{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:6SZPJJUEKZ5R6STZ52EQ5ZAQTI","short_pith_number":"pith:6SZPJJUE","canonical_record":{"source":{"id":"1612.04478","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-12-14T04:05:38Z","cross_cats_sorted":[],"title_canon_sha256":"47cd60554c54270e3962b4b71d2b74269c15923f54565046b0208e93914d91b7","abstract_canon_sha256":"14e3ab65f5251872ec998158e9c23599451a5b600725363e9e61913f45b71aa3"},"schema_version":"1.0"},"canonical_sha256":"f4b2f4a684567b1f4a79ee890ee4109a062ce0c00cd6cf159eb0138b19d86ae1","source":{"kind":"arxiv","id":"1612.04478","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.04478","created_at":"2026-05-18T00:21:51Z"},{"alias_kind":"arxiv_version","alias_value":"1612.04478v5","created_at":"2026-05-18T00:21:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.04478","created_at":"2026-05-18T00:21:51Z"},{"alias_kind":"pith_short_12","alias_value":"6SZPJJUEKZ5R","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"6SZPJJUEKZ5R6STZ","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"6SZPJJUE","created_at":"2026-05-18T12:30:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:6SZPJJUEKZ5R6STZ52EQ5ZAQTI","target":"record","payload":{"canonical_record":{"source":{"id":"1612.04478","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-12-14T04:05:38Z","cross_cats_sorted":[],"title_canon_sha256":"47cd60554c54270e3962b4b71d2b74269c15923f54565046b0208e93914d91b7","abstract_canon_sha256":"14e3ab65f5251872ec998158e9c23599451a5b600725363e9e61913f45b71aa3"},"schema_version":"1.0"},"canonical_sha256":"f4b2f4a684567b1f4a79ee890ee4109a062ce0c00cd6cf159eb0138b19d86ae1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:51.467716Z","signature_b64":"lreI8ZyPBDLfBqwTuzFBV06420d9K1cdKWJFUbTcR5m32usAEAssyevcsp5rsIuOFl9q1RbkB86KmvfaP8SmCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f4b2f4a684567b1f4a79ee890ee4109a062ce0c00cd6cf159eb0138b19d86ae1","last_reissued_at":"2026-05-18T00:21:51.467095Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:51.467095Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.04478","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:21:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tWyjtv/Bm5Uj9BJjWPye0duHEglCkS0dluPoZwlz8VyfQN16+HTNF87n5M3M+oVZzx6/ZwW7QKTPsTcU/TixDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:37:43.862752Z"},"content_sha256":"bbe008672bfd5616c143f9d4f1be867039373b37bbf527d625d7bfc62e69119d","schema_version":"1.0","event_id":"sha256:bbe008672bfd5616c143f9d4f1be867039373b37bbf527d625d7bfc62e69119d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:6SZPJJUEKZ5R6STZ52EQ5ZAQTI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First-principles study of intersite magnetic couplings in NdFe$_{12}$ and NdFe$_{12}$X (X = B, C, N, O, F)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hisazumi Akai, Takashi Miyake, Taro Fukazawa, Yosuke Harashima","submitted_at":"2016-12-14T04:05:38Z","abstract_excerpt":"We present a first-principles investigation of NdFe$_{12}$ and NdFe$_{12}$X (X = B, C, N, O, F) crystals with the ThMn$_{12}$ structure. Intersite magnetic couplings in these compounds, so-called exchange couplings, are estimated by Liechtenstein's method. It is found that the Nd--Fe couplings are sensitive to the interstitial dopant X, with the Nd--Fe(8j) coupling in particular reduced significantly for X = N. This suggests that the magnetocrystalline anisotropy decays quickly with rising temperature in the X = N system although nitrogenation has advantages over the other dopants in terms of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.04478","kind":"arxiv","version":5},"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":"2026-05-18T00:21:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wmf9y5bdLGjiykHPBiIM1x1qlIgcLsTDMYCcrhl8R2TqqNx0YOHhluQiLyXbLziJ08ASVxe6JKQDpmg2Dk5wDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:37:43.863339Z"},"content_sha256":"ad7477a9276e961b779d96c1b16f4fc83828d83ec26c32c47e21dcace648476b","schema_version":"1.0","event_id":"sha256:ad7477a9276e961b779d96c1b16f4fc83828d83ec26c32c47e21dcace648476b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6SZPJJUEKZ5R6STZ52EQ5ZAQTI/bundle.json","state_url":"https://pith.science/pith/6SZPJJUEKZ5R6STZ52EQ5ZAQTI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6SZPJJUEKZ5R6STZ52EQ5ZAQTI/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":"2026-05-28T07:37:43Z","links":{"resolver":"https://pith.science/pith/6SZPJJUEKZ5R6STZ52EQ5ZAQTI","bundle":"https://pith.science/pith/6SZPJJUEKZ5R6STZ52EQ5ZAQTI/bundle.json","state":"https://pith.science/pith/6SZPJJUEKZ5R6STZ52EQ5ZAQTI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6SZPJJUEKZ5R6STZ52EQ5ZAQTI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:6SZPJJUEKZ5R6STZ52EQ5ZAQTI","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":"14e3ab65f5251872ec998158e9c23599451a5b600725363e9e61913f45b71aa3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-12-14T04:05:38Z","title_canon_sha256":"47cd60554c54270e3962b4b71d2b74269c15923f54565046b0208e93914d91b7"},"schema_version":"1.0","source":{"id":"1612.04478","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.04478","created_at":"2026-05-18T00:21:51Z"},{"alias_kind":"arxiv_version","alias_value":"1612.04478v5","created_at":"2026-05-18T00:21:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.04478","created_at":"2026-05-18T00:21:51Z"},{"alias_kind":"pith_short_12","alias_value":"6SZPJJUEKZ5R","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_16","alias_value":"6SZPJJUEKZ5R6STZ","created_at":"2026-05-18T12:30:04Z"},{"alias_kind":"pith_short_8","alias_value":"6SZPJJUE","created_at":"2026-05-18T12:30:04Z"}],"graph_snapshots":[{"event_id":"sha256:ad7477a9276e961b779d96c1b16f4fc83828d83ec26c32c47e21dcace648476b","target":"graph","created_at":"2026-05-18T00:21:51Z","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 present a first-principles investigation of NdFe$_{12}$ and NdFe$_{12}$X (X = B, C, N, O, F) crystals with the ThMn$_{12}$ structure. Intersite magnetic couplings in these compounds, so-called exchange couplings, are estimated by Liechtenstein's method. It is found that the Nd--Fe couplings are sensitive to the interstitial dopant X, with the Nd--Fe(8j) coupling in particular reduced significantly for X = N. This suggests that the magnetocrystalline anisotropy decays quickly with rising temperature in the X = N system although nitrogenation has advantages over the other dopants in terms of ","authors_text":"Hisazumi Akai, Takashi Miyake, Taro Fukazawa, Yosuke Harashima","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-12-14T04:05:38Z","title":"First-principles study of intersite magnetic couplings in NdFe$_{12}$ and NdFe$_{12}$X (X = B, C, N, O, F)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.04478","kind":"arxiv","version":5},"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:bbe008672bfd5616c143f9d4f1be867039373b37bbf527d625d7bfc62e69119d","target":"record","created_at":"2026-05-18T00:21:51Z","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":"14e3ab65f5251872ec998158e9c23599451a5b600725363e9e61913f45b71aa3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-12-14T04:05:38Z","title_canon_sha256":"47cd60554c54270e3962b4b71d2b74269c15923f54565046b0208e93914d91b7"},"schema_version":"1.0","source":{"id":"1612.04478","kind":"arxiv","version":5}},"canonical_sha256":"f4b2f4a684567b1f4a79ee890ee4109a062ce0c00cd6cf159eb0138b19d86ae1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f4b2f4a684567b1f4a79ee890ee4109a062ce0c00cd6cf159eb0138b19d86ae1","first_computed_at":"2026-05-18T00:21:51.467095Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:51.467095Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lreI8ZyPBDLfBqwTuzFBV06420d9K1cdKWJFUbTcR5m32usAEAssyevcsp5rsIuOFl9q1RbkB86KmvfaP8SmCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:51.467716Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.04478","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bbe008672bfd5616c143f9d4f1be867039373b37bbf527d625d7bfc62e69119d","sha256:ad7477a9276e961b779d96c1b16f4fc83828d83ec26c32c47e21dcace648476b"],"state_sha256":"ee910e034f4899eebbe1f83487b1ebc7252207c6ad1708bf9cb52018fe317ea5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"prUJcP9GxMEJcgIWN1yk2Gj36a0gwmALe1oMCCxm4lKMt3CCMSprUquhEMgmAlSa7Y+zOeC/ktQ8y4oCOsitBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:37:43.865416Z","bundle_sha256":"26101b14a6194d3ae2200ce08a4d2cd9f5a1614fee75d21c5457bf802e2af151"}}