{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:MPVJWOVPMHOC2YSQUZLR5XTQAH","short_pith_number":"pith:MPVJWOVP","canonical_record":{"source":{"id":"0803.0310","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-03T20:39:49Z","cross_cats_sorted":[],"title_canon_sha256":"bde7ba03635ae880e05fa345428cb7d13229c1fbde0799378132fb3de882bf98","abstract_canon_sha256":"022d21bd0bdc1b8a108cb0b583093c7277005fd8dc3984805aca698b0b741c05"},"schema_version":"1.0"},"canonical_sha256":"63ea9b3aaf61dc2d6250a6571ede7001d2063229946a1364a033c827fb31f935","source":{"kind":"arxiv","id":"0803.0310","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.0310","created_at":"2026-05-18T00:48:29Z"},{"alias_kind":"arxiv_version","alias_value":"0803.0310v2","created_at":"2026-05-18T00:48:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.0310","created_at":"2026-05-18T00:48:29Z"},{"alias_kind":"pith_short_12","alias_value":"MPVJWOVPMHOC","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"MPVJWOVPMHOC2YSQ","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"MPVJWOVP","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:MPVJWOVPMHOC2YSQUZLR5XTQAH","target":"record","payload":{"canonical_record":{"source":{"id":"0803.0310","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-03T20:39:49Z","cross_cats_sorted":[],"title_canon_sha256":"bde7ba03635ae880e05fa345428cb7d13229c1fbde0799378132fb3de882bf98","abstract_canon_sha256":"022d21bd0bdc1b8a108cb0b583093c7277005fd8dc3984805aca698b0b741c05"},"schema_version":"1.0"},"canonical_sha256":"63ea9b3aaf61dc2d6250a6571ede7001d2063229946a1364a033c827fb31f935","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:48:29.173711Z","signature_b64":"+XEHX+GrgLAa/of2xsce8Xj1Buos4jZDyjzaLfg5CvdAuOesfvzRf60bOY1LIWjHHLpg82wJBNCJleTKGMLNBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63ea9b3aaf61dc2d6250a6571ede7001d2063229946a1364a033c827fb31f935","last_reissued_at":"2026-05-18T00:48:29.173078Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:48:29.173078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0803.0310","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:48:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HSLzuKe/rIt2hQVQH/CBAXFDMDmGI8BpJMnWadJJyHvMuhG2SdbzVhqcr8HfCLxsNp2ZdXUgz+Kv4YXC0AwiAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:54:24.984727Z"},"content_sha256":"9ae695d57dccdd4229125ad57fc784647f22c55cf2ceef6a88c2991cc79364b5","schema_version":"1.0","event_id":"sha256:9ae695d57dccdd4229125ad57fc784647f22c55cf2ceef6a88c2991cc79364b5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:MPVJWOVPMHOC2YSQUZLR5XTQAH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct observation of a Fermi surface and superconducting gap in LuNi2B2C","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. Kaminski, B. Harmon, C. Liu, D. Gardenghi, E. Rotenberg, G. Samolyuk, P. Canfield, P. Starowicz, R. Khasanov, S. Budko, T. Kondo, Y. Lee T. Ohta","submitted_at":"2008-03-03T20:39:49Z","abstract_excerpt":"We measured the Fermi surface (FS), band dispersion and superconducting gap in LuNi2B2C using Angle Resolved Photoemission Spectroscopy. Experimental data were compared with the tight-binding version of the Linear Muffin-Tin Orbital (LMTO) method and Linearized Augmented Plane-Wave (LAPW) calculations. We found reasonable agreement between the two calculations and experimental data. The measured FS exhibits large parallel regions with a nesting vector that agrees with a previous positron annihilation study and calculations of the generalized susceptibility. The measured dispersion curves also "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.0310","kind":"arxiv","version":2},"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":"2026-05-18T00:48:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2gBGCQtifPnmD894HAMJPictI16/yk2Cjgxd31ZU8lavv3tqYfT9TfxZ32LZbBv1VB0cZqgK49MfG/lWm0W9DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:54:24.985393Z"},"content_sha256":"0b9c5a967da18ff136c4e221d3fac3652f8c9377e87cfef0da3fde6cd0a11f3a","schema_version":"1.0","event_id":"sha256:0b9c5a967da18ff136c4e221d3fac3652f8c9377e87cfef0da3fde6cd0a11f3a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MPVJWOVPMHOC2YSQUZLR5XTQAH/bundle.json","state_url":"https://pith.science/pith/MPVJWOVPMHOC2YSQUZLR5XTQAH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MPVJWOVPMHOC2YSQUZLR5XTQAH/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":"2026-05-31T21:54:24Z","links":{"resolver":"https://pith.science/pith/MPVJWOVPMHOC2YSQUZLR5XTQAH","bundle":"https://pith.science/pith/MPVJWOVPMHOC2YSQUZLR5XTQAH/bundle.json","state":"https://pith.science/pith/MPVJWOVPMHOC2YSQUZLR5XTQAH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MPVJWOVPMHOC2YSQUZLR5XTQAH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:MPVJWOVPMHOC2YSQUZLR5XTQAH","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":"022d21bd0bdc1b8a108cb0b583093c7277005fd8dc3984805aca698b0b741c05","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-03T20:39:49Z","title_canon_sha256":"bde7ba03635ae880e05fa345428cb7d13229c1fbde0799378132fb3de882bf98"},"schema_version":"1.0","source":{"id":"0803.0310","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.0310","created_at":"2026-05-18T00:48:29Z"},{"alias_kind":"arxiv_version","alias_value":"0803.0310v2","created_at":"2026-05-18T00:48:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.0310","created_at":"2026-05-18T00:48:29Z"},{"alias_kind":"pith_short_12","alias_value":"MPVJWOVPMHOC","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"MPVJWOVPMHOC2YSQ","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"MPVJWOVP","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:0b9c5a967da18ff136c4e221d3fac3652f8c9377e87cfef0da3fde6cd0a11f3a","target":"graph","created_at":"2026-05-18T00:48:29Z","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 Fermi surface (FS), band dispersion and superconducting gap in LuNi2B2C using Angle Resolved Photoemission Spectroscopy. Experimental data were compared with the tight-binding version of the Linear Muffin-Tin Orbital (LMTO) method and Linearized Augmented Plane-Wave (LAPW) calculations. We found reasonable agreement between the two calculations and experimental data. The measured FS exhibits large parallel regions with a nesting vector that agrees with a previous positron annihilation study and calculations of the generalized susceptibility. The measured dispersion curves also ","authors_text":"A. Kaminski, B. Harmon, C. Liu, D. Gardenghi, E. Rotenberg, G. Samolyuk, P. Canfield, P. Starowicz, R. Khasanov, S. Budko, T. Kondo, Y. Lee T. Ohta","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-03T20:39:49Z","title":"Direct observation of a Fermi surface and superconducting gap in LuNi2B2C"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.0310","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":"sha256:9ae695d57dccdd4229125ad57fc784647f22c55cf2ceef6a88c2991cc79364b5","target":"record","created_at":"2026-05-18T00:48:29Z","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":"022d21bd0bdc1b8a108cb0b583093c7277005fd8dc3984805aca698b0b741c05","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"cond-mat.supr-con","submitted_at":"2008-03-03T20:39:49Z","title_canon_sha256":"bde7ba03635ae880e05fa345428cb7d13229c1fbde0799378132fb3de882bf98"},"schema_version":"1.0","source":{"id":"0803.0310","kind":"arxiv","version":2}},"canonical_sha256":"63ea9b3aaf61dc2d6250a6571ede7001d2063229946a1364a033c827fb31f935","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"63ea9b3aaf61dc2d6250a6571ede7001d2063229946a1364a033c827fb31f935","first_computed_at":"2026-05-18T00:48:29.173078Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:48:29.173078Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+XEHX+GrgLAa/of2xsce8Xj1Buos4jZDyjzaLfg5CvdAuOesfvzRf60bOY1LIWjHHLpg82wJBNCJleTKGMLNBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:48:29.173711Z","signed_message":"canonical_sha256_bytes"},"source_id":"0803.0310","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ae695d57dccdd4229125ad57fc784647f22c55cf2ceef6a88c2991cc79364b5","sha256:0b9c5a967da18ff136c4e221d3fac3652f8c9377e87cfef0da3fde6cd0a11f3a"],"state_sha256":"f22490775a689d1819ac172ae7dcac513f1446f9b4dc3f1486e247237c557428"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KoWHhyr5WRxAUW9hpj46iYUeZir+mPxbVqFNA0+w62BzyPhBukxijEbO6EqRahSfrkdKZvfpr+475KYMx3s3CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T21:54:24.989151Z","bundle_sha256":"4744a357aeb319b49a9174652e54b7faefff7c18e7d1b66cbfb181f81edbb785"}}