{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:UAR4ZVIGFAW3P3EUPZNEAK4QVX","short_pith_number":"pith:UAR4ZVIG","canonical_record":{"source":{"id":"2106.07365","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-14T12:37:01Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"69274faa70f96a5e6d6825c17d2ffbf103c195d3f200ef8a993de20d25c5ae6c","abstract_canon_sha256":"4782274226accbe0ab549fd7cf1c65cb6ca401b280af151484a703e71dcc3677"},"schema_version":"1.0"},"canonical_sha256":"a023ccd506282db7ec947e5a402b90add383f118886b0849a1b1fa1b21341cad","source":{"kind":"arxiv","id":"2106.07365","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.07365","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"arxiv_version","alias_value":"2106.07365v1","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.07365","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"pith_short_12","alias_value":"UAR4ZVIGFAW3","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"pith_short_16","alias_value":"UAR4ZVIGFAW3P3EU","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"pith_short_8","alias_value":"UAR4ZVIG","created_at":"2026-07-05T03:35:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:UAR4ZVIGFAW3P3EUPZNEAK4QVX","target":"record","payload":{"canonical_record":{"source":{"id":"2106.07365","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-14T12:37:01Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"69274faa70f96a5e6d6825c17d2ffbf103c195d3f200ef8a993de20d25c5ae6c","abstract_canon_sha256":"4782274226accbe0ab549fd7cf1c65cb6ca401b280af151484a703e71dcc3677"},"schema_version":"1.0"},"canonical_sha256":"a023ccd506282db7ec947e5a402b90add383f118886b0849a1b1fa1b21341cad","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:35:49.811204Z","signature_b64":"zzG3ly4qb6cmd3wWbl6IjR8W3fYID77Pys2fr+9cs86ATn70EtDjhljYK0aYAGPE8sRo48CvhBnM6kmGkVGeAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a023ccd506282db7ec947e5a402b90add383f118886b0849a1b1fa1b21341cad","last_reissued_at":"2026-07-05T03:35:49.810751Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:35:49.810751Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.07365","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":"2026-07-05T03:35:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u0K8FBZughgnuhZmLhhDxEoM0JhwvWVw0ZpdMP+2x9RJSEOJdefqHgAQc+ez0p5+99vF7H4JjJpZhX6zCQrWAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T16:58:11.978111Z"},"content_sha256":"bc9ef17e12a9de82a1651a8dbb24d90be63085af5a12d8e409b69181e7a2e231","schema_version":"1.0","event_id":"sha256:bc9ef17e12a9de82a1651a8dbb24d90be63085af5a12d8e409b69181e7a2e231"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:UAR4ZVIGFAW3P3EUPZNEAK4QVX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectral emission dependence of tin-vacancy centers in diamond from thermal processing and chemical functionalization","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"quant-ph","authors_text":"Ekaterina Moreva, Emilio Corte, Ivo Pietro Degiovanni, Jacopo Forneris, Jan Meijer, Marco Genovese, Paolo Olivero, Paolo Traina, S\\'ebastien Pezzagna, Selene Sachero, Sviatoslav Ditalia Tchernij, Tobias L\\\"uhmann","submitted_at":"2021-06-14T12:37:01Z","abstract_excerpt":"We report a systematic photoluminescence (PL) investigation of the spectral emission properties of individual optical defects fabricated in diamond upon ion implantation and annealing. Three spectral lines at 620 nm, 631 nm, and 647 nm are identified and attributed to the SnV center due to their occurrence in the PL spectra of the very same single-photon emitting defects. We show that the relative occurrence of the three spectral features can be modified by oxidizing the sample surface following thermal annealing. We finally report the relevant emission properties of each class of individual e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.07365","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/2106.07365/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":"2026-07-05T03:35:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DYu3BUPtGebmzq+UAUKYrfHMA1sA48/Apxy/g5zze3Lk0JTu8O6wzWmh1w23AkvPdnAgrgGh0YIYd7Z2pbWCCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T16:58:11.978723Z"},"content_sha256":"e0df2dce42e96b222e577e9b1989c1b177645823de1a0291d18bd3342ef8554c","schema_version":"1.0","event_id":"sha256:e0df2dce42e96b222e577e9b1989c1b177645823de1a0291d18bd3342ef8554c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UAR4ZVIGFAW3P3EUPZNEAK4QVX/bundle.json","state_url":"https://pith.science/pith/UAR4ZVIGFAW3P3EUPZNEAK4QVX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UAR4ZVIGFAW3P3EUPZNEAK4QVX/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":"2026-08-21T16:58:11Z","links":{"resolver":"https://pith.science/pith/UAR4ZVIGFAW3P3EUPZNEAK4QVX","bundle":"https://pith.science/pith/UAR4ZVIGFAW3P3EUPZNEAK4QVX/bundle.json","state":"https://pith.science/pith/UAR4ZVIGFAW3P3EUPZNEAK4QVX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UAR4ZVIGFAW3P3EUPZNEAK4QVX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:UAR4ZVIGFAW3P3EUPZNEAK4QVX","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":"4782274226accbe0ab549fd7cf1c65cb6ca401b280af151484a703e71dcc3677","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-14T12:37:01Z","title_canon_sha256":"69274faa70f96a5e6d6825c17d2ffbf103c195d3f200ef8a993de20d25c5ae6c"},"schema_version":"1.0","source":{"id":"2106.07365","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.07365","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"arxiv_version","alias_value":"2106.07365v1","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.07365","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"pith_short_12","alias_value":"UAR4ZVIGFAW3","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"pith_short_16","alias_value":"UAR4ZVIGFAW3P3EU","created_at":"2026-07-05T03:35:49Z"},{"alias_kind":"pith_short_8","alias_value":"UAR4ZVIG","created_at":"2026-07-05T03:35:49Z"}],"graph_snapshots":[{"event_id":"sha256:e0df2dce42e96b222e577e9b1989c1b177645823de1a0291d18bd3342ef8554c","target":"graph","created_at":"2026-07-05T03:35:49Z","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/2106.07365/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report a systematic photoluminescence (PL) investigation of the spectral emission properties of individual optical defects fabricated in diamond upon ion implantation and annealing. Three spectral lines at 620 nm, 631 nm, and 647 nm are identified and attributed to the SnV center due to their occurrence in the PL spectra of the very same single-photon emitting defects. We show that the relative occurrence of the three spectral features can be modified by oxidizing the sample surface following thermal annealing. We finally report the relevant emission properties of each class of individual e","authors_text":"Ekaterina Moreva, Emilio Corte, Ivo Pietro Degiovanni, Jacopo Forneris, Jan Meijer, Marco Genovese, Paolo Olivero, Paolo Traina, S\\'ebastien Pezzagna, Selene Sachero, Sviatoslav Ditalia Tchernij, Tobias L\\\"uhmann","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-14T12:37:01Z","title":"Spectral emission dependence of tin-vacancy centers in diamond from thermal processing and chemical functionalization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.07365","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:bc9ef17e12a9de82a1651a8dbb24d90be63085af5a12d8e409b69181e7a2e231","target":"record","created_at":"2026-07-05T03:35:49Z","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":"4782274226accbe0ab549fd7cf1c65cb6ca401b280af151484a703e71dcc3677","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2021-06-14T12:37:01Z","title_canon_sha256":"69274faa70f96a5e6d6825c17d2ffbf103c195d3f200ef8a993de20d25c5ae6c"},"schema_version":"1.0","source":{"id":"2106.07365","kind":"arxiv","version":1}},"canonical_sha256":"a023ccd506282db7ec947e5a402b90add383f118886b0849a1b1fa1b21341cad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a023ccd506282db7ec947e5a402b90add383f118886b0849a1b1fa1b21341cad","first_computed_at":"2026-07-05T03:35:49.810751Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:35:49.810751Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zzG3ly4qb6cmd3wWbl6IjR8W3fYID77Pys2fr+9cs86ATn70EtDjhljYK0aYAGPE8sRo48CvhBnM6kmGkVGeAg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:35:49.811204Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.07365","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc9ef17e12a9de82a1651a8dbb24d90be63085af5a12d8e409b69181e7a2e231","sha256:e0df2dce42e96b222e577e9b1989c1b177645823de1a0291d18bd3342ef8554c"],"state_sha256":"8febf654bea55218385b44135ac1b17bc388a7da56cc7140b293be51cb288774"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XQsqmX1qt9B/HHpb9RY0oG48XCNyKA9d98vaMysmaSIgEgkxW8FV0ClJBRIZ4iILbYEiy2Mrk9w5npvO0RbZDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T16:58:11.983710Z","bundle_sha256":"86ddb45f50b200b05dfebab2126ae134a6ddaf65e2a856232833af389d4b7d4e"}}