{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BHOIE4H4IRANH7LYUNUUBNTJGM","short_pith_number":"pith:BHOIE4H4","canonical_record":{"source":{"id":"2503.19490","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-03-25T09:25:51Z","cross_cats_sorted":[],"title_canon_sha256":"8b529d4c5c6d192a81abbe776dc6640733d124385ae85fff2ae2879f0ed53503","abstract_canon_sha256":"72bb3ab4fd9588f907dd41f629d7e10e1bbb9fc0fad341ad391b1b0362288765"},"schema_version":"1.0"},"canonical_sha256":"09dc8270fc4440d3fd78a36940b669332f19731883c9eb878f819bcd09d8e77b","source":{"kind":"arxiv","id":"2503.19490","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.19490","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"arxiv_version","alias_value":"2503.19490v2","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.19490","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"pith_short_12","alias_value":"BHOIE4H4IRAN","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"pith_short_16","alias_value":"BHOIE4H4IRANH7LY","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"pith_short_8","alias_value":"BHOIE4H4","created_at":"2026-07-05T10:46:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BHOIE4H4IRANH7LYUNUUBNTJGM","target":"record","payload":{"canonical_record":{"source":{"id":"2503.19490","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-03-25T09:25:51Z","cross_cats_sorted":[],"title_canon_sha256":"8b529d4c5c6d192a81abbe776dc6640733d124385ae85fff2ae2879f0ed53503","abstract_canon_sha256":"72bb3ab4fd9588f907dd41f629d7e10e1bbb9fc0fad341ad391b1b0362288765"},"schema_version":"1.0"},"canonical_sha256":"09dc8270fc4440d3fd78a36940b669332f19731883c9eb878f819bcd09d8e77b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:46:41.800283Z","signature_b64":"IMGf8xFOcOenMrM/aaJGsxPWtHRYfP9pzxeXygIHUNEzftE0vUGRFakWjNHKhlOfajnkiBh1hG0n4xClQnnyAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"09dc8270fc4440d3fd78a36940b669332f19731883c9eb878f819bcd09d8e77b","last_reissued_at":"2026-07-05T10:46:41.799816Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:46:41.799816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.19490","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:46:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4UdGN6Kt1udFnygMyBU4pCT2v+DV/Ey9v5XSEbj6AqJ9NbHsitBUhPFtAwIt/7A5BIjw/8ApNZzOktfeA5jKCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T12:50:50.384501Z"},"content_sha256":"072c495f7e66c99d5dab94049325e3171bdaa15f7fd93d1c2a7506c39aca087e","schema_version":"1.0","event_id":"sha256:072c495f7e66c99d5dab94049325e3171bdaa15f7fd93d1c2a7506c39aca087e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BHOIE4H4IRANH7LYUNUUBNTJGM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Creation of Negatively Charged GeV and SnV centers in Nanodiamonds via Ion Implantation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alexander Kubanek, Emilio Corte, Richard Waltrich, Selene Sachero, Sviatoslav Ditalia Tchernij","submitted_at":"2025-03-25T09:25:51Z","abstract_excerpt":"Solid state quantum emitters, in particular group-IV vacancy centers in diamond, are at the forefront of research in quantum technologies due to their unique optical and spin properties. Reduction of the diamond host size to the nanoscale enables new opportunities in terms of integration and scalability. However, creating optically coherent quantum emitters in nanodiamonds remains a major challenge. Here, we present the fabrication of germanium- and tin- vacancy centers by means of ion implantation. We describe the fabrication process and present the optical properties of the created color cen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.19490","kind":"arxiv","version":2},"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/2503.19490/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":"2026-07-05T10:46:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qB9YC3u1958VYmbAWFedHSL3PwGExGZ63ZLeM+NWBYH+zn2vOppvm4BlxNdMEkW+eTlLN3S3+b9NBt3ojkRcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T12:50:50.385025Z"},"content_sha256":"58cd4fe3cc412998e0e69a1c0a65ddd1f5fb1f960fb1fe19249e72d033707a46","schema_version":"1.0","event_id":"sha256:58cd4fe3cc412998e0e69a1c0a65ddd1f5fb1f960fb1fe19249e72d033707a46"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BHOIE4H4IRANH7LYUNUUBNTJGM/bundle.json","state_url":"https://pith.science/pith/BHOIE4H4IRANH7LYUNUUBNTJGM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BHOIE4H4IRANH7LYUNUUBNTJGM/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":"2026-08-23T12:50:50Z","links":{"resolver":"https://pith.science/pith/BHOIE4H4IRANH7LYUNUUBNTJGM","bundle":"https://pith.science/pith/BHOIE4H4IRANH7LYUNUUBNTJGM/bundle.json","state":"https://pith.science/pith/BHOIE4H4IRANH7LYUNUUBNTJGM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BHOIE4H4IRANH7LYUNUUBNTJGM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BHOIE4H4IRANH7LYUNUUBNTJGM","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":"72bb3ab4fd9588f907dd41f629d7e10e1bbb9fc0fad341ad391b1b0362288765","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-03-25T09:25:51Z","title_canon_sha256":"8b529d4c5c6d192a81abbe776dc6640733d124385ae85fff2ae2879f0ed53503"},"schema_version":"1.0","source":{"id":"2503.19490","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.19490","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"arxiv_version","alias_value":"2503.19490v2","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.19490","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"pith_short_12","alias_value":"BHOIE4H4IRAN","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"pith_short_16","alias_value":"BHOIE4H4IRANH7LY","created_at":"2026-07-05T10:46:41Z"},{"alias_kind":"pith_short_8","alias_value":"BHOIE4H4","created_at":"2026-07-05T10:46:41Z"}],"graph_snapshots":[{"event_id":"sha256:58cd4fe3cc412998e0e69a1c0a65ddd1f5fb1f960fb1fe19249e72d033707a46","target":"graph","created_at":"2026-07-05T10:46:41Z","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/2503.19490/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Solid state quantum emitters, in particular group-IV vacancy centers in diamond, are at the forefront of research in quantum technologies due to their unique optical and spin properties. Reduction of the diamond host size to the nanoscale enables new opportunities in terms of integration and scalability. However, creating optically coherent quantum emitters in nanodiamonds remains a major challenge. Here, we present the fabrication of germanium- and tin- vacancy centers by means of ion implantation. We describe the fabrication process and present the optical properties of the created color cen","authors_text":"Alexander Kubanek, Emilio Corte, Richard Waltrich, Selene Sachero, Sviatoslav Ditalia Tchernij","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-03-25T09:25:51Z","title":"Creation of Negatively Charged GeV and SnV centers in Nanodiamonds via Ion Implantation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.19490","kind":"arxiv","version":2},"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":"sha256:072c495f7e66c99d5dab94049325e3171bdaa15f7fd93d1c2a7506c39aca087e","target":"record","created_at":"2026-07-05T10:46:41Z","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":"72bb3ab4fd9588f907dd41f629d7e10e1bbb9fc0fad341ad391b1b0362288765","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-03-25T09:25:51Z","title_canon_sha256":"8b529d4c5c6d192a81abbe776dc6640733d124385ae85fff2ae2879f0ed53503"},"schema_version":"1.0","source":{"id":"2503.19490","kind":"arxiv","version":2}},"canonical_sha256":"09dc8270fc4440d3fd78a36940b669332f19731883c9eb878f819bcd09d8e77b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"09dc8270fc4440d3fd78a36940b669332f19731883c9eb878f819bcd09d8e77b","first_computed_at":"2026-07-05T10:46:41.799816Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:46:41.799816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IMGf8xFOcOenMrM/aaJGsxPWtHRYfP9pzxeXygIHUNEzftE0vUGRFakWjNHKhlOfajnkiBh1hG0n4xClQnnyAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:46:41.800283Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.19490","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:072c495f7e66c99d5dab94049325e3171bdaa15f7fd93d1c2a7506c39aca087e","sha256:58cd4fe3cc412998e0e69a1c0a65ddd1f5fb1f960fb1fe19249e72d033707a46"],"state_sha256":"95d6be9bae7efb9d1a88cbc8f6eb69aafd35ec440ac8224d444cdc5e7cf768ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"khxMtqH/UwNXNzHt7m+PmGNmeDJ+3o2UDTHA4jjx6Gld6gC8n7K23wRHXy5L1dp2jzIbB+neouUKhjeGEIJDCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T12:50:50.388979Z","bundle_sha256":"27861053e7ea9524e595639733711162801d7fb168114f880455168916429cc5"}}