{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:ATZI5YIKJWDBANFGSAH4NVZG2Q","short_pith_number":"pith:ATZI5YIK","canonical_record":{"source":{"id":"2008.02732","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-06T16:06:20Z","cross_cats_sorted":[],"title_canon_sha256":"bd7ec010cef4b7cf88c03be9df756a8d39c893d7ce400246ffbe5444f912353e","abstract_canon_sha256":"084a314b16de3d79b51f03526456c345d85bd79b4cb85757e026c1b6ecc5a4b7"},"schema_version":"1.0"},"canonical_sha256":"04f28ee10a4d861034a6900fc6d726d432e23e2e0540beee9eee7fa5b15cb65c","source":{"kind":"arxiv","id":"2008.02732","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.02732","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"arxiv_version","alias_value":"2008.02732v1","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.02732","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"pith_short_12","alias_value":"ATZI5YIKJWDB","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"pith_short_16","alias_value":"ATZI5YIKJWDBANFG","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"pith_short_8","alias_value":"ATZI5YIK","created_at":"2026-07-05T01:25:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:ATZI5YIKJWDBANFGSAH4NVZG2Q","target":"record","payload":{"canonical_record":{"source":{"id":"2008.02732","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-06T16:06:20Z","cross_cats_sorted":[],"title_canon_sha256":"bd7ec010cef4b7cf88c03be9df756a8d39c893d7ce400246ffbe5444f912353e","abstract_canon_sha256":"084a314b16de3d79b51f03526456c345d85bd79b4cb85757e026c1b6ecc5a4b7"},"schema_version":"1.0"},"canonical_sha256":"04f28ee10a4d861034a6900fc6d726d432e23e2e0540beee9eee7fa5b15cb65c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:25:19.023350Z","signature_b64":"PF1kLepUU0jpxqrcYa7vLYcvJc67JnGaHrghcOh2gg8ob5HZAqYrlVbCJC8+fyXCwJAGoAPmXY/0YJ6sEo3CAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04f28ee10a4d861034a6900fc6d726d432e23e2e0540beee9eee7fa5b15cb65c","last_reissued_at":"2026-07-05T01:25:19.022914Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:25:19.022914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.02732","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":"2026-07-05T01:25:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RJbwwmqVWJKIBekzGzc3nvBc6jstyqbPCvZ+WhNCEnFtAkEJljuE/2deCZIOY52c05U+tftDpWrkMG2hQ2M+DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T08:08:43.624951Z"},"content_sha256":"c0e1b306a0659ecc7b702109347c31776a941c95f40807b98fb22f5abfe9bfd4","schema_version":"1.0","event_id":"sha256:c0e1b306a0659ecc7b702109347c31776a941c95f40807b98fb22f5abfe9bfd4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:ATZI5YIKJWDBANFGSAH4NVZG2Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Radiative capture rates at deep defects from electronic structure calculations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Audrius Alkauskas, Chris G. Van de Walle, Cyrus E. Dreyer, John L. Lyons","submitted_at":"2020-08-06T16:06:20Z","abstract_excerpt":"We present a methodology to calculate radiative carrier capture coefficients at deep defects in semiconductors and insulators from first principles. Electronic structure and lattice relaxations are accurately described with hybrid density functional theory. Calculations of capture coefficients provide an additional validation of the accuracy of these functionals in dealing with localized defect states. We also discuss the validity of the Condon approximation, showing that even in the event of large lattice relaxations the approximation is accurate. We test the method on GaAs:$V_\\text{Ga}$-$\\te"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.02732","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/2008.02732/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":"2026-07-05T01:25:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zxQU+ny2McEKWLEBRPIoqCYSx8xgH5Tt6CkguYr3RQe6jGtwd1wtD6cY5WjxYaggWSA8iDWIqSIFBuUHCrTXAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T08:08:43.625440Z"},"content_sha256":"f450c2e2f3ce1624938c1d40ab6ab078a9c9dc5467a12688a90244896752c5d8","schema_version":"1.0","event_id":"sha256:f450c2e2f3ce1624938c1d40ab6ab078a9c9dc5467a12688a90244896752c5d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ATZI5YIKJWDBANFGSAH4NVZG2Q/bundle.json","state_url":"https://pith.science/pith/ATZI5YIKJWDBANFGSAH4NVZG2Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ATZI5YIKJWDBANFGSAH4NVZG2Q/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":"2026-08-01T08:08:43Z","links":{"resolver":"https://pith.science/pith/ATZI5YIKJWDBANFGSAH4NVZG2Q","bundle":"https://pith.science/pith/ATZI5YIKJWDBANFGSAH4NVZG2Q/bundle.json","state":"https://pith.science/pith/ATZI5YIKJWDBANFGSAH4NVZG2Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ATZI5YIKJWDBANFGSAH4NVZG2Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:ATZI5YIKJWDBANFGSAH4NVZG2Q","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":"084a314b16de3d79b51f03526456c345d85bd79b4cb85757e026c1b6ecc5a4b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-06T16:06:20Z","title_canon_sha256":"bd7ec010cef4b7cf88c03be9df756a8d39c893d7ce400246ffbe5444f912353e"},"schema_version":"1.0","source":{"id":"2008.02732","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.02732","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"arxiv_version","alias_value":"2008.02732v1","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.02732","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"pith_short_12","alias_value":"ATZI5YIKJWDB","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"pith_short_16","alias_value":"ATZI5YIKJWDBANFG","created_at":"2026-07-05T01:25:19Z"},{"alias_kind":"pith_short_8","alias_value":"ATZI5YIK","created_at":"2026-07-05T01:25:19Z"}],"graph_snapshots":[{"event_id":"sha256:f450c2e2f3ce1624938c1d40ab6ab078a9c9dc5467a12688a90244896752c5d8","target":"graph","created_at":"2026-07-05T01:25:19Z","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/2008.02732/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a methodology to calculate radiative carrier capture coefficients at deep defects in semiconductors and insulators from first principles. Electronic structure and lattice relaxations are accurately described with hybrid density functional theory. Calculations of capture coefficients provide an additional validation of the accuracy of these functionals in dealing with localized defect states. We also discuss the validity of the Condon approximation, showing that even in the event of large lattice relaxations the approximation is accurate. We test the method on GaAs:$V_\\text{Ga}$-$\\te","authors_text":"Audrius Alkauskas, Chris G. Van de Walle, Cyrus E. Dreyer, John L. Lyons","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-06T16:06:20Z","title":"Radiative capture rates at deep defects from electronic structure calculations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.02732","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:c0e1b306a0659ecc7b702109347c31776a941c95f40807b98fb22f5abfe9bfd4","target":"record","created_at":"2026-07-05T01:25:19Z","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":"084a314b16de3d79b51f03526456c345d85bd79b4cb85757e026c1b6ecc5a4b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-06T16:06:20Z","title_canon_sha256":"bd7ec010cef4b7cf88c03be9df756a8d39c893d7ce400246ffbe5444f912353e"},"schema_version":"1.0","source":{"id":"2008.02732","kind":"arxiv","version":1}},"canonical_sha256":"04f28ee10a4d861034a6900fc6d726d432e23e2e0540beee9eee7fa5b15cb65c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04f28ee10a4d861034a6900fc6d726d432e23e2e0540beee9eee7fa5b15cb65c","first_computed_at":"2026-07-05T01:25:19.022914Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:25:19.022914Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PF1kLepUU0jpxqrcYa7vLYcvJc67JnGaHrghcOh2gg8ob5HZAqYrlVbCJC8+fyXCwJAGoAPmXY/0YJ6sEo3CAw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:25:19.023350Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.02732","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0e1b306a0659ecc7b702109347c31776a941c95f40807b98fb22f5abfe9bfd4","sha256:f450c2e2f3ce1624938c1d40ab6ab078a9c9dc5467a12688a90244896752c5d8"],"state_sha256":"84302d972ed8781d2dad42a2d8c7184bb28162fdd79bb35f425122211c1f900f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OxQJ0Dt32I8HGu9cVdWgbiD23oK74RQoOkEthIIiQfa2ljnI7MdhZaHRvVluBXudQ+82X75qDxHQoLWJJQmMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T08:08:43.630854Z","bundle_sha256":"cd672e3bad39a7460b62e28a2e0913d73648bc50d7a2910fe20eecc3896951b1"}}