{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:PIAI42YG63MQ2SHBX66PW7HFEL","short_pith_number":"pith:PIAI42YG","canonical_record":{"source":{"id":"2109.08637","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-09-17T16:42:37Z","cross_cats_sorted":[],"title_canon_sha256":"487ff27e01f57a7fcac56a25a5f9c795bf4f314d472b8d9f6cce9f76542e06cb","abstract_canon_sha256":"68e54dce4c2f13031435a376de08c98d32b012359c819bc13ab32d13183eb698"},"schema_version":"1.0"},"canonical_sha256":"7a008e6b06f6d90d48e1bfbcfb7ce522f8af11fd78e977d980a96959cf267472","source":{"kind":"arxiv","id":"2109.08637","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.08637","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"arxiv_version","alias_value":"2109.08637v1","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.08637","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"pith_short_12","alias_value":"PIAI42YG63MQ","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"pith_short_16","alias_value":"PIAI42YG63MQ2SHB","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"pith_short_8","alias_value":"PIAI42YG","created_at":"2026-07-05T04:45:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:PIAI42YG63MQ2SHBX66PW7HFEL","target":"record","payload":{"canonical_record":{"source":{"id":"2109.08637","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-09-17T16:42:37Z","cross_cats_sorted":[],"title_canon_sha256":"487ff27e01f57a7fcac56a25a5f9c795bf4f314d472b8d9f6cce9f76542e06cb","abstract_canon_sha256":"68e54dce4c2f13031435a376de08c98d32b012359c819bc13ab32d13183eb698"},"schema_version":"1.0"},"canonical_sha256":"7a008e6b06f6d90d48e1bfbcfb7ce522f8af11fd78e977d980a96959cf267472","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:45:37.169718Z","signature_b64":"GIjPiLHm7blAKtQw12d5OuCfCQD1QtrAB6oZpgWNTZAtWTkRqOW3XMNl6f8xisxHNgD08YExnNH3yR0xOEC9CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a008e6b06f6d90d48e1bfbcfb7ce522f8af11fd78e977d980a96959cf267472","last_reissued_at":"2026-07-05T04:45:37.169172Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:45:37.169172Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.08637","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":"2026-07-05T04:45:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Bz9FCqBtnZg3QZGKn0Oh9vDwye3qVQaeq/nMgH91XNzGgGCaTdijN4YVqCgVQ110fqVrCXzkl180+b0JhOreAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:55:29.832222Z"},"content_sha256":"9accc62df6e990f334907f115cab60529111c7436bc5bf91193ec53e55445c1e","schema_version":"1.0","event_id":"sha256:9accc62df6e990f334907f115cab60529111c7436bc5bf91193ec53e55445c1e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:PIAI42YG63MQ2SHBX66PW7HFEL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nuclear magnetic resonance of ion implanted $^8$Li in ZnO","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"C. D. Philip Levy, Derek Fujimoto, Edward Thoeng, Gerald D. Morris, Iain McKenzie, John O. Ticknor, Jonah R. Adelman, Kenji M. Kojima, Martin H. Dehn, Matthew R. Pearson, Monika Stachura, Naoki Ohashi, Ruohong Li, Ryan M. L. McFadden, Sarah R. Dunsiger, Victoria L. Karner, W. Andrew MacFarlane","submitted_at":"2021-09-17T16:42:37Z","abstract_excerpt":"We report on the stability and magnetic state of ion implanted $^8$Li in single crystals of the semiconductor ZnO using $\\beta$-detected nuclear magnetic resonance. At ultradilute concentrations, the spectra reveal distinct Li sites from 7.6 to 400 K. Ionized shallow donor interstitial Li is stable across the entire temperature range, confirming its ability to self-compensate the acceptor character of its (Zn) substitutional counterpart. Above 300 K, spin-lattice relaxation indicates the onset of correlated local motion of interacting defects, and the spectra show a site change transition from"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.08637","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/2109.08637/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":"2026-07-05T04:45:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1kUMI7E5O6tnnkT6IcO9nblgnVoraFqAjb1zhgdnTsHoKl38WkD78vefHzkzUHgbtd7F1egzh1SIrzmI8OvXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:55:29.832603Z"},"content_sha256":"256fb7df7e62a9ac8174fd0c06ff778e6a1e911509daf7471633abc148280150","schema_version":"1.0","event_id":"sha256:256fb7df7e62a9ac8174fd0c06ff778e6a1e911509daf7471633abc148280150"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PIAI42YG63MQ2SHBX66PW7HFEL/bundle.json","state_url":"https://pith.science/pith/PIAI42YG63MQ2SHBX66PW7HFEL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PIAI42YG63MQ2SHBX66PW7HFEL/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":"2026-08-13T18:55:29Z","links":{"resolver":"https://pith.science/pith/PIAI42YG63MQ2SHBX66PW7HFEL","bundle":"https://pith.science/pith/PIAI42YG63MQ2SHBX66PW7HFEL/bundle.json","state":"https://pith.science/pith/PIAI42YG63MQ2SHBX66PW7HFEL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PIAI42YG63MQ2SHBX66PW7HFEL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PIAI42YG63MQ2SHBX66PW7HFEL","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":"68e54dce4c2f13031435a376de08c98d32b012359c819bc13ab32d13183eb698","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-09-17T16:42:37Z","title_canon_sha256":"487ff27e01f57a7fcac56a25a5f9c795bf4f314d472b8d9f6cce9f76542e06cb"},"schema_version":"1.0","source":{"id":"2109.08637","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.08637","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"arxiv_version","alias_value":"2109.08637v1","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.08637","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"pith_short_12","alias_value":"PIAI42YG63MQ","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"pith_short_16","alias_value":"PIAI42YG63MQ2SHB","created_at":"2026-07-05T04:45:37Z"},{"alias_kind":"pith_short_8","alias_value":"PIAI42YG","created_at":"2026-07-05T04:45:37Z"}],"graph_snapshots":[{"event_id":"sha256:256fb7df7e62a9ac8174fd0c06ff778e6a1e911509daf7471633abc148280150","target":"graph","created_at":"2026-07-05T04:45:37Z","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/2109.08637/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report on the stability and magnetic state of ion implanted $^8$Li in single crystals of the semiconductor ZnO using $\\beta$-detected nuclear magnetic resonance. At ultradilute concentrations, the spectra reveal distinct Li sites from 7.6 to 400 K. Ionized shallow donor interstitial Li is stable across the entire temperature range, confirming its ability to self-compensate the acceptor character of its (Zn) substitutional counterpart. Above 300 K, spin-lattice relaxation indicates the onset of correlated local motion of interacting defects, and the spectra show a site change transition from","authors_text":"C. D. Philip Levy, Derek Fujimoto, Edward Thoeng, Gerald D. Morris, Iain McKenzie, John O. Ticknor, Jonah R. Adelman, Kenji M. Kojima, Martin H. Dehn, Matthew R. Pearson, Monika Stachura, Naoki Ohashi, Ruohong Li, Ryan M. L. McFadden, Sarah R. Dunsiger, Victoria L. Karner, W. Andrew MacFarlane","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-09-17T16:42:37Z","title":"Nuclear magnetic resonance of ion implanted $^8$Li in ZnO"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.08637","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":"sha256:9accc62df6e990f334907f115cab60529111c7436bc5bf91193ec53e55445c1e","target":"record","created_at":"2026-07-05T04:45:37Z","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":"68e54dce4c2f13031435a376de08c98d32b012359c819bc13ab32d13183eb698","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-09-17T16:42:37Z","title_canon_sha256":"487ff27e01f57a7fcac56a25a5f9c795bf4f314d472b8d9f6cce9f76542e06cb"},"schema_version":"1.0","source":{"id":"2109.08637","kind":"arxiv","version":1}},"canonical_sha256":"7a008e6b06f6d90d48e1bfbcfb7ce522f8af11fd78e977d980a96959cf267472","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a008e6b06f6d90d48e1bfbcfb7ce522f8af11fd78e977d980a96959cf267472","first_computed_at":"2026-07-05T04:45:37.169172Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:45:37.169172Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GIjPiLHm7blAKtQw12d5OuCfCQD1QtrAB6oZpgWNTZAtWTkRqOW3XMNl6f8xisxHNgD08YExnNH3yR0xOEC9CA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:45:37.169718Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.08637","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9accc62df6e990f334907f115cab60529111c7436bc5bf91193ec53e55445c1e","sha256:256fb7df7e62a9ac8174fd0c06ff778e6a1e911509daf7471633abc148280150"],"state_sha256":"ea8a6f5ed8de2f760548d7ef55370b1ec046e89fc27d19198507334bf9c7c546"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R/sgE+BHS7cHJFkGgPtCuV+F+4Qw0NOT0zX82CIEgkPrKmkijjK6KIVuz5g0XGp8deD2WJ6tceH0vLmipmhRCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T18:55:29.842276Z","bundle_sha256":"7111690ec825fad0ff61df9bedb653af8287bc39b9eb607fae946a663010c997"}}