{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:BDWW5GFN53R3QZM4ESA7AOB7IE","short_pith_number":"pith:BDWW5GFN","canonical_record":{"source":{"id":"1710.00989","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-03T05:24:08Z","cross_cats_sorted":[],"title_canon_sha256":"1f5453c42227937bdd1f3af9da9dc6f52a56c9297b4254687ae8ab1d3e1da97f","abstract_canon_sha256":"46732d5dd9c65fc167190be0a6cb14508c61ef92559cf14ff3f455aafcdfd16a"},"schema_version":"1.0"},"canonical_sha256":"08ed6e98adeee3b8659c2481f0383f41375dc10b7aeae264ed5dcbb47f3d48ee","source":{"kind":"arxiv","id":"1710.00989","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.00989","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"arxiv_version","alias_value":"1710.00989v2","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.00989","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"pith_short_12","alias_value":"BDWW5GFN53R3","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BDWW5GFN53R3QZM4","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BDWW5GFN","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:BDWW5GFN53R3QZM4ESA7AOB7IE","target":"record","payload":{"canonical_record":{"source":{"id":"1710.00989","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-03T05:24:08Z","cross_cats_sorted":[],"title_canon_sha256":"1f5453c42227937bdd1f3af9da9dc6f52a56c9297b4254687ae8ab1d3e1da97f","abstract_canon_sha256":"46732d5dd9c65fc167190be0a6cb14508c61ef92559cf14ff3f455aafcdfd16a"},"schema_version":"1.0"},"canonical_sha256":"08ed6e98adeee3b8659c2481f0383f41375dc10b7aeae264ed5dcbb47f3d48ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:00.160027Z","signature_b64":"rjaHukmy30T/IGNAYuahYXe7Rztj8yEws69UN3hMGKy136MNJYZc4UEf6/m+J8n0OlBhBbHB+ML7KAYrvwFZDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"08ed6e98adeee3b8659c2481f0383f41375dc10b7aeae264ed5dcbb47f3d48ee","last_reissued_at":"2026-05-18T00:01:00.159458Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:00.159458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.00989","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":"2026-05-18T00:01:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bCOFCDm8OWMyJYUXdq50X+kJezD5a2s/8Ytwg0BBxrG9L66dx/yEKGUiC4Bt5Vb4WGGRFBXeRpHkcJffj0JeAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:42:57.095781Z"},"content_sha256":"e3bfec5193d43ed515b40081449045f1f9faf9fcd777b07feecf46d1733b5e4e","schema_version":"1.0","event_id":"sha256:e3bfec5193d43ed515b40081449045f1f9faf9fcd777b07feecf46d1733b5e4e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:BDWW5GFN53R3QZM4ESA7AOB7IE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The role of momentum-dark excitons in the elementary optical response of bilayer WSe$_{2}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Alexander H\\\"ogele, Andre Neumann, Ermin Malic, Feng Wang, Gunnar Bergh\\\"auser, Jessica Lindlau, Jonghwan Kim, L\\'eo Colombier, Malte Selig","submitted_at":"2017-10-03T05:24:08Z","abstract_excerpt":"Monolayer (ML) transition metal dichalcogenides (TMDs) undergo substantial changes in the single-particle band structure and excitonic optical response upon the addition of just one layer. As opposed to the single-layer limit, the bandgap of bilayer (BL) TMD semiconductors is indirect which results in reduced photoluminescence with richly structured spectra that have eluded a detailed understanding to date. Here, we provide a closed interpretation of the elementary optical responses of BL WSe$_2$ as a representative material for the wider class of TMD semiconductors. By combining theoretical c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.00989","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":"2026-05-18T00:01:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Snq/9brJEnVSbZ82zuYW8SgwvmlOeE5bjKWWDNrUaaslrt8TNzeD8Oi6890mDYZ5NEBCjEBs+WdAZMG2NkyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:42:57.096507Z"},"content_sha256":"b058ac733445129d0eed870099ae3155787db5ab42212e76bab277decdfcfb1e","schema_version":"1.0","event_id":"sha256:b058ac733445129d0eed870099ae3155787db5ab42212e76bab277decdfcfb1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BDWW5GFN53R3QZM4ESA7AOB7IE/bundle.json","state_url":"https://pith.science/pith/BDWW5GFN53R3QZM4ESA7AOB7IE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BDWW5GFN53R3QZM4ESA7AOB7IE/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":"2026-05-26T09:42:57Z","links":{"resolver":"https://pith.science/pith/BDWW5GFN53R3QZM4ESA7AOB7IE","bundle":"https://pith.science/pith/BDWW5GFN53R3QZM4ESA7AOB7IE/bundle.json","state":"https://pith.science/pith/BDWW5GFN53R3QZM4ESA7AOB7IE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BDWW5GFN53R3QZM4ESA7AOB7IE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BDWW5GFN53R3QZM4ESA7AOB7IE","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":"46732d5dd9c65fc167190be0a6cb14508c61ef92559cf14ff3f455aafcdfd16a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-03T05:24:08Z","title_canon_sha256":"1f5453c42227937bdd1f3af9da9dc6f52a56c9297b4254687ae8ab1d3e1da97f"},"schema_version":"1.0","source":{"id":"1710.00989","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.00989","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"arxiv_version","alias_value":"1710.00989v2","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.00989","created_at":"2026-05-18T00:01:00Z"},{"alias_kind":"pith_short_12","alias_value":"BDWW5GFN53R3","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BDWW5GFN53R3QZM4","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BDWW5GFN","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:b058ac733445129d0eed870099ae3155787db5ab42212e76bab277decdfcfb1e","target":"graph","created_at":"2026-05-18T00:01:00Z","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":"Monolayer (ML) transition metal dichalcogenides (TMDs) undergo substantial changes in the single-particle band structure and excitonic optical response upon the addition of just one layer. As opposed to the single-layer limit, the bandgap of bilayer (BL) TMD semiconductors is indirect which results in reduced photoluminescence with richly structured spectra that have eluded a detailed understanding to date. Here, we provide a closed interpretation of the elementary optical responses of BL WSe$_2$ as a representative material for the wider class of TMD semiconductors. By combining theoretical c","authors_text":"Alexander H\\\"ogele, Andre Neumann, Ermin Malic, Feng Wang, Gunnar Bergh\\\"auser, Jessica Lindlau, Jonghwan Kim, L\\'eo Colombier, Malte Selig","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-03T05:24:08Z","title":"The role of momentum-dark excitons in the elementary optical response of bilayer WSe$_{2}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.00989","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:e3bfec5193d43ed515b40081449045f1f9faf9fcd777b07feecf46d1733b5e4e","target":"record","created_at":"2026-05-18T00:01:00Z","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":"46732d5dd9c65fc167190be0a6cb14508c61ef92559cf14ff3f455aafcdfd16a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-10-03T05:24:08Z","title_canon_sha256":"1f5453c42227937bdd1f3af9da9dc6f52a56c9297b4254687ae8ab1d3e1da97f"},"schema_version":"1.0","source":{"id":"1710.00989","kind":"arxiv","version":2}},"canonical_sha256":"08ed6e98adeee3b8659c2481f0383f41375dc10b7aeae264ed5dcbb47f3d48ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"08ed6e98adeee3b8659c2481f0383f41375dc10b7aeae264ed5dcbb47f3d48ee","first_computed_at":"2026-05-18T00:01:00.159458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:00.159458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rjaHukmy30T/IGNAYuahYXe7Rztj8yEws69UN3hMGKy136MNJYZc4UEf6/m+J8n0OlBhBbHB+ML7KAYrvwFZDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:00.160027Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.00989","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3bfec5193d43ed515b40081449045f1f9faf9fcd777b07feecf46d1733b5e4e","sha256:b058ac733445129d0eed870099ae3155787db5ab42212e76bab277decdfcfb1e"],"state_sha256":"659c843601907ca16ce027cdde41cde693b3986edbe99408455dd95be0a0a3d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tn/k7tZsUK60RPYJKKcbCC6slRQjikpSNlVn9alaeUA5+eh3G2wjMT/9N8N+CEgk2UZAosL5ZPcSjaoD43cOBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:42:57.100577Z","bundle_sha256":"f84c6fbe62e755c0e0674d0b6dc50eb408ff6c0c8e4d605d15c4a2e38bbde12c"}}