{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:SH7SDD37I5HZV55RE3ZAPHZ7DL","short_pith_number":"pith:SH7SDD37","canonical_record":{"source":{"id":"2106.00447","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-06-01T12:58:52Z","cross_cats_sorted":[],"title_canon_sha256":"f774c2fc1fc78cd9d429a44b630fead8e0bd4be9d1eba3be01a33a1e1aac6ac6","abstract_canon_sha256":"48e2235b4eeffdab2e1b524ba059bbbd9d2a4ce5dc17a1561fe0efe27947f29a"},"schema_version":"1.0"},"canonical_sha256":"91ff218f7f474f9af7b126f2079f3f1ac9475d943497d98726e65bec1cf61302","source":{"kind":"arxiv","id":"2106.00447","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.00447","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"arxiv_version","alias_value":"2106.00447v2","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.00447","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"pith_short_12","alias_value":"SH7SDD37I5HZ","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"pith_short_16","alias_value":"SH7SDD37I5HZV55R","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"pith_short_8","alias_value":"SH7SDD37","created_at":"2026-07-05T03:06:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:SH7SDD37I5HZV55RE3ZAPHZ7DL","target":"record","payload":{"canonical_record":{"source":{"id":"2106.00447","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-06-01T12:58:52Z","cross_cats_sorted":[],"title_canon_sha256":"f774c2fc1fc78cd9d429a44b630fead8e0bd4be9d1eba3be01a33a1e1aac6ac6","abstract_canon_sha256":"48e2235b4eeffdab2e1b524ba059bbbd9d2a4ce5dc17a1561fe0efe27947f29a"},"schema_version":"1.0"},"canonical_sha256":"91ff218f7f474f9af7b126f2079f3f1ac9475d943497d98726e65bec1cf61302","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:06:28.701849Z","signature_b64":"maI3z++y4eWTlJtkfanXQQurshaFxFaRlbyqSomGoYTep4qntsEP0vGp8LQ+MRnF+I2HGSq7cgMWHiOz6MoIBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91ff218f7f474f9af7b126f2079f3f1ac9475d943497d98726e65bec1cf61302","last_reissued_at":"2026-07-05T03:06:28.701429Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:06:28.701429Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.00447","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":"2026-07-05T03:06:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LhftA+3OGtz8Jh3SBkB6SLTE+3YSV+c1U7n2BEysOdokgm6yTzOBt61RZ627BkXS30Vr3kAK4rquCDvyi/irBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T21:41:59.390902Z"},"content_sha256":"cf3f4820e4b0ca9484ba189be1548125bbff0a34185d7fcbab8521b8e783f036","schema_version":"1.0","event_id":"sha256:cf3f4820e4b0ca9484ba189be1548125bbff0a34185d7fcbab8521b8e783f036"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:SH7SDD37I5HZV55RE3ZAPHZ7DL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Crystal chemical insights on lead iodide perovskite doping from revised effective radii of metal ions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexey B. Tarasov, Chen Qi, Ekaterina I. Marchenko, Eugene A. Goodilin, Nikolay N. Eremin, Sergey A. Fateev","submitted_at":"2021-06-01T12:58:52Z","abstract_excerpt":"Over the last few years of the heyday of hybrid halide perovskites, so many metal cations additives have been tested to improve their optoelectronic properties that it is already difficult to find an element that has not yet been tried. In general, the variety of these approaches is united under the name \"doping\", however, there is currently no clear understanding of the mechanisms of the influence of the metal ion additives on the properties of the lead halide perovskite materials. For many ions there is even no consensus on the most fundamental questions: what lattice position does a given i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.00447","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2106.00447/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:06:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"if54dcPRkaDiVT6qqsl+Yhda7EQkauiTf4DbJsmz+4/UWzxkjVMorajip1h2r6utjrb2XgIM+m0pac6p1KaQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-21T21:41:59.391265Z"},"content_sha256":"69884460639e1fed88186285ff0dbba07fd3d2f55dc5a91feb76a047d4f31f79","schema_version":"1.0","event_id":"sha256:69884460639e1fed88186285ff0dbba07fd3d2f55dc5a91feb76a047d4f31f79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SH7SDD37I5HZV55RE3ZAPHZ7DL/bundle.json","state_url":"https://pith.science/pith/SH7SDD37I5HZV55RE3ZAPHZ7DL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SH7SDD37I5HZV55RE3ZAPHZ7DL/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":"2026-07-21T21:41:59Z","links":{"resolver":"https://pith.science/pith/SH7SDD37I5HZV55RE3ZAPHZ7DL","bundle":"https://pith.science/pith/SH7SDD37I5HZV55RE3ZAPHZ7DL/bundle.json","state":"https://pith.science/pith/SH7SDD37I5HZV55RE3ZAPHZ7DL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SH7SDD37I5HZV55RE3ZAPHZ7DL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:SH7SDD37I5HZV55RE3ZAPHZ7DL","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":"48e2235b4eeffdab2e1b524ba059bbbd9d2a4ce5dc17a1561fe0efe27947f29a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-06-01T12:58:52Z","title_canon_sha256":"f774c2fc1fc78cd9d429a44b630fead8e0bd4be9d1eba3be01a33a1e1aac6ac6"},"schema_version":"1.0","source":{"id":"2106.00447","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.00447","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"arxiv_version","alias_value":"2106.00447v2","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.00447","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"pith_short_12","alias_value":"SH7SDD37I5HZ","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"pith_short_16","alias_value":"SH7SDD37I5HZV55R","created_at":"2026-07-05T03:06:28Z"},{"alias_kind":"pith_short_8","alias_value":"SH7SDD37","created_at":"2026-07-05T03:06:28Z"}],"graph_snapshots":[{"event_id":"sha256:69884460639e1fed88186285ff0dbba07fd3d2f55dc5a91feb76a047d4f31f79","target":"graph","created_at":"2026-07-05T03:06:28Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2106.00447/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Over the last few years of the heyday of hybrid halide perovskites, so many metal cations additives have been tested to improve their optoelectronic properties that it is already difficult to find an element that has not yet been tried. In general, the variety of these approaches is united under the name \"doping\", however, there is currently no clear understanding of the mechanisms of the influence of the metal ion additives on the properties of the lead halide perovskite materials. For many ions there is even no consensus on the most fundamental questions: what lattice position does a given i","authors_text":"Alexey B. Tarasov, Chen Qi, Ekaterina I. Marchenko, Eugene A. Goodilin, Nikolay N. Eremin, Sergey A. Fateev","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-06-01T12:58:52Z","title":"Crystal chemical insights on lead iodide perovskite doping from revised effective radii of metal ions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.00447","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:cf3f4820e4b0ca9484ba189be1548125bbff0a34185d7fcbab8521b8e783f036","target":"record","created_at":"2026-07-05T03:06:28Z","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":"48e2235b4eeffdab2e1b524ba059bbbd9d2a4ce5dc17a1561fe0efe27947f29a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-06-01T12:58:52Z","title_canon_sha256":"f774c2fc1fc78cd9d429a44b630fead8e0bd4be9d1eba3be01a33a1e1aac6ac6"},"schema_version":"1.0","source":{"id":"2106.00447","kind":"arxiv","version":2}},"canonical_sha256":"91ff218f7f474f9af7b126f2079f3f1ac9475d943497d98726e65bec1cf61302","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91ff218f7f474f9af7b126f2079f3f1ac9475d943497d98726e65bec1cf61302","first_computed_at":"2026-07-05T03:06:28.701429Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:06:28.701429Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"maI3z++y4eWTlJtkfanXQQurshaFxFaRlbyqSomGoYTep4qntsEP0vGp8LQ+MRnF+I2HGSq7cgMWHiOz6MoIBg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:06:28.701849Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.00447","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf3f4820e4b0ca9484ba189be1548125bbff0a34185d7fcbab8521b8e783f036","sha256:69884460639e1fed88186285ff0dbba07fd3d2f55dc5a91feb76a047d4f31f79"],"state_sha256":"642e9c6106f3572e6b19093ee771918c1fa3b86a3593d550618810f43c454238"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ixCIW1lwQjeRk0Z16+HBq8K46PVReSV9+Dr40H5a3ChrMjYylPbzlnWn3r8udFYH/l46dFXPScBxfm00T6YGAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-21T21:41:59.393856Z","bundle_sha256":"73abccc8711fad24232263fbe333b442e881b144e39cfc1d52fcfc783d52cb0b"}}