{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:XNKVMX6F4MF277SKPP7GOHHEET","short_pith_number":"pith:XNKVMX6F","canonical_record":{"source":{"id":"2008.03933","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-10T07:38:33Z","cross_cats_sorted":[],"title_canon_sha256":"cdb9d7632829a3d03cd14ee30266c6ef5cebf47cb1bd4d62371e31ebbd909201","abstract_canon_sha256":"fd68b3c059c9335ae9a13f38ced2afa1af960bee7c2f81a5ab0ba023905109c3"},"schema_version":"1.0"},"canonical_sha256":"bb55565fc5e30baffe4a7bfe671ce424fc3a6af4552d903b63f6d882bee44f83","source":{"kind":"arxiv","id":"2008.03933","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.03933","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"arxiv_version","alias_value":"2008.03933v1","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.03933","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"pith_short_12","alias_value":"XNKVMX6F4MF2","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"pith_short_16","alias_value":"XNKVMX6F4MF277SK","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"pith_short_8","alias_value":"XNKVMX6F","created_at":"2026-07-05T02:01:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:XNKVMX6F4MF277SKPP7GOHHEET","target":"record","payload":{"canonical_record":{"source":{"id":"2008.03933","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-10T07:38:33Z","cross_cats_sorted":[],"title_canon_sha256":"cdb9d7632829a3d03cd14ee30266c6ef5cebf47cb1bd4d62371e31ebbd909201","abstract_canon_sha256":"fd68b3c059c9335ae9a13f38ced2afa1af960bee7c2f81a5ab0ba023905109c3"},"schema_version":"1.0"},"canonical_sha256":"bb55565fc5e30baffe4a7bfe671ce424fc3a6af4552d903b63f6d882bee44f83","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:01:44.786933Z","signature_b64":"uG/5lYn2mPwO6MuU1FRk3G3TP5gRTXjz8Rshpeh6nykNavUoYc9UG/i4dpdHcfFWeZ9YWVL9H93tEbn7ktvqCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bb55565fc5e30baffe4a7bfe671ce424fc3a6af4552d903b63f6d882bee44f83","last_reissued_at":"2026-07-05T02:01:44.786364Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:01:44.786364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.03933","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":"2026-07-05T02:01:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5K26IGMpE+pDzIkTcguVwlmswLrqsDGn9Aqm2sDhA3fi5oJyvRlkIhu9/m/pUfN5FVJm/57tR9TPqAkDc6byCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:57:42.525568Z"},"content_sha256":"675675f2ce7c2f15ff48ed7833132a4a5c03ebcc408ba4cc72ce15264305c35b","schema_version":"1.0","event_id":"sha256:675675f2ce7c2f15ff48ed7833132a4a5c03ebcc408ba4cc72ce15264305c35b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:XNKVMX6F4MF277SKPP7GOHHEET","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interface-Confined Doubly Anisotropic Oxidation of Two-Dimensional MoS2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Haneul Kang, Kenji Watanabe, Seonghyun Koo, Sunmin Ryu, Takashi Taniguchi, Wontaek Kim, Yejin Ryu","submitted_at":"2020-08-10T07:38:33Z","abstract_excerpt":"Despite their importance, chemical reactions confined in a low dimensional space are elusive and experimentally intractable. In this work, we report doubly anisotropic, in-plane and out-of-plane, oxidation reactions of two-dimensional crystals, by resolving interface-confined thermal oxidation of a single and multilayer MoS2 supported on silica substrates from their conventional surface reaction. Using optical second-harmonic generation spectroscopy of artificially stacked multilayers, we directly proved that crystallographically oriented triangular oxides (TOs) were formed in the bottommost l"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.03933","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/2008.03933/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":"2026-07-05T02:01:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZGi9WzHhYQLJhzNvfkPkyVLnzS70XtAujQi8igkd9P9+AUmGfHCfSqHzC5WcJsF9cvU39/4eeIz6kcSkqXGoDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T19:57:42.525949Z"},"content_sha256":"69999dce8149dbb907276ea8e522852459e625faf711709d268d8b67765e069b","schema_version":"1.0","event_id":"sha256:69999dce8149dbb907276ea8e522852459e625faf711709d268d8b67765e069b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XNKVMX6F4MF277SKPP7GOHHEET/bundle.json","state_url":"https://pith.science/pith/XNKVMX6F4MF277SKPP7GOHHEET/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XNKVMX6F4MF277SKPP7GOHHEET/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":"2026-08-03T19:57:42Z","links":{"resolver":"https://pith.science/pith/XNKVMX6F4MF277SKPP7GOHHEET","bundle":"https://pith.science/pith/XNKVMX6F4MF277SKPP7GOHHEET/bundle.json","state":"https://pith.science/pith/XNKVMX6F4MF277SKPP7GOHHEET/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XNKVMX6F4MF277SKPP7GOHHEET/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:XNKVMX6F4MF277SKPP7GOHHEET","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":"fd68b3c059c9335ae9a13f38ced2afa1af960bee7c2f81a5ab0ba023905109c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-10T07:38:33Z","title_canon_sha256":"cdb9d7632829a3d03cd14ee30266c6ef5cebf47cb1bd4d62371e31ebbd909201"},"schema_version":"1.0","source":{"id":"2008.03933","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.03933","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"arxiv_version","alias_value":"2008.03933v1","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.03933","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"pith_short_12","alias_value":"XNKVMX6F4MF2","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"pith_short_16","alias_value":"XNKVMX6F4MF277SK","created_at":"2026-07-05T02:01:44Z"},{"alias_kind":"pith_short_8","alias_value":"XNKVMX6F","created_at":"2026-07-05T02:01:44Z"}],"graph_snapshots":[{"event_id":"sha256:69999dce8149dbb907276ea8e522852459e625faf711709d268d8b67765e069b","target":"graph","created_at":"2026-07-05T02:01:44Z","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/2008.03933/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Despite their importance, chemical reactions confined in a low dimensional space are elusive and experimentally intractable. In this work, we report doubly anisotropic, in-plane and out-of-plane, oxidation reactions of two-dimensional crystals, by resolving interface-confined thermal oxidation of a single and multilayer MoS2 supported on silica substrates from their conventional surface reaction. Using optical second-harmonic generation spectroscopy of artificially stacked multilayers, we directly proved that crystallographically oriented triangular oxides (TOs) were formed in the bottommost l","authors_text":"Haneul Kang, Kenji Watanabe, Seonghyun Koo, Sunmin Ryu, Takashi Taniguchi, Wontaek Kim, Yejin Ryu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-10T07:38:33Z","title":"Interface-Confined Doubly Anisotropic Oxidation of Two-Dimensional MoS2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.03933","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":"sha256:675675f2ce7c2f15ff48ed7833132a4a5c03ebcc408ba4cc72ce15264305c35b","target":"record","created_at":"2026-07-05T02:01:44Z","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":"fd68b3c059c9335ae9a13f38ced2afa1af960bee7c2f81a5ab0ba023905109c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-08-10T07:38:33Z","title_canon_sha256":"cdb9d7632829a3d03cd14ee30266c6ef5cebf47cb1bd4d62371e31ebbd909201"},"schema_version":"1.0","source":{"id":"2008.03933","kind":"arxiv","version":1}},"canonical_sha256":"bb55565fc5e30baffe4a7bfe671ce424fc3a6af4552d903b63f6d882bee44f83","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bb55565fc5e30baffe4a7bfe671ce424fc3a6af4552d903b63f6d882bee44f83","first_computed_at":"2026-07-05T02:01:44.786364Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:01:44.786364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uG/5lYn2mPwO6MuU1FRk3G3TP5gRTXjz8Rshpeh6nykNavUoYc9UG/i4dpdHcfFWeZ9YWVL9H93tEbn7ktvqCg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:01:44.786933Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.03933","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:675675f2ce7c2f15ff48ed7833132a4a5c03ebcc408ba4cc72ce15264305c35b","sha256:69999dce8149dbb907276ea8e522852459e625faf711709d268d8b67765e069b"],"state_sha256":"48c5f23c0021da79f1133c3f19566fdbe657f6f2d77d73f06bea491da4cfe685"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AP2yltyUUac/avCE3GUl0FfJyMQ9MKg0XW2TdaVmmf+m1Tun4s7f1q7PZboCxabNEXyu07hjvmmu8Cs3iNjRCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T19:57:42.528951Z","bundle_sha256":"1f31b2364e978158642d4848a9c8b57fe76253e4f46442a8b7595947b3f32bfb"}}