{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:Q3WIXAYFAGT4KS3QVQXOSL6C6S","short_pith_number":"pith:Q3WIXAYF","canonical_record":{"source":{"id":"1603.08683","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-29T09:09:28Z","cross_cats_sorted":[],"title_canon_sha256":"e354d1aed074f1248ee4f4a314b5cb9af9baf31dac1c72581db4af7cf7eb5017","abstract_canon_sha256":"8c057e76a4a3381da7863fce1e2f85c31d1b212be8f0e854eaa965c9c7140593"},"schema_version":"1.0"},"canonical_sha256":"86ec8b830501a7c54b70ac2ee92fc2f48ea928da01017e67d426bd94c87ca81e","source":{"kind":"arxiv","id":"1603.08683","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.08683","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"arxiv_version","alias_value":"1603.08683v1","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.08683","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"pith_short_12","alias_value":"Q3WIXAYFAGT4","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q3WIXAYFAGT4KS3Q","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q3WIXAYF","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:Q3WIXAYFAGT4KS3QVQXOSL6C6S","target":"record","payload":{"canonical_record":{"source":{"id":"1603.08683","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-29T09:09:28Z","cross_cats_sorted":[],"title_canon_sha256":"e354d1aed074f1248ee4f4a314b5cb9af9baf31dac1c72581db4af7cf7eb5017","abstract_canon_sha256":"8c057e76a4a3381da7863fce1e2f85c31d1b212be8f0e854eaa965c9c7140593"},"schema_version":"1.0"},"canonical_sha256":"86ec8b830501a7c54b70ac2ee92fc2f48ea928da01017e67d426bd94c87ca81e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:59.255562Z","signature_b64":"Nbv9D5TxeeSoVveopMsBnRHCs2AxjDeoK+DVgFA/2LaHd3AImi1ljmnPLFQQ8B8KtFRbNzceuZE86rDquCutDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86ec8b830501a7c54b70ac2ee92fc2f48ea928da01017e67d426bd94c87ca81e","last_reissued_at":"2026-05-18T01:03:59.254735Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:59.254735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1603.08683","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":"2026-05-18T01:03:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"61i6JZzSZTa0HSjEqO9GlM8alyoJ1jSdRBl0ZxV1Mq6GQtTDma2GqvvYbczgnahqvJU1gHVR/BrtUuiKNz5PDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:15:04.711693Z"},"content_sha256":"69f2e783dcdf1c23fee46f170177241515c6360fcf5f56663426370964228488","schema_version":"1.0","event_id":"sha256:69f2e783dcdf1c23fee46f170177241515c6360fcf5f56663426370964228488"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:Q3WIXAYFAGT4KS3QVQXOSL6C6S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effect of Halide Composition on the Photochemical Stability of Perovskite Photovoltaic Materials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Dmitry Mogilyansky, Eugene A. Katz, Iris Visoly-Fisher, Laura Ciammaruchi, Lioz Etgar, Ravi K. Misra, Sigalit Aharon","submitted_at":"2016-03-29T09:09:28Z","abstract_excerpt":"Photochemical stability of encapsulated films of mixed halide perovskites with a range of MAPb(I1-xBrx)3 compositions (solid solutions) was investigated under accelerated stressing using concentrated sunlight. Evolution of light absorption and the corresponding structural modifications in the films were recorded by UV-vis spectroscopy and X-ray diffraction (XRD), respectively. MAPbBr3 film exhibited no degradation. In MAPbI3 and mixed halide MAPb(I1-xBrx)3 films, decomposition of the perovskite material with crystallization of inorganic PbI2, and the corresponding degradation of light absorpti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.08683","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":"2026-05-18T01:03:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MafUuK8SI3Lx6Ou6R80jQAqH/vMb1ssfRVhq3vj0FoGb7XuFZ1/DHnp6kPcSjI5LgHCozqNbVriGt003cvkAAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T01:15:04.712437Z"},"content_sha256":"b6f298e87d0a07f5d0ffae2971267ebd1e16a5de28b39290f7f2153addbc8970","schema_version":"1.0","event_id":"sha256:b6f298e87d0a07f5d0ffae2971267ebd1e16a5de28b39290f7f2153addbc8970"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q3WIXAYFAGT4KS3QVQXOSL6C6S/bundle.json","state_url":"https://pith.science/pith/Q3WIXAYFAGT4KS3QVQXOSL6C6S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q3WIXAYFAGT4KS3QVQXOSL6C6S/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":"2026-06-10T01:15:04Z","links":{"resolver":"https://pith.science/pith/Q3WIXAYFAGT4KS3QVQXOSL6C6S","bundle":"https://pith.science/pith/Q3WIXAYFAGT4KS3QVQXOSL6C6S/bundle.json","state":"https://pith.science/pith/Q3WIXAYFAGT4KS3QVQXOSL6C6S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q3WIXAYFAGT4KS3QVQXOSL6C6S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:Q3WIXAYFAGT4KS3QVQXOSL6C6S","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":"8c057e76a4a3381da7863fce1e2f85c31d1b212be8f0e854eaa965c9c7140593","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-29T09:09:28Z","title_canon_sha256":"e354d1aed074f1248ee4f4a314b5cb9af9baf31dac1c72581db4af7cf7eb5017"},"schema_version":"1.0","source":{"id":"1603.08683","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.08683","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"arxiv_version","alias_value":"1603.08683v1","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.08683","created_at":"2026-05-18T01:03:59Z"},{"alias_kind":"pith_short_12","alias_value":"Q3WIXAYFAGT4","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"Q3WIXAYFAGT4KS3Q","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"Q3WIXAYF","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:b6f298e87d0a07f5d0ffae2971267ebd1e16a5de28b39290f7f2153addbc8970","target":"graph","created_at":"2026-05-18T01:03:59Z","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":"Photochemical stability of encapsulated films of mixed halide perovskites with a range of MAPb(I1-xBrx)3 compositions (solid solutions) was investigated under accelerated stressing using concentrated sunlight. Evolution of light absorption and the corresponding structural modifications in the films were recorded by UV-vis spectroscopy and X-ray diffraction (XRD), respectively. MAPbBr3 film exhibited no degradation. In MAPbI3 and mixed halide MAPb(I1-xBrx)3 films, decomposition of the perovskite material with crystallization of inorganic PbI2, and the corresponding degradation of light absorpti","authors_text":"Dmitry Mogilyansky, Eugene A. Katz, Iris Visoly-Fisher, Laura Ciammaruchi, Lioz Etgar, Ravi K. Misra, Sigalit Aharon","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-29T09:09:28Z","title":"Effect of Halide Composition on the Photochemical Stability of Perovskite Photovoltaic Materials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.08683","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":"sha256:69f2e783dcdf1c23fee46f170177241515c6360fcf5f56663426370964228488","target":"record","created_at":"2026-05-18T01:03:59Z","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":"8c057e76a4a3381da7863fce1e2f85c31d1b212be8f0e854eaa965c9c7140593","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-03-29T09:09:28Z","title_canon_sha256":"e354d1aed074f1248ee4f4a314b5cb9af9baf31dac1c72581db4af7cf7eb5017"},"schema_version":"1.0","source":{"id":"1603.08683","kind":"arxiv","version":1}},"canonical_sha256":"86ec8b830501a7c54b70ac2ee92fc2f48ea928da01017e67d426bd94c87ca81e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86ec8b830501a7c54b70ac2ee92fc2f48ea928da01017e67d426bd94c87ca81e","first_computed_at":"2026-05-18T01:03:59.254735Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:59.254735Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Nbv9D5TxeeSoVveopMsBnRHCs2AxjDeoK+DVgFA/2LaHd3AImi1ljmnPLFQQ8B8KtFRbNzceuZE86rDquCutDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:59.255562Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.08683","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:69f2e783dcdf1c23fee46f170177241515c6360fcf5f56663426370964228488","sha256:b6f298e87d0a07f5d0ffae2971267ebd1e16a5de28b39290f7f2153addbc8970"],"state_sha256":"c8bd8963c81e1a2297b81d441721f0cae159b887568796f541d6c86e42b49174"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eCECzBiqYRREWjklv6half8MiB4nOAgo+Fh6jwvkrMTkzfMXDCSr6DJ9wDqLzRhg/VwaRCUJMxxRf8eupKISDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T01:15:04.716551Z","bundle_sha256":"ef47af2184ad940baf67064ff56d5e1cd6308cfe5fde7e707ef9045b32632193"}}