{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:3TNW3PMXLAHVZ7E2YNYWXHFC36","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":"1ebc15e465f008c8dd496ab43c1f53d54a525a1990b8435d308afe2ed9da1161","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2002-02-19T23:27:15Z","title_canon_sha256":"10db10aa4a61df285823bad44cdd902b2394edd2f7c8febdb39c02b91281a18b"},"schema_version":"1.0","source":{"id":"cond-mat/0202329","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0202329","created_at":"2026-07-04T16:31:43Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0202329v2","created_at":"2026-07-04T16:31:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0202329","created_at":"2026-07-04T16:31:43Z"},{"alias_kind":"pith_short_12","alias_value":"3TNW3PMXLAHV","created_at":"2026-07-04T16:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"3TNW3PMXLAHVZ7E2","created_at":"2026-07-04T16:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"3TNW3PMX","created_at":"2026-07-04T16:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:bb062547a2889f92dda576f2a770dc0b22a848c542e33e0d1f91de4a4136e344","target":"graph","created_at":"2026-07-04T16:31:43Z","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/cond-mat/0202329/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using high-resolution angle-resolved photoemission spectroscopy on $Bi_{2}Sr_{2}CaCu_{2}O_{8+\\delta}$, we have made the first observation of a mass renormalization or \"kink\" in the E vs. $\\vec k$ dispersion relation localized near $(\\pi, 0)$. Compared to the kink observed along the nodal direction, this new effect is clearly stronger, appears at a lower energy near 40 meV, and is only present in the superconducting state. The kink energy scale defines a cutoff below which well-defined quasiparticle excitations occur. This effect is likely due to coupling to a bosonic excitation, with the most ","authors_text":"A. D. Gromko, A. V. Fedorov, D. S. Dessau, J. D. Koralek, K. Oka, Y. Aiura, Y. -D. Chuang, Yoichi Ando, Y. Yamaguchi","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2002-02-19T23:27:15Z","title":"Mass-renormalized electronic excitations at ($\\pi$, 0) in the superconducting state of $Bi_{2}Sr_{2}CaCu_{2}O_{8+\\delta}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0202329","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":"sha256:687c25f3fdd12ce72a6dcb789e6efacd992a7a462b986389f262f761d07c7d69","target":"record","created_at":"2026-07-04T16:31:43Z","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":"1ebc15e465f008c8dd496ab43c1f53d54a525a1990b8435d308afe2ed9da1161","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2002-02-19T23:27:15Z","title_canon_sha256":"10db10aa4a61df285823bad44cdd902b2394edd2f7c8febdb39c02b91281a18b"},"schema_version":"1.0","source":{"id":"cond-mat/0202329","kind":"arxiv","version":2}},"canonical_sha256":"dcdb6dbd97580f5cfc9ac3716b9ca2df851c4aeab22318afffb7f270fc9a4e20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dcdb6dbd97580f5cfc9ac3716b9ca2df851c4aeab22318afffb7f270fc9a4e20","first_computed_at":"2026-07-04T16:31:43.094226Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:31:43.094226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9fNC6uok+bv3Vs463i6qsxz5m1lSsGGD80jM/zHU7DbNk8yMXDNkTVvIsd24NRvnvzSL+myL3VdPLko3DF8vDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:31:43.094641Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0202329","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:687c25f3fdd12ce72a6dcb789e6efacd992a7a462b986389f262f761d07c7d69","sha256:bb062547a2889f92dda576f2a770dc0b22a848c542e33e0d1f91de4a4136e344"],"state_sha256":"b26db5b1dbb6b239d0bb807b266f05c699fca28d1bac7710f1192200e71b7df4"}