{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:DN7NJRGNKMKOQBWT3J4CILXGDB","short_pith_number":"pith:DN7NJRGN","canonical_record":{"source":{"id":"1507.03777","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-14T09:06:13Z","cross_cats_sorted":[],"title_canon_sha256":"e49ef2875347f01ddbdccd1ba07ccdfc58f7f2a3527a141f5d073173716576c2","abstract_canon_sha256":"2347ebe0f819336b4c5795bf6d1150ded70f7dffed4aab3b6df102f51fc048be"},"schema_version":"1.0"},"canonical_sha256":"1b7ed4c4cd5314e806d3da78242ee61851eaab281d334d0b5c2dec23583be106","source":{"kind":"arxiv","id":"1507.03777","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03777","created_at":"2026-05-18T01:25:17Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03777v2","created_at":"2026-05-18T01:25:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03777","created_at":"2026-05-18T01:25:17Z"},{"alias_kind":"pith_short_12","alias_value":"DN7NJRGNKMKO","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DN7NJRGNKMKOQBWT","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DN7NJRGN","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:DN7NJRGNKMKOQBWT3J4CILXGDB","target":"record","payload":{"canonical_record":{"source":{"id":"1507.03777","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-14T09:06:13Z","cross_cats_sorted":[],"title_canon_sha256":"e49ef2875347f01ddbdccd1ba07ccdfc58f7f2a3527a141f5d073173716576c2","abstract_canon_sha256":"2347ebe0f819336b4c5795bf6d1150ded70f7dffed4aab3b6df102f51fc048be"},"schema_version":"1.0"},"canonical_sha256":"1b7ed4c4cd5314e806d3da78242ee61851eaab281d334d0b5c2dec23583be106","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:17.960627Z","signature_b64":"At5MgJWcUsq7m3WrIWIZkOPzHaIj/FfAt4usKv3BXaD5oY167Nxglqs9JYZrmyDGSZR+wJ8e6Zz3ff1itIhLBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b7ed4c4cd5314e806d3da78242ee61851eaab281d334d0b5c2dec23583be106","last_reissued_at":"2026-05-18T01:25:17.960018Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:17.960018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.03777","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":"2026-05-18T01:25:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D7Jv35GTZq4VBjgXAWAzcsCCQm6V6+LyFIEx5y2jX6PNs+X6VaR+XHnkeTaXjjK8MMs0eFUm6YNj/EqWWW6mAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:25:57.772714Z"},"content_sha256":"d85811809bd8ef5c7c8b45f20ac7e85839b9e5e304bdfedf55a72697e5034a27","schema_version":"1.0","event_id":"sha256:d85811809bd8ef5c7c8b45f20ac7e85839b9e5e304bdfedf55a72697e5034a27"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:DN7NJRGNKMKOQBWT3J4CILXGDB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nitrogen as the best interstitial dopant among $X$=B, C, N, O and F for strong permanent magnet NdFe$_{11}$Ti$X$: First-principles study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hiori Kino, Kiyoyuki Terakura, Shoji Ishibashi, Takashi Miyake, Yosuke Harashima","submitted_at":"2015-07-14T09:06:13Z","abstract_excerpt":"We study magnetic properties of NdFe$_{11}$Ti$X$, where $X$=B, C, N, O, and F, by using the first-principles calculation based on the density functional theory. Its parent compound NdFe$_{11}$Ti has the ThMn$_{12}$ structure, which has the symmetry of space group $I4/mmm$, No. 139. The magnetization increases by doping B, C, N, O, and F at the $2b$ site of the ThMn$_{12}$ structure. The amount of the increase is larger for $X$=N, O, F than for $X$=B, C. On the other hand, the crystal field parameter $\\langle r^{2} \\rangle A_{0}^{2}$, which controls the axial magnetic anisotropy of the Nd $4f$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03777","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":"2026-05-18T01:25:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d5Zd8iReJMNtmyMnm/XoyMojHqEBlEGKpgqrde/O9TUDE70ztKWyRc1+YxawCxyZM5ARLENjoHKrQUo5bfDgBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T04:25:57.773065Z"},"content_sha256":"976718d5389ef5d628cf50ed351cba431e43aa124750886486dc2305286ca631","schema_version":"1.0","event_id":"sha256:976718d5389ef5d628cf50ed351cba431e43aa124750886486dc2305286ca631"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DN7NJRGNKMKOQBWT3J4CILXGDB/bundle.json","state_url":"https://pith.science/pith/DN7NJRGNKMKOQBWT3J4CILXGDB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DN7NJRGNKMKOQBWT3J4CILXGDB/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":"2026-05-28T04:25:57Z","links":{"resolver":"https://pith.science/pith/DN7NJRGNKMKOQBWT3J4CILXGDB","bundle":"https://pith.science/pith/DN7NJRGNKMKOQBWT3J4CILXGDB/bundle.json","state":"https://pith.science/pith/DN7NJRGNKMKOQBWT3J4CILXGDB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DN7NJRGNKMKOQBWT3J4CILXGDB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:DN7NJRGNKMKOQBWT3J4CILXGDB","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":"2347ebe0f819336b4c5795bf6d1150ded70f7dffed4aab3b6df102f51fc048be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-14T09:06:13Z","title_canon_sha256":"e49ef2875347f01ddbdccd1ba07ccdfc58f7f2a3527a141f5d073173716576c2"},"schema_version":"1.0","source":{"id":"1507.03777","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03777","created_at":"2026-05-18T01:25:17Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03777v2","created_at":"2026-05-18T01:25:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03777","created_at":"2026-05-18T01:25:17Z"},{"alias_kind":"pith_short_12","alias_value":"DN7NJRGNKMKO","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DN7NJRGNKMKOQBWT","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DN7NJRGN","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:976718d5389ef5d628cf50ed351cba431e43aa124750886486dc2305286ca631","target":"graph","created_at":"2026-05-18T01:25:17Z","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":"We study magnetic properties of NdFe$_{11}$Ti$X$, where $X$=B, C, N, O, and F, by using the first-principles calculation based on the density functional theory. Its parent compound NdFe$_{11}$Ti has the ThMn$_{12}$ structure, which has the symmetry of space group $I4/mmm$, No. 139. The magnetization increases by doping B, C, N, O, and F at the $2b$ site of the ThMn$_{12}$ structure. The amount of the increase is larger for $X$=N, O, F than for $X$=B, C. On the other hand, the crystal field parameter $\\langle r^{2} \\rangle A_{0}^{2}$, which controls the axial magnetic anisotropy of the Nd $4f$ ","authors_text":"Hiori Kino, Kiyoyuki Terakura, Shoji Ishibashi, Takashi Miyake, Yosuke Harashima","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-14T09:06:13Z","title":"Nitrogen as the best interstitial dopant among $X$=B, C, N, O and F for strong permanent magnet NdFe$_{11}$Ti$X$: First-principles study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03777","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:d85811809bd8ef5c7c8b45f20ac7e85839b9e5e304bdfedf55a72697e5034a27","target":"record","created_at":"2026-05-18T01:25:17Z","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":"2347ebe0f819336b4c5795bf6d1150ded70f7dffed4aab3b6df102f51fc048be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-14T09:06:13Z","title_canon_sha256":"e49ef2875347f01ddbdccd1ba07ccdfc58f7f2a3527a141f5d073173716576c2"},"schema_version":"1.0","source":{"id":"1507.03777","kind":"arxiv","version":2}},"canonical_sha256":"1b7ed4c4cd5314e806d3da78242ee61851eaab281d334d0b5c2dec23583be106","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b7ed4c4cd5314e806d3da78242ee61851eaab281d334d0b5c2dec23583be106","first_computed_at":"2026-05-18T01:25:17.960018Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:17.960018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"At5MgJWcUsq7m3WrIWIZkOPzHaIj/FfAt4usKv3BXaD5oY167Nxglqs9JYZrmyDGSZR+wJ8e6Zz3ff1itIhLBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:17.960627Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.03777","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d85811809bd8ef5c7c8b45f20ac7e85839b9e5e304bdfedf55a72697e5034a27","sha256:976718d5389ef5d628cf50ed351cba431e43aa124750886486dc2305286ca631"],"state_sha256":"cf2ca10d592f85a396c91658ff5d7d09070a88911b57e09c528e2f62be351a31"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XVNkKdAKbGFYSnTxddC/Tpmj8sJnwQ5N0fJxvoSscqKX4BsKuJQwXVIRPv5PvfIcew/NEcyS9bAbKMWYVXpuBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T04:25:57.775308Z","bundle_sha256":"60bc612e61697af5c5d7006329663dda478e02ced3e1e59e49be3bb3947bb561"}}