{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:3LVK6DS5AS4FTH2BP47VAO4A27","short_pith_number":"pith:3LVK6DS5","canonical_record":{"source":{"id":"2308.07672","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-08-15T09:40:40Z","cross_cats_sorted":[],"title_canon_sha256":"0cf98003d601a1d5e7e3e54cc2b786b573d9bc292ea2844661f0997db0628540","abstract_canon_sha256":"3a096543ab7088cefe9c5a2be26a1c402ac769946d088d72d000267c6ffc9a54"},"schema_version":"1.0"},"canonical_sha256":"daeaaf0e5d04b8599f417f3f503b80d7d6b08336f88db46549e8f2ffc4a4335f","source":{"kind":"arxiv","id":"2308.07672","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.07672","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"arxiv_version","alias_value":"2308.07672v2","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.07672","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"pith_short_12","alias_value":"3LVK6DS5AS4F","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"pith_short_16","alias_value":"3LVK6DS5AS4FTH2B","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"pith_short_8","alias_value":"3LVK6DS5","created_at":"2026-07-05T07:55:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:3LVK6DS5AS4FTH2BP47VAO4A27","target":"record","payload":{"canonical_record":{"source":{"id":"2308.07672","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-08-15T09:40:40Z","cross_cats_sorted":[],"title_canon_sha256":"0cf98003d601a1d5e7e3e54cc2b786b573d9bc292ea2844661f0997db0628540","abstract_canon_sha256":"3a096543ab7088cefe9c5a2be26a1c402ac769946d088d72d000267c6ffc9a54"},"schema_version":"1.0"},"canonical_sha256":"daeaaf0e5d04b8599f417f3f503b80d7d6b08336f88db46549e8f2ffc4a4335f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:55:44.831939Z","signature_b64":"v3VFKOq4pYmO3a+HPxP7x07DUB5/tC3FgJoU7llMAg4UKJA4iYt/DK1VOlB9ukTb0jilrthXrjelGnYsrjWkBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"daeaaf0e5d04b8599f417f3f503b80d7d6b08336f88db46549e8f2ffc4a4335f","last_reissued_at":"2026-07-05T07:55:44.831536Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:55:44.831536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2308.07672","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":"2026-07-05T07:55:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NaLAMaZS+tII0O15s8aioUFyfojkf8HYbqCFIr6JEngd9yqrMAuaeTCZDMnZCvXP8BoIoiouPrlQD3RxjRfdDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T18:18:45.583335Z"},"content_sha256":"08ecc3b384cb311ad9a7c7d6a6b57df26679088965c87d05a8cabe7ed190bd88","schema_version":"1.0","event_id":"sha256:08ecc3b384cb311ad9a7c7d6a6b57df26679088965c87d05a8cabe7ed190bd88"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:3LVK6DS5AS4FTH2BP47VAO4A27","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Penning micro-trap for quantum computing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Amado Bautista-Salvador, Celeste Torkzaban, Chris Axline, Christian Ospelkaus, Daniel Kienzler, Jonathan Home, Martin Stadler, Pavel Hrmo, Robin Oswald, Shreyans Jain, Tobias S\\\"agesser","submitted_at":"2023-08-15T09:40:40Z","abstract_excerpt":"Trapped ions in radio-frequency traps are among the leading approaches for realizing quantum computers, due to high-fidelity quantum gates and long coherence times. However, the use of radio-frequencies presents a number of challenges to scaling, including requiring compatibility of chips with high voltages, managing power dissipation and restricting transport and placement of ions. By replacing the radio-frequency field with a 3 T magnetic field, we here realize a micro-fabricated Penning ion trap which removes these restrictions. We demonstrate full quantum control of an ion in this setting,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.07672","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/2308.07672/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":"2026-07-05T07:55:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZagB6+G9310hONFXNFHJSnqWjhjitpWPowhxU+1O+0QPeudbiVT7pAKryDbCePW1lASM2KZ4n5F7CGP9eWZwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T18:18:45.583853Z"},"content_sha256":"559a92f06289b28cb3154faa28e45918c637ab571f82b3c56ed46098bd06a34f","schema_version":"1.0","event_id":"sha256:559a92f06289b28cb3154faa28e45918c637ab571f82b3c56ed46098bd06a34f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3LVK6DS5AS4FTH2BP47VAO4A27/bundle.json","state_url":"https://pith.science/pith/3LVK6DS5AS4FTH2BP47VAO4A27/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3LVK6DS5AS4FTH2BP47VAO4A27/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":"2026-08-23T18:18:45Z","links":{"resolver":"https://pith.science/pith/3LVK6DS5AS4FTH2BP47VAO4A27","bundle":"https://pith.science/pith/3LVK6DS5AS4FTH2BP47VAO4A27/bundle.json","state":"https://pith.science/pith/3LVK6DS5AS4FTH2BP47VAO4A27/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3LVK6DS5AS4FTH2BP47VAO4A27/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:3LVK6DS5AS4FTH2BP47VAO4A27","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":"3a096543ab7088cefe9c5a2be26a1c402ac769946d088d72d000267c6ffc9a54","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-08-15T09:40:40Z","title_canon_sha256":"0cf98003d601a1d5e7e3e54cc2b786b573d9bc292ea2844661f0997db0628540"},"schema_version":"1.0","source":{"id":"2308.07672","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.07672","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"arxiv_version","alias_value":"2308.07672v2","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.07672","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"pith_short_12","alias_value":"3LVK6DS5AS4F","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"pith_short_16","alias_value":"3LVK6DS5AS4FTH2B","created_at":"2026-07-05T07:55:44Z"},{"alias_kind":"pith_short_8","alias_value":"3LVK6DS5","created_at":"2026-07-05T07:55:44Z"}],"graph_snapshots":[{"event_id":"sha256:559a92f06289b28cb3154faa28e45918c637ab571f82b3c56ed46098bd06a34f","target":"graph","created_at":"2026-07-05T07:55:44Z","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/2308.07672/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Trapped ions in radio-frequency traps are among the leading approaches for realizing quantum computers, due to high-fidelity quantum gates and long coherence times. However, the use of radio-frequencies presents a number of challenges to scaling, including requiring compatibility of chips with high voltages, managing power dissipation and restricting transport and placement of ions. By replacing the radio-frequency field with a 3 T magnetic field, we here realize a micro-fabricated Penning ion trap which removes these restrictions. We demonstrate full quantum control of an ion in this setting,","authors_text":"Amado Bautista-Salvador, Celeste Torkzaban, Chris Axline, Christian Ospelkaus, Daniel Kienzler, Jonathan Home, Martin Stadler, Pavel Hrmo, Robin Oswald, Shreyans Jain, Tobias S\\\"agesser","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-08-15T09:40:40Z","title":"Penning micro-trap for quantum computing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.07672","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":"sha256:08ecc3b384cb311ad9a7c7d6a6b57df26679088965c87d05a8cabe7ed190bd88","target":"record","created_at":"2026-07-05T07:55:44Z","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":"3a096543ab7088cefe9c5a2be26a1c402ac769946d088d72d000267c6ffc9a54","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2023-08-15T09:40:40Z","title_canon_sha256":"0cf98003d601a1d5e7e3e54cc2b786b573d9bc292ea2844661f0997db0628540"},"schema_version":"1.0","source":{"id":"2308.07672","kind":"arxiv","version":2}},"canonical_sha256":"daeaaf0e5d04b8599f417f3f503b80d7d6b08336f88db46549e8f2ffc4a4335f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"daeaaf0e5d04b8599f417f3f503b80d7d6b08336f88db46549e8f2ffc4a4335f","first_computed_at":"2026-07-05T07:55:44.831536Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:55:44.831536Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v3VFKOq4pYmO3a+HPxP7x07DUB5/tC3FgJoU7llMAg4UKJA4iYt/DK1VOlB9ukTb0jilrthXrjelGnYsrjWkBw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:55:44.831939Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.07672","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:08ecc3b384cb311ad9a7c7d6a6b57df26679088965c87d05a8cabe7ed190bd88","sha256:559a92f06289b28cb3154faa28e45918c637ab571f82b3c56ed46098bd06a34f"],"state_sha256":"5855491d16c93a5704e34b103159106da73988e2744a29c63c4232b3a67af5f4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6LkayLIpzcsdQBcGc+5Zcvlvtb5ZPIKFLWI0igQNTmIgwXAyLgIXaEwp5kbHJrgGj07G0oi8vHTJzqo83J6nCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T18:18:45.588944Z","bundle_sha256":"16cd086ee5f8c10ae018b51be9e9d9440dbd74329e7c03d7fe7cc0cfac75ef61"}}