{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:TAVFRQXQKZLGVHZJEAR2JHCVY4","short_pith_number":"pith:TAVFRQXQ","canonical_record":{"source":{"id":"2208.08775","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-08-18T11:22:41Z","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"title_canon_sha256":"4de1442bf41b7f567b3e2e88934fcbe6274fea6cb66feab65834c155fcc1f996","abstract_canon_sha256":"713a294a14a4143cae5f0b0424414e52e94c87a77e26627ed6963d1dafee269b"},"schema_version":"1.0"},"canonical_sha256":"982a58c2f056566a9f292023a49c55c738131ea0fd4e16757984ec023a26cc12","source":{"kind":"arxiv","id":"2208.08775","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.08775","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"arxiv_version","alias_value":"2208.08775v1","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.08775","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"pith_short_12","alias_value":"TAVFRQXQKZLG","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"pith_short_16","alias_value":"TAVFRQXQKZLGVHZJ","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"pith_short_8","alias_value":"TAVFRQXQ","created_at":"2026-07-05T07:05:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:TAVFRQXQKZLGVHZJEAR2JHCVY4","target":"record","payload":{"canonical_record":{"source":{"id":"2208.08775","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-08-18T11:22:41Z","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"title_canon_sha256":"4de1442bf41b7f567b3e2e88934fcbe6274fea6cb66feab65834c155fcc1f996","abstract_canon_sha256":"713a294a14a4143cae5f0b0424414e52e94c87a77e26627ed6963d1dafee269b"},"schema_version":"1.0"},"canonical_sha256":"982a58c2f056566a9f292023a49c55c738131ea0fd4e16757984ec023a26cc12","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:05:40.166140Z","signature_b64":"V09mGCVP+bWEcvG9CcB7iJ7o8ZCfHa1ilTKnNOZYJx/QuCcceIw1XmvQXec+X83qcusqdRl57QfUWhLoFPwVAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"982a58c2f056566a9f292023a49c55c738131ea0fd4e16757984ec023a26cc12","last_reissued_at":"2026-07-05T07:05:40.165680Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:05:40.165680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2208.08775","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":"2026-07-05T07:05:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pFw59gi09NM+ldALlZCBi6O2GYZihf3HklDSBayhfhKtnMWw/bpNQpu3peb/cufk0ttwKYkRHqiwjWKwgme7AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:50:00.598865Z"},"content_sha256":"bfc57697b81c567c26fc6fda5a2e37c5bb1e0a493356c84129398fbd4ac6c608","schema_version":"1.0","event_id":"sha256:bfc57697b81c567c26fc6fda5a2e37c5bb1e0a493356c84129398fbd4ac6c608"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:TAVFRQXQKZLGVHZJEAR2JHCVY4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanoscale mapping of sub-gap electroluminescence from step-bunched, oxidized 4H-SiC surfaces","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall","quant-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alistair C. H. Rowe, Brett C. Johnson, Gabriel Ferro, Jacques Ding, Jacques Peretti, Jeffrey C. McCallum, Judith Woerle, Myl\\`ene Sauty, Natalia Alyabyeva, Yann Jousseaume","submitted_at":"2022-08-18T11:22:41Z","abstract_excerpt":"Scanning tunneling luminescence microscopy (STLM) along with scanning tunneling spectroscopy (STS) is applied to a step-bunched, oxidized 4H-SiC surface prepared on the silicon face of a commercial, n-type SiC wafer using a silicon melt process. The step-bunched surface consists of atomically smooth terraces parallel to the [0001] crystal planes, and rougher risers consisting of nanoscale steps formed by the termination of these planes. The rather striking topography of this surface is well resolved with large tip biases of the order of -8 V and set currents of magnitude less than 1 nA. Hyster"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.08775","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/2208.08775/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":"2026-07-05T07:05:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BiLFoMjxxxh2bS90T/pxm0yaVxEDwgATdKPbt19h11W/OfxEiKT7HvvwRiGQbPlGaI/O2J0EmFUzT6L92LrBCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T05:50:00.599374Z"},"content_sha256":"afc0c128fdeaedc10d4fe11201d5feaba22a6931b5af63c4a178683f674ffa05","schema_version":"1.0","event_id":"sha256:afc0c128fdeaedc10d4fe11201d5feaba22a6931b5af63c4a178683f674ffa05"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TAVFRQXQKZLGVHZJEAR2JHCVY4/bundle.json","state_url":"https://pith.science/pith/TAVFRQXQKZLGVHZJEAR2JHCVY4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TAVFRQXQKZLGVHZJEAR2JHCVY4/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":"2026-08-04T05:50:00Z","links":{"resolver":"https://pith.science/pith/TAVFRQXQKZLGVHZJEAR2JHCVY4","bundle":"https://pith.science/pith/TAVFRQXQKZLGVHZJEAR2JHCVY4/bundle.json","state":"https://pith.science/pith/TAVFRQXQKZLGVHZJEAR2JHCVY4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TAVFRQXQKZLGVHZJEAR2JHCVY4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:TAVFRQXQKZLGVHZJEAR2JHCVY4","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":"713a294a14a4143cae5f0b0424414e52e94c87a77e26627ed6963d1dafee269b","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-08-18T11:22:41Z","title_canon_sha256":"4de1442bf41b7f567b3e2e88934fcbe6274fea6cb66feab65834c155fcc1f996"},"schema_version":"1.0","source":{"id":"2208.08775","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2208.08775","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"arxiv_version","alias_value":"2208.08775v1","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2208.08775","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"pith_short_12","alias_value":"TAVFRQXQKZLG","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"pith_short_16","alias_value":"TAVFRQXQKZLGVHZJ","created_at":"2026-07-05T07:05:40Z"},{"alias_kind":"pith_short_8","alias_value":"TAVFRQXQ","created_at":"2026-07-05T07:05:40Z"}],"graph_snapshots":[{"event_id":"sha256:afc0c128fdeaedc10d4fe11201d5feaba22a6931b5af63c4a178683f674ffa05","target":"graph","created_at":"2026-07-05T07:05:40Z","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/2208.08775/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Scanning tunneling luminescence microscopy (STLM) along with scanning tunneling spectroscopy (STS) is applied to a step-bunched, oxidized 4H-SiC surface prepared on the silicon face of a commercial, n-type SiC wafer using a silicon melt process. The step-bunched surface consists of atomically smooth terraces parallel to the [0001] crystal planes, and rougher risers consisting of nanoscale steps formed by the termination of these planes. The rather striking topography of this surface is well resolved with large tip biases of the order of -8 V and set currents of magnitude less than 1 nA. Hyster","authors_text":"Alistair C. H. Rowe, Brett C. Johnson, Gabriel Ferro, Jacques Ding, Jacques Peretti, Jeffrey C. McCallum, Judith Woerle, Myl\\`ene Sauty, Natalia Alyabyeva, Yann Jousseaume","cross_cats":["cond-mat.mes-hall","quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-08-18T11:22:41Z","title":"Nanoscale mapping of sub-gap electroluminescence from step-bunched, oxidized 4H-SiC surfaces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2208.08775","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:bfc57697b81c567c26fc6fda5a2e37c5bb1e0a493356c84129398fbd4ac6c608","target":"record","created_at":"2026-07-05T07:05:40Z","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":"713a294a14a4143cae5f0b0424414e52e94c87a77e26627ed6963d1dafee269b","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-08-18T11:22:41Z","title_canon_sha256":"4de1442bf41b7f567b3e2e88934fcbe6274fea6cb66feab65834c155fcc1f996"},"schema_version":"1.0","source":{"id":"2208.08775","kind":"arxiv","version":1}},"canonical_sha256":"982a58c2f056566a9f292023a49c55c738131ea0fd4e16757984ec023a26cc12","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"982a58c2f056566a9f292023a49c55c738131ea0fd4e16757984ec023a26cc12","first_computed_at":"2026-07-05T07:05:40.165680Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:05:40.165680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V09mGCVP+bWEcvG9CcB7iJ7o8ZCfHa1ilTKnNOZYJx/QuCcceIw1XmvQXec+X83qcusqdRl57QfUWhLoFPwVAg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:05:40.166140Z","signed_message":"canonical_sha256_bytes"},"source_id":"2208.08775","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bfc57697b81c567c26fc6fda5a2e37c5bb1e0a493356c84129398fbd4ac6c608","sha256:afc0c128fdeaedc10d4fe11201d5feaba22a6931b5af63c4a178683f674ffa05"],"state_sha256":"68134c68d5cedf592bcac89b6a97ac843cf7f47b6efd38c07b578f6d4d5a18aa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oCpV2r0tnPRorcAj5l02Ad4jiDtJdKsSiwptmnuKJuYkDhnm2pWQzUAyHBmUUPZARPY5AbNOOeFFtq7IDA3+BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T05:50:00.604167Z","bundle_sha256":"8e5bfa15e22dcbcdfa14dc38c304067511521007132e417f8eede8ce8615e7d6"}}