{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZIA3RO555P3LCCGN4YATMGDFN2","short_pith_number":"pith:ZIA3RO55","canonical_record":{"source":{"id":"1905.05493","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-14T10:09:41Z","cross_cats_sorted":[],"title_canon_sha256":"7444adfd98aeaf2103e4fcaf2a6219d2c74896ea8217dc3864ce87279c30403f","abstract_canon_sha256":"0d1a75a7f41ffed37b9b853720ae17129ea118f15b54eca00f98a75a7f987330"},"schema_version":"1.0"},"canonical_sha256":"ca01b8bbbdebf6b108cde6013618656eb942007db67f99582b086cd0af93b072","source":{"kind":"arxiv","id":"1905.05493","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.05493","created_at":"2026-05-17T23:43:14Z"},{"alias_kind":"arxiv_version","alias_value":"1905.05493v2","created_at":"2026-05-17T23:43:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.05493","created_at":"2026-05-17T23:43:14Z"},{"alias_kind":"pith_short_12","alias_value":"ZIA3RO555P3L","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZIA3RO555P3LCCGN","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZIA3RO55","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZIA3RO555P3LCCGN4YATMGDFN2","target":"record","payload":{"canonical_record":{"source":{"id":"1905.05493","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-14T10:09:41Z","cross_cats_sorted":[],"title_canon_sha256":"7444adfd98aeaf2103e4fcaf2a6219d2c74896ea8217dc3864ce87279c30403f","abstract_canon_sha256":"0d1a75a7f41ffed37b9b853720ae17129ea118f15b54eca00f98a75a7f987330"},"schema_version":"1.0"},"canonical_sha256":"ca01b8bbbdebf6b108cde6013618656eb942007db67f99582b086cd0af93b072","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:14.379649Z","signature_b64":"SkruBL/z5I6nWmPkSeMpsDeyeRZEcHuBkDCQijqedKXhmcIRaFfXTF+VHrm/9ZKuL8AU24KIBcpnpr3TNYRLCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca01b8bbbdebf6b108cde6013618656eb942007db67f99582b086cd0af93b072","last_reissued_at":"2026-05-17T23:43:14.379080Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:14.379080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.05493","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":"2026-05-17T23:43:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zuZ7F18xLN9ChfQlA/ntXCwtt0jjhfhRXFls07qCy3hD7B/uQyH4YuXY4zB1+l1/IJ9mMXGf7kaWlg2/QNjSDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:12:12.088826Z"},"content_sha256":"bcf4428c17ddfcf895f3b44c8a65cfe592e1f93c26daee6e92cdf833ce458a42","schema_version":"1.0","event_id":"sha256:bcf4428c17ddfcf895f3b44c8a65cfe592e1f93c26daee6e92cdf833ce458a42"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZIA3RO555P3LCCGN4YATMGDFN2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effects of Hexagonal Boron Nitride Encapsulation on the Electronic Structure of Few-layer MoS$_2$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Ding Pan, Jiangxiazi Lin, Junwei Liu, Ning Wang, Xu Han","submitted_at":"2019-05-14T10:09:41Z","abstract_excerpt":"The hexagonal boron nitride (hBN) encapsulation has been widely used in the electronics applications of 2D materials to improve device performance by protecting 2D materials against contamination and degradation. It is often assumed that hBN layers as a dielectric would not affect the electronic structure of encapsulated 2D materials. Here we studied few-layer MoS$_2$ encapsulated in hBN flakes by using a combination of theoretical and experimental Raman spectroscopy. We found that after the encapsulation the out-of-plane A$_{1g}$ mode is upshifted, while the in-plane E$_{2g}^1$ mode is downsh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.05493","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":"2026-05-17T23:43:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WO1AZDuGOSoHjgPZTztwrExdTldaTJSeStC06W/uCMIAhEC34BSSWjBaxSAKqBbKvvYxxTribtwBl5Yu4reBDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T00:12:12.089168Z"},"content_sha256":"abb1585c35e882da1e05e8ef998007118e8c4e6b294ca2db634ae33edaf91e6a","schema_version":"1.0","event_id":"sha256:abb1585c35e882da1e05e8ef998007118e8c4e6b294ca2db634ae33edaf91e6a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZIA3RO555P3LCCGN4YATMGDFN2/bundle.json","state_url":"https://pith.science/pith/ZIA3RO555P3LCCGN4YATMGDFN2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZIA3RO555P3LCCGN4YATMGDFN2/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":"2026-06-05T00:12:12Z","links":{"resolver":"https://pith.science/pith/ZIA3RO555P3LCCGN4YATMGDFN2","bundle":"https://pith.science/pith/ZIA3RO555P3LCCGN4YATMGDFN2/bundle.json","state":"https://pith.science/pith/ZIA3RO555P3LCCGN4YATMGDFN2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZIA3RO555P3LCCGN4YATMGDFN2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZIA3RO555P3LCCGN4YATMGDFN2","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":"0d1a75a7f41ffed37b9b853720ae17129ea118f15b54eca00f98a75a7f987330","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-14T10:09:41Z","title_canon_sha256":"7444adfd98aeaf2103e4fcaf2a6219d2c74896ea8217dc3864ce87279c30403f"},"schema_version":"1.0","source":{"id":"1905.05493","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.05493","created_at":"2026-05-17T23:43:14Z"},{"alias_kind":"arxiv_version","alias_value":"1905.05493v2","created_at":"2026-05-17T23:43:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.05493","created_at":"2026-05-17T23:43:14Z"},{"alias_kind":"pith_short_12","alias_value":"ZIA3RO555P3L","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZIA3RO555P3LCCGN","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZIA3RO55","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:abb1585c35e882da1e05e8ef998007118e8c4e6b294ca2db634ae33edaf91e6a","target":"graph","created_at":"2026-05-17T23:43:14Z","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 hexagonal boron nitride (hBN) encapsulation has been widely used in the electronics applications of 2D materials to improve device performance by protecting 2D materials against contamination and degradation. It is often assumed that hBN layers as a dielectric would not affect the electronic structure of encapsulated 2D materials. Here we studied few-layer MoS$_2$ encapsulated in hBN flakes by using a combination of theoretical and experimental Raman spectroscopy. We found that after the encapsulation the out-of-plane A$_{1g}$ mode is upshifted, while the in-plane E$_{2g}^1$ mode is downsh","authors_text":"Ding Pan, Jiangxiazi Lin, Junwei Liu, Ning Wang, Xu Han","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-14T10:09:41Z","title":"Effects of Hexagonal Boron Nitride Encapsulation on the Electronic Structure of Few-layer MoS$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.05493","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:bcf4428c17ddfcf895f3b44c8a65cfe592e1f93c26daee6e92cdf833ce458a42","target":"record","created_at":"2026-05-17T23:43:14Z","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":"0d1a75a7f41ffed37b9b853720ae17129ea118f15b54eca00f98a75a7f987330","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-14T10:09:41Z","title_canon_sha256":"7444adfd98aeaf2103e4fcaf2a6219d2c74896ea8217dc3864ce87279c30403f"},"schema_version":"1.0","source":{"id":"1905.05493","kind":"arxiv","version":2}},"canonical_sha256":"ca01b8bbbdebf6b108cde6013618656eb942007db67f99582b086cd0af93b072","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca01b8bbbdebf6b108cde6013618656eb942007db67f99582b086cd0af93b072","first_computed_at":"2026-05-17T23:43:14.379080Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:14.379080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SkruBL/z5I6nWmPkSeMpsDeyeRZEcHuBkDCQijqedKXhmcIRaFfXTF+VHrm/9ZKuL8AU24KIBcpnpr3TNYRLCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:14.379649Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.05493","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bcf4428c17ddfcf895f3b44c8a65cfe592e1f93c26daee6e92cdf833ce458a42","sha256:abb1585c35e882da1e05e8ef998007118e8c4e6b294ca2db634ae33edaf91e6a"],"state_sha256":"6aab9e0333d914e6f7bed4a49d6d7dc203cad19dbb91e32ec71774a0d61bc805"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7PpOzQq8EZhzPxdZATiYs9LMN+eXEaHVEFc8JGcNSzSv8erzaAqcbeuGaVKBAnE8YmE62q+GqJTPLYcJ/t1fDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T00:12:12.091450Z","bundle_sha256":"2e77243df31fd4b217152d13a2b0f0f8472daedd89b354d3a366431dab3a5b7d"}}