{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:SMGW2EIE7NZLAT2FQ4RDO5XXI5","short_pith_number":"pith:SMGW2EIE","canonical_record":{"source":{"id":"1307.7959","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-07-30T13:08:07Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"4d8c27fdc090026fc544da9cf916308d4d446d807fd3c8d0a758cba9042186d2","abstract_canon_sha256":"97701adb42992331de17d3b4ea766c160adb7f92c6159ab93876069ffd0973e5"},"schema_version":"1.0"},"canonical_sha256":"930d6d1104fb72b04f4587223776f74747686edb580ffc9258def104a3865ce7","source":{"kind":"arxiv","id":"1307.7959","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.7959","created_at":"2026-05-18T02:47:16Z"},{"alias_kind":"arxiv_version","alias_value":"1307.7959v1","created_at":"2026-05-18T02:47:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.7959","created_at":"2026-05-18T02:47:16Z"},{"alias_kind":"pith_short_12","alias_value":"SMGW2EIE7NZL","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SMGW2EIE7NZLAT2F","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SMGW2EIE","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:SMGW2EIE7NZLAT2FQ4RDO5XXI5","target":"record","payload":{"canonical_record":{"source":{"id":"1307.7959","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-07-30T13:08:07Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"4d8c27fdc090026fc544da9cf916308d4d446d807fd3c8d0a758cba9042186d2","abstract_canon_sha256":"97701adb42992331de17d3b4ea766c160adb7f92c6159ab93876069ffd0973e5"},"schema_version":"1.0"},"canonical_sha256":"930d6d1104fb72b04f4587223776f74747686edb580ffc9258def104a3865ce7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:16.073293Z","signature_b64":"dA7KG2N8pdQf187tQ3r/VrtlyZNi38NaVCEywkDsFFYbR6XqbVNjtY+LBkSwTh7+Ozo2XdG7ruh4l5cppjfYCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"930d6d1104fb72b04f4587223776f74747686edb580ffc9258def104a3865ce7","last_reissued_at":"2026-05-18T02:47:16.072684Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:16.072684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.7959","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:47:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SJCVG1qUnokamRCtTfKkXp4/9eRxhG9Wh9AZyJ7DiwibYiF8VHsVrjXUWEUB6+2YF3zT0o215Y/Dj+KbxdtMBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:47:06.050894Z"},"content_sha256":"ef968b9d883d9faa84fb82ea738dd505358e21ec4a933b7e71f86f9945ea4a38","schema_version":"1.0","event_id":"sha256:ef968b9d883d9faa84fb82ea738dd505358e21ec4a933b7e71f86f9945ea4a38"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:SMGW2EIE7NZLAT2FQ4RDO5XXI5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electrodynamics of a ring-shaped spiral resonator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"A. Averkin, A. Karpov, A. P. Zhuravel, A. V. Ustinov, M. V. Fistul, N. Maleeva, P. Jung","submitted_at":"2013-07-30T13:08:07Z","abstract_excerpt":"We present analytical, numerical and experimental investigations of electromagnetic resonant modes of a compact monofilar Archimedean spiral resonator shaped in a ring, with no central part. Planar spiral resonators are interesting as components of metamaterials for their compact deep-subwavelength size. Such resonators couple primarily to the magnetic field component of the incident electromagnetic wave, offering properties suitable for magnetic meta-atoms. Surprisingly, the relative frequencies of the resonant modes follow the sequence of the odd numbers, despite the nearly identical boundar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.7959","kind":"arxiv","version":1},"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":"2026-05-18T02:47:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wpxugw/NDrjAl8U43RS8CSEe/sLg/e+I5i1y9M8QIp2Oq9dT0AWZaz7w6xJHhMNOtrx90sI6N2fvLHQNV3m4AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:47:06.051260Z"},"content_sha256":"2fc036639773a2e5d413e8db72c825b75576e1f4811a3aca8d7b5738150f15e3","schema_version":"1.0","event_id":"sha256:2fc036639773a2e5d413e8db72c825b75576e1f4811a3aca8d7b5738150f15e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SMGW2EIE7NZLAT2FQ4RDO5XXI5/bundle.json","state_url":"https://pith.science/pith/SMGW2EIE7NZLAT2FQ4RDO5XXI5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SMGW2EIE7NZLAT2FQ4RDO5XXI5/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":"2026-05-31T18:47:06Z","links":{"resolver":"https://pith.science/pith/SMGW2EIE7NZLAT2FQ4RDO5XXI5","bundle":"https://pith.science/pith/SMGW2EIE7NZLAT2FQ4RDO5XXI5/bundle.json","state":"https://pith.science/pith/SMGW2EIE7NZLAT2FQ4RDO5XXI5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SMGW2EIE7NZLAT2FQ4RDO5XXI5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:SMGW2EIE7NZLAT2FQ4RDO5XXI5","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":"97701adb42992331de17d3b4ea766c160adb7f92c6159ab93876069ffd0973e5","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-07-30T13:08:07Z","title_canon_sha256":"4d8c27fdc090026fc544da9cf916308d4d446d807fd3c8d0a758cba9042186d2"},"schema_version":"1.0","source":{"id":"1307.7959","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.7959","created_at":"2026-05-18T02:47:16Z"},{"alias_kind":"arxiv_version","alias_value":"1307.7959v1","created_at":"2026-05-18T02:47:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.7959","created_at":"2026-05-18T02:47:16Z"},{"alias_kind":"pith_short_12","alias_value":"SMGW2EIE7NZL","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SMGW2EIE7NZLAT2F","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SMGW2EIE","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:2fc036639773a2e5d413e8db72c825b75576e1f4811a3aca8d7b5738150f15e3","target":"graph","created_at":"2026-05-18T02:47:16Z","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 present analytical, numerical and experimental investigations of electromagnetic resonant modes of a compact monofilar Archimedean spiral resonator shaped in a ring, with no central part. Planar spiral resonators are interesting as components of metamaterials for their compact deep-subwavelength size. Such resonators couple primarily to the magnetic field component of the incident electromagnetic wave, offering properties suitable for magnetic meta-atoms. Surprisingly, the relative frequencies of the resonant modes follow the sequence of the odd numbers, despite the nearly identical boundar","authors_text":"A. Averkin, A. Karpov, A. P. Zhuravel, A. V. Ustinov, M. V. Fistul, N. Maleeva, P. Jung","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-07-30T13:08:07Z","title":"Electrodynamics of a ring-shaped spiral resonator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.7959","kind":"arxiv","version":1},"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:ef968b9d883d9faa84fb82ea738dd505358e21ec4a933b7e71f86f9945ea4a38","target":"record","created_at":"2026-05-18T02:47:16Z","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":"97701adb42992331de17d3b4ea766c160adb7f92c6159ab93876069ffd0973e5","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-07-30T13:08:07Z","title_canon_sha256":"4d8c27fdc090026fc544da9cf916308d4d446d807fd3c8d0a758cba9042186d2"},"schema_version":"1.0","source":{"id":"1307.7959","kind":"arxiv","version":1}},"canonical_sha256":"930d6d1104fb72b04f4587223776f74747686edb580ffc9258def104a3865ce7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"930d6d1104fb72b04f4587223776f74747686edb580ffc9258def104a3865ce7","first_computed_at":"2026-05-18T02:47:16.072684Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:16.072684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dA7KG2N8pdQf187tQ3r/VrtlyZNi38NaVCEywkDsFFYbR6XqbVNjtY+LBkSwTh7+Ozo2XdG7ruh4l5cppjfYCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:16.073293Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.7959","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef968b9d883d9faa84fb82ea738dd505358e21ec4a933b7e71f86f9945ea4a38","sha256:2fc036639773a2e5d413e8db72c825b75576e1f4811a3aca8d7b5738150f15e3"],"state_sha256":"4df22e0e3e60e59ef6f40208866c33f91b6569d5e38d80b532c145485184d721"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HdImZGc0u+wiCrmiJsofycC/P2ljimS1OZ4OpJ2Hd50hxdAvDw24qAo2iBJT0Ame3vEtgzM59D3MzCo0NXF2DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T18:47:06.054131Z","bundle_sha256":"46daa193adb480acdc611ee9b82a77b00176203c9e3e8b59c67a75c1febbc3ac"}}