{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:NOPJJC25AG2PAJY3IFRXJI2NAY","short_pith_number":"pith:NOPJJC25","canonical_record":{"source":{"id":"cond-mat/0109036","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2001-09-03T18:06:30Z","cross_cats_sorted":[],"title_canon_sha256":"07249459225882ef9060d2a9b73c4a32b32cf9c161c65ba717b4400913223400","abstract_canon_sha256":"dfa0a6ea346a7cbf595bac9b676a00cfb99e23867d38bfb2592adcd9c07b9097"},"schema_version":"1.0"},"canonical_sha256":"6b9e948b5d01b4f0271b416374a34d060a5c394cf23b4f0f3127a1e1f75d4331","source":{"kind":"arxiv","id":"cond-mat/0109036","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0109036","created_at":"2026-05-18T03:24:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0109036v1","created_at":"2026-05-18T03:24:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0109036","created_at":"2026-05-18T03:24:39Z"},{"alias_kind":"pith_short_12","alias_value":"NOPJJC25AG2P","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"NOPJJC25AG2PAJY3","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"NOPJJC25","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:NOPJJC25AG2PAJY3IFRXJI2NAY","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0109036","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2001-09-03T18:06:30Z","cross_cats_sorted":[],"title_canon_sha256":"07249459225882ef9060d2a9b73c4a32b32cf9c161c65ba717b4400913223400","abstract_canon_sha256":"dfa0a6ea346a7cbf595bac9b676a00cfb99e23867d38bfb2592adcd9c07b9097"},"schema_version":"1.0"},"canonical_sha256":"6b9e948b5d01b4f0271b416374a34d060a5c394cf23b4f0f3127a1e1f75d4331","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:39.844235Z","signature_b64":"qDSxW4nWNeOWV624IxGmolpPtjQdOZzsEo+FAp0NeI99JDpVOvN0v48yanpuWOVoCp2o8AmpjpzUDH5GeQELCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b9e948b5d01b4f0271b416374a34d060a5c394cf23b4f0f3127a1e1f75d4331","last_reissued_at":"2026-05-18T03:24:39.843555Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:39.843555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0109036","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":"2026-05-18T03:24:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gJ5RPVzNCzdVaEwzpqjZSj5ukl+pUqGklwdwf1UNkbykxpuBpGKeTDVZdMtRFp6KWiriJRkG2XgXGqtVjsPnDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T19:57:07.208579Z"},"content_sha256":"d35cbf095a3a3d2a58f6a4b970378280a04de45b74fd7fff41866e55513ce2df","schema_version":"1.0","event_id":"sha256:d35cbf095a3a3d2a58f6a4b970378280a04de45b74fd7fff41866e55513ce2df"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:NOPJJC25AG2PAJY3IFRXJI2NAY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Theory of ARPES intensities from the CuO$_2$ plane","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"C. Dahnken, R. Eder","submitted_at":"2001-09-03T18:06:30Z","abstract_excerpt":"We present a theory for the photon energy and polarization dependence of ARPES intensities from the CuO$_2$ plane in the framework of strong correlation models. We show that for electric field vector in the CuO$_2$ plane the `radiation characteristics' of the $O$ $2p_\\sigma$ and $Cu$ $3d_{x^2-y^2}$ orbitals are strongly peaked along the CuO$_2$ plane, i.e. most photoelectrons are emitted at grazing angles. This suggests that surface states play an important role in the observed ARPES spectra, consistent with recent data from Sr$_2$CuCl$_2$O$_2$. We show that a combination of surface state disp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0109036","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":""},"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":"2026-05-18T03:24:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EBsG3hUEjqgWWygmd7nWd+mPJ9hyo7lU4NOTP7zFBw4MFslJ9+Wj5LzkGjxtBvXB+SV5j1NUlbz8tz/SeelpBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T19:57:07.209216Z"},"content_sha256":"821e0f4539bfcae7828c812b5797443b02983e61ec9e13f4f91ef083a92b4e64","schema_version":"1.0","event_id":"sha256:821e0f4539bfcae7828c812b5797443b02983e61ec9e13f4f91ef083a92b4e64"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NOPJJC25AG2PAJY3IFRXJI2NAY/bundle.json","state_url":"https://pith.science/pith/NOPJJC25AG2PAJY3IFRXJI2NAY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NOPJJC25AG2PAJY3IFRXJI2NAY/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":"2026-06-11T19:57:07Z","links":{"resolver":"https://pith.science/pith/NOPJJC25AG2PAJY3IFRXJI2NAY","bundle":"https://pith.science/pith/NOPJJC25AG2PAJY3IFRXJI2NAY/bundle.json","state":"https://pith.science/pith/NOPJJC25AG2PAJY3IFRXJI2NAY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NOPJJC25AG2PAJY3IFRXJI2NAY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:NOPJJC25AG2PAJY3IFRXJI2NAY","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":"dfa0a6ea346a7cbf595bac9b676a00cfb99e23867d38bfb2592adcd9c07b9097","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2001-09-03T18:06:30Z","title_canon_sha256":"07249459225882ef9060d2a9b73c4a32b32cf9c161c65ba717b4400913223400"},"schema_version":"1.0","source":{"id":"cond-mat/0109036","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0109036","created_at":"2026-05-18T03:24:39Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0109036v1","created_at":"2026-05-18T03:24:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0109036","created_at":"2026-05-18T03:24:39Z"},{"alias_kind":"pith_short_12","alias_value":"NOPJJC25AG2P","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"NOPJJC25AG2PAJY3","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"NOPJJC25","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:821e0f4539bfcae7828c812b5797443b02983e61ec9e13f4f91ef083a92b4e64","target":"graph","created_at":"2026-05-18T03:24:39Z","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 present a theory for the photon energy and polarization dependence of ARPES intensities from the CuO$_2$ plane in the framework of strong correlation models. We show that for electric field vector in the CuO$_2$ plane the `radiation characteristics' of the $O$ $2p_\\sigma$ and $Cu$ $3d_{x^2-y^2}$ orbitals are strongly peaked along the CuO$_2$ plane, i.e. most photoelectrons are emitted at grazing angles. This suggests that surface states play an important role in the observed ARPES spectra, consistent with recent data from Sr$_2$CuCl$_2$O$_2$. We show that a combination of surface state disp","authors_text":"C. Dahnken, R. Eder","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2001-09-03T18:06:30Z","title":"Theory of ARPES intensities from the CuO$_2$ plane"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0109036","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:d35cbf095a3a3d2a58f6a4b970378280a04de45b74fd7fff41866e55513ce2df","target":"record","created_at":"2026-05-18T03:24:39Z","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":"dfa0a6ea346a7cbf595bac9b676a00cfb99e23867d38bfb2592adcd9c07b9097","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2001-09-03T18:06:30Z","title_canon_sha256":"07249459225882ef9060d2a9b73c4a32b32cf9c161c65ba717b4400913223400"},"schema_version":"1.0","source":{"id":"cond-mat/0109036","kind":"arxiv","version":1}},"canonical_sha256":"6b9e948b5d01b4f0271b416374a34d060a5c394cf23b4f0f3127a1e1f75d4331","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b9e948b5d01b4f0271b416374a34d060a5c394cf23b4f0f3127a1e1f75d4331","first_computed_at":"2026-05-18T03:24:39.843555Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:24:39.843555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qDSxW4nWNeOWV624IxGmolpPtjQdOZzsEo+FAp0NeI99JDpVOvN0v48yanpuWOVoCp2o8AmpjpzUDH5GeQELCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:24:39.844235Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0109036","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d35cbf095a3a3d2a58f6a4b970378280a04de45b74fd7fff41866e55513ce2df","sha256:821e0f4539bfcae7828c812b5797443b02983e61ec9e13f4f91ef083a92b4e64"],"state_sha256":"1c3b708cbb14f438d340e1c15ce363734d7987579e8634046f6604bb2e658333"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oOk4uj5NedSDL7pJfPzDxRtvcd3d9XRgYp2kiVDIooOYNVkCPLQgz8a8tLSU6fSa2wmGuE/eC/OBT2CGsaQPAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T19:57:07.216366Z","bundle_sha256":"125fff4c6984032b0f9b4e5f65153cf42867b4d85c08a01f51d7d7da0b43fde7"}}