{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ZRBTKVXWBT7VCEZVZFFYBLP7BJ","short_pith_number":"pith:ZRBTKVXW","canonical_record":{"source":{"id":"1806.05027","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-13T13:33:25Z","cross_cats_sorted":[],"title_canon_sha256":"8c79e05f500eab2ab561e6ab453691f516d86d0e150fadd1fc5417e3a8b8fa09","abstract_canon_sha256":"79bfcfdcc25ec7343458b31b1f2e8e99949e7cfd40f070c3567e410b44fa5fe6"},"schema_version":"1.0"},"canonical_sha256":"cc433556f60cff511335c94b80adff0a7fafe0b53dbb35e4fffd2c7fec9f90bf","source":{"kind":"arxiv","id":"1806.05027","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05027","created_at":"2026-05-18T00:13:20Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05027v1","created_at":"2026-05-18T00:13:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05027","created_at":"2026-05-18T00:13:20Z"},{"alias_kind":"pith_short_12","alias_value":"ZRBTKVXWBT7V","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"ZRBTKVXWBT7VCEZV","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"ZRBTKVXW","created_at":"2026-05-18T12:33:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ZRBTKVXWBT7VCEZVZFFYBLP7BJ","target":"record","payload":{"canonical_record":{"source":{"id":"1806.05027","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-13T13:33:25Z","cross_cats_sorted":[],"title_canon_sha256":"8c79e05f500eab2ab561e6ab453691f516d86d0e150fadd1fc5417e3a8b8fa09","abstract_canon_sha256":"79bfcfdcc25ec7343458b31b1f2e8e99949e7cfd40f070c3567e410b44fa5fe6"},"schema_version":"1.0"},"canonical_sha256":"cc433556f60cff511335c94b80adff0a7fafe0b53dbb35e4fffd2c7fec9f90bf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:13:20.318797Z","signature_b64":"bShtcfL5jEierZdfi11RcGMEy9xTlNrAF2PppQc+38KdTvxhnyxrSEovv9hO5RsoSUP5ODxEt2orfvHcW1zPAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc433556f60cff511335c94b80adff0a7fafe0b53dbb35e4fffd2c7fec9f90bf","last_reissued_at":"2026-05-18T00:13:20.318255Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:13:20.318255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.05027","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":"2026-05-18T00:13:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"46r/P0y8DkCpnbqAvnyfp8PfA6sknrO0ecrn5RkcMJC+E+xtEph0IQqZErxgejC0/aZqMPH8iR74VtOP0625Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:56:51.689384Z"},"content_sha256":"850c690f72e8a2ddd48d7a6de82307e4a59dd924c83902a2f105b6953d4a5413","schema_version":"1.0","event_id":"sha256:850c690f72e8a2ddd48d7a6de82307e4a59dd924c83902a2f105b6953d4a5413"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ZRBTKVXWBT7VCEZVZFFYBLP7BJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct Measurement of the Magnitude of van der Waals interaction of Single and Multilayer Graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Cheng Hsiang Chiu, Chia-Yun Lai, Harry Apostoleris, Ibraheem Almansouri, Jin-You Lu, Mariam Ali Almahri, Matteo Chiesa, Sergio Santos, Tuza Adeyemi Olukan, Yu-Cheng Chiou","submitted_at":"2018-06-13T13:33:25Z","abstract_excerpt":"Vertical stacking of monolayers via van der Waals assembly is an emerging field that opens promising routes toward engineering physical properties of two-dimensional (2D) materials. Industrial exploitation of these engineering heterostructures as robust functional materials still requires bounding their measured properties so to enhance theoretical tractability and assist in experimental designs. Specifically, the short-range attractive van der Waals forces are responsible for the adhesion of chemically inert components and are recognized to play a dominant role in the functionality of these s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05027","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":"2026-05-18T00:13:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RWkTRCNQNlr4cyP1MC5nWVgebBNtIZlkQBi5VYillV6O1thFrgVXx5vUYlkzfHvqvTgOzm5CgGjiUDZ4LC4ZAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T01:56:51.690023Z"},"content_sha256":"7aefe7396b669fd1aaefeb60eea5af7f30216dba91043372c4f00eef5034ba38","schema_version":"1.0","event_id":"sha256:7aefe7396b669fd1aaefeb60eea5af7f30216dba91043372c4f00eef5034ba38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZRBTKVXWBT7VCEZVZFFYBLP7BJ/bundle.json","state_url":"https://pith.science/pith/ZRBTKVXWBT7VCEZVZFFYBLP7BJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZRBTKVXWBT7VCEZVZFFYBLP7BJ/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":"2026-05-27T01:56:51Z","links":{"resolver":"https://pith.science/pith/ZRBTKVXWBT7VCEZVZFFYBLP7BJ","bundle":"https://pith.science/pith/ZRBTKVXWBT7VCEZVZFFYBLP7BJ/bundle.json","state":"https://pith.science/pith/ZRBTKVXWBT7VCEZVZFFYBLP7BJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZRBTKVXWBT7VCEZVZFFYBLP7BJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ZRBTKVXWBT7VCEZVZFFYBLP7BJ","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":"79bfcfdcc25ec7343458b31b1f2e8e99949e7cfd40f070c3567e410b44fa5fe6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-13T13:33:25Z","title_canon_sha256":"8c79e05f500eab2ab561e6ab453691f516d86d0e150fadd1fc5417e3a8b8fa09"},"schema_version":"1.0","source":{"id":"1806.05027","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05027","created_at":"2026-05-18T00:13:20Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05027v1","created_at":"2026-05-18T00:13:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05027","created_at":"2026-05-18T00:13:20Z"},{"alias_kind":"pith_short_12","alias_value":"ZRBTKVXWBT7V","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"ZRBTKVXWBT7VCEZV","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"ZRBTKVXW","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:7aefe7396b669fd1aaefeb60eea5af7f30216dba91043372c4f00eef5034ba38","target":"graph","created_at":"2026-05-18T00:13:20Z","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":"Vertical stacking of monolayers via van der Waals assembly is an emerging field that opens promising routes toward engineering physical properties of two-dimensional (2D) materials. Industrial exploitation of these engineering heterostructures as robust functional materials still requires bounding their measured properties so to enhance theoretical tractability and assist in experimental designs. Specifically, the short-range attractive van der Waals forces are responsible for the adhesion of chemically inert components and are recognized to play a dominant role in the functionality of these s","authors_text":"Cheng Hsiang Chiu, Chia-Yun Lai, Harry Apostoleris, Ibraheem Almansouri, Jin-You Lu, Mariam Ali Almahri, Matteo Chiesa, Sergio Santos, Tuza Adeyemi Olukan, Yu-Cheng Chiou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-13T13:33:25Z","title":"Direct Measurement of the Magnitude of van der Waals interaction of Single and Multilayer Graphene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05027","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":"sha256:850c690f72e8a2ddd48d7a6de82307e4a59dd924c83902a2f105b6953d4a5413","target":"record","created_at":"2026-05-18T00:13:20Z","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":"79bfcfdcc25ec7343458b31b1f2e8e99949e7cfd40f070c3567e410b44fa5fe6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-13T13:33:25Z","title_canon_sha256":"8c79e05f500eab2ab561e6ab453691f516d86d0e150fadd1fc5417e3a8b8fa09"},"schema_version":"1.0","source":{"id":"1806.05027","kind":"arxiv","version":1}},"canonical_sha256":"cc433556f60cff511335c94b80adff0a7fafe0b53dbb35e4fffd2c7fec9f90bf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc433556f60cff511335c94b80adff0a7fafe0b53dbb35e4fffd2c7fec9f90bf","first_computed_at":"2026-05-18T00:13:20.318255Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:20.318255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bShtcfL5jEierZdfi11RcGMEy9xTlNrAF2PppQc+38KdTvxhnyxrSEovv9hO5RsoSUP5ODxEt2orfvHcW1zPAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:20.318797Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.05027","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:850c690f72e8a2ddd48d7a6de82307e4a59dd924c83902a2f105b6953d4a5413","sha256:7aefe7396b669fd1aaefeb60eea5af7f30216dba91043372c4f00eef5034ba38"],"state_sha256":"f523e05dc9e50b1e0a1f1a568a5ef383d9cdb9bb3f7fb86274bd354a56873418"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5warZyyOE/gUawtt/MGJIJnNElJD5A4/II3/RfcyKbRsoOH981i/s9wpZeEIFDHrXC+YKW02PaOCqj7sl+byAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T01:56:51.693786Z","bundle_sha256":"d9c0040dfe657c77ea06b37ea5f924e70594c730b7c038172bc58146824aba7e"}}