{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:FC5VFTMHHS7IGK3ENZ56YI57OC","short_pith_number":"pith:FC5VFTMH","canonical_record":{"source":{"id":"2404.16494","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-04-25T10:40:09Z","cross_cats_sorted":[],"title_canon_sha256":"e12e02e1473d14abdbd139f79b9a03d7f769cb04016e729300e8fc88a59ed0f5","abstract_canon_sha256":"85848f64725f7c5d5912ce6c791276b7551259154ec13c2400001913f3c21008"},"schema_version":"1.0"},"canonical_sha256":"28bb52cd873cbe832b646e7bec23bf70925fd9e304d818aced32d7eb12847e62","source":{"kind":"arxiv","id":"2404.16494","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.16494","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"arxiv_version","alias_value":"2404.16494v1","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.16494","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"pith_short_12","alias_value":"FC5VFTMHHS7I","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"pith_short_16","alias_value":"FC5VFTMHHS7IGK3E","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"pith_short_8","alias_value":"FC5VFTMH","created_at":"2026-07-05T08:12:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:FC5VFTMHHS7IGK3ENZ56YI57OC","target":"record","payload":{"canonical_record":{"source":{"id":"2404.16494","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-04-25T10:40:09Z","cross_cats_sorted":[],"title_canon_sha256":"e12e02e1473d14abdbd139f79b9a03d7f769cb04016e729300e8fc88a59ed0f5","abstract_canon_sha256":"85848f64725f7c5d5912ce6c791276b7551259154ec13c2400001913f3c21008"},"schema_version":"1.0"},"canonical_sha256":"28bb52cd873cbe832b646e7bec23bf70925fd9e304d818aced32d7eb12847e62","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:12:08.190603Z","signature_b64":"UzMQmk0v0ZcEfBx2gGgg1yoJ3BqaeK/m3E6rZi6Jwq1+fFP2bK+cP9g8dG022tXSNvnM6CSuRq3bkRx1VqdXCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28bb52cd873cbe832b646e7bec23bf70925fd9e304d818aced32d7eb12847e62","last_reissued_at":"2026-07-05T08:12:08.190231Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:12:08.190231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.16494","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":"2026-07-05T08:12:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X4OxQDAk2L5Mm40uSnGkKofEhkj9+Pu5ECGU9v1rbdjGcutD71qYuLz8uUVzeB0fIth4yxblrM2jAJilrBmnCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:03:28.790805Z"},"content_sha256":"f801f9130a6a92e6bfafa400687a907848e4d74d8307f46900f42b4fa577eca3","schema_version":"1.0","event_id":"sha256:f801f9130a6a92e6bfafa400687a907848e4d74d8307f46900f42b4fa577eca3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:FC5VFTMHHS7IGK3ENZ56YI57OC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Theoretical Insights into Inorganic Antiperovskite Nitrides (X$_3$NA; X = Mg, Sr, Ca, Ba; A = Sb, As): An Emerging Class of Materials for Photovoltaics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Claudia Draxl, Manjari Jain, Sanchi Monga, Saswata Bhattacharya","submitted_at":"2024-04-25T10:40:09Z","abstract_excerpt":"Antiperovskite nitrides are potential candidates for applications harvesting solar light. With a comprehensive state-of-the-art approach combining hybrid density-functional theory, many-body perturbation theory, the Wannier-Mott model, density-functional perturbation theory, and the Feynman polaron model, we explore excitonic and polaronic effects in X$_3$NA (X: Mg, Ca, Sr, Ba, A = Sb, As). For all of them, we uncover a significant influence of the ionic dielectric screening on the static dielectric constant. Small exciton binding energies, weak electron-phonon coupling, and high charge-carrie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.16494","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/2404.16494/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":"2026-07-05T08:12:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Blgk7cH8FdWP29W96nM49TaueoZO4+FED6SDOpWG3c13nDzSBd7cv2a3MwNeD2+D2SEwVK+J569X3O1N8hEOAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:03:28.791328Z"},"content_sha256":"4d0a6900ed6cb8d9bdf8976f67eb282fc8391aafa87a67689be8c71efcd9cb52","schema_version":"1.0","event_id":"sha256:4d0a6900ed6cb8d9bdf8976f67eb282fc8391aafa87a67689be8c71efcd9cb52"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FC5VFTMHHS7IGK3ENZ56YI57OC/bundle.json","state_url":"https://pith.science/pith/FC5VFTMHHS7IGK3ENZ56YI57OC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FC5VFTMHHS7IGK3ENZ56YI57OC/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":"2026-08-05T07:03:28Z","links":{"resolver":"https://pith.science/pith/FC5VFTMHHS7IGK3ENZ56YI57OC","bundle":"https://pith.science/pith/FC5VFTMHHS7IGK3ENZ56YI57OC/bundle.json","state":"https://pith.science/pith/FC5VFTMHHS7IGK3ENZ56YI57OC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FC5VFTMHHS7IGK3ENZ56YI57OC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:FC5VFTMHHS7IGK3ENZ56YI57OC","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":"85848f64725f7c5d5912ce6c791276b7551259154ec13c2400001913f3c21008","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-04-25T10:40:09Z","title_canon_sha256":"e12e02e1473d14abdbd139f79b9a03d7f769cb04016e729300e8fc88a59ed0f5"},"schema_version":"1.0","source":{"id":"2404.16494","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.16494","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"arxiv_version","alias_value":"2404.16494v1","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.16494","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"pith_short_12","alias_value":"FC5VFTMHHS7I","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"pith_short_16","alias_value":"FC5VFTMHHS7IGK3E","created_at":"2026-07-05T08:12:08Z"},{"alias_kind":"pith_short_8","alias_value":"FC5VFTMH","created_at":"2026-07-05T08:12:08Z"}],"graph_snapshots":[{"event_id":"sha256:4d0a6900ed6cb8d9bdf8976f67eb282fc8391aafa87a67689be8c71efcd9cb52","target":"graph","created_at":"2026-07-05T08:12:08Z","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/2404.16494/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Antiperovskite nitrides are potential candidates for applications harvesting solar light. With a comprehensive state-of-the-art approach combining hybrid density-functional theory, many-body perturbation theory, the Wannier-Mott model, density-functional perturbation theory, and the Feynman polaron model, we explore excitonic and polaronic effects in X$_3$NA (X: Mg, Ca, Sr, Ba, A = Sb, As). For all of them, we uncover a significant influence of the ionic dielectric screening on the static dielectric constant. Small exciton binding energies, weak electron-phonon coupling, and high charge-carrie","authors_text":"Claudia Draxl, Manjari Jain, Sanchi Monga, Saswata Bhattacharya","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-04-25T10:40:09Z","title":"Theoretical Insights into Inorganic Antiperovskite Nitrides (X$_3$NA; X = Mg, Sr, Ca, Ba; A = Sb, As): An Emerging Class of Materials for Photovoltaics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.16494","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:f801f9130a6a92e6bfafa400687a907848e4d74d8307f46900f42b4fa577eca3","target":"record","created_at":"2026-07-05T08:12:08Z","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":"85848f64725f7c5d5912ce6c791276b7551259154ec13c2400001913f3c21008","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-04-25T10:40:09Z","title_canon_sha256":"e12e02e1473d14abdbd139f79b9a03d7f769cb04016e729300e8fc88a59ed0f5"},"schema_version":"1.0","source":{"id":"2404.16494","kind":"arxiv","version":1}},"canonical_sha256":"28bb52cd873cbe832b646e7bec23bf70925fd9e304d818aced32d7eb12847e62","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28bb52cd873cbe832b646e7bec23bf70925fd9e304d818aced32d7eb12847e62","first_computed_at":"2026-07-05T08:12:08.190231Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:12:08.190231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UzMQmk0v0ZcEfBx2gGgg1yoJ3BqaeK/m3E6rZi6Jwq1+fFP2bK+cP9g8dG022tXSNvnM6CSuRq3bkRx1VqdXCw==","signature_status":"signed_v1","signed_at":"2026-07-05T08:12:08.190603Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.16494","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f801f9130a6a92e6bfafa400687a907848e4d74d8307f46900f42b4fa577eca3","sha256:4d0a6900ed6cb8d9bdf8976f67eb282fc8391aafa87a67689be8c71efcd9cb52"],"state_sha256":"d668e24ccfe8f44b11e1816b7c5cf2ab7ccbec0651c91fce1c30d8119610814d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rusN28/e9amzphJOfUtap6K0LYp5pKp2qG/jPOQWp39e1vZWrJE7wYriTiU1mmze7V36iRHwoOPCihAPVo7xDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T07:03:28.794643Z","bundle_sha256":"83fbc503c6fa9fa08ad3cc5ee0173ceee5189c3762098d26d329d6da9426cba3"}}