{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:RDV3VK44X4YNQMFJOOFNDTRFYE","short_pith_number":"pith:RDV3VK44","canonical_record":{"source":{"id":"1010.6108","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-28T23:29:50Z","cross_cats_sorted":[],"title_canon_sha256":"cc46025e2a846b0c1f24bb24d7469889eb1f655fcbc09fd92707b5449f2ae76d","abstract_canon_sha256":"4bdf1a73a6956b8b122347f3192477328dc8871609a43db22a2a8740ad42d970"},"schema_version":"1.0"},"canonical_sha256":"88ebbaab9cbf30d830a9738ad1ce25c125e66bc5fba08b4994bcc7dde5e4576f","source":{"kind":"arxiv","id":"1010.6108","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.6108","created_at":"2026-05-18T04:33:26Z"},{"alias_kind":"arxiv_version","alias_value":"1010.6108v2","created_at":"2026-05-18T04:33:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.6108","created_at":"2026-05-18T04:33:26Z"},{"alias_kind":"pith_short_12","alias_value":"RDV3VK44X4YN","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"RDV3VK44X4YNQMFJ","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"RDV3VK44","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:RDV3VK44X4YNQMFJOOFNDTRFYE","target":"record","payload":{"canonical_record":{"source":{"id":"1010.6108","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-28T23:29:50Z","cross_cats_sorted":[],"title_canon_sha256":"cc46025e2a846b0c1f24bb24d7469889eb1f655fcbc09fd92707b5449f2ae76d","abstract_canon_sha256":"4bdf1a73a6956b8b122347f3192477328dc8871609a43db22a2a8740ad42d970"},"schema_version":"1.0"},"canonical_sha256":"88ebbaab9cbf30d830a9738ad1ce25c125e66bc5fba08b4994bcc7dde5e4576f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:33:26.707496Z","signature_b64":"7QWFat8MDiaiR2QLdoZntlTwuGGYyeTSJ8+qAajvZItpt4dDM5HPUAd6LBm95zpPpsgr1w3ptmy4e4xnr+VSDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"88ebbaab9cbf30d830a9738ad1ce25c125e66bc5fba08b4994bcc7dde5e4576f","last_reissued_at":"2026-05-18T04:33:26.706988Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:33:26.706988Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.6108","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":"2026-05-18T04:33:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QmSBquqllZR1CbN+cXCSf2XWaK5Prf2WYvWrUmWNJlS1yqOuM8pwpjnDTJiAXIvcj/7KqUP00bf9jcmnvbTPBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:00:10.696486Z"},"content_sha256":"1dd1ba9fcf6752c9ab3936bedb898dd948ca4042000c707b27f3b7f7e99d8e58","schema_version":"1.0","event_id":"sha256:1dd1ba9fcf6752c9ab3936bedb898dd948ca4042000c707b27f3b7f7e99d8e58"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:RDV3VK44X4YNQMFJOOFNDTRFYE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconducting microfabricated ion traps","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Eric Dauler, Isaac L. Chuang, Jaroslaw Labaziewicz, Karl Berggren, Shannon X. Wang, Yufei Ge","submitted_at":"2010-10-28T23:29:50Z","abstract_excerpt":"We fabricate superconducting ion traps with niobium and niobium nitride and trap single 88Sr ions at cryogenic temperatures. The superconducting transition is verified and characterized by measuring the resistance and critical current using a 4-wire measurement on the trap structure, and observing change in the rf reflection. The lowest observed heating rate is 2.1(3) quanta/sec at 800 kHz at 6 K and shows no significant change across the superconducting transition, suggesting that anomalous heating is primarily caused by noise sources on the surface. This demonstration of superconducting ion "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.6108","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":"2026-05-18T04:33:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VG127HKqRSgUeOvWgQXStrYLj/oMSEMun9ki3vZ2s3B9WiXOZvBvPTSev+ER418q6uaZLQdidHAkvq8hwVHZDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:00:10.697161Z"},"content_sha256":"06508c626647677366afe31c1c454ed14792975f1efccab9f9d00b8cdbfab54b","schema_version":"1.0","event_id":"sha256:06508c626647677366afe31c1c454ed14792975f1efccab9f9d00b8cdbfab54b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RDV3VK44X4YNQMFJOOFNDTRFYE/bundle.json","state_url":"https://pith.science/pith/RDV3VK44X4YNQMFJOOFNDTRFYE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RDV3VK44X4YNQMFJOOFNDTRFYE/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":"2026-05-27T01:00:10Z","links":{"resolver":"https://pith.science/pith/RDV3VK44X4YNQMFJOOFNDTRFYE","bundle":"https://pith.science/pith/RDV3VK44X4YNQMFJOOFNDTRFYE/bundle.json","state":"https://pith.science/pith/RDV3VK44X4YNQMFJOOFNDTRFYE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RDV3VK44X4YNQMFJOOFNDTRFYE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:RDV3VK44X4YNQMFJOOFNDTRFYE","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":"4bdf1a73a6956b8b122347f3192477328dc8871609a43db22a2a8740ad42d970","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-28T23:29:50Z","title_canon_sha256":"cc46025e2a846b0c1f24bb24d7469889eb1f655fcbc09fd92707b5449f2ae76d"},"schema_version":"1.0","source":{"id":"1010.6108","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.6108","created_at":"2026-05-18T04:33:26Z"},{"alias_kind":"arxiv_version","alias_value":"1010.6108v2","created_at":"2026-05-18T04:33:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.6108","created_at":"2026-05-18T04:33:26Z"},{"alias_kind":"pith_short_12","alias_value":"RDV3VK44X4YN","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"RDV3VK44X4YNQMFJ","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"RDV3VK44","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:06508c626647677366afe31c1c454ed14792975f1efccab9f9d00b8cdbfab54b","target":"graph","created_at":"2026-05-18T04:33:26Z","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":"We fabricate superconducting ion traps with niobium and niobium nitride and trap single 88Sr ions at cryogenic temperatures. The superconducting transition is verified and characterized by measuring the resistance and critical current using a 4-wire measurement on the trap structure, and observing change in the rf reflection. The lowest observed heating rate is 2.1(3) quanta/sec at 800 kHz at 6 K and shows no significant change across the superconducting transition, suggesting that anomalous heating is primarily caused by noise sources on the surface. This demonstration of superconducting ion ","authors_text":"Eric Dauler, Isaac L. Chuang, Jaroslaw Labaziewicz, Karl Berggren, Shannon X. Wang, Yufei Ge","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-28T23:29:50Z","title":"Superconducting microfabricated ion traps"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.6108","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":"sha256:1dd1ba9fcf6752c9ab3936bedb898dd948ca4042000c707b27f3b7f7e99d8e58","target":"record","created_at":"2026-05-18T04:33:26Z","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":"4bdf1a73a6956b8b122347f3192477328dc8871609a43db22a2a8740ad42d970","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-10-28T23:29:50Z","title_canon_sha256":"cc46025e2a846b0c1f24bb24d7469889eb1f655fcbc09fd92707b5449f2ae76d"},"schema_version":"1.0","source":{"id":"1010.6108","kind":"arxiv","version":2}},"canonical_sha256":"88ebbaab9cbf30d830a9738ad1ce25c125e66bc5fba08b4994bcc7dde5e4576f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"88ebbaab9cbf30d830a9738ad1ce25c125e66bc5fba08b4994bcc7dde5e4576f","first_computed_at":"2026-05-18T04:33:26.706988Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:33:26.706988Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7QWFat8MDiaiR2QLdoZntlTwuGGYyeTSJ8+qAajvZItpt4dDM5HPUAd6LBm95zpPpsgr1w3ptmy4e4xnr+VSDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:33:26.707496Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.6108","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1dd1ba9fcf6752c9ab3936bedb898dd948ca4042000c707b27f3b7f7e99d8e58","sha256:06508c626647677366afe31c1c454ed14792975f1efccab9f9d00b8cdbfab54b"],"state_sha256":"809a2b709fdf85fafc9b8952226d680d01f6fa7add05f79b94d9526b68767be0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"248g1p+vXDYSzb6AL/+umdWOPoSSw1amEEHuk9LMg9z7OwAnIcOGQM7qdGwc6uyCYJ9K7NYo+Ovgo56+nKjBBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T01:00:10.700911Z","bundle_sha256":"f4208108915d1eee314b0f949de6f9702a0e721f6418f64658b22279ab8ea43c"}}