{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:QGJAM4HVHWXNZ3TZET3S7JBEOZ","short_pith_number":"pith:QGJAM4HV","canonical_record":{"source":{"id":"2607.13846","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-15T13:53:35Z","cross_cats_sorted":[],"title_canon_sha256":"588a8b7b41197246332ba3c1553daad8d3fb63eac56311823fc067afd2a1bc29","abstract_canon_sha256":"4488f0761b9b56acff978a97d51201ae9285ad37771d0bedb5e80626299cbe38"},"schema_version":"1.0"},"canonical_sha256":"81920670f53daedcee7924f72fa4247671897fa827e1eb591ebf66eaabd3b836","source":{"kind":"arxiv","id":"2607.13846","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.13846","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"arxiv_version","alias_value":"2607.13846v1","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13846","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"pith_short_12","alias_value":"QGJAM4HVHWXN","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"pith_short_16","alias_value":"QGJAM4HVHWXNZ3TZ","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"pith_short_8","alias_value":"QGJAM4HV","created_at":"2026-07-16T01:23:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:QGJAM4HVHWXNZ3TZET3S7JBEOZ","target":"record","payload":{"canonical_record":{"source":{"id":"2607.13846","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-15T13:53:35Z","cross_cats_sorted":[],"title_canon_sha256":"588a8b7b41197246332ba3c1553daad8d3fb63eac56311823fc067afd2a1bc29","abstract_canon_sha256":"4488f0761b9b56acff978a97d51201ae9285ad37771d0bedb5e80626299cbe38"},"schema_version":"1.0"},"canonical_sha256":"81920670f53daedcee7924f72fa4247671897fa827e1eb591ebf66eaabd3b836","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-16T01:23:09.399174Z","signature_b64":"4DQo0nYZAoUcL8iklRmGtdCufY9KMRMkVrn0iaQJR8ZZFqo6BCl3LCZuLA1Yc2asTgGnwu8aMEQECq/0pmQZBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"81920670f53daedcee7924f72fa4247671897fa827e1eb591ebf66eaabd3b836","last_reissued_at":"2026-07-16T01:23:09.398297Z","signature_status":"signed_v1","first_computed_at":"2026-07-16T01:23:09.398297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.13846","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":"2026-07-16T01:23:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I3OE4YFsZHMPx/HmC8iz/NlSrdgttcao77jcG+D5irwuwNGAvF4JRccSDG0X8vboApQAUY7ma77EfDYhN2IbCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T15:56:17.837527Z"},"content_sha256":"e8c0be3acb765645a7d591a7481b1b3bfd2a240d65c6f18ac20874c358d05b96","schema_version":"1.0","event_id":"sha256:e8c0be3acb765645a7d591a7481b1b3bfd2a240d65c6f18ac20874c358d05b96"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:QGJAM4HVHWXNZ3TZET3S7JBEOZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First-principles Study of Structural and Electronic Properties of Mn-doped Cu2NiXY4 (X=Sn, Ge, Si; Y=S, Se) Chalcogenide Semiconductors","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Amondullo Burhonzoda, Dilshod Nematov, Iskandar Raufzoda","submitted_at":"2026-07-15T13:53:35Z","abstract_excerpt":"In this work, the effect of partial substitution of Mn by Ni on the structural and electronic properties of kesterite systems Cu2NiXY4 (X = Sn, Ge, Si; Y = S, Se) was studied using density functional theory (DFT). The mBJ+U method was used to characterize the bandgap more accurately. To the best of our knowledge, a systematic comparative study of Mn substitution in the entire Cu2NiXY4 (X = Sn, Ge, Si; Y = S, Se) family has not been previously performed. Due to crystallographic constraints of the kesterite unit cell, the substitution of a single Ni atom with Mn corresponds to 50%. This configur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13846","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/2607.13846/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":"2026-07-16T01:23:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j/5/eHJM5P1e9s4HIyBJGRq8HSkU4CbWgjsAppY085jbueSc3E+kUvkl/bmqD21vu1kyzOcpNotnJWL5kcy/DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T15:56:17.838444Z"},"content_sha256":"8d4ceb0c7fb44840802e347b00ca40ab014d84b1eaaad1400bb8474baaa7c310","schema_version":"1.0","event_id":"sha256:8d4ceb0c7fb44840802e347b00ca40ab014d84b1eaaad1400bb8474baaa7c310"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QGJAM4HVHWXNZ3TZET3S7JBEOZ/bundle.json","state_url":"https://pith.science/pith/QGJAM4HVHWXNZ3TZET3S7JBEOZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QGJAM4HVHWXNZ3TZET3S7JBEOZ/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":"2026-08-16T15:56:17Z","links":{"resolver":"https://pith.science/pith/QGJAM4HVHWXNZ3TZET3S7JBEOZ","bundle":"https://pith.science/pith/QGJAM4HVHWXNZ3TZET3S7JBEOZ/bundle.json","state":"https://pith.science/pith/QGJAM4HVHWXNZ3TZET3S7JBEOZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QGJAM4HVHWXNZ3TZET3S7JBEOZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QGJAM4HVHWXNZ3TZET3S7JBEOZ","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":"4488f0761b9b56acff978a97d51201ae9285ad37771d0bedb5e80626299cbe38","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-15T13:53:35Z","title_canon_sha256":"588a8b7b41197246332ba3c1553daad8d3fb63eac56311823fc067afd2a1bc29"},"schema_version":"1.0","source":{"id":"2607.13846","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.13846","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"arxiv_version","alias_value":"2607.13846v1","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.13846","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"pith_short_12","alias_value":"QGJAM4HVHWXN","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"pith_short_16","alias_value":"QGJAM4HVHWXNZ3TZ","created_at":"2026-07-16T01:23:09Z"},{"alias_kind":"pith_short_8","alias_value":"QGJAM4HV","created_at":"2026-07-16T01:23:09Z"}],"graph_snapshots":[{"event_id":"sha256:8d4ceb0c7fb44840802e347b00ca40ab014d84b1eaaad1400bb8474baaa7c310","target":"graph","created_at":"2026-07-16T01:23:09Z","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/2607.13846/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, the effect of partial substitution of Mn by Ni on the structural and electronic properties of kesterite systems Cu2NiXY4 (X = Sn, Ge, Si; Y = S, Se) was studied using density functional theory (DFT). The mBJ+U method was used to characterize the bandgap more accurately. To the best of our knowledge, a systematic comparative study of Mn substitution in the entire Cu2NiXY4 (X = Sn, Ge, Si; Y = S, Se) family has not been previously performed. Due to crystallographic constraints of the kesterite unit cell, the substitution of a single Ni atom with Mn corresponds to 50%. This configur","authors_text":"Amondullo Burhonzoda, Dilshod Nematov, Iskandar Raufzoda","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-15T13:53:35Z","title":"First-principles Study of Structural and Electronic Properties of Mn-doped Cu2NiXY4 (X=Sn, Ge, Si; Y=S, Se) Chalcogenide Semiconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.13846","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:e8c0be3acb765645a7d591a7481b1b3bfd2a240d65c6f18ac20874c358d05b96","target":"record","created_at":"2026-07-16T01:23:09Z","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":"4488f0761b9b56acff978a97d51201ae9285ad37771d0bedb5e80626299cbe38","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-15T13:53:35Z","title_canon_sha256":"588a8b7b41197246332ba3c1553daad8d3fb63eac56311823fc067afd2a1bc29"},"schema_version":"1.0","source":{"id":"2607.13846","kind":"arxiv","version":1}},"canonical_sha256":"81920670f53daedcee7924f72fa4247671897fa827e1eb591ebf66eaabd3b836","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"81920670f53daedcee7924f72fa4247671897fa827e1eb591ebf66eaabd3b836","first_computed_at":"2026-07-16T01:23:09.398297Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-16T01:23:09.398297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4DQo0nYZAoUcL8iklRmGtdCufY9KMRMkVrn0iaQJR8ZZFqo6BCl3LCZuLA1Yc2asTgGnwu8aMEQECq/0pmQZBA==","signature_status":"signed_v1","signed_at":"2026-07-16T01:23:09.399174Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.13846","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e8c0be3acb765645a7d591a7481b1b3bfd2a240d65c6f18ac20874c358d05b96","sha256:8d4ceb0c7fb44840802e347b00ca40ab014d84b1eaaad1400bb8474baaa7c310"],"state_sha256":"40d676e0bb7deef9b636f77f424765340c608a4a7e9dbc3a5c04bb9eea2a3cda"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6oNrz0KZC0t7yX1hSoOGfd5miHD7PV5mT+/ff6GOYFu88iRu3yRHhjSM15badt+SpVr94MyfJ9fQUIHkOtv9Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T15:56:17.844532Z","bundle_sha256":"214e93184d3ebde4e8a6153639ebcd38edf8afc3fab6ae75519e770cc3e5b41d"}}