{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:U4SOOMTHJWU3JYN7K5I3HVQTUL","short_pith_number":"pith:U4SOOMTH","canonical_record":{"source":{"id":"1803.10406","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-03-28T04:07:23Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"f72479dfa75526c814c459293e2308645cdf2441bd363232ed19cf0dc8c7431b","abstract_canon_sha256":"864bdcd747242e1dcdee8a8f24c5593d478179ed9f0c7d382124104fe975fb24"},"schema_version":"1.0"},"canonical_sha256":"a724e732674da9b4e1bf5751b3d613a2f2d412f9349d92e26d370a9e624a084e","source":{"kind":"arxiv","id":"1803.10406","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.10406","created_at":"2026-05-18T00:06:04Z"},{"alias_kind":"arxiv_version","alias_value":"1803.10406v1","created_at":"2026-05-18T00:06:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.10406","created_at":"2026-05-18T00:06:04Z"},{"alias_kind":"pith_short_12","alias_value":"U4SOOMTHJWU3","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"U4SOOMTHJWU3JYN7","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"U4SOOMTH","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:U4SOOMTHJWU3JYN7K5I3HVQTUL","target":"record","payload":{"canonical_record":{"source":{"id":"1803.10406","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-03-28T04:07:23Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"f72479dfa75526c814c459293e2308645cdf2441bd363232ed19cf0dc8c7431b","abstract_canon_sha256":"864bdcd747242e1dcdee8a8f24c5593d478179ed9f0c7d382124104fe975fb24"},"schema_version":"1.0"},"canonical_sha256":"a724e732674da9b4e1bf5751b3d613a2f2d412f9349d92e26d370a9e624a084e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:04.675574Z","signature_b64":"gehDX9zmzBYKsyOEBp49MnxCg2nTJz5EtW6mxrZ6wM3heOnr1c34K9Z+WRV/ntegfUIzcGIPI5XFffYrMOODBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a724e732674da9b4e1bf5751b3d613a2f2d412f9349d92e26d370a9e624a084e","last_reissued_at":"2026-05-18T00:06:04.675116Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:04.675116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.10406","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":"2026-05-18T00:06:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DR6NafezS0iTAKcIsdIXULVs6EVFTMJURTGtshHcdXkQWU3t7BgQqIA3wf4Yow+7rwc83Xi48nwm8pK2EiViAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T12:35:44.150452Z"},"content_sha256":"deab8396246c378c822dd9cb534a6f47d961c3f4540b3302866329b9d357d8aa","schema_version":"1.0","event_id":"sha256:deab8396246c378c822dd9cb534a6f47d961c3f4540b3302866329b9d357d8aa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:U4SOOMTHJWU3JYN7K5I3HVQTUL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effective anisotropy due to the surface of magnetic nanoparticles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.mes-hall","authors_text":"D. A. Garanin","submitted_at":"2018-03-28T04:07:23Z","abstract_excerpt":"Analytical solution has been found for the second-order effective anisotropy of magnetic nanoparticles of a cubic shape due to the surface anisotropy (SA) of the N\\'eel type. Similarly to the spherical particles, for the simple cubic lattice the grand-diagonal directions $\\left(\\pm1,\\pm1,\\pm1\\right)$ are favored by the effective cubic anisotropy but the effect is twice as strong. Uniaxial core anisotropy and applied magnetic field cause screening of perturbations from the surface at the distance of the domain-wall width and reduce the effect of SA near the energy minima. However, screening dis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.10406","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":""},"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":"2026-05-18T00:06:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ODcsw4Lqns1/RrgzHAV/CSWDbxCG1PNlCJvLJyON0fRBHxXV6P2JHCFAk2LlzvEh42dxxfrDzKEjjueSfW1kDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T12:35:44.150801Z"},"content_sha256":"4a7cc637e07b510885c9e0c4da402e8611666cda16ad21d071e9f72a25b11e33","schema_version":"1.0","event_id":"sha256:4a7cc637e07b510885c9e0c4da402e8611666cda16ad21d071e9f72a25b11e33"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U4SOOMTHJWU3JYN7K5I3HVQTUL/bundle.json","state_url":"https://pith.science/pith/U4SOOMTHJWU3JYN7K5I3HVQTUL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U4SOOMTHJWU3JYN7K5I3HVQTUL/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":"2026-05-28T12:35:44Z","links":{"resolver":"https://pith.science/pith/U4SOOMTHJWU3JYN7K5I3HVQTUL","bundle":"https://pith.science/pith/U4SOOMTHJWU3JYN7K5I3HVQTUL/bundle.json","state":"https://pith.science/pith/U4SOOMTHJWU3JYN7K5I3HVQTUL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U4SOOMTHJWU3JYN7K5I3HVQTUL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:U4SOOMTHJWU3JYN7K5I3HVQTUL","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":"864bdcd747242e1dcdee8a8f24c5593d478179ed9f0c7d382124104fe975fb24","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-03-28T04:07:23Z","title_canon_sha256":"f72479dfa75526c814c459293e2308645cdf2441bd363232ed19cf0dc8c7431b"},"schema_version":"1.0","source":{"id":"1803.10406","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.10406","created_at":"2026-05-18T00:06:04Z"},{"alias_kind":"arxiv_version","alias_value":"1803.10406v1","created_at":"2026-05-18T00:06:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.10406","created_at":"2026-05-18T00:06:04Z"},{"alias_kind":"pith_short_12","alias_value":"U4SOOMTHJWU3","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"U4SOOMTHJWU3JYN7","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"U4SOOMTH","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:4a7cc637e07b510885c9e0c4da402e8611666cda16ad21d071e9f72a25b11e33","target":"graph","created_at":"2026-05-18T00:06:04Z","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":"Analytical solution has been found for the second-order effective anisotropy of magnetic nanoparticles of a cubic shape due to the surface anisotropy (SA) of the N\\'eel type. Similarly to the spherical particles, for the simple cubic lattice the grand-diagonal directions $\\left(\\pm1,\\pm1,\\pm1\\right)$ are favored by the effective cubic anisotropy but the effect is twice as strong. Uniaxial core anisotropy and applied magnetic field cause screening of perturbations from the surface at the distance of the domain-wall width and reduce the effect of SA near the energy minima. However, screening dis","authors_text":"D. A. Garanin","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-03-28T04:07:23Z","title":"Effective anisotropy due to the surface of magnetic nanoparticles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.10406","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:deab8396246c378c822dd9cb534a6f47d961c3f4540b3302866329b9d357d8aa","target":"record","created_at":"2026-05-18T00:06:04Z","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":"864bdcd747242e1dcdee8a8f24c5593d478179ed9f0c7d382124104fe975fb24","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-03-28T04:07:23Z","title_canon_sha256":"f72479dfa75526c814c459293e2308645cdf2441bd363232ed19cf0dc8c7431b"},"schema_version":"1.0","source":{"id":"1803.10406","kind":"arxiv","version":1}},"canonical_sha256":"a724e732674da9b4e1bf5751b3d613a2f2d412f9349d92e26d370a9e624a084e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a724e732674da9b4e1bf5751b3d613a2f2d412f9349d92e26d370a9e624a084e","first_computed_at":"2026-05-18T00:06:04.675116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:04.675116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gehDX9zmzBYKsyOEBp49MnxCg2nTJz5EtW6mxrZ6wM3heOnr1c34K9Z+WRV/ntegfUIzcGIPI5XFffYrMOODBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:04.675574Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.10406","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:deab8396246c378c822dd9cb534a6f47d961c3f4540b3302866329b9d357d8aa","sha256:4a7cc637e07b510885c9e0c4da402e8611666cda16ad21d071e9f72a25b11e33"],"state_sha256":"140c13ea5d287883948e932c66aa5493f2f3da26618871dd2b52e1be274c3218"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wMGwxTvJu7HwcDseZx/YgjPK0vtWYeu41tPX3sr9XrlOdao4ptfqcLNtrruhq/dV//gJeYrbONeMLyd2GoPfAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T12:35:44.152712Z","bundle_sha256":"e680aea7b66474f35b5533e5eb6a9c4c0b14ef9f31ff09f3d67bbfb3c738f792"}}