Jason P. Kestner, Muhed S. Rana, Sankar Das Sarma, Xin Wang","submitted_at":"2014-07-06T23:14:08Z","abstract_excerpt":"We study the performance of SUPCODE---a family of dynamically correcting pulses designed to cancel simultaneously both Overhauser and charge noise for singlet-triplet spin qubits---adapted to silicon devices with electrostatic control. We consider both natural Si and isotope-enriched Si systems, and in each case we investigate the behavior of individual gates under static noise and perform randomized benchmarking to obtain the average gate error under realistic 1/f noise. We find that in most cases SUPCODE pulses offer roughly an order of magnitude reduction in gate error, and especially in th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.1555","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":""},"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":"2026-05-18T02:39:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0uftnzUX2M4njdFoz6YGCpYN5JRhLZS7q/xOC9yfqNXlwVWcalA5IkQG8n7DygyNe5QDp8P51tkxYV6MGQ9cDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:30:19.952526Z"},"content_sha256":"e5038f252d239142fed0a8926a54b6a9b919cfa0ea68e1355b8df23a77ed3f92","schema_version":"1.0","event_id":"sha256:e5038f252d239142fed0a8926a54b6a9b919cfa0ea68e1355b8df23a77ed3f92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7PTPARV4YJ3JKZJEKXBOSXZZ65/bundle.json","state_url":"https://pith.science/pith/7PTPARV4YJ3JKZJEKXBOSXZZ65/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7PTPARV4YJ3JKZJEKXBOSXZZ65/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":"2026-05-30T05:30:19Z","links":{"resolver":"https://pith.science/pith/7PTPARV4YJ3JKZJEKXBOSXZZ65","bundle":"https://pith.science/pith/7PTPARV4YJ3JKZJEKXBOSXZZ65/bundle.json","state":"https://pith.science/pith/7PTPARV4YJ3JKZJEKXBOSXZZ65/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7PTPARV4YJ3JKZJEKXBOSXZZ65/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:7PTPARV4YJ3JKZJEKXBOSXZZ65","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":"273872bb3911b5023fe6da5637bb965493abae0af7e190bcfe9a79a6bfbc775d","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-06T23:14:08Z","title_canon_sha256":"f58c1e8da4bf8f03b4df8057bdfa1188e58845189be9d7ab8b567ce03cabaf56"},"schema_version":"1.0","source":{"id":"1407.1555","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.1555","created_at":"2026-05-18T02:39:40Z"},{"alias_kind":"arxiv_version","alias_value":"1407.1555v2","created_at":"2026-05-18T02:39:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.1555","created_at":"2026-05-18T02:39:40Z"},{"alias_kind":"pith_short_12","alias_value":"7PTPARV4YJ3J","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"7PTPARV4YJ3JKZJE","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"7PTPARV4","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:e5038f252d239142fed0a8926a54b6a9b919cfa0ea68e1355b8df23a77ed3f92","target":"graph","created_at":"2026-05-18T02:39:40Z","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":"We study the performance of SUPCODE---a family of dynamically correcting pulses designed to cancel simultaneously both Overhauser and charge noise for singlet-triplet spin qubits---adapted to silicon devices with electrostatic control. We consider both natural Si and isotope-enriched Si systems, and in each case we investigate the behavior of individual gates under static noise and perform randomized benchmarking to obtain the average gate error under realistic 1/f noise. We find that in most cases SUPCODE pulses offer roughly an order of magnitude reduction in gate error, and especially in th","authors_text":"Edwin Barnes, Fernando A. Calderon-Vargas, Jason P. Kestner, Muhed S. Rana, Sankar Das Sarma, Xin Wang","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-06T23:14:08Z","title":"Noise-compensating pulses for electrostatically controlled silicon spin qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.1555","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":"sha256:23c66447aed9d7fe01caf0d5c2772322d1c2005b0e50d9c712ca8595d738afb0","target":"record","created_at":"2026-05-18T02:39:40Z","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":"273872bb3911b5023fe6da5637bb965493abae0af7e190bcfe9a79a6bfbc775d","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-07-06T23:14:08Z","title_canon_sha256":"f58c1e8da4bf8f03b4df8057bdfa1188e58845189be9d7ab8b567ce03cabaf56"},"schema_version":"1.0","source":{"id":"1407.1555","kind":"arxiv","version":2}},"canonical_sha256":"fbe6f046bcc27695652455c2e95f39f758c619a648d0e3a8e5e19031c88c28b9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fbe6f046bcc27695652455c2e95f39f758c619a648d0e3a8e5e19031c88c28b9","first_computed_at":"2026-05-18T02:39:40.292043Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:40.292043Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aO7EQSuMQfwyCC9MSXwecdZTjUpkoXAbf6vLg5PwFnqH8nu79K4ZmRmUIDoUdU6iXOWwmJ1ITQEWJIRdMm5IBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:40.292669Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.1555","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23c66447aed9d7fe01caf0d5c2772322d1c2005b0e50d9c712ca8595d738afb0","sha256:e5038f252d239142fed0a8926a54b6a9b919cfa0ea68e1355b8df23a77ed3f92"],"state_sha256":"96aa36da2d91a5f2734130d70733a5f742a82dea669050bed9255cacf10ac9c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SssvVh/ggaX95cQBqkr5cxH0LKOcQkryIZ7trSeNdEIf73F0SL9q6ymPUg/eUNwMfZyUFKhMCBzBS9eU7ncpCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:30:19.955447Z","bundle_sha256":"f17a694ff0114fe763bc3c85b77e52e140311c4fe7590ff2b64fe3a1ae0f748f"}}