{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:QCA56RKNJ4X554J2CCUG3GTJOS","short_pith_number":"pith:QCA56RKN","canonical_record":{"source":{"id":"cond-mat/0107244","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-07-12T05:14:45Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"de0e004ecda1acacef73f2a20fff21b83a3df042688ef37b0edc0aec0ee0e8a9","abstract_canon_sha256":"cd2c62aea3e17732d8c2ed721f9bb090e05015ba21d3e52c23f3c2d1c6a17e37"},"schema_version":"1.0"},"canonical_sha256":"8081df454d4f2fdef13a10a86d9a6974a2b55bf210b329bc12501dee9c0ecd22","source":{"kind":"arxiv","id":"cond-mat/0107244","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0107244","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0107244v1","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0107244","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"pith_short_12","alias_value":"QCA56RKNJ4X5","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"QCA56RKNJ4X554J2","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"QCA56RKN","created_at":"2026-07-04T16:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:QCA56RKNJ4X554J2CCUG3GTJOS","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0107244","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-07-12T05:14:45Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"de0e004ecda1acacef73f2a20fff21b83a3df042688ef37b0edc0aec0ee0e8a9","abstract_canon_sha256":"cd2c62aea3e17732d8c2ed721f9bb090e05015ba21d3e52c23f3c2d1c6a17e37"},"schema_version":"1.0"},"canonical_sha256":"8081df454d4f2fdef13a10a86d9a6974a2b55bf210b329bc12501dee9c0ecd22","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:25:58.861478Z","signature_b64":"ik4z86xgm64f+lw8c+h5NQLgKEczunm6KMEVwism7ijz0d1WdZdAGbjNDB7gzb25q3HERXplmEMNT4myhA5PAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8081df454d4f2fdef13a10a86d9a6974a2b55bf210b329bc12501dee9c0ecd22","last_reissued_at":"2026-07-04T16:25:58.861093Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:25:58.861093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0107244","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":"2026-07-04T16:25:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qKjkQXH9QXoX13b63Nm2AqjfKlDFwceYM3Mrp9kbGxnSoAZQHOZbAFFCBnc9MtVUOrJjfgR3u5BeaGmHKT4ZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T11:43:44.732506Z"},"content_sha256":"357d0c02b7c44cf083cdbbfc4e5636bd395ee68c17ba7c7493e45a0fc2fd7a04","schema_version":"1.0","event_id":"sha256:357d0c02b7c44cf083cdbbfc4e5636bd395ee68c17ba7c7493e45a0fc2fd7a04"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:QCA56RKNJ4X554J2CCUG3GTJOS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Anomalous electronic structure and pseudogap effects in Nd_1.85Ce_0.15CuO_4","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"A. Damascelli, C. Kim, D.H. Lu, D.L. Feng, F. Ronning, K.M. Shen, M. Greven (Stanford University), N. Kaneko, N.P. Armitage, P. Bogdanov, P.K. Mang, Y. Onose, Y. Taguchi, Y. Tokura (University of Tokyo), Z.-X. Shen (Stanford University)","submitted_at":"2001-07-12T05:14:45Z","abstract_excerpt":"We report a high-resolution angle-resolved photoemission spectroscopic (ARPES) study of the electron-doped (n-type) cuprate superconductor Nd_1.85Ce_0.15CuO_4. We observe regions along the Fermi surface where the near-E_F intensity is suppressed and the spectral features are broad in a manner reminiscent of the high-energy ``pseudogap'' in the underdoped p-type (hole doped) cuprates. However, instead of occurring near the (pi, 0) region, as in the p-type materials, this pseudogap falls near the intersection of the underlying Fermi surface with the antiferromagnetic Brillouin zone boundary."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0107244","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/cond-mat/0107244/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":"2026-07-04T16:25:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FzJtsxtDgoIzmBe6Fc6Ib1gh+F1Qb/99coKsd8BA9R3XPsaCK2p1K3KcOgMXEaHfDNHqWCKviKROyj4FWBVKDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T11:43:44.732871Z"},"content_sha256":"9addd9667479440f638961c2c168ff7ba37786f37bb1f129eb6abb36c1db1379","schema_version":"1.0","event_id":"sha256:9addd9667479440f638961c2c168ff7ba37786f37bb1f129eb6abb36c1db1379"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QCA56RKNJ4X554J2CCUG3GTJOS/bundle.json","state_url":"https://pith.science/pith/QCA56RKNJ4X554J2CCUG3GTJOS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QCA56RKNJ4X554J2CCUG3GTJOS/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":"2026-07-05T11:43:44Z","links":{"resolver":"https://pith.science/pith/QCA56RKNJ4X554J2CCUG3GTJOS","bundle":"https://pith.science/pith/QCA56RKNJ4X554J2CCUG3GTJOS/bundle.json","state":"https://pith.science/pith/QCA56RKNJ4X554J2CCUG3GTJOS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QCA56RKNJ4X554J2CCUG3GTJOS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:QCA56RKNJ4X554J2CCUG3GTJOS","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":"cd2c62aea3e17732d8c2ed721f9bb090e05015ba21d3e52c23f3c2d1c6a17e37","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-07-12T05:14:45Z","title_canon_sha256":"de0e004ecda1acacef73f2a20fff21b83a3df042688ef37b0edc0aec0ee0e8a9"},"schema_version":"1.0","source":{"id":"cond-mat/0107244","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0107244","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0107244v1","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0107244","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"pith_short_12","alias_value":"QCA56RKNJ4X5","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"QCA56RKNJ4X554J2","created_at":"2026-07-04T16:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"QCA56RKN","created_at":"2026-07-04T16:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:9addd9667479440f638961c2c168ff7ba37786f37bb1f129eb6abb36c1db1379","target":"graph","created_at":"2026-07-04T16:25:58Z","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/0107244/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report a high-resolution angle-resolved photoemission spectroscopic (ARPES) study of the electron-doped (n-type) cuprate superconductor Nd_1.85Ce_0.15CuO_4. We observe regions along the Fermi surface where the near-E_F intensity is suppressed and the spectral features are broad in a manner reminiscent of the high-energy ``pseudogap'' in the underdoped p-type (hole doped) cuprates. However, instead of occurring near the (pi, 0) region, as in the p-type materials, this pseudogap falls near the intersection of the underlying Fermi surface with the antiferromagnetic Brillouin zone boundary.","authors_text":"A. Damascelli, C. Kim, D.H. Lu, D.L. Feng, F. Ronning, K.M. Shen, M. Greven (Stanford University), N. Kaneko, N.P. Armitage, P. Bogdanov, P.K. Mang, Y. Onose, Y. Taguchi, Y. Tokura (University of Tokyo), Z.-X. Shen (Stanford University)","cross_cats":["cond-mat.str-el"],"headline":"","license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-07-12T05:14:45Z","title":"Anomalous electronic structure and pseudogap effects in Nd_1.85Ce_0.15CuO_4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0107244","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":"sha256:357d0c02b7c44cf083cdbbfc4e5636bd395ee68c17ba7c7493e45a0fc2fd7a04","target":"record","created_at":"2026-07-04T16:25:58Z","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":"cd2c62aea3e17732d8c2ed721f9bb090e05015ba21d3e52c23f3c2d1c6a17e37","cross_cats_sorted":["cond-mat.str-el"],"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2001-07-12T05:14:45Z","title_canon_sha256":"de0e004ecda1acacef73f2a20fff21b83a3df042688ef37b0edc0aec0ee0e8a9"},"schema_version":"1.0","source":{"id":"cond-mat/0107244","kind":"arxiv","version":1}},"canonical_sha256":"8081df454d4f2fdef13a10a86d9a6974a2b55bf210b329bc12501dee9c0ecd22","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8081df454d4f2fdef13a10a86d9a6974a2b55bf210b329bc12501dee9c0ecd22","first_computed_at":"2026-07-04T16:25:58.861093Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:25:58.861093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ik4z86xgm64f+lw8c+h5NQLgKEczunm6KMEVwism7ijz0d1WdZdAGbjNDB7gzb25q3HERXplmEMNT4myhA5PAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T16:25:58.861478Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0107244","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:357d0c02b7c44cf083cdbbfc4e5636bd395ee68c17ba7c7493e45a0fc2fd7a04","sha256:9addd9667479440f638961c2c168ff7ba37786f37bb1f129eb6abb36c1db1379"],"state_sha256":"ca32df3989a5afd23f156608a61f234c0b9e0c49bd2dc001587779af67f846bb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KG9TUo1AVtMdBJGYsbY+6h743F/7sv7TanSHVEx7lDWtwGZjc5ysZ6IKIeO1oo88w2jLiPvzHtw3BCIjvFWeAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T11:43:44.734798Z","bundle_sha256":"c26b075acdb951a5b7d3073831f164aaece8133177d5576fd060da752a4ffc17"}}