{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:EOJ4HIPUJGSKNT2VGLLDZMHU3Y","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":"80102eb676baa7fd768b873c30b1e0779680ab2f244b7460e210efa7c8d1298a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-05-06T08:30:34Z","title_canon_sha256":"da66e7a52291fefbe9ee8143d34a9ed24c59cf4b8e6a13af184a9c6477d64939"},"schema_version":"1.0","source":{"id":"1005.0926","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.0926","created_at":"2026-05-18T02:07:42Z"},{"alias_kind":"arxiv_version","alias_value":"1005.0926v1","created_at":"2026-05-18T02:07:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.0926","created_at":"2026-05-18T02:07:42Z"},{"alias_kind":"pith_short_12","alias_value":"EOJ4HIPUJGSK","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"EOJ4HIPUJGSKNT2V","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"EOJ4HIPU","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:f9cc3ad4f6671c76027d84f07f05a448bfaa29136be3101e784590671a16ac79","target":"graph","created_at":"2026-05-18T02:07:42Z","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 have studied Bi$_{2}$Sr$_{1.6}$Nd$_{0.4}$CuO$_{6+\\delta}$ using Angle Resolved Photoemission Spectroscopy in the optimal and overdoped regions of the phase diagram.  We identify a narrow crossover region in the electronic structure between the nodal and antinodal regions associated with the deviation from a pure d-wave gap function, an abrupt increase of the quasiparticle lifetime, the formation of Fermi arcs above T$_c$, and a sudden shift of the bosonic mode energy from higher energy, $\\sim${60meV}, near the nodal direction, to lower energy, $\\sim${20meV}, near the antinodal direction.  O","authors_text":"A. Lanzara, C.G. Hwang, C. Jozwiak, D.R. Garcia, H. Eisaki, J. Graf","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-05-06T08:30:34Z","title":"Crossover region between nodal and anti-nodal states at the Fermi level of optimally and overdoped Bi$_{2}$Sr$_{1.6}$Nd$_{0.4}$CuO$_{6+\\delta}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.0926","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:c3e04ce0ce1f4d1556f2c7c3517c812317fd70f38a39880551340d08bc13ffde","target":"record","created_at":"2026-05-18T02:07:42Z","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":"80102eb676baa7fd768b873c30b1e0779680ab2f244b7460e210efa7c8d1298a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-05-06T08:30:34Z","title_canon_sha256":"da66e7a52291fefbe9ee8143d34a9ed24c59cf4b8e6a13af184a9c6477d64939"},"schema_version":"1.0","source":{"id":"1005.0926","kind":"arxiv","version":1}},"canonical_sha256":"2393c3a1f449a4a6cf5532d63cb0f4de1e51094a6eb36eaeb4d3108ef3b2348a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2393c3a1f449a4a6cf5532d63cb0f4de1e51094a6eb36eaeb4d3108ef3b2348a","first_computed_at":"2026-05-18T02:07:42.304368Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:42.304368Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KTaqovf8/7lJezlqQdtWYxd/uKpTs1Gu7otfo/ZtKCJIJa/BQs7vKRtIu9eOKKlb7WEd2ORVz66+G7dqj0f1BA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:42.305204Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.0926","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3e04ce0ce1f4d1556f2c7c3517c812317fd70f38a39880551340d08bc13ffde","sha256:f9cc3ad4f6671c76027d84f07f05a448bfaa29136be3101e784590671a16ac79"],"state_sha256":"8d7b74e8492c21460f39dae895d2d39659de9dd4ebe6c472bd639efc91539ca3"}