{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:33FFIGUCCBAJTRLCWBSM3Z5KJD","short_pith_number":"pith:33FFIGUC","canonical_record":{"source":{"id":"1409.6832","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-24T05:26:20Z","cross_cats_sorted":[],"title_canon_sha256":"2e64501f63d6f39ac4512511852d232cbfcaefb852aecb3c74e06cdf665cef52","abstract_canon_sha256":"d8f0cd1a0aba5a03551cda11465691447e7227080a14e699bd0f7a7a4adc455f"},"schema_version":"1.0"},"canonical_sha256":"deca541a82104099c562b064cde7aa48fe55dbb19ddd69d81d2cc4a473e87c79","source":{"kind":"arxiv","id":"1409.6832","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6832","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6832v1","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6832","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"pith_short_12","alias_value":"33FFIGUCCBAJ","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"33FFIGUCCBAJTRLC","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"33FFIGUC","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:33FFIGUCCBAJTRLCWBSM3Z5KJD","target":"record","payload":{"canonical_record":{"source":{"id":"1409.6832","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-24T05:26:20Z","cross_cats_sorted":[],"title_canon_sha256":"2e64501f63d6f39ac4512511852d232cbfcaefb852aecb3c74e06cdf665cef52","abstract_canon_sha256":"d8f0cd1a0aba5a03551cda11465691447e7227080a14e699bd0f7a7a4adc455f"},"schema_version":"1.0"},"canonical_sha256":"deca541a82104099c562b064cde7aa48fe55dbb19ddd69d81d2cc4a473e87c79","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:42:00.344049Z","signature_b64":"y5D41A7SRfhVqjeMF0/HIPfMMV9mvzYKvQtCmDXMybIuLjc88c2E0TRCnA+RowK/L/jzF4AKZ/jzntC/pasqAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"deca541a82104099c562b064cde7aa48fe55dbb19ddd69d81d2cc4a473e87c79","last_reissued_at":"2026-05-18T02:42:00.343514Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:42:00.343514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.6832","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":"2026-05-18T02:42:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p9EB5UwDgXY1b+21Z0/vom6tJk5ldBSmgocWCDoPnzsspcMgnMcB70GcC5DQlmkoY4DHpHh4G5Wy5cdsHvxsDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T13:26:20.417406Z"},"content_sha256":"1df662979a3a354367b2fccf45cc82812abd1e766fcb15db2d8f592586ba654c","schema_version":"1.0","event_id":"sha256:1df662979a3a354367b2fccf45cc82812abd1e766fcb15db2d8f592586ba654c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:33FFIGUCCBAJTRLCWBSM3Z5KJD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interband interaction between Ge states and surface resonance band of Pb on Ge(001)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Haruka Kumeda, Hiroshi Daimon, Kazuki Kokui, Kousuke Kitagawa, Sakura N. Takeda, Tomohiro Sakata","submitted_at":"2014-09-24T05:26:20Z","abstract_excerpt":"We investigate the valence band structure of Pb on Ge(001) by Angle-Resolved Photoelectron Spectroscopy. Three Ge bands, G1, G2, and G3, were observed on Ge(001) 2x1 clean surface. In addition to these three bands, a forth band (R band) is found in the 2 ML of Pb coverage. The R band continues to appear even when the surface superstructure changed. The position of the R band does not depend on Pb coverage. These results indicate that the R band derives from Ge subsurface states known as surface resonance states. Furthermore, the effective mass of G3 is significantly reduced when this forth ban"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6832","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":"2026-05-18T02:42:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ga4AvnWBMBcSqhRCxiViBcY0D84DFl7ky+ZRk+Ds4YQMdtvQLExDb7veoeDSP37HsLVnku0F+RUAv669DlnfAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T13:26:20.417759Z"},"content_sha256":"9ab76d98095a486b490e047f4f1e7b1afd758bf557a922f012ff9075e7823a16","schema_version":"1.0","event_id":"sha256:9ab76d98095a486b490e047f4f1e7b1afd758bf557a922f012ff9075e7823a16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/33FFIGUCCBAJTRLCWBSM3Z5KJD/bundle.json","state_url":"https://pith.science/pith/33FFIGUCCBAJTRLCWBSM3Z5KJD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/33FFIGUCCBAJTRLCWBSM3Z5KJD/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":"2026-05-19T13:26:20Z","links":{"resolver":"https://pith.science/pith/33FFIGUCCBAJTRLCWBSM3Z5KJD","bundle":"https://pith.science/pith/33FFIGUCCBAJTRLCWBSM3Z5KJD/bundle.json","state":"https://pith.science/pith/33FFIGUCCBAJTRLCWBSM3Z5KJD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/33FFIGUCCBAJTRLCWBSM3Z5KJD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:33FFIGUCCBAJTRLCWBSM3Z5KJD","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":"d8f0cd1a0aba5a03551cda11465691447e7227080a14e699bd0f7a7a4adc455f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-24T05:26:20Z","title_canon_sha256":"2e64501f63d6f39ac4512511852d232cbfcaefb852aecb3c74e06cdf665cef52"},"schema_version":"1.0","source":{"id":"1409.6832","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6832","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6832v1","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6832","created_at":"2026-05-18T02:42:00Z"},{"alias_kind":"pith_short_12","alias_value":"33FFIGUCCBAJ","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"33FFIGUCCBAJTRLC","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"33FFIGUC","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:9ab76d98095a486b490e047f4f1e7b1afd758bf557a922f012ff9075e7823a16","target":"graph","created_at":"2026-05-18T02:42:00Z","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 investigate the valence band structure of Pb on Ge(001) by Angle-Resolved Photoelectron Spectroscopy. Three Ge bands, G1, G2, and G3, were observed on Ge(001) 2x1 clean surface. In addition to these three bands, a forth band (R band) is found in the 2 ML of Pb coverage. The R band continues to appear even when the surface superstructure changed. The position of the R band does not depend on Pb coverage. These results indicate that the R band derives from Ge subsurface states known as surface resonance states. Furthermore, the effective mass of G3 is significantly reduced when this forth ban","authors_text":"Haruka Kumeda, Hiroshi Daimon, Kazuki Kokui, Kousuke Kitagawa, Sakura N. Takeda, Tomohiro Sakata","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-24T05:26:20Z","title":"Interband interaction between Ge states and surface resonance band of Pb on Ge(001)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6832","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":"sha256:1df662979a3a354367b2fccf45cc82812abd1e766fcb15db2d8f592586ba654c","target":"record","created_at":"2026-05-18T02:42:00Z","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":"d8f0cd1a0aba5a03551cda11465691447e7227080a14e699bd0f7a7a4adc455f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-24T05:26:20Z","title_canon_sha256":"2e64501f63d6f39ac4512511852d232cbfcaefb852aecb3c74e06cdf665cef52"},"schema_version":"1.0","source":{"id":"1409.6832","kind":"arxiv","version":1}},"canonical_sha256":"deca541a82104099c562b064cde7aa48fe55dbb19ddd69d81d2cc4a473e87c79","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"deca541a82104099c562b064cde7aa48fe55dbb19ddd69d81d2cc4a473e87c79","first_computed_at":"2026-05-18T02:42:00.343514Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:42:00.343514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"y5D41A7SRfhVqjeMF0/HIPfMMV9mvzYKvQtCmDXMybIuLjc88c2E0TRCnA+RowK/L/jzF4AKZ/jzntC/pasqAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:42:00.344049Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.6832","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1df662979a3a354367b2fccf45cc82812abd1e766fcb15db2d8f592586ba654c","sha256:9ab76d98095a486b490e047f4f1e7b1afd758bf557a922f012ff9075e7823a16"],"state_sha256":"47c0d8cffeea10ea3da3799fdee3d9aacc46020608b70658beb46edf450f054b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L62Iy5D5RIFATQHObY+6uAoTKSA2Qk/MohmIyT9UzWKIhncT4Md+PIBWuNKm8rbxiBcu6v60bvyk7ZvPOmm3Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T13:26:20.419589Z","bundle_sha256":"e9599eaf191733fd6bd23965533386bad014852a3651adc974966369430f0cc2"}}