{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:W6T2LEDW7DYQY2V37QBLOF66JZ","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":"a70d37342eadaac4abf38011b253b06b02c8fd85f341c4fa80777c3bf4e844d9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-10T16:12:40Z","title_canon_sha256":"ff585003a49b76bbe3803b5aa0cbc0792e0ac6cd464393dc85dc9513da69c46d"},"schema_version":"1.0","source":{"id":"1702.03233","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.03233","created_at":"2026-05-18T00:40:46Z"},{"alias_kind":"arxiv_version","alias_value":"1702.03233v2","created_at":"2026-05-18T00:40:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.03233","created_at":"2026-05-18T00:40:46Z"},{"alias_kind":"pith_short_12","alias_value":"W6T2LEDW7DYQ","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"W6T2LEDW7DYQY2V3","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"W6T2LEDW","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:6dc9391d16ca97576cc00c3a40b2cedd924f07e37896c7c56fb41e69cf61da2f","target":"graph","created_at":"2026-05-18T00:40:46Z","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":"Hybrid halide perovskites are currently under intense investigation due to their potential applications in optoelectronics and solar cells. Among them, MAPbI$_3$ where MA stands for the methylammonium cation, exhibits ideal properties for solar cells. In attempt to identify new lead-free halide perovskites we have studied using \\textit{ab-initio} electronic structure calculations in conjunction with hybrid functionals a series of MABX$_3$ compounds where B is a divalent cation and X a halogen atom. Our results suggest that the compounds under study exhibit a variety of lattice constants and en","authors_text":"A. Koliogiorgos, I. Galanakis, S. Baskoutas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-10T16:12:40Z","title":"Electronic and gap properties of lead-free perfect and mixed hybrid halide perovskites: An \\textit{ab-initio} study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.03233","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":"sha256:7870a40554fb7fcab0268867aa8a4b996c6166547ddacf9e30d15fc369d46c99","target":"record","created_at":"2026-05-18T00:40:46Z","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":"a70d37342eadaac4abf38011b253b06b02c8fd85f341c4fa80777c3bf4e844d9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-10T16:12:40Z","title_canon_sha256":"ff585003a49b76bbe3803b5aa0cbc0792e0ac6cd464393dc85dc9513da69c46d"},"schema_version":"1.0","source":{"id":"1702.03233","kind":"arxiv","version":2}},"canonical_sha256":"b7a7a59076f8f10c6abbfc02b717de4e69fbee5b77c85d77848c3d76695b3f34","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7a7a59076f8f10c6abbfc02b717de4e69fbee5b77c85d77848c3d76695b3f34","first_computed_at":"2026-05-18T00:40:46.328227Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:46.328227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j7eTykz9jFtYFf1QerWEtRNtTHxLhhL8go7sq4jVotIGOESph0f5Nj86o/5ZQnMNeSNWnTj5lTvrqSBWdjaiBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:46.328924Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.03233","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7870a40554fb7fcab0268867aa8a4b996c6166547ddacf9e30d15fc369d46c99","sha256:6dc9391d16ca97576cc00c3a40b2cedd924f07e37896c7c56fb41e69cf61da2f"],"state_sha256":"eb6c35a4d6cef277baedb157fdcf476d7500f6d97d909207c8cf5bcf6f879d36"}