{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:OGYEXE5PUVFFYVGIEIFO6UJQYQ","short_pith_number":"pith:OGYEXE5P","canonical_record":{"source":{"id":"1501.04892","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-01-20T17:35:13Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.supr-con"],"title_canon_sha256":"b5f92e65ac361f43b2700b91b8b166e259d4be51b26d5fefba8ea846e2d183a7","abstract_canon_sha256":"8d3219387e5dd4de3f0195a503d085d8503f21b3f1ddbcf9911a1074c6712a7f"},"schema_version":"1.0"},"canonical_sha256":"71b04b93afa54a5c54c8220aef5130c42f23647e0c7093f7f281f09e77007e66","source":{"kind":"arxiv","id":"1501.04892","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.04892","created_at":"2026-05-18T01:35:56Z"},{"alias_kind":"arxiv_version","alias_value":"1501.04892v2","created_at":"2026-05-18T01:35:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.04892","created_at":"2026-05-18T01:35:56Z"},{"alias_kind":"pith_short_12","alias_value":"OGYEXE5PUVFF","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OGYEXE5PUVFFYVGI","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OGYEXE5P","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:OGYEXE5PUVFFYVGIEIFO6UJQYQ","target":"record","payload":{"canonical_record":{"source":{"id":"1501.04892","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-01-20T17:35:13Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.supr-con"],"title_canon_sha256":"b5f92e65ac361f43b2700b91b8b166e259d4be51b26d5fefba8ea846e2d183a7","abstract_canon_sha256":"8d3219387e5dd4de3f0195a503d085d8503f21b3f1ddbcf9911a1074c6712a7f"},"schema_version":"1.0"},"canonical_sha256":"71b04b93afa54a5c54c8220aef5130c42f23647e0c7093f7f281f09e77007e66","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:56.927364Z","signature_b64":"cjZtqeLkB4SsNuwGboxxeii7AClNYQMOMXE/Ic45/jx8hGawRVZBmXvvlpfhoZjsBFuu+zCQS93f+zGaxQjyBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"71b04b93afa54a5c54c8220aef5130c42f23647e0c7093f7f281f09e77007e66","last_reissued_at":"2026-05-18T01:35:56.926886Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:56.926886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.04892","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":"2026-05-18T01:35:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EDxr/7XsFdBPFqihhFkMzhUyG1x6fsh9rb6dKgb46gT4wRIoukhJWNDegcyulDGA0T+UIBCNhbv3BSGpbD3+Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T11:57:12.858727Z"},"content_sha256":"513e0d2afe396c03e3c4da8670a1d695177321cbc462e77921790f5e90df0ed1","schema_version":"1.0","event_id":"sha256:513e0d2afe396c03e3c4da8670a1d695177321cbc462e77921790f5e90df0ed1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:OGYEXE5PUVFFYVGIEIFO6UJQYQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A V-shape superconducting artificial atom based on two inductively coupled transmons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.supr-con"],"primary_cat":"quant-ph","authors_text":"A. K. Feofanov, B. K\\\"ung, C. Naud, \\'E. Dumur, N. Roch, O. Buisson, T. Weissl, W. Guichard","submitted_at":"2015-01-20T17:35:13Z","abstract_excerpt":"Circuit quantum electrodynamics systems are typically built from resonators and two-level artificial atoms, but the use of multi-level artificial atoms instead can enable promising applications in quantum technology. Here we present an implementation of a Josephson junction circuit dedicated to operate as a V-shape artificial atom. Based on a concept of two internal degrees of freedom, the device consists of two transmon qubits coupled by an inductance. The Josephson nonlinearity introduces a strong diagonal coupling between the two degrees of freedom that finds applications in quantum non-dem"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.04892","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":"2026-05-18T01:35:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G1PFlcBIplMDgwUzPt9HBW7kRjYhH/e/rwOP4D+IeujoQO+Ue2Cut4vIY6AUHvRdKrEXlLNkjB1RXllHtwEdAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T11:57:12.859389Z"},"content_sha256":"a17e7962c16166a205520336005e5b0d6384f4165cb0e79eb35ec5956a68b4a2","schema_version":"1.0","event_id":"sha256:a17e7962c16166a205520336005e5b0d6384f4165cb0e79eb35ec5956a68b4a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OGYEXE5PUVFFYVGIEIFO6UJQYQ/bundle.json","state_url":"https://pith.science/pith/OGYEXE5PUVFFYVGIEIFO6UJQYQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OGYEXE5PUVFFYVGIEIFO6UJQYQ/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":"2026-06-06T11:57:12Z","links":{"resolver":"https://pith.science/pith/OGYEXE5PUVFFYVGIEIFO6UJQYQ","bundle":"https://pith.science/pith/OGYEXE5PUVFFYVGIEIFO6UJQYQ/bundle.json","state":"https://pith.science/pith/OGYEXE5PUVFFYVGIEIFO6UJQYQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OGYEXE5PUVFFYVGIEIFO6UJQYQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:OGYEXE5PUVFFYVGIEIFO6UJQYQ","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":"8d3219387e5dd4de3f0195a503d085d8503f21b3f1ddbcf9911a1074c6712a7f","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-01-20T17:35:13Z","title_canon_sha256":"b5f92e65ac361f43b2700b91b8b166e259d4be51b26d5fefba8ea846e2d183a7"},"schema_version":"1.0","source":{"id":"1501.04892","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.04892","created_at":"2026-05-18T01:35:56Z"},{"alias_kind":"arxiv_version","alias_value":"1501.04892v2","created_at":"2026-05-18T01:35:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.04892","created_at":"2026-05-18T01:35:56Z"},{"alias_kind":"pith_short_12","alias_value":"OGYEXE5PUVFF","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OGYEXE5PUVFFYVGI","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OGYEXE5P","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:a17e7962c16166a205520336005e5b0d6384f4165cb0e79eb35ec5956a68b4a2","target":"graph","created_at":"2026-05-18T01:35:56Z","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":"Circuit quantum electrodynamics systems are typically built from resonators and two-level artificial atoms, but the use of multi-level artificial atoms instead can enable promising applications in quantum technology. Here we present an implementation of a Josephson junction circuit dedicated to operate as a V-shape artificial atom. Based on a concept of two internal degrees of freedom, the device consists of two transmon qubits coupled by an inductance. The Josephson nonlinearity introduces a strong diagonal coupling between the two degrees of freedom that finds applications in quantum non-dem","authors_text":"A. K. Feofanov, B. K\\\"ung, C. Naud, \\'E. Dumur, N. Roch, O. Buisson, T. Weissl, W. Guichard","cross_cats":["cond-mat.mes-hall","cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-01-20T17:35:13Z","title":"A V-shape superconducting artificial atom based on two inductively coupled transmons"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.04892","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":"sha256:513e0d2afe396c03e3c4da8670a1d695177321cbc462e77921790f5e90df0ed1","target":"record","created_at":"2026-05-18T01:35:56Z","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":"8d3219387e5dd4de3f0195a503d085d8503f21b3f1ddbcf9911a1074c6712a7f","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-01-20T17:35:13Z","title_canon_sha256":"b5f92e65ac361f43b2700b91b8b166e259d4be51b26d5fefba8ea846e2d183a7"},"schema_version":"1.0","source":{"id":"1501.04892","kind":"arxiv","version":2}},"canonical_sha256":"71b04b93afa54a5c54c8220aef5130c42f23647e0c7093f7f281f09e77007e66","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71b04b93afa54a5c54c8220aef5130c42f23647e0c7093f7f281f09e77007e66","first_computed_at":"2026-05-18T01:35:56.926886Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:56.926886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cjZtqeLkB4SsNuwGboxxeii7AClNYQMOMXE/Ic45/jx8hGawRVZBmXvvlpfhoZjsBFuu+zCQS93f+zGaxQjyBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:56.927364Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.04892","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:513e0d2afe396c03e3c4da8670a1d695177321cbc462e77921790f5e90df0ed1","sha256:a17e7962c16166a205520336005e5b0d6384f4165cb0e79eb35ec5956a68b4a2"],"state_sha256":"a03bdf5b3ed7cfad5da0a263a0967e79b06259bb67cc709c60808afc90bbc5da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O10B1PdiAFO48UGy2K4i/4LJJtfFyZIxTAgYOAjmdzBSu4dG/l2VfyHye1G/Lq34g3E7T3N6/HOfb4eDpyGwAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T11:57:12.863061Z","bundle_sha256":"bfdcd4a4030eda836300992bddde189197ff5895b13a3c2bda4d0cb526accd5d"}}