{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:YR3B2IAF633TTETM6RAAWRITEX","short_pith_number":"pith:YR3B2IAF","canonical_record":{"source":{"id":"1202.1131","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-06T13:09:28Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"b90b298cb02d6925197866c209c5b8e25e4fab2be3cd28cf79c35640091dfd17","abstract_canon_sha256":"51774bec63e6fab078bcbca6c953ec834abf45936f31202665c2870d8833fa3b"},"schema_version":"1.0"},"canonical_sha256":"c4761d2005f6f739926cf4400b451325ca0b7f21f0af2561c560013f0a77dce8","source":{"kind":"arxiv","id":"1202.1131","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1131","created_at":"2026-05-18T04:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1131v1","created_at":"2026-05-18T04:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1131","created_at":"2026-05-18T04:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"YR3B2IAF633T","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"YR3B2IAF633TTETM","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"YR3B2IAF","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:YR3B2IAF633TTETM6RAAWRITEX","target":"record","payload":{"canonical_record":{"source":{"id":"1202.1131","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-06T13:09:28Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"b90b298cb02d6925197866c209c5b8e25e4fab2be3cd28cf79c35640091dfd17","abstract_canon_sha256":"51774bec63e6fab078bcbca6c953ec834abf45936f31202665c2870d8833fa3b"},"schema_version":"1.0"},"canonical_sha256":"c4761d2005f6f739926cf4400b451325ca0b7f21f0af2561c560013f0a77dce8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:03:04.924506Z","signature_b64":"qks8lizYveH9U07XOflqAcbclkh2Ww2QipXlxWW//GeXoBUSwC7DTL5v2FIKrxX19wi/qvuMdaVc7z3lpMAxDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4761d2005f6f739926cf4400b451325ca0b7f21f0af2561c560013f0a77dce8","last_reissued_at":"2026-05-18T04:03:04.923653Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:03:04.923653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.1131","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":"2026-05-18T04:03:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"63JcyGvvZFwV8Ve9Nt9UsmjqRTt+8vk2usdiVa0FO2nHRcleSGzr2XQNUPCCgVZyLIkGu5O7k+kNmlyIaFGAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T09:43:14.143810Z"},"content_sha256":"e3f6496caab27cec6479ee4944aad1374ab69b6be7d1491127efb532ce470770","schema_version":"1.0","event_id":"sha256:e3f6496caab27cec6479ee4944aad1374ab69b6be7d1491127efb532ce470770"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:YR3B2IAF633TTETM6RAAWRITEX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Atomic level micromagnetic model of recording media switching at elevated temperatures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"cond-mat.mes-hall","authors_text":"anf J. van Ek, J. I. Mercer, J. P. Whitehead, M. L. Plumer","submitted_at":"2012-02-06T13:09:28Z","abstract_excerpt":"An atomic level micromagnetic model of granular recording media is developed and applied to examine external field-induced grain switching at elevated temperatures which captures non-uniform reversal modes. The results are compared with traditional methods which employ the Landau-Lifshitz-Gilbert equations based on uniformly magnetized grains with assigned intrinsic temperature profiles for $M(T)$ and $K(T)$. Using nominal parameters corresponding to high-anisotropy FePt-type media envisioned for Energy Assisted Magnetic Recording, our results demonstrate that atomic-level reversal slightly re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1131","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":"2026-05-18T04:03:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3B51RrhwfyWtZZDHehUVzl+XBdTQHirSWin7s8r/2TW4SL9FKzG+c/c3rkyHf1lm42PAe94p+8DHrbTGneuNCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T09:43:14.144158Z"},"content_sha256":"40f0fd7dbb93a9a8ac9a000cf30b0c868ac2a084a90261c6af62c30b7976fef6","schema_version":"1.0","event_id":"sha256:40f0fd7dbb93a9a8ac9a000cf30b0c868ac2a084a90261c6af62c30b7976fef6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YR3B2IAF633TTETM6RAAWRITEX/bundle.json","state_url":"https://pith.science/pith/YR3B2IAF633TTETM6RAAWRITEX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YR3B2IAF633TTETM6RAAWRITEX/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":"2026-06-22T09:43:14Z","links":{"resolver":"https://pith.science/pith/YR3B2IAF633TTETM6RAAWRITEX","bundle":"https://pith.science/pith/YR3B2IAF633TTETM6RAAWRITEX/bundle.json","state":"https://pith.science/pith/YR3B2IAF633TTETM6RAAWRITEX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YR3B2IAF633TTETM6RAAWRITEX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:YR3B2IAF633TTETM6RAAWRITEX","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":"51774bec63e6fab078bcbca6c953ec834abf45936f31202665c2870d8833fa3b","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-06T13:09:28Z","title_canon_sha256":"b90b298cb02d6925197866c209c5b8e25e4fab2be3cd28cf79c35640091dfd17"},"schema_version":"1.0","source":{"id":"1202.1131","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1131","created_at":"2026-05-18T04:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1131v1","created_at":"2026-05-18T04:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1131","created_at":"2026-05-18T04:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"YR3B2IAF633T","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"YR3B2IAF633TTETM","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"YR3B2IAF","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:40f0fd7dbb93a9a8ac9a000cf30b0c868ac2a084a90261c6af62c30b7976fef6","target":"graph","created_at":"2026-05-18T04:03:04Z","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":"An atomic level micromagnetic model of granular recording media is developed and applied to examine external field-induced grain switching at elevated temperatures which captures non-uniform reversal modes. The results are compared with traditional methods which employ the Landau-Lifshitz-Gilbert equations based on uniformly magnetized grains with assigned intrinsic temperature profiles for $M(T)$ and $K(T)$. Using nominal parameters corresponding to high-anisotropy FePt-type media envisioned for Energy Assisted Magnetic Recording, our results demonstrate that atomic-level reversal slightly re","authors_text":"anf J. van Ek, J. I. Mercer, J. P. Whitehead, M. L. Plumer","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-06T13:09:28Z","title":"Atomic level micromagnetic model of recording media switching at elevated temperatures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1131","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:e3f6496caab27cec6479ee4944aad1374ab69b6be7d1491127efb532ce470770","target":"record","created_at":"2026-05-18T04:03:04Z","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":"51774bec63e6fab078bcbca6c953ec834abf45936f31202665c2870d8833fa3b","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-02-06T13:09:28Z","title_canon_sha256":"b90b298cb02d6925197866c209c5b8e25e4fab2be3cd28cf79c35640091dfd17"},"schema_version":"1.0","source":{"id":"1202.1131","kind":"arxiv","version":1}},"canonical_sha256":"c4761d2005f6f739926cf4400b451325ca0b7f21f0af2561c560013f0a77dce8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4761d2005f6f739926cf4400b451325ca0b7f21f0af2561c560013f0a77dce8","first_computed_at":"2026-05-18T04:03:04.923653Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:03:04.923653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qks8lizYveH9U07XOflqAcbclkh2Ww2QipXlxWW//GeXoBUSwC7DTL5v2FIKrxX19wi/qvuMdaVc7z3lpMAxDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:03:04.924506Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.1131","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3f6496caab27cec6479ee4944aad1374ab69b6be7d1491127efb532ce470770","sha256:40f0fd7dbb93a9a8ac9a000cf30b0c868ac2a084a90261c6af62c30b7976fef6"],"state_sha256":"5ca112ae3385e91a10bd6d55d70ea07cf23d411b45089f1380cab76354ea56cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0zf1GF2c/LmIPJMEwDdVdT1/BAQSqwLS+fTHHNW+YQUNkWjLlF0i4xWSRvKUQlu3D5xscgLqsaOaU4Bbdb/BBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T09:43:14.146107Z","bundle_sha256":"36e3c46c2e3795e5c3e474db4364cf6272f7831237aabab48bb1a58e9682e128"}}