{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:WWXQHLVTR3AHMSAQMKWCIJSRMP","short_pith_number":"pith:WWXQHLVT","canonical_record":{"source":{"id":"2602.20002","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-02-23T16:08:58Z","cross_cats_sorted":[],"title_canon_sha256":"de8a869fc3b0b94b26de950f2ab087ba77d9a4b43dff6cb6cef98372d9d3d757","abstract_canon_sha256":"fe448beb8915ff7d09fadfb8dd0e592206e4573e3b842787a020b85c2cf5902c"},"schema_version":"1.0"},"canonical_sha256":"b5af03aeb38ec076481062ac24265163f48cf80aad7e693f17612814f1c1789c","source":{"kind":"arxiv","id":"2602.20002","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.20002","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"arxiv_version","alias_value":"2602.20002v2","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.20002","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"pith_short_12","alias_value":"WWXQHLVTR3AH","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"pith_short_16","alias_value":"WWXQHLVTR3AHMSAQ","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"pith_short_8","alias_value":"WWXQHLVT","created_at":"2026-06-23T03:13:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:WWXQHLVTR3AHMSAQMKWCIJSRMP","target":"record","payload":{"canonical_record":{"source":{"id":"2602.20002","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-02-23T16:08:58Z","cross_cats_sorted":[],"title_canon_sha256":"de8a869fc3b0b94b26de950f2ab087ba77d9a4b43dff6cb6cef98372d9d3d757","abstract_canon_sha256":"fe448beb8915ff7d09fadfb8dd0e592206e4573e3b842787a020b85c2cf5902c"},"schema_version":"1.0"},"canonical_sha256":"b5af03aeb38ec076481062ac24265163f48cf80aad7e693f17612814f1c1789c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T03:13:54.740669Z","signature_b64":"/weLX00ZZfDqLlJ2IJsCGhoSdnSJF0EjGfRUXiG4Gd1dNNXZYC2kL4qQ4nbyUydR75ZplTuEC6cfelh2e4sWCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b5af03aeb38ec076481062ac24265163f48cf80aad7e693f17612814f1c1789c","last_reissued_at":"2026-06-23T03:13:54.740169Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T03:13:54.740169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.20002","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":"2026-06-23T03:13:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"73bKmdVTQeEwsNonupXH2KFr6HumEhzcp0/ECo6c2Ram7rTzZN4Iir00G5eJTJJ4xOYe+xSRa1rz61mQ810ECg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T16:04:58.284235Z"},"content_sha256":"117b98ea29bc8b24412718cd85d70845bbece525726fc3d6ef032fdd0e5e097b","schema_version":"1.0","event_id":"sha256:117b98ea29bc8b24412718cd85d70845bbece525726fc3d6ef032fdd0e5e097b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:WWXQHLVTR3AHMSAQMKWCIJSRMP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electrical post-fabrication tuning of aluminum Josephson junctions at room temperature","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Andreas Nylander, Christian Kri\\v{z}an, Emil Hogedal, Giovanna Tancredi, Hadi Khaksaran, Halld\\'or Jakobsson, Irshad Ahmad, Janka Bizn\\'arov\\'a, Jonas Bylander, Mamta Dahiya, Marcus Rommel, Maurizio Toselli, Nermin Trnjanin, Per Delsing","submitted_at":"2026-02-23T16:08:58Z","abstract_excerpt":"Josephson junctions are key elements of superconducting quantum technology, serving as the core building blocks of superconducting qubits. We present an experimental study on room-temperature electrical tuning of aluminum junctions, showing that voltage pulses can controllably increase their resistance and adjust the Josephson energy while maintaining qubit quality factors above 1 million. We find that the rate of resistance increase scales exponentially with pulse amplitude during manipulation. Following the manipulation, the resistance increases spontaneously through contributions proportion"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.20002","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2602.20002/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":"2026-06-23T03:13:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ix84zzRF9jGrGlM27hWOLv2TpwD56NHWXEkWo50WkQBDoEj2oKzw71P9qG9Dn8GycNF63mkzPXraP3KE07i6DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T16:04:58.284627Z"},"content_sha256":"181ceba3a44ea7df728fdd9bad7e52368082bf524f1dc82d3ee1dd0abdd5d683","schema_version":"1.0","event_id":"sha256:181ceba3a44ea7df728fdd9bad7e52368082bf524f1dc82d3ee1dd0abdd5d683"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WWXQHLVTR3AHMSAQMKWCIJSRMP/bundle.json","state_url":"https://pith.science/pith/WWXQHLVTR3AHMSAQMKWCIJSRMP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WWXQHLVTR3AHMSAQMKWCIJSRMP/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":"2026-06-30T16:04:58Z","links":{"resolver":"https://pith.science/pith/WWXQHLVTR3AHMSAQMKWCIJSRMP","bundle":"https://pith.science/pith/WWXQHLVTR3AHMSAQMKWCIJSRMP/bundle.json","state":"https://pith.science/pith/WWXQHLVTR3AHMSAQMKWCIJSRMP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WWXQHLVTR3AHMSAQMKWCIJSRMP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:WWXQHLVTR3AHMSAQMKWCIJSRMP","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":"fe448beb8915ff7d09fadfb8dd0e592206e4573e3b842787a020b85c2cf5902c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-02-23T16:08:58Z","title_canon_sha256":"de8a869fc3b0b94b26de950f2ab087ba77d9a4b43dff6cb6cef98372d9d3d757"},"schema_version":"1.0","source":{"id":"2602.20002","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.20002","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"arxiv_version","alias_value":"2602.20002v2","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.20002","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"pith_short_12","alias_value":"WWXQHLVTR3AH","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"pith_short_16","alias_value":"WWXQHLVTR3AHMSAQ","created_at":"2026-06-23T03:13:54Z"},{"alias_kind":"pith_short_8","alias_value":"WWXQHLVT","created_at":"2026-06-23T03:13:54Z"}],"graph_snapshots":[{"event_id":"sha256:181ceba3a44ea7df728fdd9bad7e52368082bf524f1dc82d3ee1dd0abdd5d683","target":"graph","created_at":"2026-06-23T03:13:54Z","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/2602.20002/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Josephson junctions are key elements of superconducting quantum technology, serving as the core building blocks of superconducting qubits. We present an experimental study on room-temperature electrical tuning of aluminum junctions, showing that voltage pulses can controllably increase their resistance and adjust the Josephson energy while maintaining qubit quality factors above 1 million. We find that the rate of resistance increase scales exponentially with pulse amplitude during manipulation. Following the manipulation, the resistance increases spontaneously through contributions proportion","authors_text":"Andreas Nylander, Christian Kri\\v{z}an, Emil Hogedal, Giovanna Tancredi, Hadi Khaksaran, Halld\\'or Jakobsson, Irshad Ahmad, Janka Bizn\\'arov\\'a, Jonas Bylander, Mamta Dahiya, Marcus Rommel, Maurizio Toselli, Nermin Trnjanin, Per Delsing","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-02-23T16:08:58Z","title":"Electrical post-fabrication tuning of aluminum Josephson junctions at room temperature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.20002","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":"sha256:117b98ea29bc8b24412718cd85d70845bbece525726fc3d6ef032fdd0e5e097b","target":"record","created_at":"2026-06-23T03:13:54Z","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":"fe448beb8915ff7d09fadfb8dd0e592206e4573e3b842787a020b85c2cf5902c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-02-23T16:08:58Z","title_canon_sha256":"de8a869fc3b0b94b26de950f2ab087ba77d9a4b43dff6cb6cef98372d9d3d757"},"schema_version":"1.0","source":{"id":"2602.20002","kind":"arxiv","version":2}},"canonical_sha256":"b5af03aeb38ec076481062ac24265163f48cf80aad7e693f17612814f1c1789c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b5af03aeb38ec076481062ac24265163f48cf80aad7e693f17612814f1c1789c","first_computed_at":"2026-06-23T03:13:54.740169Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T03:13:54.740169Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/weLX00ZZfDqLlJ2IJsCGhoSdnSJF0EjGfRUXiG4Gd1dNNXZYC2kL4qQ4nbyUydR75ZplTuEC6cfelh2e4sWCw==","signature_status":"signed_v1","signed_at":"2026-06-23T03:13:54.740669Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.20002","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:117b98ea29bc8b24412718cd85d70845bbece525726fc3d6ef032fdd0e5e097b","sha256:181ceba3a44ea7df728fdd9bad7e52368082bf524f1dc82d3ee1dd0abdd5d683"],"state_sha256":"872c2d2aaaabea49709413bf7be8b522c431aaad9a88795d4fd84c206d48f96e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zQmBEpLnRmlYog0WKGgYFfgXaoxUx02yNdALM7hV3fm0PS3LV+kq2ddV2FXWzkjKW8dTNoX2yMJElpF0UXj0DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T16:04:58.286605Z","bundle_sha256":"cd371737fdd2e0c0f5451b6b531633eb6cdbfa8181210df7c5969b63aa5f095a"}}