{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:XLVPWCEGBOQDN6KXZCKP4LEK2G","short_pith_number":"pith:XLVPWCEG","canonical_record":{"source":{"id":"1003.5982","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-03-31T06:58:22Z","cross_cats_sorted":[],"title_canon_sha256":"0c99fb2af7ba7301599d39feb935c2fdddff4f5b9286b844f5e630dc1051c89d","abstract_canon_sha256":"e488321613f7bfb174dd90a7a2ca13a68055d2570f2c1afa232a86802c32cae7"},"schema_version":"1.0"},"canonical_sha256":"baeafb08860ba036f957c894fe2c8ad1a5806ca247d02b14631a52ba8037684b","source":{"kind":"arxiv","id":"1003.5982","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.5982","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"arxiv_version","alias_value":"1003.5982v2","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.5982","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"pith_short_12","alias_value":"XLVPWCEGBOQD","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XLVPWCEGBOQDN6KX","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XLVPWCEG","created_at":"2026-05-18T12:26:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:XLVPWCEGBOQDN6KXZCKP4LEK2G","target":"record","payload":{"canonical_record":{"source":{"id":"1003.5982","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-03-31T06:58:22Z","cross_cats_sorted":[],"title_canon_sha256":"0c99fb2af7ba7301599d39feb935c2fdddff4f5b9286b844f5e630dc1051c89d","abstract_canon_sha256":"e488321613f7bfb174dd90a7a2ca13a68055d2570f2c1afa232a86802c32cae7"},"schema_version":"1.0"},"canonical_sha256":"baeafb08860ba036f957c894fe2c8ad1a5806ca247d02b14631a52ba8037684b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:15.550761Z","signature_b64":"mZGnA08p97hXuutpKVWAildHlBrMgh/NvBBxvuxnDnp9JPvbSWkqxOyLBIDDUHtu78VZmOSVq6lTsDxirJz9Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"baeafb08860ba036f957c894fe2c8ad1a5806ca247d02b14631a52ba8037684b","last_reissued_at":"2026-05-18T02:08:15.550379Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:15.550379Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.5982","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":"2026-05-18T02:08:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vXkj9pBwN7J3cTh97Ej+F8V0UICZ0fTOSPlRLHAFhxFn2HCySMBtXaTLYSCchhlCQr8i8XPjC4HnzKR1mhtxDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:22:50.779216Z"},"content_sha256":"aab04fe3f20c5f8770d5d37d0688f1b680df8e77154b4c46c50ec001881bffcb","schema_version":"1.0","event_id":"sha256:aab04fe3f20c5f8770d5d37d0688f1b680df8e77154b4c46c50ec001881bffcb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:XLVPWCEGBOQDN6KXZCKP4LEK2G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Half-metallic ferromagnetism in transition-metal doped germanium nitride: A first-principles study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Er-Hu Zhang, Sheng-Li Zhang, Wei Wang","submitted_at":"2010-03-31T06:58:22Z","abstract_excerpt":"The electronic and magnetic properties of transition-metal doped $\\beta$-Ge3N4 have been studied using first-principles calculations. The results show that the substitutional transition-metal impurities tend to cluster. The V and Cr doped Ge3N4 compounds are ferromagnetic semiconductors, while the compounds with Mn and Fe doping show a half-metallic ferromagnetic character."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.5982","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":""},"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":"2026-05-18T02:08:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zhi2nt/07ceiXS0trTojVFWCoEeSVPBglponHp8u89GPfv+3Vq0NWqfXusfHMMEzNHRlTgT6vmk+5/z1nwyDDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:22:50.779900Z"},"content_sha256":"a900c82b9ed780a6a2d6e4c65bf2e0685f7544a4fc870e6a632f15f55c6f92fd","schema_version":"1.0","event_id":"sha256:a900c82b9ed780a6a2d6e4c65bf2e0685f7544a4fc870e6a632f15f55c6f92fd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XLVPWCEGBOQDN6KXZCKP4LEK2G/bundle.json","state_url":"https://pith.science/pith/XLVPWCEGBOQDN6KXZCKP4LEK2G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XLVPWCEGBOQDN6KXZCKP4LEK2G/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":"2026-05-26T09:22:50Z","links":{"resolver":"https://pith.science/pith/XLVPWCEGBOQDN6KXZCKP4LEK2G","bundle":"https://pith.science/pith/XLVPWCEGBOQDN6KXZCKP4LEK2G/bundle.json","state":"https://pith.science/pith/XLVPWCEGBOQDN6KXZCKP4LEK2G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XLVPWCEGBOQDN6KXZCKP4LEK2G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:XLVPWCEGBOQDN6KXZCKP4LEK2G","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":"e488321613f7bfb174dd90a7a2ca13a68055d2570f2c1afa232a86802c32cae7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-03-31T06:58:22Z","title_canon_sha256":"0c99fb2af7ba7301599d39feb935c2fdddff4f5b9286b844f5e630dc1051c89d"},"schema_version":"1.0","source":{"id":"1003.5982","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.5982","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"arxiv_version","alias_value":"1003.5982v2","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.5982","created_at":"2026-05-18T02:08:15Z"},{"alias_kind":"pith_short_12","alias_value":"XLVPWCEGBOQD","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_16","alias_value":"XLVPWCEGBOQDN6KX","created_at":"2026-05-18T12:26:17Z"},{"alias_kind":"pith_short_8","alias_value":"XLVPWCEG","created_at":"2026-05-18T12:26:17Z"}],"graph_snapshots":[{"event_id":"sha256:a900c82b9ed780a6a2d6e4c65bf2e0685f7544a4fc870e6a632f15f55c6f92fd","target":"graph","created_at":"2026-05-18T02:08:15Z","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":"The electronic and magnetic properties of transition-metal doped $\\beta$-Ge3N4 have been studied using first-principles calculations. The results show that the substitutional transition-metal impurities tend to cluster. The V and Cr doped Ge3N4 compounds are ferromagnetic semiconductors, while the compounds with Mn and Fe doping show a half-metallic ferromagnetic character.","authors_text":"Er-Hu Zhang, Sheng-Li Zhang, Wei Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-03-31T06:58:22Z","title":"Half-metallic ferromagnetism in transition-metal doped germanium nitride: A first-principles study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.5982","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:aab04fe3f20c5f8770d5d37d0688f1b680df8e77154b4c46c50ec001881bffcb","target":"record","created_at":"2026-05-18T02:08:15Z","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":"e488321613f7bfb174dd90a7a2ca13a68055d2570f2c1afa232a86802c32cae7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-03-31T06:58:22Z","title_canon_sha256":"0c99fb2af7ba7301599d39feb935c2fdddff4f5b9286b844f5e630dc1051c89d"},"schema_version":"1.0","source":{"id":"1003.5982","kind":"arxiv","version":2}},"canonical_sha256":"baeafb08860ba036f957c894fe2c8ad1a5806ca247d02b14631a52ba8037684b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"baeafb08860ba036f957c894fe2c8ad1a5806ca247d02b14631a52ba8037684b","first_computed_at":"2026-05-18T02:08:15.550379Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:15.550379Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mZGnA08p97hXuutpKVWAildHlBrMgh/NvBBxvuxnDnp9JPvbSWkqxOyLBIDDUHtu78VZmOSVq6lTsDxirJz9Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:15.550761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.5982","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aab04fe3f20c5f8770d5d37d0688f1b680df8e77154b4c46c50ec001881bffcb","sha256:a900c82b9ed780a6a2d6e4c65bf2e0685f7544a4fc870e6a632f15f55c6f92fd"],"state_sha256":"cebb26a2488357b1ae3a597e6b7a1b665fd6224a7f93da71d7ec99e17e467632"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DxRsXC0cA/NvqxYTzRdhFpjAh/cO7lHRK9rFHTDZQdsoLJcRewkkal1q+APp/Og6yJsBcqLYaZzbTZ8ON+8oDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:22:50.783475Z","bundle_sha256":"77e4f707145e0486bd31445acdc39334f73f115381512b6ce78b1d994f7157a6"}}