{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ASPNC54A435BBYKW4C4FEP5NNR","short_pith_number":"pith:ASPNC54A","canonical_record":{"source":{"id":"1810.00561","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-01T07:35:32Z","cross_cats_sorted":[],"title_canon_sha256":"a5b01443524a9f85007f4eb0931d2e0985f8dcec93f5e9d477d082bab7158457","abstract_canon_sha256":"7f170732176526c6ba9b8dbb5702d1cd4720c613765fc1ad8375b213fbffeb1f"},"schema_version":"1.0"},"canonical_sha256":"049ed17780e6fa10e156e0b8523fad6c49cb2263472ec8c36ba906e68420dedf","source":{"kind":"arxiv","id":"1810.00561","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.00561","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"arxiv_version","alias_value":"1810.00561v1","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.00561","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"pith_short_12","alias_value":"ASPNC54A435B","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ASPNC54A435BBYKW","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ASPNC54A","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ASPNC54A435BBYKW4C4FEP5NNR","target":"record","payload":{"canonical_record":{"source":{"id":"1810.00561","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-01T07:35:32Z","cross_cats_sorted":[],"title_canon_sha256":"a5b01443524a9f85007f4eb0931d2e0985f8dcec93f5e9d477d082bab7158457","abstract_canon_sha256":"7f170732176526c6ba9b8dbb5702d1cd4720c613765fc1ad8375b213fbffeb1f"},"schema_version":"1.0"},"canonical_sha256":"049ed17780e6fa10e156e0b8523fad6c49cb2263472ec8c36ba906e68420dedf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:25.415257Z","signature_b64":"bsUl65fJXTr7rbOiAMVRPSadtNFR7V/JkyyKOIeQ+lSoz2WOmaDgoHmLvnblRUBh9RPBpVwb1wYzCqFdbTMJAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"049ed17780e6fa10e156e0b8523fad6c49cb2263472ec8c36ba906e68420dedf","last_reissued_at":"2026-05-18T00:04:25.414807Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:25.414807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.00561","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":"2026-05-18T00:04:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sot/N5z6oJPxw5chlj93sPyXP9HnElC8Ixvud2hXzljWHbgMj/GULdKUht7FJDc2FjjP2uIJWADReNO7VIzjDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:23:32.491088Z"},"content_sha256":"88306757d69162eeae0ccfabbda4279fc4037e857c61b7875e601f0ac5d25ac3","schema_version":"1.0","event_id":"sha256:88306757d69162eeae0ccfabbda4279fc4037e857c61b7875e601f0ac5d25ac3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ASPNC54A435BBYKW4C4FEP5NNR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient Charge Separation in 2D Janus van der Waals Structures with Build-in Electric Fields and Intrinsic p-n Doping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Anders C. Riis-Jensen, Kristian S. Thygesen, Mohnish Pandey","submitted_at":"2018-10-01T07:35:32Z","abstract_excerpt":"Janus MoSSe monolayers were recently synthesised by replacing S by Se on one side of MoS$_2$ (or vice versa for MoSe$_2$). Due to the different electronegativity of S and Se these structures carry a finite out-of-plane dipole moment. As we show here by means of density functional theory (DFT) calculations, this intrinsic dipole leads to the formation of built-in electric fields when the monolayers are stacked to form $N$-layer structures. For sufficiently thin structures ($N<4$) the dipoles add up and shift the vacuum level on the two sides of the film by $\\sim N \\cdot 0.7$ eV. However, for th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.00561","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":"2026-05-18T00:04:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nfaU0ghmGfyt00RhV+IbOeUhaGdIwT/wvk7qnBJS3aAWD07O7TBTHusz3yIfqR6YvAdEuarXKV1MNtsOlAMFAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:23:32.491782Z"},"content_sha256":"c0a9b4f55edbd1eb2601cd569a6570269fe2b4b44622fccacc91c98364b827a0","schema_version":"1.0","event_id":"sha256:c0a9b4f55edbd1eb2601cd569a6570269fe2b4b44622fccacc91c98364b827a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ASPNC54A435BBYKW4C4FEP5NNR/bundle.json","state_url":"https://pith.science/pith/ASPNC54A435BBYKW4C4FEP5NNR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ASPNC54A435BBYKW4C4FEP5NNR/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":"2026-05-26T01:23:32Z","links":{"resolver":"https://pith.science/pith/ASPNC54A435BBYKW4C4FEP5NNR","bundle":"https://pith.science/pith/ASPNC54A435BBYKW4C4FEP5NNR/bundle.json","state":"https://pith.science/pith/ASPNC54A435BBYKW4C4FEP5NNR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ASPNC54A435BBYKW4C4FEP5NNR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ASPNC54A435BBYKW4C4FEP5NNR","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":"7f170732176526c6ba9b8dbb5702d1cd4720c613765fc1ad8375b213fbffeb1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-01T07:35:32Z","title_canon_sha256":"a5b01443524a9f85007f4eb0931d2e0985f8dcec93f5e9d477d082bab7158457"},"schema_version":"1.0","source":{"id":"1810.00561","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.00561","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"arxiv_version","alias_value":"1810.00561v1","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.00561","created_at":"2026-05-18T00:04:25Z"},{"alias_kind":"pith_short_12","alias_value":"ASPNC54A435B","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ASPNC54A435BBYKW","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ASPNC54A","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:c0a9b4f55edbd1eb2601cd569a6570269fe2b4b44622fccacc91c98364b827a0","target":"graph","created_at":"2026-05-18T00:04:25Z","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":"Janus MoSSe monolayers were recently synthesised by replacing S by Se on one side of MoS$_2$ (or vice versa for MoSe$_2$). Due to the different electronegativity of S and Se these structures carry a finite out-of-plane dipole moment. As we show here by means of density functional theory (DFT) calculations, this intrinsic dipole leads to the formation of built-in electric fields when the monolayers are stacked to form $N$-layer structures. For sufficiently thin structures ($N<4$) the dipoles add up and shift the vacuum level on the two sides of the film by $\\sim N \\cdot 0.7$ eV. However, for th","authors_text":"Anders C. Riis-Jensen, Kristian S. Thygesen, Mohnish Pandey","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-01T07:35:32Z","title":"Efficient Charge Separation in 2D Janus van der Waals Structures with Build-in Electric Fields and Intrinsic p-n Doping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.00561","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":"sha256:88306757d69162eeae0ccfabbda4279fc4037e857c61b7875e601f0ac5d25ac3","target":"record","created_at":"2026-05-18T00:04:25Z","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":"7f170732176526c6ba9b8dbb5702d1cd4720c613765fc1ad8375b213fbffeb1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-01T07:35:32Z","title_canon_sha256":"a5b01443524a9f85007f4eb0931d2e0985f8dcec93f5e9d477d082bab7158457"},"schema_version":"1.0","source":{"id":"1810.00561","kind":"arxiv","version":1}},"canonical_sha256":"049ed17780e6fa10e156e0b8523fad6c49cb2263472ec8c36ba906e68420dedf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"049ed17780e6fa10e156e0b8523fad6c49cb2263472ec8c36ba906e68420dedf","first_computed_at":"2026-05-18T00:04:25.414807Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:25.414807Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bsUl65fJXTr7rbOiAMVRPSadtNFR7V/JkyyKOIeQ+lSoz2WOmaDgoHmLvnblRUBh9RPBpVwb1wYzCqFdbTMJAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:25.415257Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.00561","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:88306757d69162eeae0ccfabbda4279fc4037e857c61b7875e601f0ac5d25ac3","sha256:c0a9b4f55edbd1eb2601cd569a6570269fe2b4b44622fccacc91c98364b827a0"],"state_sha256":"a66bff4f113629f40a527c50095f22dae15f678029e5573a06586f2f5204b03e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NsUNO2fzPrseHKftSWMgPFB1irz6kRPLNvb/0/2FD/1rDUwJJAAAbzWlZeuoZ+454n+FMXiLrSGadmPWipZAAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T01:23:32.495818Z","bundle_sha256":"0a6be54edb268f7bdf3fee70a84bf246ecd8be2465087e4a6744632ca1798605"}}