{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:46UUKL5DS7JI3GYTJ6RLVKZUFC","short_pith_number":"pith:46UUKL5D","canonical_record":{"source":{"id":"1009.5658","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-09-28T19:13:02Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"e261747e4ce174f9b68bb385159cd70576e78d7d79874c282b32b6ff9093322e","abstract_canon_sha256":"5cb80d636ac4ec301a0b08d7e364f6bea382978ad8e690f9964813973b2c505e"},"schema_version":"1.0"},"canonical_sha256":"e7a9452fa397d28d9b134fa2baab34288eba40ed1f916b4dda7020b6b7da8197","source":{"kind":"arxiv","id":"1009.5658","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5658","created_at":"2026-05-18T02:05:15Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5658v1","created_at":"2026-05-18T02:05:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5658","created_at":"2026-05-18T02:05:15Z"},{"alias_kind":"pith_short_12","alias_value":"46UUKL5DS7JI","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"46UUKL5DS7JI3GYT","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"46UUKL5D","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:46UUKL5DS7JI3GYTJ6RLVKZUFC","target":"record","payload":{"canonical_record":{"source":{"id":"1009.5658","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-09-28T19:13:02Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"e261747e4ce174f9b68bb385159cd70576e78d7d79874c282b32b6ff9093322e","abstract_canon_sha256":"5cb80d636ac4ec301a0b08d7e364f6bea382978ad8e690f9964813973b2c505e"},"schema_version":"1.0"},"canonical_sha256":"e7a9452fa397d28d9b134fa2baab34288eba40ed1f916b4dda7020b6b7da8197","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:15.987626Z","signature_b64":"q6QXYtDkh4plFYHZrodvhr0/9f9ynSeaQeWKjFVmj7pHvUw4zvWIiDGMQBh0uuNT0DHbFqAksvausTBz5GetCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7a9452fa397d28d9b134fa2baab34288eba40ed1f916b4dda7020b6b7da8197","last_reissued_at":"2026-05-18T02:05:15.986979Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:15.986979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.5658","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":"2026-05-18T02:05:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qqHxlRtWfKFxT4ZW+h6Vz6fa4fTY6e24h0RV9VC2lHpVxNB4XCY80JFAkm3i5OdetRzIdPSjOMsyjqTFkUD3Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:12:17.544053Z"},"content_sha256":"6ea2ec977e9f2b86f47b7f98cd1f903543216e967b8444f0b366c34f397b3a35","schema_version":"1.0","event_id":"sha256:6ea2ec977e9f2b86f47b7f98cd1f903543216e967b8444f0b366c34f397b3a35"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:46UUKL5DS7JI3GYTJ6RLVKZUFC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Graphene quantum dots embedded in hexagonal boron nitride sheets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Junwen Li, Vivek B. Shenoy","submitted_at":"2010-09-28T19:13:02Z","abstract_excerpt":"We have carried out first-principles calculations on electronic properties of graphene quantum dots embedded in hexagonal boron nitride monolayer sheets. The calculations with density functional theory show that the band gaps of quantum dots are determined by the quantum confinement effects and the hybridization of {\\pi} orbitals from B, N and C atoms. The energy states near the Fermi level are found to be strongly localized within and in the vicinity of the quantum dots."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5658","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":"2026-05-18T02:05:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pu/oSD3EKhizfhxMUWFYUeKi5XCr3p1MQ7LfmIoSwTcrQxqFl8cusZvHhR3T3tPN1reYqlhC+3OjO7QSRzZjCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:12:17.544700Z"},"content_sha256":"de78f2c35817c586ab7ae1c5b991181e2346c80a7547017ddcb97cf6e5b57984","schema_version":"1.0","event_id":"sha256:de78f2c35817c586ab7ae1c5b991181e2346c80a7547017ddcb97cf6e5b57984"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/46UUKL5DS7JI3GYTJ6RLVKZUFC/bundle.json","state_url":"https://pith.science/pith/46UUKL5DS7JI3GYTJ6RLVKZUFC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/46UUKL5DS7JI3GYTJ6RLVKZUFC/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":"2026-05-27T08:12:17Z","links":{"resolver":"https://pith.science/pith/46UUKL5DS7JI3GYTJ6RLVKZUFC","bundle":"https://pith.science/pith/46UUKL5DS7JI3GYTJ6RLVKZUFC/bundle.json","state":"https://pith.science/pith/46UUKL5DS7JI3GYTJ6RLVKZUFC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/46UUKL5DS7JI3GYTJ6RLVKZUFC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:46UUKL5DS7JI3GYTJ6RLVKZUFC","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":"5cb80d636ac4ec301a0b08d7e364f6bea382978ad8e690f9964813973b2c505e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-09-28T19:13:02Z","title_canon_sha256":"e261747e4ce174f9b68bb385159cd70576e78d7d79874c282b32b6ff9093322e"},"schema_version":"1.0","source":{"id":"1009.5658","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5658","created_at":"2026-05-18T02:05:15Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5658v1","created_at":"2026-05-18T02:05:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5658","created_at":"2026-05-18T02:05:15Z"},{"alias_kind":"pith_short_12","alias_value":"46UUKL5DS7JI","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"46UUKL5DS7JI3GYT","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"46UUKL5D","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:de78f2c35817c586ab7ae1c5b991181e2346c80a7547017ddcb97cf6e5b57984","target":"graph","created_at":"2026-05-18T02:05:15Z","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 have carried out first-principles calculations on electronic properties of graphene quantum dots embedded in hexagonal boron nitride monolayer sheets. The calculations with density functional theory show that the band gaps of quantum dots are determined by the quantum confinement effects and the hybridization of {\\pi} orbitals from B, N and C atoms. The energy states near the Fermi level are found to be strongly localized within and in the vicinity of the quantum dots.","authors_text":"Junwen Li, Vivek B. Shenoy","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-09-28T19:13:02Z","title":"Graphene quantum dots embedded in hexagonal boron nitride sheets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5658","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":"sha256:6ea2ec977e9f2b86f47b7f98cd1f903543216e967b8444f0b366c34f397b3a35","target":"record","created_at":"2026-05-18T02:05:15Z","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":"5cb80d636ac4ec301a0b08d7e364f6bea382978ad8e690f9964813973b2c505e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-09-28T19:13:02Z","title_canon_sha256":"e261747e4ce174f9b68bb385159cd70576e78d7d79874c282b32b6ff9093322e"},"schema_version":"1.0","source":{"id":"1009.5658","kind":"arxiv","version":1}},"canonical_sha256":"e7a9452fa397d28d9b134fa2baab34288eba40ed1f916b4dda7020b6b7da8197","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7a9452fa397d28d9b134fa2baab34288eba40ed1f916b4dda7020b6b7da8197","first_computed_at":"2026-05-18T02:05:15.986979Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:15.986979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q6QXYtDkh4plFYHZrodvhr0/9f9ynSeaQeWKjFVmj7pHvUw4zvWIiDGMQBh0uuNT0DHbFqAksvausTBz5GetCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:15.987626Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.5658","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ea2ec977e9f2b86f47b7f98cd1f903543216e967b8444f0b366c34f397b3a35","sha256:de78f2c35817c586ab7ae1c5b991181e2346c80a7547017ddcb97cf6e5b57984"],"state_sha256":"ba38e51a55da3921d4608dbad3e87a4704166e5d9cb2bdb69c581290180c9853"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y/YdnENfGEvBDY452UYUxEP7C4HHZ/mp6tb3dv2X6tHe4d/Z7yTVwyo9uxF6gS5W9GOGebpTJSB9uYlOYKLOAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:12:17.547747Z","bundle_sha256":"4e361aac242d8f1f86005e524d4c8128f876e9a8e4314ed4ea6e16d8d065e13e"}}