{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:RV2DO6JICBQ7B7SJKBJKKCRDNR","short_pith_number":"pith:RV2DO6JI","canonical_record":{"source":{"id":"2211.05328","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-11-10T04:23:28Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"292582631282fe030a6dfea7bf86fcacdb134c6550c3a56bdee2e7cb6f276374","abstract_canon_sha256":"d2f13ecdb4b32d71f6b2c42ff1258754d795997af1c3d3e0afec52b00989d843"},"schema_version":"1.0"},"canonical_sha256":"8d743779281061f0fe495052a50a236c5c07071dcc9a4de8076a26f7b969c5bb","source":{"kind":"arxiv","id":"2211.05328","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.05328","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"arxiv_version","alias_value":"2211.05328v1","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.05328","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"pith_short_12","alias_value":"RV2DO6JICBQ7","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"pith_short_16","alias_value":"RV2DO6JICBQ7B7SJ","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"pith_short_8","alias_value":"RV2DO6JI","created_at":"2026-07-05T05:21:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:RV2DO6JICBQ7B7SJKBJKKCRDNR","target":"record","payload":{"canonical_record":{"source":{"id":"2211.05328","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-11-10T04:23:28Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"292582631282fe030a6dfea7bf86fcacdb134c6550c3a56bdee2e7cb6f276374","abstract_canon_sha256":"d2f13ecdb4b32d71f6b2c42ff1258754d795997af1c3d3e0afec52b00989d843"},"schema_version":"1.0"},"canonical_sha256":"8d743779281061f0fe495052a50a236c5c07071dcc9a4de8076a26f7b969c5bb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:21:04.254388Z","signature_b64":"6JmvIlFonitHgKq//6OhFo00GATA121ttumOAvAXL0MtZCq3Yb89P0ey+WF6vD+KcOx96jI01qNHOwp8nFpCBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8d743779281061f0fe495052a50a236c5c07071dcc9a4de8076a26f7b969c5bb","last_reissued_at":"2026-07-05T05:21:04.253912Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:21:04.253912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2211.05328","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":"2026-07-05T05:21:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+jwwb+q3sCk2A9V55G0WytRw+ATXGILGDUAldm+ZPfHwppuThujQSr8wBm9BmZo1X9TBlNH6EySNQcP5juW/Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T13:20:12.151977Z"},"content_sha256":"2f48f959ff84a84a16228dddbe9b4eeedd80799ed7fc06e709d82882d3ec010e","schema_version":"1.0","event_id":"sha256:2f48f959ff84a84a16228dddbe9b4eeedd80799ed7fc06e709d82882d3ec010e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:RV2DO6JICBQ7B7SJKBJKKCRDNR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"X-parameter based design and simulation of Josephson traveling-wave parametric amplifiers for quantum computing applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"quant-ph","authors_text":"David E. Root, Kaidong Peng, Kevin P. O'Brien, Philip Krantz, Rick Poore","submitted_at":"2022-11-10T04:23:28Z","abstract_excerpt":"We present an efficient, accurate, and comprehensive analysis framework for generic, multi-port nonlinear parametric circuits, in the presence of dissipation from lossy circuit components, based on \"quantum-adapted\" X-parameters. We apply this method to Josephson traveling-wave parametric amplifiers (JTWPAs) - a key component in superconducting and spin qubit quantum computing architectures - which are challenging to model accurately due to their thousands of linear and nonlinear circuit components. X-parameters are generated from a harmonic balance solution of the classical nonlinear circuit "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.05328","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/2211.05328/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":"2026-07-05T05:21:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I1+b/9OC2WqWhAAZb6Oz0ntS4MHZ2gM5yzxWuZHMAjMtL3JqeRRf2q0gPo0yZ3iNp1bBqf/3qTIUV/jjufdmAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T13:20:12.152519Z"},"content_sha256":"acc4b5f9b0294c8960c5f6ce100835ac12680753102f4105296837d4703b225c","schema_version":"1.0","event_id":"sha256:acc4b5f9b0294c8960c5f6ce100835ac12680753102f4105296837d4703b225c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RV2DO6JICBQ7B7SJKBJKKCRDNR/bundle.json","state_url":"https://pith.science/pith/RV2DO6JICBQ7B7SJKBJKKCRDNR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RV2DO6JICBQ7B7SJKBJKKCRDNR/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":"2026-08-21T13:20:12Z","links":{"resolver":"https://pith.science/pith/RV2DO6JICBQ7B7SJKBJKKCRDNR","bundle":"https://pith.science/pith/RV2DO6JICBQ7B7SJKBJKKCRDNR/bundle.json","state":"https://pith.science/pith/RV2DO6JICBQ7B7SJKBJKKCRDNR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RV2DO6JICBQ7B7SJKBJKKCRDNR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:RV2DO6JICBQ7B7SJKBJKKCRDNR","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":"d2f13ecdb4b32d71f6b2c42ff1258754d795997af1c3d3e0afec52b00989d843","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-11-10T04:23:28Z","title_canon_sha256":"292582631282fe030a6dfea7bf86fcacdb134c6550c3a56bdee2e7cb6f276374"},"schema_version":"1.0","source":{"id":"2211.05328","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2211.05328","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"arxiv_version","alias_value":"2211.05328v1","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2211.05328","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"pith_short_12","alias_value":"RV2DO6JICBQ7","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"pith_short_16","alias_value":"RV2DO6JICBQ7B7SJ","created_at":"2026-07-05T05:21:04Z"},{"alias_kind":"pith_short_8","alias_value":"RV2DO6JI","created_at":"2026-07-05T05:21:04Z"}],"graph_snapshots":[{"event_id":"sha256:acc4b5f9b0294c8960c5f6ce100835ac12680753102f4105296837d4703b225c","target":"graph","created_at":"2026-07-05T05:21:04Z","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/2211.05328/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present an efficient, accurate, and comprehensive analysis framework for generic, multi-port nonlinear parametric circuits, in the presence of dissipation from lossy circuit components, based on \"quantum-adapted\" X-parameters. We apply this method to Josephson traveling-wave parametric amplifiers (JTWPAs) - a key component in superconducting and spin qubit quantum computing architectures - which are challenging to model accurately due to their thousands of linear and nonlinear circuit components. X-parameters are generated from a harmonic balance solution of the classical nonlinear circuit ","authors_text":"David E. Root, Kaidong Peng, Kevin P. O'Brien, Philip Krantz, Rick Poore","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-11-10T04:23:28Z","title":"X-parameter based design and simulation of Josephson traveling-wave parametric amplifiers for quantum computing applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.05328","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":"sha256:2f48f959ff84a84a16228dddbe9b4eeedd80799ed7fc06e709d82882d3ec010e","target":"record","created_at":"2026-07-05T05:21:04Z","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":"d2f13ecdb4b32d71f6b2c42ff1258754d795997af1c3d3e0afec52b00989d843","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-11-10T04:23:28Z","title_canon_sha256":"292582631282fe030a6dfea7bf86fcacdb134c6550c3a56bdee2e7cb6f276374"},"schema_version":"1.0","source":{"id":"2211.05328","kind":"arxiv","version":1}},"canonical_sha256":"8d743779281061f0fe495052a50a236c5c07071dcc9a4de8076a26f7b969c5bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8d743779281061f0fe495052a50a236c5c07071dcc9a4de8076a26f7b969c5bb","first_computed_at":"2026-07-05T05:21:04.253912Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:21:04.253912Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6JmvIlFonitHgKq//6OhFo00GATA121ttumOAvAXL0MtZCq3Yb89P0ey+WF6vD+KcOx96jI01qNHOwp8nFpCBw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:21:04.254388Z","signed_message":"canonical_sha256_bytes"},"source_id":"2211.05328","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f48f959ff84a84a16228dddbe9b4eeedd80799ed7fc06e709d82882d3ec010e","sha256:acc4b5f9b0294c8960c5f6ce100835ac12680753102f4105296837d4703b225c"],"state_sha256":"6955a0235e315ceb212c51033c88b11dede27d625ff47472d8dcc632be137c58"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I4Dg6JRKGhwR0SAeTDTBPzAKHokPnBWtIn/iDMwUNY36eJoWu1dkicRs+3L0MCOWqkKSfkFGXJllvElfCLjGBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T13:20:12.156408Z","bundle_sha256":"11895523662dcf76775a07ec5df68c5b88a6edafed11054c3400e6496ef91d94"}}