{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:XS2KYR4LTT7QLH6V5CJ3YI2HZB","short_pith_number":"pith:XS2KYR4L","canonical_record":{"source":{"id":"1401.7201","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-01-28T14:53:31Z","cross_cats_sorted":[],"title_canon_sha256":"5f5b6563e04d08c09af21911ddaae550b58fe828b961faa4b4b8a4cf81befc85","abstract_canon_sha256":"be97420207b69610df68e4d8434ce273080107953dedfdd0ec04dd1207cc8de9"},"schema_version":"1.0"},"canonical_sha256":"bcb4ac478b9cff059fd5e893bc2347c86a0107c12c1d9ac150865acf27064226","source":{"kind":"arxiv","id":"1401.7201","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.7201","created_at":"2026-05-18T03:00:50Z"},{"alias_kind":"arxiv_version","alias_value":"1401.7201v1","created_at":"2026-05-18T03:00:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.7201","created_at":"2026-05-18T03:00:50Z"},{"alias_kind":"pith_short_12","alias_value":"XS2KYR4LTT7Q","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XS2KYR4LTT7QLH6V","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XS2KYR4L","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:XS2KYR4LTT7QLH6V5CJ3YI2HZB","target":"record","payload":{"canonical_record":{"source":{"id":"1401.7201","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-01-28T14:53:31Z","cross_cats_sorted":[],"title_canon_sha256":"5f5b6563e04d08c09af21911ddaae550b58fe828b961faa4b4b8a4cf81befc85","abstract_canon_sha256":"be97420207b69610df68e4d8434ce273080107953dedfdd0ec04dd1207cc8de9"},"schema_version":"1.0"},"canonical_sha256":"bcb4ac478b9cff059fd5e893bc2347c86a0107c12c1d9ac150865acf27064226","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:00:50.627508Z","signature_b64":"+6UqfVR7AQQxlxk8oUdPPytkU0bkC+nTfr4YOMZ+0aUbO27JI4Y2HKG124Cwf54fo7meVDWFXQGAGNnBVE8jBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bcb4ac478b9cff059fd5e893bc2347c86a0107c12c1d9ac150865acf27064226","last_reissued_at":"2026-05-18T03:00:50.627039Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:00:50.627039Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.7201","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":"2026-05-18T03:00:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TIO5PtaPGpSPeO14EULOyM4h1lTTbCrQ+oJA6p7eht20Cn+z9GnIR/v1IgTtAP8yD5aBfSS8TH7bENjun/ZQDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:27:01.561155Z"},"content_sha256":"49ea0a2d710142dc9bb9fa6ff95bc5058064ba92e6047639980b6c9a146a86ff","schema_version":"1.0","event_id":"sha256:49ea0a2d710142dc9bb9fa6ff95bc5058064ba92e6047639980b6c9a146a86ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:XS2KYR4LTT7QLH6V5CJ3YI2HZB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Persistent metal-insulator transition at the surface of an oxygen-deficient, epitaxial manganite film","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Guixin Cao, Hangwen Guo, Hongjun Gao, Jian Shen, Min Gao, Paul C. Snijders, Thomas Z. Ward, Wolter Siemons, Zheng Gai","submitted_at":"2014-01-28T14:53:31Z","abstract_excerpt":"The oxygen stoichiometry has a large influence on the physical and chemical properties of complex oxides. Most of the functionality in e.g. catalysis and electrochemistry depends in particular on control of the oxygen stoichiometry. In order to understand the fundamental properties of intrinsic surfaces of oxygen-deficient complex oxides, we report on in situ temperature dependent scanning tunnelling spectroscopy experiments on pristine oxygen deficient, epitaxial manganite films. Although these films are insulating in subsequent ex situ in-plane electronic transport experiments at all tempera"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.7201","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":""},"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":"2026-05-18T03:00:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H7xNXiqoDUZcPBe4hcCMBGna6ZoFk6rGlw7/KiNXk5AQiIajF2g42hMoiQCo+HX3Apc8rPkQDlu7F/f8vNJnAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:27:01.561711Z"},"content_sha256":"8996e8fddb0152650e0119ae83e494f053ae67a46f330b37995c7e3ee4e5aa84","schema_version":"1.0","event_id":"sha256:8996e8fddb0152650e0119ae83e494f053ae67a46f330b37995c7e3ee4e5aa84"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XS2KYR4LTT7QLH6V5CJ3YI2HZB/bundle.json","state_url":"https://pith.science/pith/XS2KYR4LTT7QLH6V5CJ3YI2HZB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XS2KYR4LTT7QLH6V5CJ3YI2HZB/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":"2026-05-31T23:27:01Z","links":{"resolver":"https://pith.science/pith/XS2KYR4LTT7QLH6V5CJ3YI2HZB","bundle":"https://pith.science/pith/XS2KYR4LTT7QLH6V5CJ3YI2HZB/bundle.json","state":"https://pith.science/pith/XS2KYR4LTT7QLH6V5CJ3YI2HZB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XS2KYR4LTT7QLH6V5CJ3YI2HZB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:XS2KYR4LTT7QLH6V5CJ3YI2HZB","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":"be97420207b69610df68e4d8434ce273080107953dedfdd0ec04dd1207cc8de9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-01-28T14:53:31Z","title_canon_sha256":"5f5b6563e04d08c09af21911ddaae550b58fe828b961faa4b4b8a4cf81befc85"},"schema_version":"1.0","source":{"id":"1401.7201","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.7201","created_at":"2026-05-18T03:00:50Z"},{"alias_kind":"arxiv_version","alias_value":"1401.7201v1","created_at":"2026-05-18T03:00:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.7201","created_at":"2026-05-18T03:00:50Z"},{"alias_kind":"pith_short_12","alias_value":"XS2KYR4LTT7Q","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"XS2KYR4LTT7QLH6V","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"XS2KYR4L","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:8996e8fddb0152650e0119ae83e494f053ae67a46f330b37995c7e3ee4e5aa84","target":"graph","created_at":"2026-05-18T03:00:50Z","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":"The oxygen stoichiometry has a large influence on the physical and chemical properties of complex oxides. Most of the functionality in e.g. catalysis and electrochemistry depends in particular on control of the oxygen stoichiometry. In order to understand the fundamental properties of intrinsic surfaces of oxygen-deficient complex oxides, we report on in situ temperature dependent scanning tunnelling spectroscopy experiments on pristine oxygen deficient, epitaxial manganite films. Although these films are insulating in subsequent ex situ in-plane electronic transport experiments at all tempera","authors_text":"Guixin Cao, Hangwen Guo, Hongjun Gao, Jian Shen, Min Gao, Paul C. Snijders, Thomas Z. Ward, Wolter Siemons, Zheng Gai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-01-28T14:53:31Z","title":"Persistent metal-insulator transition at the surface of an oxygen-deficient, epitaxial manganite film"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.7201","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":"sha256:49ea0a2d710142dc9bb9fa6ff95bc5058064ba92e6047639980b6c9a146a86ff","target":"record","created_at":"2026-05-18T03:00:50Z","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":"be97420207b69610df68e4d8434ce273080107953dedfdd0ec04dd1207cc8de9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-01-28T14:53:31Z","title_canon_sha256":"5f5b6563e04d08c09af21911ddaae550b58fe828b961faa4b4b8a4cf81befc85"},"schema_version":"1.0","source":{"id":"1401.7201","kind":"arxiv","version":1}},"canonical_sha256":"bcb4ac478b9cff059fd5e893bc2347c86a0107c12c1d9ac150865acf27064226","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bcb4ac478b9cff059fd5e893bc2347c86a0107c12c1d9ac150865acf27064226","first_computed_at":"2026-05-18T03:00:50.627039Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:00:50.627039Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+6UqfVR7AQQxlxk8oUdPPytkU0bkC+nTfr4YOMZ+0aUbO27JI4Y2HKG124Cwf54fo7meVDWFXQGAGNnBVE8jBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:00:50.627508Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.7201","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49ea0a2d710142dc9bb9fa6ff95bc5058064ba92e6047639980b6c9a146a86ff","sha256:8996e8fddb0152650e0119ae83e494f053ae67a46f330b37995c7e3ee4e5aa84"],"state_sha256":"d938c67b48a61a826c261e6c282563eac14f08170af7bea300bf467cf2f0c4d9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hbmsw1MqGWkWSCRmErDtju/dbrNDT/7a/erZFNR2qV3VPAFQ7rRvEpmbFzrsRRN8iTeZfSM+kArD3xlW9Z6/Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:27:01.564898Z","bundle_sha256":"f7d82345e19de8cc4baa95ac49d396b448a2f05842a223e91f49ff6b8b9c0953"}}