{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:TG6QWG7HOAJEOHSIKGTCH262AA","short_pith_number":"pith:TG6QWG7H","canonical_record":{"source":{"id":"1905.11354","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-27T17:32:44Z","cross_cats_sorted":[],"title_canon_sha256":"64cc4cee343e31bbb128b98f46f72f5095a063d69423e172f0c78e8dd27b29c7","abstract_canon_sha256":"43f411e3ea91ecbf3319d2d558ca79902c5a9acf5a7935ec88733fbd6a3b76c8"},"schema_version":"1.0"},"canonical_sha256":"99bd0b1be77012471e4851a623ebda00297fa4f44a0e292a64df0e987f6b3459","source":{"kind":"arxiv","id":"1905.11354","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.11354","created_at":"2026-05-17T23:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"1905.11354v2","created_at":"2026-05-17T23:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.11354","created_at":"2026-05-17T23:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"TG6QWG7HOAJE","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"TG6QWG7HOAJEOHSI","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"TG6QWG7H","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:TG6QWG7HOAJEOHSIKGTCH262AA","target":"record","payload":{"canonical_record":{"source":{"id":"1905.11354","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-27T17:32:44Z","cross_cats_sorted":[],"title_canon_sha256":"64cc4cee343e31bbb128b98f46f72f5095a063d69423e172f0c78e8dd27b29c7","abstract_canon_sha256":"43f411e3ea91ecbf3319d2d558ca79902c5a9acf5a7935ec88733fbd6a3b76c8"},"schema_version":"1.0"},"canonical_sha256":"99bd0b1be77012471e4851a623ebda00297fa4f44a0e292a64df0e987f6b3459","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:13.419328Z","signature_b64":"eFZWj0dl8lk/qHGS5HQIYZmppy3mbWggrnHFUXNW4LDJ2BktxdIAzG2JS/BBwdvBe+nyCd04EGRvrzEGwtcDAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99bd0b1be77012471e4851a623ebda00297fa4f44a0e292a64df0e987f6b3459","last_reissued_at":"2026-05-17T23:42:13.418894Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:13.418894Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.11354","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":"2026-05-17T23:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4035DrtMWpUSL865zCB/FEObPHfHURjfgLHYqg0VnyJfpkWtN4mPoKG3899NoqMc9KaMv2FsdbmJN3WtURi1Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:10:26.789136Z"},"content_sha256":"b90ddf0f2bf49eecc6d4482255cb5eba54b168b3f89f4650d36ce954ec7e8c78","schema_version":"1.0","event_id":"sha256:b90ddf0f2bf49eecc6d4482255cb5eba54b168b3f89f4650d36ce954ec7e8c78"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:TG6QWG7HOAJEOHSIKGTCH262AA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stacking, Strain, & Twist in 2D Materials Quantified by 3D Electron Diffraction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Jiwoong Park, Lola Brown, Noah Schnitzer, Robert Hovden, Suk Hyun Sung","submitted_at":"2019-05-27T17:32:44Z","abstract_excerpt":"The field of two-dimensional (2D) materials has expanded to multilayered systems where electronic, optical, and mechanical properties change-often dramatically-with stacking order, thickness, twist, and interlayer spacing [1-5]. For transition metal dichalcogenides (TMDs), bond coordination within a single van der Waals layer changes the out-of-plane symmetry that can cause metal-insulator transitions [1, 6] or emergent quantum behavior [7]. Discerning these structural order parameters is often difficult using real-space measurements, however, we show 2D materials have distinct, conspicuous th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.11354","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":"2026-05-17T23:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eW0b9ZdBnnEdwpXCRdfPyGvCoo8lEUCsoUjoDO1AAb+BSXFYil8sPHhjWlxyLSWVemvl3CmCznZsE/NAEufbAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:10:26.789672Z"},"content_sha256":"75ec528b6a0334a353d05d3272a5f095985ee6474e30079c3c22eba18bb3d856","schema_version":"1.0","event_id":"sha256:75ec528b6a0334a353d05d3272a5f095985ee6474e30079c3c22eba18bb3d856"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TG6QWG7HOAJEOHSIKGTCH262AA/bundle.json","state_url":"https://pith.science/pith/TG6QWG7HOAJEOHSIKGTCH262AA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TG6QWG7HOAJEOHSIKGTCH262AA/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":"2026-05-26T16:10:26Z","links":{"resolver":"https://pith.science/pith/TG6QWG7HOAJEOHSIKGTCH262AA","bundle":"https://pith.science/pith/TG6QWG7HOAJEOHSIKGTCH262AA/bundle.json","state":"https://pith.science/pith/TG6QWG7HOAJEOHSIKGTCH262AA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TG6QWG7HOAJEOHSIKGTCH262AA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TG6QWG7HOAJEOHSIKGTCH262AA","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":"43f411e3ea91ecbf3319d2d558ca79902c5a9acf5a7935ec88733fbd6a3b76c8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-27T17:32:44Z","title_canon_sha256":"64cc4cee343e31bbb128b98f46f72f5095a063d69423e172f0c78e8dd27b29c7"},"schema_version":"1.0","source":{"id":"1905.11354","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.11354","created_at":"2026-05-17T23:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"1905.11354v2","created_at":"2026-05-17T23:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.11354","created_at":"2026-05-17T23:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"TG6QWG7HOAJE","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"TG6QWG7HOAJEOHSI","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"TG6QWG7H","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:75ec528b6a0334a353d05d3272a5f095985ee6474e30079c3c22eba18bb3d856","target":"graph","created_at":"2026-05-17T23:42:13Z","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 field of two-dimensional (2D) materials has expanded to multilayered systems where electronic, optical, and mechanical properties change-often dramatically-with stacking order, thickness, twist, and interlayer spacing [1-5]. For transition metal dichalcogenides (TMDs), bond coordination within a single van der Waals layer changes the out-of-plane symmetry that can cause metal-insulator transitions [1, 6] or emergent quantum behavior [7]. Discerning these structural order parameters is often difficult using real-space measurements, however, we show 2D materials have distinct, conspicuous th","authors_text":"Jiwoong Park, Lola Brown, Noah Schnitzer, Robert Hovden, Suk Hyun Sung","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-27T17:32:44Z","title":"Stacking, Strain, & Twist in 2D Materials Quantified by 3D Electron Diffraction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.11354","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:b90ddf0f2bf49eecc6d4482255cb5eba54b168b3f89f4650d36ce954ec7e8c78","target":"record","created_at":"2026-05-17T23:42:13Z","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":"43f411e3ea91ecbf3319d2d558ca79902c5a9acf5a7935ec88733fbd6a3b76c8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-05-27T17:32:44Z","title_canon_sha256":"64cc4cee343e31bbb128b98f46f72f5095a063d69423e172f0c78e8dd27b29c7"},"schema_version":"1.0","source":{"id":"1905.11354","kind":"arxiv","version":2}},"canonical_sha256":"99bd0b1be77012471e4851a623ebda00297fa4f44a0e292a64df0e987f6b3459","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99bd0b1be77012471e4851a623ebda00297fa4f44a0e292a64df0e987f6b3459","first_computed_at":"2026-05-17T23:42:13.418894Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:13.418894Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eFZWj0dl8lk/qHGS5HQIYZmppy3mbWggrnHFUXNW4LDJ2BktxdIAzG2JS/BBwdvBe+nyCd04EGRvrzEGwtcDAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:13.419328Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.11354","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b90ddf0f2bf49eecc6d4482255cb5eba54b168b3f89f4650d36ce954ec7e8c78","sha256:75ec528b6a0334a353d05d3272a5f095985ee6474e30079c3c22eba18bb3d856"],"state_sha256":"d46af6fac7fb8253a94f6d14d85a0bdeab19618fb16f5222a1ace1ea0d30fc13"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ESHfeJJ7BFy7gbbih/k/L1VLnaXn7aWnwvEACAnSk7lTNSmwDuEUuhptToCJ6lm+7E7F4Rp2hVS6W+n0tUnMBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T16:10:26.793267Z","bundle_sha256":"2fe87789406e9dac586a48a4defcb3b78d4d9f2f47563bb655deb5f6101d388c"}}