{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:3R6PDX42FAFBXKTG3CEE25DG7K","short_pith_number":"pith:3R6PDX42","canonical_record":{"source":{"id":"1908.08003","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-21T17:26:53Z","cross_cats_sorted":[],"title_canon_sha256":"96d9a91dc1526e38cbbf49c761f35b827e65662ea59db2d60cc4e2cf94a174ac","abstract_canon_sha256":"7bbbaf8aa211031a7511ff86cc73fb9dda894f6290a146b3158e8c74e8497715"},"schema_version":"1.0"},"canonical_sha256":"dc7cf1df9a280a1baa66d8884d7466fab032259e0fc1531ea7b6c391fb29bb0c","source":{"kind":"arxiv","id":"1908.08003","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08003","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08003v1","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08003","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_12","alias_value":"3R6PDX42FAFB","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_16","alias_value":"3R6PDX42FAFBXKTG","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_8","alias_value":"3R6PDX42","created_at":"2026-07-05T01:05:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:3R6PDX42FAFBXKTG3CEE25DG7K","target":"record","payload":{"canonical_record":{"source":{"id":"1908.08003","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-21T17:26:53Z","cross_cats_sorted":[],"title_canon_sha256":"96d9a91dc1526e38cbbf49c761f35b827e65662ea59db2d60cc4e2cf94a174ac","abstract_canon_sha256":"7bbbaf8aa211031a7511ff86cc73fb9dda894f6290a146b3158e8c74e8497715"},"schema_version":"1.0"},"canonical_sha256":"dc7cf1df9a280a1baa66d8884d7466fab032259e0fc1531ea7b6c391fb29bb0c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:05:36.084837Z","signature_b64":"gqG6MhV/PgbcvZrS2cCtJ5JO1mjeuhRvB4URD3uAzmb2A8PpcMxKa0nj8HzixLkuTQA22Fml8BjvX0aMtmWMBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dc7cf1df9a280a1baa66d8884d7466fab032259e0fc1531ea7b6c391fb29bb0c","last_reissued_at":"2026-07-05T01:05:36.084486Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:05:36.084486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.08003","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:05:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O6CPxEdRLbVj29I5GQAnpb9G9MVTpx3dj5AaCRjLmceobtZPZSWcGUadMBdGoK44u0AoU1czAQ5m1ARt+9ERAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T17:18:42.901642Z"},"content_sha256":"3513f091b162f7d445fa82290b2b94cc49d4ff653b58dfb1e59315647132d830","schema_version":"1.0","event_id":"sha256:3513f091b162f7d445fa82290b2b94cc49d4ff653b58dfb1e59315647132d830"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:3R6PDX42FAFBXKTG3CEE25DG7K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhancing quantum control by improving shape pulse generation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"John P. S. Peterson, Raymond Laflamme, Roberto S. Sarthour","submitted_at":"2019-08-21T17:26:53Z","abstract_excerpt":"Most quantum processors requires pulse sequences for controlling quantum states. Here, we present an alternative algorithm for computing an optimal pulse sequence in order to perform a specific task, being an implementation of a quantum gate or a quantum state preparation. In our method, we reduced drastically the number of parameters to be fitted, by using a limited number of functions as the modulations for the amplitude and phase of the radio-frequency pulses, and employed approximations to make the algorithm fast and scalable. We demonstrate the success of the proposed algorithm, by perfor"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08003","kind":"arxiv","version":1},"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/1908.08003/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":"2026-07-05T01:05:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ag4nR/1i9+sDixUENi6AGMcF11o0Ik+jV0RdAuMdgs2rq0uNpv9FJ1FnjbWfuuNy52gX28RzoZ5Vgo0HowonAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T17:18:42.902500Z"},"content_sha256":"f53016f894568a8d0884c4d1adf628718ced798e797a5ef8fa25a884b9e63255","schema_version":"1.0","event_id":"sha256:f53016f894568a8d0884c4d1adf628718ced798e797a5ef8fa25a884b9e63255"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3R6PDX42FAFBXKTG3CEE25DG7K/bundle.json","state_url":"https://pith.science/pith/3R6PDX42FAFBXKTG3CEE25DG7K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3R6PDX42FAFBXKTG3CEE25DG7K/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":"2026-08-16T17:18:42Z","links":{"resolver":"https://pith.science/pith/3R6PDX42FAFBXKTG3CEE25DG7K","bundle":"https://pith.science/pith/3R6PDX42FAFBXKTG3CEE25DG7K/bundle.json","state":"https://pith.science/pith/3R6PDX42FAFBXKTG3CEE25DG7K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3R6PDX42FAFBXKTG3CEE25DG7K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:3R6PDX42FAFBXKTG3CEE25DG7K","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":"7bbbaf8aa211031a7511ff86cc73fb9dda894f6290a146b3158e8c74e8497715","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-21T17:26:53Z","title_canon_sha256":"96d9a91dc1526e38cbbf49c761f35b827e65662ea59db2d60cc4e2cf94a174ac"},"schema_version":"1.0","source":{"id":"1908.08003","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08003","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08003v1","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08003","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_12","alias_value":"3R6PDX42FAFB","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_16","alias_value":"3R6PDX42FAFBXKTG","created_at":"2026-07-05T01:05:36Z"},{"alias_kind":"pith_short_8","alias_value":"3R6PDX42","created_at":"2026-07-05T01:05:36Z"}],"graph_snapshots":[{"event_id":"sha256:f53016f894568a8d0884c4d1adf628718ced798e797a5ef8fa25a884b9e63255","target":"graph","created_at":"2026-07-05T01:05:36Z","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/1908.08003/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Most quantum processors requires pulse sequences for controlling quantum states. Here, we present an alternative algorithm for computing an optimal pulse sequence in order to perform a specific task, being an implementation of a quantum gate or a quantum state preparation. In our method, we reduced drastically the number of parameters to be fitted, by using a limited number of functions as the modulations for the amplitude and phase of the radio-frequency pulses, and employed approximations to make the algorithm fast and scalable. We demonstrate the success of the proposed algorithm, by perfor","authors_text":"John P. S. Peterson, Raymond Laflamme, Roberto S. Sarthour","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-21T17:26:53Z","title":"Enhancing quantum control by improving shape pulse generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08003","kind":"arxiv","version":1},"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":"sha256:3513f091b162f7d445fa82290b2b94cc49d4ff653b58dfb1e59315647132d830","target":"record","created_at":"2026-07-05T01:05:36Z","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":"7bbbaf8aa211031a7511ff86cc73fb9dda894f6290a146b3158e8c74e8497715","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-08-21T17:26:53Z","title_canon_sha256":"96d9a91dc1526e38cbbf49c761f35b827e65662ea59db2d60cc4e2cf94a174ac"},"schema_version":"1.0","source":{"id":"1908.08003","kind":"arxiv","version":1}},"canonical_sha256":"dc7cf1df9a280a1baa66d8884d7466fab032259e0fc1531ea7b6c391fb29bb0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dc7cf1df9a280a1baa66d8884d7466fab032259e0fc1531ea7b6c391fb29bb0c","first_computed_at":"2026-07-05T01:05:36.084486Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:05:36.084486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gqG6MhV/PgbcvZrS2cCtJ5JO1mjeuhRvB4URD3uAzmb2A8PpcMxKa0nj8HzixLkuTQA22Fml8BjvX0aMtmWMBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:05:36.084837Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.08003","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3513f091b162f7d445fa82290b2b94cc49d4ff653b58dfb1e59315647132d830","sha256:f53016f894568a8d0884c4d1adf628718ced798e797a5ef8fa25a884b9e63255"],"state_sha256":"b4a099deec039a56d48c255fac38678d234f3e48db0e4f2b2bbd6e4ad9e16064"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2cxVen/ehWkeJJNCTiUvJNnjvf1J0z1P5zzqyqKIGwITZDkG09DgaLt0C2IA9il5Q/3RFsuFBJcJpXwjcJptCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T17:18:42.909113Z","bundle_sha256":"841e72ff4fddff69783bb15b7b085236b2a900e90a7d8671ad310d59e529ae10"}}