{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:MANM27RWDWLIYGOWD4CEBVPZY7","short_pith_number":"pith:MANM27RW","canonical_record":{"source":{"id":"1907.02768","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-05T11:00:32Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"109957815deb27cda55aacdeed647800055e008fdc8f9abefbec749e12c9f11e","abstract_canon_sha256":"d53c3d6ec91e996ad17e7d90343482adaf44d96d0ef57729a0d5f6525210281f"},"schema_version":"1.0"},"canonical_sha256":"601acd7e361d968c19d61f0440d5f9c7c2d5b9adfe6e81872473baa065e67040","source":{"kind":"arxiv","id":"1907.02768","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.02768","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"arxiv_version","alias_value":"1907.02768v1","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.02768","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"pith_short_12","alias_value":"MANM27RWDWLI","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MANM27RWDWLIYGOW","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MANM27RW","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:MANM27RWDWLIYGOWD4CEBVPZY7","target":"record","payload":{"canonical_record":{"source":{"id":"1907.02768","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-05T11:00:32Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"109957815deb27cda55aacdeed647800055e008fdc8f9abefbec749e12c9f11e","abstract_canon_sha256":"d53c3d6ec91e996ad17e7d90343482adaf44d96d0ef57729a0d5f6525210281f"},"schema_version":"1.0"},"canonical_sha256":"601acd7e361d968c19d61f0440d5f9c7c2d5b9adfe6e81872473baa065e67040","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:23.206504Z","signature_b64":"MGwjxJsT2WtygLQNr3M0c/KlS4zpGleITiGLqmTNkuaDpOtDmqDSoOOEusCKA8WNztfkQr5G8KzApUFdELiOCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"601acd7e361d968c19d61f0440d5f9c7c2d5b9adfe6e81872473baa065e67040","last_reissued_at":"2026-05-17T23:41:23.205788Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:23.205788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.02768","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":"2026-05-17T23:41:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ELZcq+x/jD8ZubOPBfkYpmlou+1dnNy32JyakLx9Xd1JJjAxnj/PZHJxSlYtC5EhwUVVnKfeuHYIHZcuBHTeDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:47:33.102764Z"},"content_sha256":"571b72027a6198d0cfc55465275bcafb01a55157d4bf943d6a006bff348a7143","schema_version":"1.0","event_id":"sha256:571b72027a6198d0cfc55465275bcafb01a55157d4bf943d6a006bff348a7143"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:MANM27RWDWLIYGOWD4CEBVPZY7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Isolating hydrogen in hexagonal boron nitride bubbles by a plasma treatment","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"physics.app-ph","authors_text":"Chengxin Jiang, Chen Li, Chi Zhang, Daoli Zhang, Haomin Wang, Hong Xie, Huishan Wang, Jannik Meyer, Kenan Elibol, Kenji Watanabe, Li He, Lingxiu Chen, Takashi Taniguchi, Wenhui Wang, Xiangshui Miao, Xiaoming Xie, XiuJun Wang, Zhangting Wu, Zhenhua Ni","submitted_at":"2019-07-05T11:00:32Z","abstract_excerpt":"Atomically thin hexagonal boron nitride (h-BN) is often regarded as an elastic film that is impermeable to gases. The high stabilities in thermal and chemical properties allow h-BN to serve as a gas barrier under extreme conditions.In this work, we demonstrate the isolation of hydrogen in bubbles of h-BN via plasma treatment.Detailed characterizations reveal that the substrates do not show chemical change after treatment. The bubbles are found to withstand thermal treatment in air,even at 800 degree celsius. Scanning transmission electron microscopy investigation shows that the h-BN multilayer"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.02768","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":"2026-05-17T23:41:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1H8JN8M7JcuABSA6DxKzOUX49B/8r0HXuilSeESGDaZovqfeuVR5p5MM2+B9xrFXAQ0twJcHwOiuKa0gJC8vDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:47:33.103508Z"},"content_sha256":"5c7ef8e641fcf8d73e8263212dd4ab6db61c7dbe805b4cce1a7667d821c6eaeb","schema_version":"1.0","event_id":"sha256:5c7ef8e641fcf8d73e8263212dd4ab6db61c7dbe805b4cce1a7667d821c6eaeb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MANM27RWDWLIYGOWD4CEBVPZY7/bundle.json","state_url":"https://pith.science/pith/MANM27RWDWLIYGOWD4CEBVPZY7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MANM27RWDWLIYGOWD4CEBVPZY7/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":"2026-05-25T13:47:33Z","links":{"resolver":"https://pith.science/pith/MANM27RWDWLIYGOWD4CEBVPZY7","bundle":"https://pith.science/pith/MANM27RWDWLIYGOWD4CEBVPZY7/bundle.json","state":"https://pith.science/pith/MANM27RWDWLIYGOWD4CEBVPZY7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MANM27RWDWLIYGOWD4CEBVPZY7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:MANM27RWDWLIYGOWD4CEBVPZY7","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":"d53c3d6ec91e996ad17e7d90343482adaf44d96d0ef57729a0d5f6525210281f","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-05T11:00:32Z","title_canon_sha256":"109957815deb27cda55aacdeed647800055e008fdc8f9abefbec749e12c9f11e"},"schema_version":"1.0","source":{"id":"1907.02768","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.02768","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"arxiv_version","alias_value":"1907.02768v1","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.02768","created_at":"2026-05-17T23:41:23Z"},{"alias_kind":"pith_short_12","alias_value":"MANM27RWDWLI","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"MANM27RWDWLIYGOW","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"MANM27RW","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:5c7ef8e641fcf8d73e8263212dd4ab6db61c7dbe805b4cce1a7667d821c6eaeb","target":"graph","created_at":"2026-05-17T23:41:23Z","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":"Atomically thin hexagonal boron nitride (h-BN) is often regarded as an elastic film that is impermeable to gases. The high stabilities in thermal and chemical properties allow h-BN to serve as a gas barrier under extreme conditions.In this work, we demonstrate the isolation of hydrogen in bubbles of h-BN via plasma treatment.Detailed characterizations reveal that the substrates do not show chemical change after treatment. The bubbles are found to withstand thermal treatment in air,even at 800 degree celsius. Scanning transmission electron microscopy investigation shows that the h-BN multilayer","authors_text":"Chengxin Jiang, Chen Li, Chi Zhang, Daoli Zhang, Haomin Wang, Hong Xie, Huishan Wang, Jannik Meyer, Kenan Elibol, Kenji Watanabe, Li He, Lingxiu Chen, Takashi Taniguchi, Wenhui Wang, Xiangshui Miao, Xiaoming Xie, XiuJun Wang, Zhangting Wu, Zhenhua Ni","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-05T11:00:32Z","title":"Isolating hydrogen in hexagonal boron nitride bubbles by a plasma treatment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.02768","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":"sha256:571b72027a6198d0cfc55465275bcafb01a55157d4bf943d6a006bff348a7143","target":"record","created_at":"2026-05-17T23:41:23Z","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":"d53c3d6ec91e996ad17e7d90343482adaf44d96d0ef57729a0d5f6525210281f","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.app-ph","submitted_at":"2019-07-05T11:00:32Z","title_canon_sha256":"109957815deb27cda55aacdeed647800055e008fdc8f9abefbec749e12c9f11e"},"schema_version":"1.0","source":{"id":"1907.02768","kind":"arxiv","version":1}},"canonical_sha256":"601acd7e361d968c19d61f0440d5f9c7c2d5b9adfe6e81872473baa065e67040","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"601acd7e361d968c19d61f0440d5f9c7c2d5b9adfe6e81872473baa065e67040","first_computed_at":"2026-05-17T23:41:23.205788Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:23.205788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MGwjxJsT2WtygLQNr3M0c/KlS4zpGleITiGLqmTNkuaDpOtDmqDSoOOEusCKA8WNztfkQr5G8KzApUFdELiOCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:23.206504Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.02768","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:571b72027a6198d0cfc55465275bcafb01a55157d4bf943d6a006bff348a7143","sha256:5c7ef8e641fcf8d73e8263212dd4ab6db61c7dbe805b4cce1a7667d821c6eaeb"],"state_sha256":"b2e7fa2e3caabd94cdb2d981e5d57360209e68926ebe9a02c880aae960c025d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PcTXKOG0GPkCFQGNOYTvliGhnyx8EngNlneikXoCgw1GROSe35o2My9nrSkib1JkQ9ELrn/p02m2u+4w4PPiBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T13:47:33.107371Z","bundle_sha256":"58db3511f8b60de9715fc5e27862cf81377636ff2476426fc2900affa6012dea"}}