{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:CWZVY2GOQDLT3A7AM5S7YT4QVH","short_pith_number":"pith:CWZVY2GO","canonical_record":{"source":{"id":"1512.02031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-12-07T13:26:50Z","cross_cats_sorted":["physics.optics","quant-ph"],"title_canon_sha256":"d8b7f1ee92834dfaa7cec9aad963860bb89a7eb57ea2ad979da563542c61e943","abstract_canon_sha256":"833b61af6d654e50d72539b826c58b9086444fec79a8297cbbbbaa439500f8b1"},"schema_version":"1.0"},"canonical_sha256":"15b35c68ce80d73d83e06765fc4f90a9f11b629328ca1a6289ac4c4e20cc635a","source":{"kind":"arxiv","id":"1512.02031","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.02031","created_at":"2026-05-18T01:25:09Z"},{"alias_kind":"arxiv_version","alias_value":"1512.02031v1","created_at":"2026-05-18T01:25:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.02031","created_at":"2026-05-18T01:25:09Z"},{"alias_kind":"pith_short_12","alias_value":"CWZVY2GOQDLT","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CWZVY2GOQDLT3A7A","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CWZVY2GO","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:CWZVY2GOQDLT3A7AM5S7YT4QVH","target":"record","payload":{"canonical_record":{"source":{"id":"1512.02031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-12-07T13:26:50Z","cross_cats_sorted":["physics.optics","quant-ph"],"title_canon_sha256":"d8b7f1ee92834dfaa7cec9aad963860bb89a7eb57ea2ad979da563542c61e943","abstract_canon_sha256":"833b61af6d654e50d72539b826c58b9086444fec79a8297cbbbbaa439500f8b1"},"schema_version":"1.0"},"canonical_sha256":"15b35c68ce80d73d83e06765fc4f90a9f11b629328ca1a6289ac4c4e20cc635a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:09.762170Z","signature_b64":"bvc0tlUf+v2KylSsGaMqV+l2nwllNpNZRO/i+0qFNJZb8rZJJ0P8h2lla+nll4+WNB/eZartcJk2ilIDT6h/Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15b35c68ce80d73d83e06765fc4f90a9f11b629328ca1a6289ac4c4e20cc635a","last_reissued_at":"2026-05-18T01:25:09.761575Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:09.761575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1512.02031","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":"2026-05-18T01:25:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ScHWPmjX8sllB846YcWx/2iBod5/S4lTHfglTFnvXir8bQ2Kq5FAqWdAelMwOoIRWvdor7EZ0kK1CADFIKlqDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:00:14.838417Z"},"content_sha256":"7a6e750157e6ee07f7e9e098aa5bbe9d28919d82e4b20cdb24897322d949f435","schema_version":"1.0","event_id":"sha256:7a6e750157e6ee07f7e9e098aa5bbe9d28919d82e4b20cdb24897322d949f435"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:CWZVY2GOQDLT3A7AM5S7YT4QVH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of coupling between zero- and two-dimensional semiconductor systems based on anomalous diamagnetic effects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics","quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Chenjiang Qian, David A. Williams, Feilong Song, Hassan Ali, Jing Tang, Kai Peng, Kuijuan Jin, Shiyao Wu, Shuo Cao, Sibai Sun, Weidong Sheng, Xiulai Xu, Yanhui Zhao, Yue Sun, Yunan Gao, Yuting Shao","submitted_at":"2015-12-07T13:26:50Z","abstract_excerpt":"We report the direct observation of coupling between a single self-assembled InAs quantum dot and a wetting layer, based on strong diamagnetic shifts of many-body exciton states using magneto-photoluminescence spectroscopy. An extremely large positive diamagnetic coefficient is observed when an electron in the wetting layer combines with a hole in the quantum dot; the coefficient is nearly one order of magnitude larger than that of the exciton states confined in the quantum dots. Recombination of electrons with holes in a quantum dot of the coupled system leads to an unusual negative diamagnet"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.02031","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":"2026-05-18T01:25:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ap+5FEOYb7WiIwEFi8mpSMxYOWeWFkgUyM7z4BiUd1fU9yPbnMLI78pmd4R+aqT203upGwMmdkrGIR2Rd9tzDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:00:14.839058Z"},"content_sha256":"731230b76cb6461002a3de269182fe7f5a32de67a80027b5f34f2a04bb9e00cd","schema_version":"1.0","event_id":"sha256:731230b76cb6461002a3de269182fe7f5a32de67a80027b5f34f2a04bb9e00cd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CWZVY2GOQDLT3A7AM5S7YT4QVH/bundle.json","state_url":"https://pith.science/pith/CWZVY2GOQDLT3A7AM5S7YT4QVH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CWZVY2GOQDLT3A7AM5S7YT4QVH/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":"2026-05-26T03:00:14Z","links":{"resolver":"https://pith.science/pith/CWZVY2GOQDLT3A7AM5S7YT4QVH","bundle":"https://pith.science/pith/CWZVY2GOQDLT3A7AM5S7YT4QVH/bundle.json","state":"https://pith.science/pith/CWZVY2GOQDLT3A7AM5S7YT4QVH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CWZVY2GOQDLT3A7AM5S7YT4QVH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CWZVY2GOQDLT3A7AM5S7YT4QVH","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":"833b61af6d654e50d72539b826c58b9086444fec79a8297cbbbbaa439500f8b1","cross_cats_sorted":["physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-12-07T13:26:50Z","title_canon_sha256":"d8b7f1ee92834dfaa7cec9aad963860bb89a7eb57ea2ad979da563542c61e943"},"schema_version":"1.0","source":{"id":"1512.02031","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1512.02031","created_at":"2026-05-18T01:25:09Z"},{"alias_kind":"arxiv_version","alias_value":"1512.02031v1","created_at":"2026-05-18T01:25:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.02031","created_at":"2026-05-18T01:25:09Z"},{"alias_kind":"pith_short_12","alias_value":"CWZVY2GOQDLT","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"CWZVY2GOQDLT3A7A","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"CWZVY2GO","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:731230b76cb6461002a3de269182fe7f5a32de67a80027b5f34f2a04bb9e00cd","target":"graph","created_at":"2026-05-18T01:25:09Z","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 report the direct observation of coupling between a single self-assembled InAs quantum dot and a wetting layer, based on strong diamagnetic shifts of many-body exciton states using magneto-photoluminescence spectroscopy. An extremely large positive diamagnetic coefficient is observed when an electron in the wetting layer combines with a hole in the quantum dot; the coefficient is nearly one order of magnitude larger than that of the exciton states confined in the quantum dots. Recombination of electrons with holes in a quantum dot of the coupled system leads to an unusual negative diamagnet","authors_text":"Chenjiang Qian, David A. Williams, Feilong Song, Hassan Ali, Jing Tang, Kai Peng, Kuijuan Jin, Shiyao Wu, Shuo Cao, Sibai Sun, Weidong Sheng, Xiulai Xu, Yanhui Zhao, Yue Sun, Yunan Gao, Yuting Shao","cross_cats":["physics.optics","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-12-07T13:26:50Z","title":"Observation of coupling between zero- and two-dimensional semiconductor systems based on anomalous diamagnetic effects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.02031","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":"sha256:7a6e750157e6ee07f7e9e098aa5bbe9d28919d82e4b20cdb24897322d949f435","target":"record","created_at":"2026-05-18T01:25:09Z","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":"833b61af6d654e50d72539b826c58b9086444fec79a8297cbbbbaa439500f8b1","cross_cats_sorted":["physics.optics","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-12-07T13:26:50Z","title_canon_sha256":"d8b7f1ee92834dfaa7cec9aad963860bb89a7eb57ea2ad979da563542c61e943"},"schema_version":"1.0","source":{"id":"1512.02031","kind":"arxiv","version":1}},"canonical_sha256":"15b35c68ce80d73d83e06765fc4f90a9f11b629328ca1a6289ac4c4e20cc635a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15b35c68ce80d73d83e06765fc4f90a9f11b629328ca1a6289ac4c4e20cc635a","first_computed_at":"2026-05-18T01:25:09.761575Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:09.761575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bvc0tlUf+v2KylSsGaMqV+l2nwllNpNZRO/i+0qFNJZb8rZJJ0P8h2lla+nll4+WNB/eZartcJk2ilIDT6h/Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:09.762170Z","signed_message":"canonical_sha256_bytes"},"source_id":"1512.02031","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a6e750157e6ee07f7e9e098aa5bbe9d28919d82e4b20cdb24897322d949f435","sha256:731230b76cb6461002a3de269182fe7f5a32de67a80027b5f34f2a04bb9e00cd"],"state_sha256":"49776680d20cac655316764df806f26bab457ad550a0adb017fcb82a1c8881f8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AS5uhCXL6TRpax4OI9AHgO4xv4vcTAoN94iNx83tY5YYM3E4y7DXdd1GB7wZJDcH5Xdh7JEPm++X8011AnwZAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:00:14.842401Z","bundle_sha256":"43db5d8d4cb8e4dfce6d25a1273c0c56ad05cd3014ab693d7dbfd041aa1a8a97"}}