{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:J6KP6NUZWKPAN6BNVVZW5YHHFE","short_pith_number":"pith:J6KP6NUZ","canonical_record":{"source":{"id":"1806.05560","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-14T14:04:04Z","cross_cats_sorted":[],"title_canon_sha256":"15dc08caedfa76b833f842fb7a1ad2eda8b864f096d7aec384854614490c6e00","abstract_canon_sha256":"a974bce9e5fb5e419521bf44c61e9bdf4834fb87c2727d72d8110b3f93f15198"},"schema_version":"1.0"},"canonical_sha256":"4f94ff3699b29e06f82dad736ee0e729373d0d47b0a68844420f93f165b294f7","source":{"kind":"arxiv","id":"1806.05560","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05560","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05560v2","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05560","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"pith_short_12","alias_value":"J6KP6NUZWKPA","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"J6KP6NUZWKPAN6BN","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"J6KP6NUZ","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:J6KP6NUZWKPAN6BNVVZW5YHHFE","target":"record","payload":{"canonical_record":{"source":{"id":"1806.05560","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-14T14:04:04Z","cross_cats_sorted":[],"title_canon_sha256":"15dc08caedfa76b833f842fb7a1ad2eda8b864f096d7aec384854614490c6e00","abstract_canon_sha256":"a974bce9e5fb5e419521bf44c61e9bdf4834fb87c2727d72d8110b3f93f15198"},"schema_version":"1.0"},"canonical_sha256":"4f94ff3699b29e06f82dad736ee0e729373d0d47b0a68844420f93f165b294f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:36.811644Z","signature_b64":"E4MdBG+qeh3hUKb/79M5f/czjwvvmY6Ddwupp+JHocUtf8l17/js+70gW8/cFYsImuKLBT2Q35SqStKsB+ElDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f94ff3699b29e06f82dad736ee0e729373d0d47b0a68844420f93f165b294f7","last_reissued_at":"2026-05-18T00:03:36.810979Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:36.810979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.05560","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":"2026-05-18T00:03:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pcaisALCajz6i27F1Uoto+YU6VQEi4QF/FSYNXbafgyppAKLNJq6r0qjIipTXaEtnCFPuUNEtTquQRK4LpWPCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:29:42.881777Z"},"content_sha256":"409fe7e1d1f10add0ca3a0a770bdd51874a68e1632ead064d40394c7fcf883b7","schema_version":"1.0","event_id":"sha256:409fe7e1d1f10add0ca3a0a770bdd51874a68e1632ead064d40394c7fcf883b7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:J6KP6NUZWKPAN6BNVVZW5YHHFE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multi-scale model for the structure of hybrid perovskites: Analysis of charge migration in disordered MAPbI$_3$ structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"2), (2) Department of Physics, Aalto University, Jari J\\\"arvi (1, Jingrui Li (1), Patrick Rinke (1) ((1) Department of Applied Physics, University of Helsinki)","submitted_at":"2018-06-14T14:04:04Z","abstract_excerpt":"We have developed a multi-scale model for organic-inorganic hybrid perovskites (HPs) that applies quantum mechanical (QM) calculations of small HP supercell models to large coarse-grained structures. With a mixed quantum-classical hopping model, we have studied the effects of cation disorder on charge mobilities in HPs, which is a key feature to optimize their photovoltaic performance. Our multi-scale model parametrizes the interaction between neighboring methylammonium cations (MA$^+$) in the prototypical HP material, methylammonium lead triiodide (CH$_3$NH$_3$PbI$_3$, or MAPbI$_3$). For the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05560","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":"2026-05-18T00:03:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E4ac1j6SXm2X7O/NBgoIbVOloCoU80U/pO7pqQMYfzahTO1jKVtJ7CMAyb5htIXElMqqvxPgiPqH/Kt36qOUBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T00:29:42.882136Z"},"content_sha256":"c99b8bbacaeece6f3a5e754182cb5f06835b88dc42edd1994f14a2468bcb3b2a","schema_version":"1.0","event_id":"sha256:c99b8bbacaeece6f3a5e754182cb5f06835b88dc42edd1994f14a2468bcb3b2a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J6KP6NUZWKPAN6BNVVZW5YHHFE/bundle.json","state_url":"https://pith.science/pith/J6KP6NUZWKPAN6BNVVZW5YHHFE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J6KP6NUZWKPAN6BNVVZW5YHHFE/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":"2026-06-03T00:29:42Z","links":{"resolver":"https://pith.science/pith/J6KP6NUZWKPAN6BNVVZW5YHHFE","bundle":"https://pith.science/pith/J6KP6NUZWKPAN6BNVVZW5YHHFE/bundle.json","state":"https://pith.science/pith/J6KP6NUZWKPAN6BNVVZW5YHHFE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J6KP6NUZWKPAN6BNVVZW5YHHFE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:J6KP6NUZWKPAN6BNVVZW5YHHFE","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":"a974bce9e5fb5e419521bf44c61e9bdf4834fb87c2727d72d8110b3f93f15198","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-14T14:04:04Z","title_canon_sha256":"15dc08caedfa76b833f842fb7a1ad2eda8b864f096d7aec384854614490c6e00"},"schema_version":"1.0","source":{"id":"1806.05560","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.05560","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"arxiv_version","alias_value":"1806.05560v2","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.05560","created_at":"2026-05-18T00:03:36Z"},{"alias_kind":"pith_short_12","alias_value":"J6KP6NUZWKPA","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"J6KP6NUZWKPAN6BN","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"J6KP6NUZ","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:c99b8bbacaeece6f3a5e754182cb5f06835b88dc42edd1994f14a2468bcb3b2a","target":"graph","created_at":"2026-05-18T00:03:36Z","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":"We have developed a multi-scale model for organic-inorganic hybrid perovskites (HPs) that applies quantum mechanical (QM) calculations of small HP supercell models to large coarse-grained structures. With a mixed quantum-classical hopping model, we have studied the effects of cation disorder on charge mobilities in HPs, which is a key feature to optimize their photovoltaic performance. Our multi-scale model parametrizes the interaction between neighboring methylammonium cations (MA$^+$) in the prototypical HP material, methylammonium lead triiodide (CH$_3$NH$_3$PbI$_3$, or MAPbI$_3$). For the ","authors_text":"2), (2) Department of Physics, Aalto University, Jari J\\\"arvi (1, Jingrui Li (1), Patrick Rinke (1) ((1) Department of Applied Physics, University of Helsinki)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-14T14:04:04Z","title":"Multi-scale model for the structure of hybrid perovskites: Analysis of charge migration in disordered MAPbI$_3$ structures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.05560","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":"sha256:409fe7e1d1f10add0ca3a0a770bdd51874a68e1632ead064d40394c7fcf883b7","target":"record","created_at":"2026-05-18T00:03:36Z","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":"a974bce9e5fb5e419521bf44c61e9bdf4834fb87c2727d72d8110b3f93f15198","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-06-14T14:04:04Z","title_canon_sha256":"15dc08caedfa76b833f842fb7a1ad2eda8b864f096d7aec384854614490c6e00"},"schema_version":"1.0","source":{"id":"1806.05560","kind":"arxiv","version":2}},"canonical_sha256":"4f94ff3699b29e06f82dad736ee0e729373d0d47b0a68844420f93f165b294f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f94ff3699b29e06f82dad736ee0e729373d0d47b0a68844420f93f165b294f7","first_computed_at":"2026-05-18T00:03:36.810979Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:36.810979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E4MdBG+qeh3hUKb/79M5f/czjwvvmY6Ddwupp+JHocUtf8l17/js+70gW8/cFYsImuKLBT2Q35SqStKsB+ElDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:36.811644Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.05560","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:409fe7e1d1f10add0ca3a0a770bdd51874a68e1632ead064d40394c7fcf883b7","sha256:c99b8bbacaeece6f3a5e754182cb5f06835b88dc42edd1994f14a2468bcb3b2a"],"state_sha256":"a224b33712dec904c941d112f4b939b1f5402ad8d24a683a721ac430d95e3ada"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GdQWSf8hggjr9LVHK3MgVj7/iGr3s/nwPdKJRoASpYRt98e7gVBxU6TMKbJxr0wSz3LqcsxPBf8hmFSu1KeaDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T00:29:42.884161Z","bundle_sha256":"d6ee130c2fee9a661aaca0a136f7e2b093fcfa3ea7f93ee00f092bcac5e905aa"}}