{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:CQD4QLD76DBD7HL4CBG7T4X6GX","short_pith_number":"pith:CQD4QLD7","canonical_record":{"source":{"id":"2012.15114","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-12-30T11:21:45Z","cross_cats_sorted":[],"title_canon_sha256":"998f2a5093eac30370c3eb5a28cbd6a3f7665a9d24ad60c45c915dade867747a","abstract_canon_sha256":"8ea7351770cc753ff12cba11a8c54294b1b2147937141f722d5ae54487fb11ed"},"schema_version":"1.0"},"canonical_sha256":"1407c82c7ff0c23f9d7c104df9f2fe35ef19b7946edb22ded7ea41867e3bdd3d","source":{"kind":"arxiv","id":"2012.15114","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.15114","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"2012.15114v1","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.15114","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"CQD4QLD76DBD","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"pith_short_16","alias_value":"CQD4QLD76DBD7HL4","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"pith_short_8","alias_value":"CQD4QLD7","created_at":"2026-07-05T03:45:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:CQD4QLD76DBD7HL4CBG7T4X6GX","target":"record","payload":{"canonical_record":{"source":{"id":"2012.15114","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-12-30T11:21:45Z","cross_cats_sorted":[],"title_canon_sha256":"998f2a5093eac30370c3eb5a28cbd6a3f7665a9d24ad60c45c915dade867747a","abstract_canon_sha256":"8ea7351770cc753ff12cba11a8c54294b1b2147937141f722d5ae54487fb11ed"},"schema_version":"1.0"},"canonical_sha256":"1407c82c7ff0c23f9d7c104df9f2fe35ef19b7946edb22ded7ea41867e3bdd3d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:45:25.404993Z","signature_b64":"MhI5M7HwXB4P/ptMm+xTkyrQ1SJoz74atXBEg5RoNLKHz1e1Vm/2i0Ytuok+rZpZd3QDV5moUT3Cq0gjWlgmBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1407c82c7ff0c23f9d7c104df9f2fe35ef19b7946edb22ded7ea41867e3bdd3d","last_reissued_at":"2026-07-05T03:45:25.404501Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:45:25.404501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.15114","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":"2026-07-05T03:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fhMyWGO/c3WQKa4xB2pyRH5t91OpPozLGMONdJ5aKHT5o2Mx8RZNzAZ+LnLCMYvPHoNCr0t4pi7qRcl9dvNxCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T11:44:00.061157Z"},"content_sha256":"83fde1fada2c4d42497cb28b96ac9993d8c547b6c81a47cb6e6ea0c76202579d","schema_version":"1.0","event_id":"sha256:83fde1fada2c4d42497cb28b96ac9993d8c547b6c81a47cb6e6ea0c76202579d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:CQD4QLD76DBD7HL4CBG7T4X6GX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Boosting quantum yields in 2D semiconductors via proximal metal plates","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Alexey Chernikov, Andrey Chaves, Anshuman Kumar, Jeongyong Kim, Johnathas D'arf Severo Forte, Joon I. Jang, Kenji Watanabe, Shrawan Roy, Takashi Taniguchi, Tony Low, Yongjun Lee","submitted_at":"2020-12-30T11:21:45Z","abstract_excerpt":"Monolayer transition metal dichalcogenides (1L-TMDs) have tremendous potential as atomically thin, direct bandgap semiconductors that can be used as convenient building blocks for quantum photonic devices. However, the short exciton lifetime due to the defect traps and the strong exciton-exciton interaction in TMDs has significantly limited the efficiency of exciton emission from this class of materials. Here, we show that exciton-exciton dipolar field interaction in 1L-WS2 can be effectively screened using an ultra-flat Au film substrate separated by multilayers of hexagonal boron nitride. Un"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.15114","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/2012.15114/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":"2026-07-05T03:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UqIKxgWB7DpB3kd/UPhM+pT5t60cmFR5AIRr5G7a00V9HEwnEopLHfyLO29BWLln10ziiACd/4yOb7tJ5XPkBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T11:44:00.062090Z"},"content_sha256":"f649ab0618eb54f06f038ca3342550a6ce15f4a2b6b1b4f3e54a87c20c4c4b36","schema_version":"1.0","event_id":"sha256:f649ab0618eb54f06f038ca3342550a6ce15f4a2b6b1b4f3e54a87c20c4c4b36"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CQD4QLD76DBD7HL4CBG7T4X6GX/bundle.json","state_url":"https://pith.science/pith/CQD4QLD76DBD7HL4CBG7T4X6GX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CQD4QLD76DBD7HL4CBG7T4X6GX/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":"2026-08-06T11:44:00Z","links":{"resolver":"https://pith.science/pith/CQD4QLD76DBD7HL4CBG7T4X6GX","bundle":"https://pith.science/pith/CQD4QLD76DBD7HL4CBG7T4X6GX/bundle.json","state":"https://pith.science/pith/CQD4QLD76DBD7HL4CBG7T4X6GX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CQD4QLD76DBD7HL4CBG7T4X6GX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:CQD4QLD76DBD7HL4CBG7T4X6GX","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":"8ea7351770cc753ff12cba11a8c54294b1b2147937141f722d5ae54487fb11ed","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-12-30T11:21:45Z","title_canon_sha256":"998f2a5093eac30370c3eb5a28cbd6a3f7665a9d24ad60c45c915dade867747a"},"schema_version":"1.0","source":{"id":"2012.15114","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.15114","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"2012.15114v1","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.15114","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"CQD4QLD76DBD","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"pith_short_16","alias_value":"CQD4QLD76DBD7HL4","created_at":"2026-07-05T03:45:25Z"},{"alias_kind":"pith_short_8","alias_value":"CQD4QLD7","created_at":"2026-07-05T03:45:25Z"}],"graph_snapshots":[{"event_id":"sha256:f649ab0618eb54f06f038ca3342550a6ce15f4a2b6b1b4f3e54a87c20c4c4b36","target":"graph","created_at":"2026-07-05T03:45:25Z","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/2012.15114/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Monolayer transition metal dichalcogenides (1L-TMDs) have tremendous potential as atomically thin, direct bandgap semiconductors that can be used as convenient building blocks for quantum photonic devices. However, the short exciton lifetime due to the defect traps and the strong exciton-exciton interaction in TMDs has significantly limited the efficiency of exciton emission from this class of materials. Here, we show that exciton-exciton dipolar field interaction in 1L-WS2 can be effectively screened using an ultra-flat Au film substrate separated by multilayers of hexagonal boron nitride. Un","authors_text":"Alexey Chernikov, Andrey Chaves, Anshuman Kumar, Jeongyong Kim, Johnathas D'arf Severo Forte, Joon I. Jang, Kenji Watanabe, Shrawan Roy, Takashi Taniguchi, Tony Low, Yongjun Lee","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-12-30T11:21:45Z","title":"Boosting quantum yields in 2D semiconductors via proximal metal plates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.15114","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":"sha256:83fde1fada2c4d42497cb28b96ac9993d8c547b6c81a47cb6e6ea0c76202579d","target":"record","created_at":"2026-07-05T03:45:25Z","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":"8ea7351770cc753ff12cba11a8c54294b1b2147937141f722d5ae54487fb11ed","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2020-12-30T11:21:45Z","title_canon_sha256":"998f2a5093eac30370c3eb5a28cbd6a3f7665a9d24ad60c45c915dade867747a"},"schema_version":"1.0","source":{"id":"2012.15114","kind":"arxiv","version":1}},"canonical_sha256":"1407c82c7ff0c23f9d7c104df9f2fe35ef19b7946edb22ded7ea41867e3bdd3d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1407c82c7ff0c23f9d7c104df9f2fe35ef19b7946edb22ded7ea41867e3bdd3d","first_computed_at":"2026-07-05T03:45:25.404501Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:45:25.404501Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MhI5M7HwXB4P/ptMm+xTkyrQ1SJoz74atXBEg5RoNLKHz1e1Vm/2i0Ytuok+rZpZd3QDV5moUT3Cq0gjWlgmBg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:45:25.404993Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.15114","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:83fde1fada2c4d42497cb28b96ac9993d8c547b6c81a47cb6e6ea0c76202579d","sha256:f649ab0618eb54f06f038ca3342550a6ce15f4a2b6b1b4f3e54a87c20c4c4b36"],"state_sha256":"6e9fa77b965e4684693a4d0098aec67aa6ae925c195cd1940864b08063dfadf9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tVTUv3vvWq1XOjPKobxz6/P7FRV1o08hGtnKzzSB3cMAbNIlsqvE/KL7v0435i1bDKlePSmnL2Mac3nv3o1vAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T11:44:00.068479Z","bundle_sha256":"b3f348b0f54050f6d80d2847bc5fc5daa8465d057e5a4d1339cc3984c26b9f21"}}