{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:QNUGAZ42IP2DUGBFTS7NAAYFVF","short_pith_number":"pith:QNUGAZ42","canonical_record":{"source":{"id":"2010.14939","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-10-28T12:47:31Z","cross_cats_sorted":[],"title_canon_sha256":"a7f9320d5cfe3ddb116ff612e7e542faa73cfd947dc315e4c9ea803de41505ee","abstract_canon_sha256":"3dfe3ef1f5c045db522d700a3e1a2197f84a893fccf0cdee7506b98e30ed8eed"},"schema_version":"1.0"},"canonical_sha256":"836860679a43f43a18259cbed00305a95a75f6bbde0e169d46c64231ceffb7db","source":{"kind":"arxiv","id":"2010.14939","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.14939","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"arxiv_version","alias_value":"2010.14939v1","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.14939","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"pith_short_12","alias_value":"QNUGAZ42IP2D","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"pith_short_16","alias_value":"QNUGAZ42IP2DUGBF","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"pith_short_8","alias_value":"QNUGAZ42","created_at":"2026-07-05T01:47:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:QNUGAZ42IP2DUGBFTS7NAAYFVF","target":"record","payload":{"canonical_record":{"source":{"id":"2010.14939","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-10-28T12:47:31Z","cross_cats_sorted":[],"title_canon_sha256":"a7f9320d5cfe3ddb116ff612e7e542faa73cfd947dc315e4c9ea803de41505ee","abstract_canon_sha256":"3dfe3ef1f5c045db522d700a3e1a2197f84a893fccf0cdee7506b98e30ed8eed"},"schema_version":"1.0"},"canonical_sha256":"836860679a43f43a18259cbed00305a95a75f6bbde0e169d46c64231ceffb7db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:47:19.843724Z","signature_b64":"GNxXxgq/cRzbw0PkOcxVoZ4GJ7gdvUkMePf13a8Ia/PLxdjRuXBa4JJkBJw0Amcun+8gkR4ISlvCrlqRnuibCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"836860679a43f43a18259cbed00305a95a75f6bbde0e169d46c64231ceffb7db","last_reissued_at":"2026-07-05T01:47:19.843251Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:47:19.843251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2010.14939","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":"2026-07-05T01:47:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8zdEU9riqgZ+0Q3aGB7qvikJfH1b+fotawnRoLcD/HkPX1Ttb8QYMtsWxfEZB0xzAt+Sp5/toTaoXaJECLwrDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:55:07.789505Z"},"content_sha256":"ecfdba53ac47aa39a296f055d3e8b4e50e023af4f67ac2764ed1ac5e5851588a","schema_version":"1.0","event_id":"sha256:ecfdba53ac47aa39a296f055d3e8b4e50e023af4f67ac2764ed1ac5e5851588a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:QNUGAZ42IP2DUGBFTS7NAAYFVF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Metal Halide Perovskite Nanocrystals: Synthesis, Post-Synthesis Modifications and Their Optical Properties","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexander S. Urban, Javad Shamsi, Liberato Manna, Luca De Trizio, Muhammad Imran","submitted_at":"2020-10-28T12:47:31Z","abstract_excerpt":"Metal halide perovskites represent a flourishing area of research, driven by both their potential application in photo-voltaics and optoelectronics, and for the fundamental science underpinning their unique optoelectronic properties. The advent of colloidal methods for the synthesis of halide perovskite nanocrystals has brought to the attention inter-esting aspects of this new type of materials, above all their defect-tolerance. This review aims to provide an updated survey of this fast-moving field, with a main focus on their colloidal synthesis. We examine the chemistry and the ca-pability o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.14939","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2010.14939/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":"2026-07-05T01:47:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zr/UcKo6/o0aanS3K1DAtPEVIVVe0ILUWkNHp0rIQl3mB1kaAzjFDxacAg9duT5v6jFEKsukZOegvMMnV4GDDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T06:55:07.789890Z"},"content_sha256":"aa1171c709ee33a549c2cc5149ced2cc1c8196817fdf8abaa1d3d431229767eb","schema_version":"1.0","event_id":"sha256:aa1171c709ee33a549c2cc5149ced2cc1c8196817fdf8abaa1d3d431229767eb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QNUGAZ42IP2DUGBFTS7NAAYFVF/bundle.json","state_url":"https://pith.science/pith/QNUGAZ42IP2DUGBFTS7NAAYFVF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QNUGAZ42IP2DUGBFTS7NAAYFVF/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":"2026-07-07T06:55:07Z","links":{"resolver":"https://pith.science/pith/QNUGAZ42IP2DUGBFTS7NAAYFVF","bundle":"https://pith.science/pith/QNUGAZ42IP2DUGBFTS7NAAYFVF/bundle.json","state":"https://pith.science/pith/QNUGAZ42IP2DUGBFTS7NAAYFVF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QNUGAZ42IP2DUGBFTS7NAAYFVF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:QNUGAZ42IP2DUGBFTS7NAAYFVF","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":"3dfe3ef1f5c045db522d700a3e1a2197f84a893fccf0cdee7506b98e30ed8eed","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-10-28T12:47:31Z","title_canon_sha256":"a7f9320d5cfe3ddb116ff612e7e542faa73cfd947dc315e4c9ea803de41505ee"},"schema_version":"1.0","source":{"id":"2010.14939","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.14939","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"arxiv_version","alias_value":"2010.14939v1","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.14939","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"pith_short_12","alias_value":"QNUGAZ42IP2D","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"pith_short_16","alias_value":"QNUGAZ42IP2DUGBF","created_at":"2026-07-05T01:47:19Z"},{"alias_kind":"pith_short_8","alias_value":"QNUGAZ42","created_at":"2026-07-05T01:47:19Z"}],"graph_snapshots":[{"event_id":"sha256:aa1171c709ee33a549c2cc5149ced2cc1c8196817fdf8abaa1d3d431229767eb","target":"graph","created_at":"2026-07-05T01:47:19Z","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/2010.14939/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Metal halide perovskites represent a flourishing area of research, driven by both their potential application in photo-voltaics and optoelectronics, and for the fundamental science underpinning their unique optoelectronic properties. The advent of colloidal methods for the synthesis of halide perovskite nanocrystals has brought to the attention inter-esting aspects of this new type of materials, above all their defect-tolerance. This review aims to provide an updated survey of this fast-moving field, with a main focus on their colloidal synthesis. We examine the chemistry and the ca-pability o","authors_text":"Alexander S. Urban, Javad Shamsi, Liberato Manna, Luca De Trizio, Muhammad Imran","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-10-28T12:47:31Z","title":"Metal Halide Perovskite Nanocrystals: Synthesis, Post-Synthesis Modifications and Their Optical Properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.14939","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:ecfdba53ac47aa39a296f055d3e8b4e50e023af4f67ac2764ed1ac5e5851588a","target":"record","created_at":"2026-07-05T01:47:19Z","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":"3dfe3ef1f5c045db522d700a3e1a2197f84a893fccf0cdee7506b98e30ed8eed","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2020-10-28T12:47:31Z","title_canon_sha256":"a7f9320d5cfe3ddb116ff612e7e542faa73cfd947dc315e4c9ea803de41505ee"},"schema_version":"1.0","source":{"id":"2010.14939","kind":"arxiv","version":1}},"canonical_sha256":"836860679a43f43a18259cbed00305a95a75f6bbde0e169d46c64231ceffb7db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"836860679a43f43a18259cbed00305a95a75f6bbde0e169d46c64231ceffb7db","first_computed_at":"2026-07-05T01:47:19.843251Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:47:19.843251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GNxXxgq/cRzbw0PkOcxVoZ4GJ7gdvUkMePf13a8Ia/PLxdjRuXBa4JJkBJw0Amcun+8gkR4ISlvCrlqRnuibCw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:47:19.843724Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.14939","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ecfdba53ac47aa39a296f055d3e8b4e50e023af4f67ac2764ed1ac5e5851588a","sha256:aa1171c709ee33a549c2cc5149ced2cc1c8196817fdf8abaa1d3d431229767eb"],"state_sha256":"d68941c15ebfd7368e3452b5d3a34db5552a18ac9b67cc2371ef63d8830667e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RQsr3vM2D9/O3bnPrlfjj05I2dqK6S78Kk/GHGZf8IVp4yZ2MORqj3eCJYBqWZFLBHrCPVQ4LM6xNDPBYfA4AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T06:55:07.791951Z","bundle_sha256":"3176af5dcf7840708a26bed008384f9bf42980da806b973ab5df01dac95e1163"}}