{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZSHBWGKDH73NYOWLLIWIGQ44NY","short_pith_number":"pith:ZSHBWGKD","canonical_record":{"source":{"id":"1903.11645","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-03-27T18:46:38Z","cross_cats_sorted":[],"title_canon_sha256":"548de864027aae260a5b0185633d876fdc8c0de5e247840aec4fc41f872150e6","abstract_canon_sha256":"0bfae661dd079ebae2a46ecae1a505eebd3c6844ac804467cb6d06d2240285dd"},"schema_version":"1.0"},"canonical_sha256":"cc8e1b19433ff6dc3acb5a2c83439c6e30cd59a48b0c4b7499c029296efbbc3b","source":{"kind":"arxiv","id":"1903.11645","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.11645","created_at":"2026-05-17T23:47:35Z"},{"alias_kind":"arxiv_version","alias_value":"1903.11645v2","created_at":"2026-05-17T23:47:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.11645","created_at":"2026-05-17T23:47:35Z"},{"alias_kind":"pith_short_12","alias_value":"ZSHBWGKDH73N","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZSHBWGKDH73NYOWL","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZSHBWGKD","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZSHBWGKDH73NYOWLLIWIGQ44NY","target":"record","payload":{"canonical_record":{"source":{"id":"1903.11645","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-03-27T18:46:38Z","cross_cats_sorted":[],"title_canon_sha256":"548de864027aae260a5b0185633d876fdc8c0de5e247840aec4fc41f872150e6","abstract_canon_sha256":"0bfae661dd079ebae2a46ecae1a505eebd3c6844ac804467cb6d06d2240285dd"},"schema_version":"1.0"},"canonical_sha256":"cc8e1b19433ff6dc3acb5a2c83439c6e30cd59a48b0c4b7499c029296efbbc3b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:47:35.628341Z","signature_b64":"7RH6yaCQCOCIBFt3bv0/0zUa6/co3Q8Ymzf0Jnbt32zRDl8DBT+mBrA/7vF/5Pi89WaFHYLrt1hKVtHj9+seDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc8e1b19433ff6dc3acb5a2c83439c6e30cd59a48b0c4b7499c029296efbbc3b","last_reissued_at":"2026-05-17T23:47:35.627930Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:47:35.627930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.11645","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":"2026-05-17T23:47:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xGstlj8plR9jkqyyQol4SKHk3tslu2tVOKG6p/YzwKRaQ3HuGfW5wYmozNw/FBRLF1TYwFt9AZqPBS+4t9iPCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:56:24.602672Z"},"content_sha256":"8d73eb857a508a0b8b9673cda998544f29571da9b50c9fa18e03343d317260a6","schema_version":"1.0","event_id":"sha256:8d73eb857a508a0b8b9673cda998544f29571da9b50c9fa18e03343d317260a6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZSHBWGKDH73NYOWLLIWIGQ44NY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-temperature-grown buffer layer boosts electron mobility in epitaxial La-doped BaSnO$_3$/SrZrO$_3$ heterostructures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Arnaud P. Nono Tchiomo, Bryan P. Doyle, Jochen Mannhart, Peter van Aken, Prosper Ngabonziza, Wilfried Sigle, Wolfgang Braun","submitted_at":"2019-03-27T18:46:38Z","abstract_excerpt":"By inserting a SrZrO$_3$ buffer layer between the film and the substrate, we demonstrate a significant reduction of the threading dislocation density with an associated improvement of the electron mobility in La:BaSnO$_3$ films. A room temperature mobility of 140 cm$^2$ V$^{-1}\\text{s}^{-1}$ is achieved for 25-nm-thick films without any post-growth treatment. The density of threading dislocations is only $4.9\\times 10^{9}$ cm$^{-2}$ for buffered films prepared on (110) TbScO$_3$ substrates by pulsed laser deposition."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.11645","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":""},"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":"2026-05-17T23:47:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yDy8EvjwiWGN+PyR3qYBHxRCdsY6AX/lExUC9y7jGXu54VBO5/k5Py6Dt+tjygIR4WjWzCPpe+hjw1iu0DIBAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:56:24.603020Z"},"content_sha256":"22659fa292cfc54228ad30a04de148b0c58a0690b370aa71b5351a43483029e7","schema_version":"1.0","event_id":"sha256:22659fa292cfc54228ad30a04de148b0c58a0690b370aa71b5351a43483029e7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZSHBWGKDH73NYOWLLIWIGQ44NY/bundle.json","state_url":"https://pith.science/pith/ZSHBWGKDH73NYOWLLIWIGQ44NY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZSHBWGKDH73NYOWLLIWIGQ44NY/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":"2026-06-01T06:56:24Z","links":{"resolver":"https://pith.science/pith/ZSHBWGKDH73NYOWLLIWIGQ44NY","bundle":"https://pith.science/pith/ZSHBWGKDH73NYOWLLIWIGQ44NY/bundle.json","state":"https://pith.science/pith/ZSHBWGKDH73NYOWLLIWIGQ44NY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZSHBWGKDH73NYOWLLIWIGQ44NY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZSHBWGKDH73NYOWLLIWIGQ44NY","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":"0bfae661dd079ebae2a46ecae1a505eebd3c6844ac804467cb6d06d2240285dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-03-27T18:46:38Z","title_canon_sha256":"548de864027aae260a5b0185633d876fdc8c0de5e247840aec4fc41f872150e6"},"schema_version":"1.0","source":{"id":"1903.11645","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.11645","created_at":"2026-05-17T23:47:35Z"},{"alias_kind":"arxiv_version","alias_value":"1903.11645v2","created_at":"2026-05-17T23:47:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.11645","created_at":"2026-05-17T23:47:35Z"},{"alias_kind":"pith_short_12","alias_value":"ZSHBWGKDH73N","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZSHBWGKDH73NYOWL","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZSHBWGKD","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:22659fa292cfc54228ad30a04de148b0c58a0690b370aa71b5351a43483029e7","target":"graph","created_at":"2026-05-17T23:47:35Z","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"},"paper":{"abstract_excerpt":"By inserting a SrZrO$_3$ buffer layer between the film and the substrate, we demonstrate a significant reduction of the threading dislocation density with an associated improvement of the electron mobility in La:BaSnO$_3$ films. A room temperature mobility of 140 cm$^2$ V$^{-1}\\text{s}^{-1}$ is achieved for 25-nm-thick films without any post-growth treatment. The density of threading dislocations is only $4.9\\times 10^{9}$ cm$^{-2}$ for buffered films prepared on (110) TbScO$_3$ substrates by pulsed laser deposition.","authors_text":"Arnaud P. Nono Tchiomo, Bryan P. Doyle, Jochen Mannhart, Peter van Aken, Prosper Ngabonziza, Wilfried Sigle, Wolfgang Braun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-03-27T18:46:38Z","title":"High-temperature-grown buffer layer boosts electron mobility in epitaxial La-doped BaSnO$_3$/SrZrO$_3$ heterostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.11645","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":"sha256:8d73eb857a508a0b8b9673cda998544f29571da9b50c9fa18e03343d317260a6","target":"record","created_at":"2026-05-17T23:47:35Z","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":"0bfae661dd079ebae2a46ecae1a505eebd3c6844ac804467cb6d06d2240285dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-03-27T18:46:38Z","title_canon_sha256":"548de864027aae260a5b0185633d876fdc8c0de5e247840aec4fc41f872150e6"},"schema_version":"1.0","source":{"id":"1903.11645","kind":"arxiv","version":2}},"canonical_sha256":"cc8e1b19433ff6dc3acb5a2c83439c6e30cd59a48b0c4b7499c029296efbbc3b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc8e1b19433ff6dc3acb5a2c83439c6e30cd59a48b0c4b7499c029296efbbc3b","first_computed_at":"2026-05-17T23:47:35.627930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:35.627930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7RH6yaCQCOCIBFt3bv0/0zUa6/co3Q8Ymzf0Jnbt32zRDl8DBT+mBrA/7vF/5Pi89WaFHYLrt1hKVtHj9+seDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:35.628341Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.11645","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d73eb857a508a0b8b9673cda998544f29571da9b50c9fa18e03343d317260a6","sha256:22659fa292cfc54228ad30a04de148b0c58a0690b370aa71b5351a43483029e7"],"state_sha256":"dcc820de50a56148742aa5c9f39ba352c9f26c743099975602f548794d7a06da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Le6jmKbl1/aFmzuhHzgxQc2oRFbeNxTL/dVnfuZBYrhXhUtQEcKF7yRDLj5XFCGLCu++MILBExrTHnhXJhsbDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T06:56:24.604879Z","bundle_sha256":"630d506fc4aa24400bfa707d0ff1278902dd69dd37c23cb14df036f76a7608a6"}}