{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:BKJKL44WTAZQSNQKDBYT2MWD73","short_pith_number":"pith:BKJKL44W","canonical_record":{"source":{"id":"0706.1463","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2007-06-11T13:15:15Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"d5a57ec25a451a73f48dad482ee15cd1c8edd484ef8d24527f6996cfe13017ae","abstract_canon_sha256":"48dc946e3bf83e88f14e450de3d880e57137ba225def93b324dc692a7cba8b2d"},"schema_version":"1.0"},"canonical_sha256":"0a92a5f396983309360a18713d32c3fedc537e50e61905eca197cd77803bef7a","source":{"kind":"arxiv","id":"0706.1463","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.1463","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"arxiv_version","alias_value":"0706.1463v1","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.1463","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"pith_short_12","alias_value":"BKJKL44WTAZQ","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"pith_short_16","alias_value":"BKJKL44WTAZQSNQK","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"pith_short_8","alias_value":"BKJKL44W","created_at":"2026-07-04T15:04:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:BKJKL44WTAZQSNQKDBYT2MWD73","target":"record","payload":{"canonical_record":{"source":{"id":"0706.1463","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2007-06-11T13:15:15Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"d5a57ec25a451a73f48dad482ee15cd1c8edd484ef8d24527f6996cfe13017ae","abstract_canon_sha256":"48dc946e3bf83e88f14e450de3d880e57137ba225def93b324dc692a7cba8b2d"},"schema_version":"1.0"},"canonical_sha256":"0a92a5f396983309360a18713d32c3fedc537e50e61905eca197cd77803bef7a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:04:04.638350Z","signature_b64":"DBr5gviKUEskW/uwuEw3WelieQHx24Ladg0ACRXWRu1zQMwkcJlaU1+Y73WGSRjDdk8D2sjeFPKwBG9/aF5XAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a92a5f396983309360a18713d32c3fedc537e50e61905eca197cd77803bef7a","last_reissued_at":"2026-07-04T15:04:04.637960Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:04:04.637960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0706.1463","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":"2026-07-04T15:04:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gwh3TBtdPw2fS6Zn2/pLWfutWmW52+YNNTWdamDpnA4wwjByV4aLFXhALM33HBkK/TMzoW1vzjxr+alx58pEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:15:55.000889Z"},"content_sha256":"c0c7a658b2371b89a58c2b909b6b40b57ea9bcda53e29cac86dd7d1ea909ebab","schema_version":"1.0","event_id":"sha256:c0c7a658b2371b89a58c2b909b6b40b57ea9bcda53e29cac86dd7d1ea909ebab"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:BKJKL44WTAZQSNQKDBYT2MWD73","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nernst Effect in NdBa_2[Cu_{1-y}Ni_y]_3O_{7-\\delta}","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"A. Freimuth, A. V. Sologubenko, J. A. Mydosh, N. Johannsen, Th. Wolf, T. Lorenz","submitted_at":"2007-06-11T13:15:15Z","abstract_excerpt":"In NdBa_2[Cu_{1-y}Ni_y]_3O_{7-\\delta}, magnetic Ni-impurities suppress Tc but at the same time the pseudogap is strongly enhanced. This unique feature makes it an ideal system to study possible relations between the anomalous Nernst effect, superconductivity and the pseudogap. We present Nernst effect measurements on a series of optimally doped (O_7) and underdoped (O_{6.8}) samples with Ni contents ranging from y=0 to 0.12. In all samples an onset of the Nernst signal is found at T^\\nu > Tc. For the optimally doped samples T^\\nu and Tc decrease simultaneously with increasing Ni content. The u"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.1463","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0706.1463/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":"2026-07-04T15:04:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UnybRSUrDCm2ejNSOJc6m5NVVY54jS2Typ3cA2QgFvL8mgIQls+jkirNg5aaz90E0BZijuu12pcDBs7++GqdDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T06:15:55.001739Z"},"content_sha256":"83f5eed4ba1bac09e491afd53f2e95bd0021bea4cd0cd6ce7a08cefc5d9606a6","schema_version":"1.0","event_id":"sha256:83f5eed4ba1bac09e491afd53f2e95bd0021bea4cd0cd6ce7a08cefc5d9606a6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BKJKL44WTAZQSNQKDBYT2MWD73/bundle.json","state_url":"https://pith.science/pith/BKJKL44WTAZQSNQKDBYT2MWD73/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BKJKL44WTAZQSNQKDBYT2MWD73/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":"2026-08-05T06:15:55Z","links":{"resolver":"https://pith.science/pith/BKJKL44WTAZQSNQKDBYT2MWD73","bundle":"https://pith.science/pith/BKJKL44WTAZQSNQKDBYT2MWD73/bundle.json","state":"https://pith.science/pith/BKJKL44WTAZQSNQKDBYT2MWD73/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BKJKL44WTAZQSNQKDBYT2MWD73/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:BKJKL44WTAZQSNQKDBYT2MWD73","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":"48dc946e3bf83e88f14e450de3d880e57137ba225def93b324dc692a7cba8b2d","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2007-06-11T13:15:15Z","title_canon_sha256":"d5a57ec25a451a73f48dad482ee15cd1c8edd484ef8d24527f6996cfe13017ae"},"schema_version":"1.0","source":{"id":"0706.1463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.1463","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"arxiv_version","alias_value":"0706.1463v1","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.1463","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"pith_short_12","alias_value":"BKJKL44WTAZQ","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"pith_short_16","alias_value":"BKJKL44WTAZQSNQK","created_at":"2026-07-04T15:04:04Z"},{"alias_kind":"pith_short_8","alias_value":"BKJKL44W","created_at":"2026-07-04T15:04:04Z"}],"graph_snapshots":[{"event_id":"sha256:83f5eed4ba1bac09e491afd53f2e95bd0021bea4cd0cd6ce7a08cefc5d9606a6","target":"graph","created_at":"2026-07-04T15:04:04Z","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/0706.1463/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In NdBa_2[Cu_{1-y}Ni_y]_3O_{7-\\delta}, magnetic Ni-impurities suppress Tc but at the same time the pseudogap is strongly enhanced. This unique feature makes it an ideal system to study possible relations between the anomalous Nernst effect, superconductivity and the pseudogap. We present Nernst effect measurements on a series of optimally doped (O_7) and underdoped (O_{6.8}) samples with Ni contents ranging from y=0 to 0.12. In all samples an onset of the Nernst signal is found at T^\\nu > Tc. For the optimally doped samples T^\\nu and Tc decrease simultaneously with increasing Ni content. The u","authors_text":"A. Freimuth, A. V. Sologubenko, J. A. Mydosh, N. Johannsen, Th. Wolf, T. Lorenz","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2007-06-11T13:15:15Z","title":"Nernst Effect in NdBa_2[Cu_{1-y}Ni_y]_3O_{7-\\delta}"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.1463","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:c0c7a658b2371b89a58c2b909b6b40b57ea9bcda53e29cac86dd7d1ea909ebab","target":"record","created_at":"2026-07-04T15:04:04Z","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":"48dc946e3bf83e88f14e450de3d880e57137ba225def93b324dc692a7cba8b2d","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2007-06-11T13:15:15Z","title_canon_sha256":"d5a57ec25a451a73f48dad482ee15cd1c8edd484ef8d24527f6996cfe13017ae"},"schema_version":"1.0","source":{"id":"0706.1463","kind":"arxiv","version":1}},"canonical_sha256":"0a92a5f396983309360a18713d32c3fedc537e50e61905eca197cd77803bef7a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a92a5f396983309360a18713d32c3fedc537e50e61905eca197cd77803bef7a","first_computed_at":"2026-07-04T15:04:04.637960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:04:04.637960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DBr5gviKUEskW/uwuEw3WelieQHx24Ladg0ACRXWRu1zQMwkcJlaU1+Y73WGSRjDdk8D2sjeFPKwBG9/aF5XAg==","signature_status":"signed_v1","signed_at":"2026-07-04T15:04:04.638350Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.1463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0c7a658b2371b89a58c2b909b6b40b57ea9bcda53e29cac86dd7d1ea909ebab","sha256:83f5eed4ba1bac09e491afd53f2e95bd0021bea4cd0cd6ce7a08cefc5d9606a6"],"state_sha256":"cc67c7579b565c5e2d9636d655abd195b03e99791dea8b1ea1f1c36197568461"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AszYnZ8hlXuFB7KUn2lG87TYDnleaVsBwQTmXqo5rMJ1ncIxsbHiEfw4vP/9c4UKX+PkrTs7QCiy9cGZfiZSBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T06:15:55.012235Z","bundle_sha256":"f5043fc0ad37ef946d87124d1cfab32c59cee8c0b168592213d7de7415a5880f"}}