{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2U5YDNIMXDRQ6BP62ECLI5N7M3","short_pith_number":"pith:2U5YDNIM","canonical_record":{"source":{"id":"2404.09904","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-04-15T16:27:56Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"844ffca6e017e33a878e88afc3a91a1ec37d7c735b6cab77b8e0a02adc3a1898","abstract_canon_sha256":"792a590f8a9c0e83675c57922a9902fac3f8767973ebb42b48c8e74a2edd5225"},"schema_version":"1.0"},"canonical_sha256":"d53b81b50cb8e30f05fed104b475bf66f40469ea6446f77b9d7882404e6c3c22","source":{"kind":"arxiv","id":"2404.09904","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.09904","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"arxiv_version","alias_value":"2404.09904v1","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.09904","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"pith_short_12","alias_value":"2U5YDNIMXDRQ","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"pith_short_16","alias_value":"2U5YDNIMXDRQ6BP6","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"pith_short_8","alias_value":"2U5YDNIM","created_at":"2026-07-05T08:08:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2U5YDNIMXDRQ6BP62ECLI5N7M3","target":"record","payload":{"canonical_record":{"source":{"id":"2404.09904","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-04-15T16:27:56Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"844ffca6e017e33a878e88afc3a91a1ec37d7c735b6cab77b8e0a02adc3a1898","abstract_canon_sha256":"792a590f8a9c0e83675c57922a9902fac3f8767973ebb42b48c8e74a2edd5225"},"schema_version":"1.0"},"canonical_sha256":"d53b81b50cb8e30f05fed104b475bf66f40469ea6446f77b9d7882404e6c3c22","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:08:13.039223Z","signature_b64":"DcexhFFz8WzuCz0IyVoEZnmnRGxIl0MW+O5jcvZw1u31ujvT+mb8dEV34jnnaNSd997PWJM57IkSWywI+CPnCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d53b81b50cb8e30f05fed104b475bf66f40469ea6446f77b9d7882404e6c3c22","last_reissued_at":"2026-07-05T08:08:13.038845Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:08:13.038845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.09904","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":"2026-07-05T08:08:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NDEjgHafwJp96gj6Ji/yrFqncxDa60jutkzzJWw7eKsuO75ztexTLTmLAFsYSQpBqmcl10A6yZD4gr8QPp7SDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:55:23.856582Z"},"content_sha256":"7b9751a71a8d376ad0632cb73b2d804e491fdf09acb5b82c0904aa1c98381441","schema_version":"1.0","event_id":"sha256:7b9751a71a8d376ad0632cb73b2d804e491fdf09acb5b82c0904aa1c98381441"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2U5YDNIMXDRQ6BP62ECLI5N7M3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electrical control of valley polarized charged biexcitons in monolayer WS$_2$","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Calvin Pei Yu Wong, Chit Siong Lau, Ding Huang, Ivan Verzhbitskiy, Kuan Eng Johnson Goh, Rainer Lee, Sarthak Das, Zi-En Ooi","submitted_at":"2024-04-15T16:27:56Z","abstract_excerpt":"Excitons are key to the optoelectronic applications of van der Waals semiconductors with the potential for versatile on-demand tuning of properties. Yet, their electrical manipulation is complicated by their inherent charge neutrality and the additional loss channels induced by electrical doping. We demonstrate the dynamic control of valley polarization in charged biexciton (quinton) states of monolayer tungsten disulfide, achieving up to a sixfold increase in the degree of circular polarization under off-resonant excitation. In contrast to the weak direct tuning of excitons typically observed"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.09904","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/2404.09904/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":"2026-07-05T08:08:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eYrFJ9hwcyG75Pv++yox0kdiDyyiNeNQ/9WAfPENtuYnanpZw1nboipZifkKBzb6il2N/dJa81IxN73FzZaBCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:55:23.856983Z"},"content_sha256":"dc5b4c26d6b7e84bd4d7e7711e994d7661d6a2381617caa91c7c1707ced6ee93","schema_version":"1.0","event_id":"sha256:dc5b4c26d6b7e84bd4d7e7711e994d7661d6a2381617caa91c7c1707ced6ee93"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2U5YDNIMXDRQ6BP62ECLI5N7M3/bundle.json","state_url":"https://pith.science/pith/2U5YDNIMXDRQ6BP62ECLI5N7M3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2U5YDNIMXDRQ6BP62ECLI5N7M3/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":"2026-08-13T23:55:23Z","links":{"resolver":"https://pith.science/pith/2U5YDNIMXDRQ6BP62ECLI5N7M3","bundle":"https://pith.science/pith/2U5YDNIMXDRQ6BP62ECLI5N7M3/bundle.json","state":"https://pith.science/pith/2U5YDNIMXDRQ6BP62ECLI5N7M3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2U5YDNIMXDRQ6BP62ECLI5N7M3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2U5YDNIMXDRQ6BP62ECLI5N7M3","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":"792a590f8a9c0e83675c57922a9902fac3f8767973ebb42b48c8e74a2edd5225","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-04-15T16:27:56Z","title_canon_sha256":"844ffca6e017e33a878e88afc3a91a1ec37d7c735b6cab77b8e0a02adc3a1898"},"schema_version":"1.0","source":{"id":"2404.09904","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.09904","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"arxiv_version","alias_value":"2404.09904v1","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.09904","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"pith_short_12","alias_value":"2U5YDNIMXDRQ","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"pith_short_16","alias_value":"2U5YDNIMXDRQ6BP6","created_at":"2026-07-05T08:08:13Z"},{"alias_kind":"pith_short_8","alias_value":"2U5YDNIM","created_at":"2026-07-05T08:08:13Z"}],"graph_snapshots":[{"event_id":"sha256:dc5b4c26d6b7e84bd4d7e7711e994d7661d6a2381617caa91c7c1707ced6ee93","target":"graph","created_at":"2026-07-05T08:08:13Z","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/2404.09904/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Excitons are key to the optoelectronic applications of van der Waals semiconductors with the potential for versatile on-demand tuning of properties. Yet, their electrical manipulation is complicated by their inherent charge neutrality and the additional loss channels induced by electrical doping. We demonstrate the dynamic control of valley polarization in charged biexciton (quinton) states of monolayer tungsten disulfide, achieving up to a sixfold increase in the degree of circular polarization under off-resonant excitation. In contrast to the weak direct tuning of excitons typically observed","authors_text":"Calvin Pei Yu Wong, Chit Siong Lau, Ding Huang, Ivan Verzhbitskiy, Kuan Eng Johnson Goh, Rainer Lee, Sarthak Das, Zi-En Ooi","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-04-15T16:27:56Z","title":"Electrical control of valley polarized charged biexcitons in monolayer WS$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.09904","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":"sha256:7b9751a71a8d376ad0632cb73b2d804e491fdf09acb5b82c0904aa1c98381441","target":"record","created_at":"2026-07-05T08:08:13Z","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":"792a590f8a9c0e83675c57922a9902fac3f8767973ebb42b48c8e74a2edd5225","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-04-15T16:27:56Z","title_canon_sha256":"844ffca6e017e33a878e88afc3a91a1ec37d7c735b6cab77b8e0a02adc3a1898"},"schema_version":"1.0","source":{"id":"2404.09904","kind":"arxiv","version":1}},"canonical_sha256":"d53b81b50cb8e30f05fed104b475bf66f40469ea6446f77b9d7882404e6c3c22","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d53b81b50cb8e30f05fed104b475bf66f40469ea6446f77b9d7882404e6c3c22","first_computed_at":"2026-07-05T08:08:13.038845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:08:13.038845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DcexhFFz8WzuCz0IyVoEZnmnRGxIl0MW+O5jcvZw1u31ujvT+mb8dEV34jnnaNSd997PWJM57IkSWywI+CPnCw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:08:13.039223Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.09904","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7b9751a71a8d376ad0632cb73b2d804e491fdf09acb5b82c0904aa1c98381441","sha256:dc5b4c26d6b7e84bd4d7e7711e994d7661d6a2381617caa91c7c1707ced6ee93"],"state_sha256":"902071e86b867456944f5a40b95bf263c7aaca456752ffc03c8fa1e8a98c3bf0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yx38ZeNjGTbz18eYFYo+/RXLEtS9umMSV68LKl+SlvSXsCPB5+4TFfYIkQtFFAOAwiwLiiCaQytYd6lMBBRuDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T23:55:23.859760Z","bundle_sha256":"a5183ebc737e44995045b0622dc53ccbd4c6f1b890d22487e1edfc20810a4248"}}