{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:3DBBCSYYDVIDHXY3BVXE6MRES3","short_pith_number":"pith:3DBBCSYY","canonical_record":{"source":{"id":"1010.1618","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-10-08T07:49:56Z","cross_cats_sorted":[],"title_canon_sha256":"96c9e7871229c19afd7ac2a6a7a099337e48812bce7ce52afdf6b160c6d5221f","abstract_canon_sha256":"2f1ce3c46032c3e087aa95ce9fd4c9ff788fdbe667a73c30ad3a5feffd247339"},"schema_version":"1.0"},"canonical_sha256":"d8c2114b181d5033df1b0d6e4f322496f1cddd64b59e06debbb1afaf9787eaa2","source":{"kind":"arxiv","id":"1010.1618","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.1618","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"arxiv_version","alias_value":"1010.1618v1","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.1618","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"pith_short_12","alias_value":"3DBBCSYYDVID","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3DBBCSYYDVIDHXY3","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3DBBCSYY","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:3DBBCSYYDVIDHXY3BVXE6MRES3","target":"record","payload":{"canonical_record":{"source":{"id":"1010.1618","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-10-08T07:49:56Z","cross_cats_sorted":[],"title_canon_sha256":"96c9e7871229c19afd7ac2a6a7a099337e48812bce7ce52afdf6b160c6d5221f","abstract_canon_sha256":"2f1ce3c46032c3e087aa95ce9fd4c9ff788fdbe667a73c30ad3a5feffd247339"},"schema_version":"1.0"},"canonical_sha256":"d8c2114b181d5033df1b0d6e4f322496f1cddd64b59e06debbb1afaf9787eaa2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:07.654134Z","signature_b64":"JQL0J+iSai68FUEemnQPQquRT43YUfbNfxjUzsEK6e9FXtB459NppoQHIBhRO14tyRPucoWvApoG5BXBfD9oCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d8c2114b181d5033df1b0d6e4f322496f1cddd64b59e06debbb1afaf9787eaa2","last_reissued_at":"2026-05-18T02:05:07.653465Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:07.653465Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.1618","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":"2026-05-18T02:05:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NQYd/tdJJwsp+ranmyR6QIR8qxuOHpXzRU8TdCJ1PT2bEIyGN73Q2wW9RgSpGPxFdoseeR7+Xd+i/AbZNRrGAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T04:10:41.876655Z"},"content_sha256":"3268900e41946a4aa982a2d5490672f2550e77ec4761ba7e24dd5460f7015b56","schema_version":"1.0","event_id":"sha256:3268900e41946a4aa982a2d5490672f2550e77ec4761ba7e24dd5460f7015b56"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:3DBBCSYYDVIDHXY3BVXE6MRES3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Illuminating the dark corridor in graphene: polarization dependence of angle-resolved photoemission spectroscopy on graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Christian R. Ast, Hartmut Hoechst, Isabella Gierz, Juergen Henk, Klaus Kern","submitted_at":"2010-10-08T07:49:56Z","abstract_excerpt":"We have used s- and p-polarized synchrotron radiation to image the electronic structure of epitaxial graphene near the K-point by angular resolved photoemission spectroscopy (ARPES). Part of the experimental Fermi surface is suppressed due to the interference of photoelectrons emitted from the two equivalent carbon atoms per unit cell of graphene's honeycomb lattice. Here we show that by rotating the polarization vector, we are able to illuminate this 'dark corridor' indicating that the present theoretical understanding is oversimplified. Our measurements are supported by first-principles phot"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.1618","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":"2026-05-18T02:05:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qz3+1h3Dpbc0b9J2CHnvUzvztzfuMTbqdbayMm94LZ0b/bJI/W9iBBh/awqe/dXU8yRR+6mlS5iCi57c547/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T04:10:41.877008Z"},"content_sha256":"1d97c388fc7129b16ede722274faa7c288eab1aa726bc5942a27dcd92a42e5c5","schema_version":"1.0","event_id":"sha256:1d97c388fc7129b16ede722274faa7c288eab1aa726bc5942a27dcd92a42e5c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3DBBCSYYDVIDHXY3BVXE6MRES3/bundle.json","state_url":"https://pith.science/pith/3DBBCSYYDVIDHXY3BVXE6MRES3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3DBBCSYYDVIDHXY3BVXE6MRES3/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":"2026-05-30T04:10:41Z","links":{"resolver":"https://pith.science/pith/3DBBCSYYDVIDHXY3BVXE6MRES3","bundle":"https://pith.science/pith/3DBBCSYYDVIDHXY3BVXE6MRES3/bundle.json","state":"https://pith.science/pith/3DBBCSYYDVIDHXY3BVXE6MRES3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3DBBCSYYDVIDHXY3BVXE6MRES3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:3DBBCSYYDVIDHXY3BVXE6MRES3","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":"2f1ce3c46032c3e087aa95ce9fd4c9ff788fdbe667a73c30ad3a5feffd247339","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-10-08T07:49:56Z","title_canon_sha256":"96c9e7871229c19afd7ac2a6a7a099337e48812bce7ce52afdf6b160c6d5221f"},"schema_version":"1.0","source":{"id":"1010.1618","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.1618","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"arxiv_version","alias_value":"1010.1618v1","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.1618","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"pith_short_12","alias_value":"3DBBCSYYDVID","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3DBBCSYYDVIDHXY3","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3DBBCSYY","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:1d97c388fc7129b16ede722274faa7c288eab1aa726bc5942a27dcd92a42e5c5","target":"graph","created_at":"2026-05-18T02:05:07Z","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 used s- and p-polarized synchrotron radiation to image the electronic structure of epitaxial graphene near the K-point by angular resolved photoemission spectroscopy (ARPES). Part of the experimental Fermi surface is suppressed due to the interference of photoelectrons emitted from the two equivalent carbon atoms per unit cell of graphene's honeycomb lattice. Here we show that by rotating the polarization vector, we are able to illuminate this 'dark corridor' indicating that the present theoretical understanding is oversimplified. Our measurements are supported by first-principles phot","authors_text":"Christian R. Ast, Hartmut Hoechst, Isabella Gierz, Juergen Henk, Klaus Kern","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-10-08T07:49:56Z","title":"Illuminating the dark corridor in graphene: polarization dependence of angle-resolved photoemission spectroscopy on graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.1618","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":"sha256:3268900e41946a4aa982a2d5490672f2550e77ec4761ba7e24dd5460f7015b56","target":"record","created_at":"2026-05-18T02:05:07Z","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":"2f1ce3c46032c3e087aa95ce9fd4c9ff788fdbe667a73c30ad3a5feffd247339","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-10-08T07:49:56Z","title_canon_sha256":"96c9e7871229c19afd7ac2a6a7a099337e48812bce7ce52afdf6b160c6d5221f"},"schema_version":"1.0","source":{"id":"1010.1618","kind":"arxiv","version":1}},"canonical_sha256":"d8c2114b181d5033df1b0d6e4f322496f1cddd64b59e06debbb1afaf9787eaa2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8c2114b181d5033df1b0d6e4f322496f1cddd64b59e06debbb1afaf9787eaa2","first_computed_at":"2026-05-18T02:05:07.653465Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:07.653465Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JQL0J+iSai68FUEemnQPQquRT43YUfbNfxjUzsEK6e9FXtB459NppoQHIBhRO14tyRPucoWvApoG5BXBfD9oCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:07.654134Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.1618","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3268900e41946a4aa982a2d5490672f2550e77ec4761ba7e24dd5460f7015b56","sha256:1d97c388fc7129b16ede722274faa7c288eab1aa726bc5942a27dcd92a42e5c5"],"state_sha256":"e66a85948e6ec7a5b9ee55d4f4b2f1e065dd6a0b02175db2a318115b7036ad39"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EHClDu4aIVmqlsFAQa3+BAf0VMOKFedbo8/fBtIcq//EUj+CNebHut0RJZPD9i8cMnewE0jDhhoFTuhoGGt7Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T04:10:41.879060Z","bundle_sha256":"44c8b8fea21e626d2b752b0c7a24080b7556c5a695a079d9aff71bac43465567"}}