{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:QVSLYFINGFW57JG4JSYEJTXATE","short_pith_number":"pith:QVSLYFIN","canonical_record":{"source":{"id":"2608.02086","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-03T11:44:42Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"663ac6550c286d0f7da3cfe950a2af491cc5931ee8c2d1c165453594db6de959","abstract_canon_sha256":"9d4099321f463b4065713190946d5872771b1fb283e301231367079e0c76452d"},"schema_version":"1.0"},"canonical_sha256":"8564bc150d316ddfa4dc4cb044cee0990a9f887ec0f5527df50e6673599d060d","source":{"kind":"arxiv","id":"2608.02086","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.02086","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"arxiv_version","alias_value":"2608.02086v1","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.02086","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"pith_short_12","alias_value":"QVSLYFINGFW5","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"pith_short_16","alias_value":"QVSLYFINGFW57JG4","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"pith_short_8","alias_value":"QVSLYFIN","created_at":"2026-08-04T02:10:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:QVSLYFINGFW57JG4JSYEJTXATE","target":"record","payload":{"canonical_record":{"source":{"id":"2608.02086","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-03T11:44:42Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"663ac6550c286d0f7da3cfe950a2af491cc5931ee8c2d1c165453594db6de959","abstract_canon_sha256":"9d4099321f463b4065713190946d5872771b1fb283e301231367079e0c76452d"},"schema_version":"1.0"},"canonical_sha256":"8564bc150d316ddfa4dc4cb044cee0990a9f887ec0f5527df50e6673599d060d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-04T02:10:49.195014Z","signature_b64":"pCSrRcx6S/apN5Wj7i2OwmWKQl4iTjmUR7ULbS/5Rhsoyvm/zNbPSIp0AJLPIOJ3eJCe7X4hDgmLhMOF6gE1CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8564bc150d316ddfa4dc4cb044cee0990a9f887ec0f5527df50e6673599d060d","last_reissued_at":"2026-08-04T02:10:49.193541Z","signature_status":"signed_v1","first_computed_at":"2026-08-04T02:10:49.193541Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.02086","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":"2026-08-04T02:10:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tMzjNhxB903RrwFsjtmWPcOKJY4sNnaq0wXgy1hhlq21HFBkcV99UNZbH72Y0agvC60W4oJiNG4KD5m0vmO6DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T04:00:20.657959Z"},"content_sha256":"7d95fa3f544f8fc578161f4bbee5d77bb0400a5383a481dd3f79f266fcda2ce6","schema_version":"1.0","event_id":"sha256:7d95fa3f544f8fc578161f4bbee5d77bb0400a5383a481dd3f79f266fcda2ce6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:QVSLYFINGFW57JG4JSYEJTXATE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adaptive Spectroscopy of Fast Two-Level-System Dynamics in Superconducting Qubits","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Bethany M. Niedzielski, David Pahl, Fabrizio Berritta, Gabriel Cutter, Jan A. Krzywda, Jeffrey A. Grover, Kyle Serniak, Lukas Pahl, Max Hays, Michael Gingras, Mollie E. Schwartz, Paul Buttles, Robert McDermott, Shravan Patel, Spencer Weeden, Stanislav Eilhart, William D. Oliver, William P. Banner","submitted_at":"2026-08-03T11:44:42Z","abstract_excerpt":"Parasitic two-level-system (TLS) defects are a major source of energy relaxation and temporal instability in superconducting quantum processors. Our sub-second adaptive spectroscopy reveals telegraphic switching of TLSs with a characteristic timescale of a few seconds and spectral diffusion with diffusivity $D \\approx 0.9~\\mathrm{MHz}^2/\\mathrm{s}$. These timescales are about $3 \\times 10^2$ times faster than what is observed in conventional nonadaptive spectroscopy, which typically requires hours of measurement time. We resolve such fast dynamics on a field-programmable gate array (FPGA)-base"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.02086","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/2608.02086/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":"2026-08-04T02:10:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zndUMDlG5FcodO6PqPiiwl++h9SvMcCprf6lwpPJXsTtIUmzdrYpceKileKc5ygdtU8jhmrpBXTFSHCtTOmRAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T04:00:20.658524Z"},"content_sha256":"362e32a58dc801b93930b1107fff61bed5928f9ab803e1575410da7535b9b588","schema_version":"1.0","event_id":"sha256:362e32a58dc801b93930b1107fff61bed5928f9ab803e1575410da7535b9b588"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QVSLYFINGFW57JG4JSYEJTXATE/bundle.json","state_url":"https://pith.science/pith/QVSLYFINGFW57JG4JSYEJTXATE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QVSLYFINGFW57JG4JSYEJTXATE/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":"2026-08-05T04:00:20Z","links":{"resolver":"https://pith.science/pith/QVSLYFINGFW57JG4JSYEJTXATE","bundle":"https://pith.science/pith/QVSLYFINGFW57JG4JSYEJTXATE/bundle.json","state":"https://pith.science/pith/QVSLYFINGFW57JG4JSYEJTXATE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QVSLYFINGFW57JG4JSYEJTXATE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QVSLYFINGFW57JG4JSYEJTXATE","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":"9d4099321f463b4065713190946d5872771b1fb283e301231367079e0c76452d","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-03T11:44:42Z","title_canon_sha256":"663ac6550c286d0f7da3cfe950a2af491cc5931ee8c2d1c165453594db6de959"},"schema_version":"1.0","source":{"id":"2608.02086","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.02086","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"arxiv_version","alias_value":"2608.02086v1","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.02086","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"pith_short_12","alias_value":"QVSLYFINGFW5","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"pith_short_16","alias_value":"QVSLYFINGFW57JG4","created_at":"2026-08-04T02:10:49Z"},{"alias_kind":"pith_short_8","alias_value":"QVSLYFIN","created_at":"2026-08-04T02:10:49Z"}],"graph_snapshots":[{"event_id":"sha256:362e32a58dc801b93930b1107fff61bed5928f9ab803e1575410da7535b9b588","target":"graph","created_at":"2026-08-04T02:10:49Z","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/2608.02086/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Parasitic two-level-system (TLS) defects are a major source of energy relaxation and temporal instability in superconducting quantum processors. Our sub-second adaptive spectroscopy reveals telegraphic switching of TLSs with a characteristic timescale of a few seconds and spectral diffusion with diffusivity $D \\approx 0.9~\\mathrm{MHz}^2/\\mathrm{s}$. These timescales are about $3 \\times 10^2$ times faster than what is observed in conventional nonadaptive spectroscopy, which typically requires hours of measurement time. We resolve such fast dynamics on a field-programmable gate array (FPGA)-base","authors_text":"Bethany M. Niedzielski, David Pahl, Fabrizio Berritta, Gabriel Cutter, Jan A. Krzywda, Jeffrey A. Grover, Kyle Serniak, Lukas Pahl, Max Hays, Michael Gingras, Mollie E. Schwartz, Paul Buttles, Robert McDermott, Shravan Patel, Spencer Weeden, Stanislav Eilhart, William D. Oliver, William P. Banner","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-03T11:44:42Z","title":"Adaptive Spectroscopy of Fast Two-Level-System Dynamics in Superconducting Qubits"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.02086","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":"sha256:7d95fa3f544f8fc578161f4bbee5d77bb0400a5383a481dd3f79f266fcda2ce6","target":"record","created_at":"2026-08-04T02:10:49Z","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":"9d4099321f463b4065713190946d5872771b1fb283e301231367079e0c76452d","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-08-03T11:44:42Z","title_canon_sha256":"663ac6550c286d0f7da3cfe950a2af491cc5931ee8c2d1c165453594db6de959"},"schema_version":"1.0","source":{"id":"2608.02086","kind":"arxiv","version":1}},"canonical_sha256":"8564bc150d316ddfa4dc4cb044cee0990a9f887ec0f5527df50e6673599d060d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8564bc150d316ddfa4dc4cb044cee0990a9f887ec0f5527df50e6673599d060d","first_computed_at":"2026-08-04T02:10:49.193541Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-04T02:10:49.193541Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pCSrRcx6S/apN5Wj7i2OwmWKQl4iTjmUR7ULbS/5Rhsoyvm/zNbPSIp0AJLPIOJ3eJCe7X4hDgmLhMOF6gE1CQ==","signature_status":"signed_v1","signed_at":"2026-08-04T02:10:49.195014Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.02086","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d95fa3f544f8fc578161f4bbee5d77bb0400a5383a481dd3f79f266fcda2ce6","sha256:362e32a58dc801b93930b1107fff61bed5928f9ab803e1575410da7535b9b588"],"state_sha256":"add9f56353a6276963c637de48f17ce0597314867942c41b753aaac54617ba4c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x+b3TnIoAZiZkmuscSpnIFP8KGNMa25Fp9lq2oqP87FrCCODEgCfSCxeIg5tzcNIR5oYQzeP/R8Px9231Nf3Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T04:00:20.668379Z","bundle_sha256":"867973f88bf3251e9968ea37e7df2135c63247548a9222af2879239466bf80c0"}}