{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:UCWRPRNROYKQMT3VTBKIN6O5YI","short_pith_number":"pith:UCWRPRNR","canonical_record":{"source":{"id":"1201.1679","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-09T02:20:16Z","cross_cats_sorted":[],"title_canon_sha256":"f04f6c19f806cf2f06d781c9ca4022cd6728fdb5473cf9993403c1ce296703c4","abstract_canon_sha256":"f84e5d742f3b1a58b6b19d51d6b0b104a4c30af7974a6828e3287810a1144a0d"},"schema_version":"1.0"},"canonical_sha256":"a0ad17c5b17615064f75985486f9ddc23f357fe9957ea82656cbc31ba12d9273","source":{"kind":"arxiv","id":"1201.1679","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1679","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1679v1","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1679","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"pith_short_12","alias_value":"UCWRPRNROYKQ","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"UCWRPRNROYKQMT3V","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"UCWRPRNR","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:UCWRPRNROYKQMT3VTBKIN6O5YI","target":"record","payload":{"canonical_record":{"source":{"id":"1201.1679","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-09T02:20:16Z","cross_cats_sorted":[],"title_canon_sha256":"f04f6c19f806cf2f06d781c9ca4022cd6728fdb5473cf9993403c1ce296703c4","abstract_canon_sha256":"f84e5d742f3b1a58b6b19d51d6b0b104a4c30af7974a6828e3287810a1144a0d"},"schema_version":"1.0"},"canonical_sha256":"a0ad17c5b17615064f75985486f9ddc23f357fe9957ea82656cbc31ba12d9273","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:54.287328Z","signature_b64":"SbGFQF4AwpWY7q/OahvMSpia6xosNoa7636NI1YupaekgN7q0AGH2/G1nqoSwTZPtkFgZJlYkTZOOoQw/US2AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0ad17c5b17615064f75985486f9ddc23f357fe9957ea82656cbc31ba12d9273","last_reissued_at":"2026-05-18T01:58:54.286487Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:54.286487Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.1679","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":"2026-05-18T01:58:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ablmf1snLusqpGfClxnbOC8u3OpOjhO6SVgmQP3ihm/KrmTVkSik1z+Q+9v/zpt3z6hZ3k+KQAPiAc1W8HW5AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T14:36:28.491690Z"},"content_sha256":"c7a83d5141e7bf6576e6f1f91c1b541c7785e5bd44eb3144bd102ad29995c018","schema_version":"1.0","event_id":"sha256:c7a83d5141e7bf6576e6f1f91c1b541c7785e5bd44eb3144bd102ad29995c018"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:UCWRPRNROYKQMT3VTBKIN6O5YI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"In-plane optical spectra of Y$_{1-x}$Ca$_{x}$Ba$_{2}$Cu$_{3}$O$_{7-{\\delta}}$: Overdoping and disorder effect on residual conductivity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"E. Uykur, K. Tanaka, S. Miyasaka, S. Tajima, T. Masui","submitted_at":"2012-01-09T02:20:16Z","abstract_excerpt":"We measured the temperature dependence of the in-plane polarized reflectivity spectra of twin-free Y$_{1-x}$Ca$_{x}$Ba$_{2}$Cu$_{3}$O$_{7-{\\delta}}$ single crystals with different Ca-concentrations (x=0,0.11 and 0.16) from optimally doped to heavily overdoped region. Low energy optical conductivity spectra showed a Drude-like residual conductivity at temperatures far below the superconducting transition temperature, which indicates the presence of unpaired-normal carriers in the superconducting state. Comparing the spectra at a fixed Ca-content or at a fixed doping level, we have revealed that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1679","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":"2026-05-18T01:58:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DQIaRawrR4r7tWVhQgU4yb1Aekzt+hOLAZxcH6j7UgucNl84VwgHvtAeMmcWqY196Xu9dS9Xgg4zxneefgOWDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T14:36:28.492037Z"},"content_sha256":"521b0562e98825e6789a64199c1cbb36b3e342be988748d34b3e36fbb70998ca","schema_version":"1.0","event_id":"sha256:521b0562e98825e6789a64199c1cbb36b3e342be988748d34b3e36fbb70998ca"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UCWRPRNROYKQMT3VTBKIN6O5YI/bundle.json","state_url":"https://pith.science/pith/UCWRPRNROYKQMT3VTBKIN6O5YI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UCWRPRNROYKQMT3VTBKIN6O5YI/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":"2026-05-28T14:36:28Z","links":{"resolver":"https://pith.science/pith/UCWRPRNROYKQMT3VTBKIN6O5YI","bundle":"https://pith.science/pith/UCWRPRNROYKQMT3VTBKIN6O5YI/bundle.json","state":"https://pith.science/pith/UCWRPRNROYKQMT3VTBKIN6O5YI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UCWRPRNROYKQMT3VTBKIN6O5YI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:UCWRPRNROYKQMT3VTBKIN6O5YI","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":"f84e5d742f3b1a58b6b19d51d6b0b104a4c30af7974a6828e3287810a1144a0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-09T02:20:16Z","title_canon_sha256":"f04f6c19f806cf2f06d781c9ca4022cd6728fdb5473cf9993403c1ce296703c4"},"schema_version":"1.0","source":{"id":"1201.1679","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.1679","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"arxiv_version","alias_value":"1201.1679v1","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1679","created_at":"2026-05-18T01:58:54Z"},{"alias_kind":"pith_short_12","alias_value":"UCWRPRNROYKQ","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"UCWRPRNROYKQMT3V","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"UCWRPRNR","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:521b0562e98825e6789a64199c1cbb36b3e342be988748d34b3e36fbb70998ca","target":"graph","created_at":"2026-05-18T01:58:54Z","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 measured the temperature dependence of the in-plane polarized reflectivity spectra of twin-free Y$_{1-x}$Ca$_{x}$Ba$_{2}$Cu$_{3}$O$_{7-{\\delta}}$ single crystals with different Ca-concentrations (x=0,0.11 and 0.16) from optimally doped to heavily overdoped region. Low energy optical conductivity spectra showed a Drude-like residual conductivity at temperatures far below the superconducting transition temperature, which indicates the presence of unpaired-normal carriers in the superconducting state. Comparing the spectra at a fixed Ca-content or at a fixed doping level, we have revealed that","authors_text":"E. Uykur, K. Tanaka, S. Miyasaka, S. Tajima, T. Masui","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-09T02:20:16Z","title":"In-plane optical spectra of Y$_{1-x}$Ca$_{x}$Ba$_{2}$Cu$_{3}$O$_{7-{\\delta}}$: Overdoping and disorder effect on residual conductivity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1679","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:c7a83d5141e7bf6576e6f1f91c1b541c7785e5bd44eb3144bd102ad29995c018","target":"record","created_at":"2026-05-18T01:58:54Z","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":"f84e5d742f3b1a58b6b19d51d6b0b104a4c30af7974a6828e3287810a1144a0d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-01-09T02:20:16Z","title_canon_sha256":"f04f6c19f806cf2f06d781c9ca4022cd6728fdb5473cf9993403c1ce296703c4"},"schema_version":"1.0","source":{"id":"1201.1679","kind":"arxiv","version":1}},"canonical_sha256":"a0ad17c5b17615064f75985486f9ddc23f357fe9957ea82656cbc31ba12d9273","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0ad17c5b17615064f75985486f9ddc23f357fe9957ea82656cbc31ba12d9273","first_computed_at":"2026-05-18T01:58:54.286487Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:54.286487Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SbGFQF4AwpWY7q/OahvMSpia6xosNoa7636NI1YupaekgN7q0AGH2/G1nqoSwTZPtkFgZJlYkTZOOoQw/US2AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:54.287328Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.1679","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c7a83d5141e7bf6576e6f1f91c1b541c7785e5bd44eb3144bd102ad29995c018","sha256:521b0562e98825e6789a64199c1cbb36b3e342be988748d34b3e36fbb70998ca"],"state_sha256":"eb248e1313c4ffc2e84997a04641dca86e0d062096126b0b63c8e421c0d65767"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YU50Z3+LvJNVqsbu1agkKRzmMpx1uBP4/IANPNhoiHTUD3civOl5g9030qJhVhZX2pNFKN9rxc9YQed16/pJAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T14:36:28.493935Z","bundle_sha256":"fa0a8eb9b6c899130407853be22eb996c9f2648430c5ac5a4a36ea6dc38cde07"}}