{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JSXRZ357HHKHH7JZX6I4O5X2TI","short_pith_number":"pith:JSXRZ357","canonical_record":{"source":{"id":"1304.0639","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-02T14:15:54Z","cross_cats_sorted":[],"title_canon_sha256":"2fc7a187ffed38b87ea421fc35360308d21b1a8f989b6b1124755a9d9c28c886","abstract_canon_sha256":"380eb71fbf0a74096b0644de2e90bdc5f9e82927d0fc4b58f557c684ba9dd2ac"},"schema_version":"1.0"},"canonical_sha256":"4caf1cefbf39d473fd39bf91c776fa9a39bb9d0fc3bf1370090c8ee980459887","source":{"kind":"arxiv","id":"1304.0639","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.0639","created_at":"2026-05-18T03:29:14Z"},{"alias_kind":"arxiv_version","alias_value":"1304.0639v1","created_at":"2026-05-18T03:29:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.0639","created_at":"2026-05-18T03:29:14Z"},{"alias_kind":"pith_short_12","alias_value":"JSXRZ357HHKH","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JSXRZ357HHKHH7JZ","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JSXRZ357","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JSXRZ357HHKHH7JZX6I4O5X2TI","target":"record","payload":{"canonical_record":{"source":{"id":"1304.0639","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-02T14:15:54Z","cross_cats_sorted":[],"title_canon_sha256":"2fc7a187ffed38b87ea421fc35360308d21b1a8f989b6b1124755a9d9c28c886","abstract_canon_sha256":"380eb71fbf0a74096b0644de2e90bdc5f9e82927d0fc4b58f557c684ba9dd2ac"},"schema_version":"1.0"},"canonical_sha256":"4caf1cefbf39d473fd39bf91c776fa9a39bb9d0fc3bf1370090c8ee980459887","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:29:14.825560Z","signature_b64":"5KZKdDQJO+CGfW0bxd1TgcH7KiIkLWsK29nLRVeZWHTJGQ+xIpECE9XjUyxazgPhpv3Nraj7YMmu10fMVD7+CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4caf1cefbf39d473fd39bf91c776fa9a39bb9d0fc3bf1370090c8ee980459887","last_reissued_at":"2026-05-18T03:29:14.824943Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:29:14.824943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.0639","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":"2026-05-18T03:29:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qGMF7bt78yZrh6pupciNBH7mQucaRWGFsRP3idRd2sjLbH8lHhop15jmBr2v/dM6vV/v3SXVHyZLQ0gOzBGNBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T00:10:41.678742Z"},"content_sha256":"267c71b5776b4f5ae43bffc33339e6a8838199e0579e43ed7e95a766cb0cf63c","schema_version":"1.0","event_id":"sha256:267c71b5776b4f5ae43bffc33339e6a8838199e0579e43ed7e95a766cb0cf63c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JSXRZ357HHKHH7JZX6I4O5X2TI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Millimeter-wave surface impedance of optimally-doped Ba(Fe1-xCox)2As2 single crystals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. Barannik, M. A. Tanatar, N. T. Cherpak, P. C. Canfield, R. Prozorov, S. Vitusevich, V. Skresanov","submitted_at":"2013-04-02T14:15:54Z","abstract_excerpt":"Precision measurements of active and reactive components of in-plane microwave surface impedance were performed in single crystals of optimally-doped Fe-based superconductor Ba(Fe1-xCox)2As2 (x = 0.074, Tc = 22.8 K). Measurements in a millimeter wavelength range (Ka band, 35-40 GHz) were performed using whispering gallery mode excitations in the ultrahigh quality factor quasioptical sapphire disk resonator with YBa2Cu2O7 superconducting (Tc = 90 K) end plates. The temperature variation of the London penetration depth is best described by a power-law function, delta {\\lambda}(T) is proportional"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.0639","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":"2026-05-18T03:29:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bcUU1WvDrY2psJZ4nmQ++S1Li66YlHfAvXVU9uAA7y1pwjWgJHgV3QIXFjiMxjWU1kJeVXPh6l25TbtNz7/pBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T00:10:41.679496Z"},"content_sha256":"4372d3ea34023e30c3b5b55522c182c84f16ca6a861f1166e6e3f0d30b69bd53","schema_version":"1.0","event_id":"sha256:4372d3ea34023e30c3b5b55522c182c84f16ca6a861f1166e6e3f0d30b69bd53"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JSXRZ357HHKHH7JZX6I4O5X2TI/bundle.json","state_url":"https://pith.science/pith/JSXRZ357HHKHH7JZX6I4O5X2TI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JSXRZ357HHKHH7JZX6I4O5X2TI/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":"2026-06-12T00:10:41Z","links":{"resolver":"https://pith.science/pith/JSXRZ357HHKHH7JZX6I4O5X2TI","bundle":"https://pith.science/pith/JSXRZ357HHKHH7JZX6I4O5X2TI/bundle.json","state":"https://pith.science/pith/JSXRZ357HHKHH7JZX6I4O5X2TI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JSXRZ357HHKHH7JZX6I4O5X2TI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JSXRZ357HHKHH7JZX6I4O5X2TI","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":"380eb71fbf0a74096b0644de2e90bdc5f9e82927d0fc4b58f557c684ba9dd2ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-02T14:15:54Z","title_canon_sha256":"2fc7a187ffed38b87ea421fc35360308d21b1a8f989b6b1124755a9d9c28c886"},"schema_version":"1.0","source":{"id":"1304.0639","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.0639","created_at":"2026-05-18T03:29:14Z"},{"alias_kind":"arxiv_version","alias_value":"1304.0639v1","created_at":"2026-05-18T03:29:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.0639","created_at":"2026-05-18T03:29:14Z"},{"alias_kind":"pith_short_12","alias_value":"JSXRZ357HHKH","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JSXRZ357HHKHH7JZ","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JSXRZ357","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:4372d3ea34023e30c3b5b55522c182c84f16ca6a861f1166e6e3f0d30b69bd53","target":"graph","created_at":"2026-05-18T03:29:14Z","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":"Precision measurements of active and reactive components of in-plane microwave surface impedance were performed in single crystals of optimally-doped Fe-based superconductor Ba(Fe1-xCox)2As2 (x = 0.074, Tc = 22.8 K). Measurements in a millimeter wavelength range (Ka band, 35-40 GHz) were performed using whispering gallery mode excitations in the ultrahigh quality factor quasioptical sapphire disk resonator with YBa2Cu2O7 superconducting (Tc = 90 K) end plates. The temperature variation of the London penetration depth is best described by a power-law function, delta {\\lambda}(T) is proportional","authors_text":"A. Barannik, M. A. Tanatar, N. T. Cherpak, P. C. Canfield, R. Prozorov, S. Vitusevich, V. Skresanov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-02T14:15:54Z","title":"Millimeter-wave surface impedance of optimally-doped Ba(Fe1-xCox)2As2 single crystals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.0639","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":"sha256:267c71b5776b4f5ae43bffc33339e6a8838199e0579e43ed7e95a766cb0cf63c","target":"record","created_at":"2026-05-18T03:29:14Z","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":"380eb71fbf0a74096b0644de2e90bdc5f9e82927d0fc4b58f557c684ba9dd2ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-04-02T14:15:54Z","title_canon_sha256":"2fc7a187ffed38b87ea421fc35360308d21b1a8f989b6b1124755a9d9c28c886"},"schema_version":"1.0","source":{"id":"1304.0639","kind":"arxiv","version":1}},"canonical_sha256":"4caf1cefbf39d473fd39bf91c776fa9a39bb9d0fc3bf1370090c8ee980459887","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4caf1cefbf39d473fd39bf91c776fa9a39bb9d0fc3bf1370090c8ee980459887","first_computed_at":"2026-05-18T03:29:14.824943Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:29:14.824943Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5KZKdDQJO+CGfW0bxd1TgcH7KiIkLWsK29nLRVeZWHTJGQ+xIpECE9XjUyxazgPhpv3Nraj7YMmu10fMVD7+CA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:29:14.825560Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.0639","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:267c71b5776b4f5ae43bffc33339e6a8838199e0579e43ed7e95a766cb0cf63c","sha256:4372d3ea34023e30c3b5b55522c182c84f16ca6a861f1166e6e3f0d30b69bd53"],"state_sha256":"f9b240454d840014918d631ddf36b6d13bbc3e46286e1e1efeea87b508a88398"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qrfujOvrGpI2+is93RDulRIdWgCkhf76CMedXTwbjFg/XaxYXtAO2OYYBwQl6bDxy3v8RGLFwX/YD+UNTPOhBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T00:10:41.683094Z","bundle_sha256":"38bd569a8e3f69ff2623562f06a8988691061d4c607c64935677793f535ca2ad"}}