{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:SKRF6HDX6BFM3C7CI2V275XZXQ","short_pith_number":"pith:SKRF6HDX","canonical_record":{"source":{"id":"2412.16045","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-20T16:48:47Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"0b94072b2f3659f739bf9fcb29a294eb44f1f8f11dc8e01c48e93c1de556f3b8","abstract_canon_sha256":"075f5aebcd18fafb3eb9e3a737da03e4074dc1bf611f860806d28787c34b0281"},"schema_version":"1.0"},"canonical_sha256":"92a25f1c77f04acd8be246abaff6f9bc07f1c02fcfd4ec42476cf3e82cb57c4e","source":{"kind":"arxiv","id":"2412.16045","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.16045","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"arxiv_version","alias_value":"2412.16045v2","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.16045","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"pith_short_12","alias_value":"SKRF6HDX6BFM","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"pith_short_16","alias_value":"SKRF6HDX6BFM3C7C","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"pith_short_8","alias_value":"SKRF6HDX","created_at":"2026-07-05T09:56:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:SKRF6HDX6BFM3C7CI2V275XZXQ","target":"record","payload":{"canonical_record":{"source":{"id":"2412.16045","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-20T16:48:47Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"0b94072b2f3659f739bf9fcb29a294eb44f1f8f11dc8e01c48e93c1de556f3b8","abstract_canon_sha256":"075f5aebcd18fafb3eb9e3a737da03e4074dc1bf611f860806d28787c34b0281"},"schema_version":"1.0"},"canonical_sha256":"92a25f1c77f04acd8be246abaff6f9bc07f1c02fcfd4ec42476cf3e82cb57c4e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:56:38.423894Z","signature_b64":"vDiVZLs8uaadD72qa27S5tbfEPcFH8S2WJZyG3wCG9xiGZVju35jWE/N/eol45aM6ef+/pYpomTZNXJIRaFFBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92a25f1c77f04acd8be246abaff6f9bc07f1c02fcfd4ec42476cf3e82cb57c4e","last_reissued_at":"2026-07-05T09:56:38.423377Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:56:38.423377Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.16045","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":"2026-07-05T09:56:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XwJoIEk/Zbe+AGAgn4B5bFPwoY2EArholglToqBVMUHIVh0LxLYiC4gFs/fBgHx4uAD8y/Av1fOEM+lOP+DaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T03:31:00.847491Z"},"content_sha256":"25e567701e9687f4e52f21aaca209e37051198559469a75725a23c5a40757330","schema_version":"1.0","event_id":"sha256:25e567701e9687f4e52f21aaca209e37051198559469a75725a23c5a40757330"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:SKRF6HDX6BFM3C7CI2V275XZXQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Millikelvin Nb nanoSQUID-embedded tuneable resonator fabricated with a neon focused-ion-beam","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"quant-ph","authors_text":"Ed Romans, Gemma Chapman, Jamie A. Potter, John Gallop, Laith Meti, Ling Hao","submitted_at":"2024-12-20T16:48:47Z","abstract_excerpt":"SQUID-embedded superconducting resonators are of great interest due to their potential for coupling highly scalable superconducting circuits with quantum memories based on solid-state spin ensembles. Such an application requires a high-$Q$, frequency-tuneable resonator which is both resilient to magnetic field, and able to operate at millikelvin temperatures. These requirements motivate the use of a higher $H_{c}$ metal such as niobium, however the challenge then becomes to sufficiently reduce the operating temperature. We address this by presenting a monolithic Nb nanoSQUID-embedded resonator"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.16045","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/2412.16045/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":"2026-07-05T09:56:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eSSPC3qKEh9sBsGutehOHcEL35+zeodzU0Uq/6aXXUW3j1P/yErEt/I1lWeeIeLdHKzknUnrhrRM8BCBVN5BAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T03:31:00.848084Z"},"content_sha256":"2ce53ad73d6d36039276f11c2f8cfa7c1b70c5a9f0100c8b6d51acd1a96c4d45","schema_version":"1.0","event_id":"sha256:2ce53ad73d6d36039276f11c2f8cfa7c1b70c5a9f0100c8b6d51acd1a96c4d45"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SKRF6HDX6BFM3C7CI2V275XZXQ/bundle.json","state_url":"https://pith.science/pith/SKRF6HDX6BFM3C7CI2V275XZXQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SKRF6HDX6BFM3C7CI2V275XZXQ/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":"2026-08-12T03:31:00Z","links":{"resolver":"https://pith.science/pith/SKRF6HDX6BFM3C7CI2V275XZXQ","bundle":"https://pith.science/pith/SKRF6HDX6BFM3C7CI2V275XZXQ/bundle.json","state":"https://pith.science/pith/SKRF6HDX6BFM3C7CI2V275XZXQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SKRF6HDX6BFM3C7CI2V275XZXQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:SKRF6HDX6BFM3C7CI2V275XZXQ","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":"075f5aebcd18fafb3eb9e3a737da03e4074dc1bf611f860806d28787c34b0281","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-20T16:48:47Z","title_canon_sha256":"0b94072b2f3659f739bf9fcb29a294eb44f1f8f11dc8e01c48e93c1de556f3b8"},"schema_version":"1.0","source":{"id":"2412.16045","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.16045","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"arxiv_version","alias_value":"2412.16045v2","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.16045","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"pith_short_12","alias_value":"SKRF6HDX6BFM","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"pith_short_16","alias_value":"SKRF6HDX6BFM3C7C","created_at":"2026-07-05T09:56:38Z"},{"alias_kind":"pith_short_8","alias_value":"SKRF6HDX","created_at":"2026-07-05T09:56:38Z"}],"graph_snapshots":[{"event_id":"sha256:2ce53ad73d6d36039276f11c2f8cfa7c1b70c5a9f0100c8b6d51acd1a96c4d45","target":"graph","created_at":"2026-07-05T09:56:38Z","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/2412.16045/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"SQUID-embedded superconducting resonators are of great interest due to their potential for coupling highly scalable superconducting circuits with quantum memories based on solid-state spin ensembles. Such an application requires a high-$Q$, frequency-tuneable resonator which is both resilient to magnetic field, and able to operate at millikelvin temperatures. These requirements motivate the use of a higher $H_{c}$ metal such as niobium, however the challenge then becomes to sufficiently reduce the operating temperature. We address this by presenting a monolithic Nb nanoSQUID-embedded resonator","authors_text":"Ed Romans, Gemma Chapman, Jamie A. Potter, John Gallop, Laith Meti, Ling Hao","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-20T16:48:47Z","title":"Millikelvin Nb nanoSQUID-embedded tuneable resonator fabricated with a neon focused-ion-beam"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.16045","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":"sha256:25e567701e9687f4e52f21aaca209e37051198559469a75725a23c5a40757330","target":"record","created_at":"2026-07-05T09:56:38Z","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":"075f5aebcd18fafb3eb9e3a737da03e4074dc1bf611f860806d28787c34b0281","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2024-12-20T16:48:47Z","title_canon_sha256":"0b94072b2f3659f739bf9fcb29a294eb44f1f8f11dc8e01c48e93c1de556f3b8"},"schema_version":"1.0","source":{"id":"2412.16045","kind":"arxiv","version":2}},"canonical_sha256":"92a25f1c77f04acd8be246abaff6f9bc07f1c02fcfd4ec42476cf3e82cb57c4e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"92a25f1c77f04acd8be246abaff6f9bc07f1c02fcfd4ec42476cf3e82cb57c4e","first_computed_at":"2026-07-05T09:56:38.423377Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:56:38.423377Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vDiVZLs8uaadD72qa27S5tbfEPcFH8S2WJZyG3wCG9xiGZVju35jWE/N/eol45aM6ef+/pYpomTZNXJIRaFFBw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:56:38.423894Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.16045","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25e567701e9687f4e52f21aaca209e37051198559469a75725a23c5a40757330","sha256:2ce53ad73d6d36039276f11c2f8cfa7c1b70c5a9f0100c8b6d51acd1a96c4d45"],"state_sha256":"79784d81ad1bc7968c440b32f607e8cf61372889e849c276519a0b5a7532eaf3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5tWbZAxLHM1+xW89DqQM6+8+3qweYrUC/1tLP0Eqz5a714VOwhnFaUhGH41zmy6VragyGb3NVa/597aY9G4BAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T03:31:00.857650Z","bundle_sha256":"f56fd0147192328f06a25d94b7a444f42d050e429de3926e3b5b34a06b5315d4"}}