{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:CZEKQM2FUY6UIBVCEV7MHUUIDL","short_pith_number":"pith:CZEKQM2F","canonical_record":{"source":{"id":"1203.3998","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-03-18T21:23:08Z","cross_cats_sorted":[],"title_canon_sha256":"6f82e09f660d9e31959f35ca7509abc6a2478bcaccf21f8c154c8fd543960eae","abstract_canon_sha256":"c15be8a40a389d4af5a2cb36593c3b0b32625a23b28c011a1d334baa379f8492"},"schema_version":"1.0"},"canonical_sha256":"1648a83345a63d4406a2257ec3d2881aef4d732fa1ff8c1c73910054279747bc","source":{"kind":"arxiv","id":"1203.3998","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3998","created_at":"2026-05-18T03:56:23Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3998v2","created_at":"2026-05-18T03:56:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3998","created_at":"2026-05-18T03:56:23Z"},{"alias_kind":"pith_short_12","alias_value":"CZEKQM2FUY6U","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CZEKQM2FUY6UIBVC","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CZEKQM2F","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:CZEKQM2FUY6UIBVCEV7MHUUIDL","target":"record","payload":{"canonical_record":{"source":{"id":"1203.3998","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-03-18T21:23:08Z","cross_cats_sorted":[],"title_canon_sha256":"6f82e09f660d9e31959f35ca7509abc6a2478bcaccf21f8c154c8fd543960eae","abstract_canon_sha256":"c15be8a40a389d4af5a2cb36593c3b0b32625a23b28c011a1d334baa379f8492"},"schema_version":"1.0"},"canonical_sha256":"1648a83345a63d4406a2257ec3d2881aef4d732fa1ff8c1c73910054279747bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:56:23.958169Z","signature_b64":"+MsXq1iY9bL2AtFgLsNwZxYJuijBlYccdcxezg4ir15yEtyZbNDi0da/FTlRTPp9anTmVcLOj5uZUdyLOXP4Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1648a83345a63d4406a2257ec3d2881aef4d732fa1ff8c1c73910054279747bc","last_reissued_at":"2026-05-18T03:56:23.957478Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:56:23.957478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1203.3998","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":"2026-05-18T03:56:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C0+0mh07HzMg0jgVzl6kJLnLrwT5t+JVg+dRCr4HsEErf4k2SLV8WefH4nA2X/7OpBmI/sen7izhl5mdQ1dvCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:20:14.749951Z"},"content_sha256":"9ac0216c8090634e4269c2840404c54fe656154d5ba460cfc382bfdcb61d77b5","schema_version":"1.0","event_id":"sha256:9ac0216c8090634e4269c2840404c54fe656154d5ba460cfc382bfdcb61d77b5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:CZEKQM2FUY6UIBVCEV7MHUUIDL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unconventional rf photoresponse from a superconducting spiral resonator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Alexander P. Zhuravel, Alexey V. Ustinov, Cihan Kurter, Steven M. Anlage","submitted_at":"2012-03-18T21:23:08Z","abstract_excerpt":"Superconducting thin film resonators employing strip geometries show great promise in rf/microwave applications due to their low loss and compact nature. However, their functionality is limited by nonlinear effects at elevated rf/microwave powers. Here, we show that by using a planar spiral geometry carrying parallel currents in adjacent turns, this limitation can be minimized. We investigate the rf current distributions in spiral resonators implemented with Nb thin films via laser scanning microscopy. The rf current density profile along the width of the individual turns of the resonators rev"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3998","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":"2026-05-18T03:56:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qL1mufx4Fnnl0oY+q7NDZpqo+jx1tE0dahzwJ0IyVj5bXRtBXr5oKnrJeBsq2WDphPPXe0Vixcl7M8SGkRQXDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:20:14.750741Z"},"content_sha256":"0228c5e067baf8afdf3198482733ab26f3e0300134c08bdf56ad64a54210e1a0","schema_version":"1.0","event_id":"sha256:0228c5e067baf8afdf3198482733ab26f3e0300134c08bdf56ad64a54210e1a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CZEKQM2FUY6UIBVCEV7MHUUIDL/bundle.json","state_url":"https://pith.science/pith/CZEKQM2FUY6UIBVCEV7MHUUIDL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CZEKQM2FUY6UIBVCEV7MHUUIDL/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":"2026-05-30T09:20:14Z","links":{"resolver":"https://pith.science/pith/CZEKQM2FUY6UIBVCEV7MHUUIDL","bundle":"https://pith.science/pith/CZEKQM2FUY6UIBVCEV7MHUUIDL/bundle.json","state":"https://pith.science/pith/CZEKQM2FUY6UIBVCEV7MHUUIDL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CZEKQM2FUY6UIBVCEV7MHUUIDL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:CZEKQM2FUY6UIBVCEV7MHUUIDL","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":"c15be8a40a389d4af5a2cb36593c3b0b32625a23b28c011a1d334baa379f8492","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-03-18T21:23:08Z","title_canon_sha256":"6f82e09f660d9e31959f35ca7509abc6a2478bcaccf21f8c154c8fd543960eae"},"schema_version":"1.0","source":{"id":"1203.3998","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3998","created_at":"2026-05-18T03:56:23Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3998v2","created_at":"2026-05-18T03:56:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3998","created_at":"2026-05-18T03:56:23Z"},{"alias_kind":"pith_short_12","alias_value":"CZEKQM2FUY6U","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CZEKQM2FUY6UIBVC","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CZEKQM2F","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:0228c5e067baf8afdf3198482733ab26f3e0300134c08bdf56ad64a54210e1a0","target":"graph","created_at":"2026-05-18T03:56:23Z","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":"Superconducting thin film resonators employing strip geometries show great promise in rf/microwave applications due to their low loss and compact nature. However, their functionality is limited by nonlinear effects at elevated rf/microwave powers. Here, we show that by using a planar spiral geometry carrying parallel currents in adjacent turns, this limitation can be minimized. We investigate the rf current distributions in spiral resonators implemented with Nb thin films via laser scanning microscopy. The rf current density profile along the width of the individual turns of the resonators rev","authors_text":"Alexander P. Zhuravel, Alexey V. Ustinov, Cihan Kurter, Steven M. Anlage","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-03-18T21:23:08Z","title":"Unconventional rf photoresponse from a superconducting spiral resonator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3998","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":"sha256:9ac0216c8090634e4269c2840404c54fe656154d5ba460cfc382bfdcb61d77b5","target":"record","created_at":"2026-05-18T03:56:23Z","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":"c15be8a40a389d4af5a2cb36593c3b0b32625a23b28c011a1d334baa379f8492","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-03-18T21:23:08Z","title_canon_sha256":"6f82e09f660d9e31959f35ca7509abc6a2478bcaccf21f8c154c8fd543960eae"},"schema_version":"1.0","source":{"id":"1203.3998","kind":"arxiv","version":2}},"canonical_sha256":"1648a83345a63d4406a2257ec3d2881aef4d732fa1ff8c1c73910054279747bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1648a83345a63d4406a2257ec3d2881aef4d732fa1ff8c1c73910054279747bc","first_computed_at":"2026-05-18T03:56:23.957478Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:56:23.957478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+MsXq1iY9bL2AtFgLsNwZxYJuijBlYccdcxezg4ir15yEtyZbNDi0da/FTlRTPp9anTmVcLOj5uZUdyLOXP4Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:56:23.958169Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.3998","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ac0216c8090634e4269c2840404c54fe656154d5ba460cfc382bfdcb61d77b5","sha256:0228c5e067baf8afdf3198482733ab26f3e0300134c08bdf56ad64a54210e1a0"],"state_sha256":"c6990eb8ab3d7815ae1c694b0c1d2174e7506753f71a54ef0868bb69c0d2a08b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NnMpGvmDvSes5IhA1tymkx7fjZjnH1THbnwDIeybjh/4bE3HhxeIKcdw4Rm3oJj0P44/j3eha/IlyQGnN4z4BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:20:14.754712Z","bundle_sha256":"7154da71a24cf579a2ba6d176783227e5c8d53f9d3a969a35177da13bf4bd724"}}