{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:ANWS3X6O6KA7K4Q5GP6OULWWFL","short_pith_number":"pith:ANWS3X6O","canonical_record":{"source":{"id":"2212.12065","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-22T22:40:48Z","cross_cats_sorted":[],"title_canon_sha256":"12cecfa1fa7d01450d078800dd442c491c4420dff7fc29eaff30f61deed9d46c","abstract_canon_sha256":"e84fb054947d0d30ee15fddae61362428d636ffbfae6175e461bc04bb3999ad3"},"schema_version":"1.0"},"canonical_sha256":"036d2ddfcef281f5721d33fcea2ed62ad957661695aed09b57a099edc1c35efa","source":{"kind":"arxiv","id":"2212.12065","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.12065","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"arxiv_version","alias_value":"2212.12065v1","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.12065","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"pith_short_12","alias_value":"ANWS3X6O6KA7","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"pith_short_16","alias_value":"ANWS3X6O6KA7K4Q5","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"pith_short_8","alias_value":"ANWS3X6O","created_at":"2026-07-05T06:00:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:ANWS3X6O6KA7K4Q5GP6OULWWFL","target":"record","payload":{"canonical_record":{"source":{"id":"2212.12065","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-22T22:40:48Z","cross_cats_sorted":[],"title_canon_sha256":"12cecfa1fa7d01450d078800dd442c491c4420dff7fc29eaff30f61deed9d46c","abstract_canon_sha256":"e84fb054947d0d30ee15fddae61362428d636ffbfae6175e461bc04bb3999ad3"},"schema_version":"1.0"},"canonical_sha256":"036d2ddfcef281f5721d33fcea2ed62ad957661695aed09b57a099edc1c35efa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:00:15.547531Z","signature_b64":"T3zRFcVFh229049YYAB85A3ko1eApQaA5isNIKd4QqXwMGzyRu1zVEd1uDImFbc0wXHmoF9PK4RtFHYZU801Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"036d2ddfcef281f5721d33fcea2ed62ad957661695aed09b57a099edc1c35efa","last_reissued_at":"2026-07-05T06:00:15.547000Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:00:15.547000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.12065","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":"2026-07-05T06:00:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dBHQrfFprUT8rCpT3a1/T8Z5JyYt/uFfwo3wyhnvmGS/DrECmcFoxhOtZaUySc7/r1rBQElZbGjzNlPp182QDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T06:34:37.999423Z"},"content_sha256":"6e92193d80875461b1237ee14cce9de95657feca8924990a14071be0866f7397","schema_version":"1.0","event_id":"sha256:6e92193d80875461b1237ee14cce9de95657feca8924990a14071be0866f7397"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:ANWS3X6O6KA7K4Q5GP6OULWWFL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lattice constants and magnetism of L10-ordered FePt under high pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"H. Fukui, H. Maruyama, H. Wadati, K. Okai, K. Takanashi, N. Hirao, N. Ishimatsu, N. Kawamura, R. Takahashi, S. Kawaguchi, S. Ohmura, S. Sawada, T. Seki","submitted_at":"2022-12-22T22:40:48Z","abstract_excerpt":"We studied the relationship between the lattice constant and magnetism of L10-ordered FePt under high pressure by means of first-principles calculations and synchrotron x-ray measurements. Based on our calculations, we found that the c/a ratio shows an anomaly at ~ 20 GPa and that the Pt magnetic moment is sharply suppressed at ~ 60 GPa. As for the c/a, we experimentally verified the anomaly at ~ 20 GPa by powder x-ray diffraction. We also measured the x-ray magnetic circular dichroism at the Pt L edge up to ~ 20 GPa. Any significant change of the Pt magnetic moment was not observed, in agreem"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.12065","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2212.12065/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T06:00:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x5E00czf1pxyXwX2sujeB2Ead/6AUYAWID9ZtFuMfapy7jLaU4JWruia+NFHyyBCAtryQJRf8o6z5QL7ALVAAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-25T06:34:37.999843Z"},"content_sha256":"dfecc2056d71964d670a673eaefa9a9ad7a86e7e0661016904edd77a17919915","schema_version":"1.0","event_id":"sha256:dfecc2056d71964d670a673eaefa9a9ad7a86e7e0661016904edd77a17919915"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ANWS3X6O6KA7K4Q5GP6OULWWFL/bundle.json","state_url":"https://pith.science/pith/ANWS3X6O6KA7K4Q5GP6OULWWFL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ANWS3X6O6KA7K4Q5GP6OULWWFL/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":"2026-07-25T06:34:38Z","links":{"resolver":"https://pith.science/pith/ANWS3X6O6KA7K4Q5GP6OULWWFL","bundle":"https://pith.science/pith/ANWS3X6O6KA7K4Q5GP6OULWWFL/bundle.json","state":"https://pith.science/pith/ANWS3X6O6KA7K4Q5GP6OULWWFL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ANWS3X6O6KA7K4Q5GP6OULWWFL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:ANWS3X6O6KA7K4Q5GP6OULWWFL","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":"e84fb054947d0d30ee15fddae61362428d636ffbfae6175e461bc04bb3999ad3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-22T22:40:48Z","title_canon_sha256":"12cecfa1fa7d01450d078800dd442c491c4420dff7fc29eaff30f61deed9d46c"},"schema_version":"1.0","source":{"id":"2212.12065","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.12065","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"arxiv_version","alias_value":"2212.12065v1","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.12065","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"pith_short_12","alias_value":"ANWS3X6O6KA7","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"pith_short_16","alias_value":"ANWS3X6O6KA7K4Q5","created_at":"2026-07-05T06:00:15Z"},{"alias_kind":"pith_short_8","alias_value":"ANWS3X6O","created_at":"2026-07-05T06:00:15Z"}],"graph_snapshots":[{"event_id":"sha256:dfecc2056d71964d670a673eaefa9a9ad7a86e7e0661016904edd77a17919915","target":"graph","created_at":"2026-07-05T06:00:15Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2212.12065/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We studied the relationship between the lattice constant and magnetism of L10-ordered FePt under high pressure by means of first-principles calculations and synchrotron x-ray measurements. Based on our calculations, we found that the c/a ratio shows an anomaly at ~ 20 GPa and that the Pt magnetic moment is sharply suppressed at ~ 60 GPa. As for the c/a, we experimentally verified the anomaly at ~ 20 GPa by powder x-ray diffraction. We also measured the x-ray magnetic circular dichroism at the Pt L edge up to ~ 20 GPa. Any significant change of the Pt magnetic moment was not observed, in agreem","authors_text":"H. Fukui, H. Maruyama, H. Wadati, K. Okai, K. Takanashi, N. Hirao, N. Ishimatsu, N. Kawamura, R. Takahashi, S. Kawaguchi, S. Ohmura, S. Sawada, T. Seki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-22T22:40:48Z","title":"Lattice constants and magnetism of L10-ordered FePt under high pressure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.12065","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":"sha256:6e92193d80875461b1237ee14cce9de95657feca8924990a14071be0866f7397","target":"record","created_at":"2026-07-05T06:00:15Z","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":"e84fb054947d0d30ee15fddae61362428d636ffbfae6175e461bc04bb3999ad3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-22T22:40:48Z","title_canon_sha256":"12cecfa1fa7d01450d078800dd442c491c4420dff7fc29eaff30f61deed9d46c"},"schema_version":"1.0","source":{"id":"2212.12065","kind":"arxiv","version":1}},"canonical_sha256":"036d2ddfcef281f5721d33fcea2ed62ad957661695aed09b57a099edc1c35efa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"036d2ddfcef281f5721d33fcea2ed62ad957661695aed09b57a099edc1c35efa","first_computed_at":"2026-07-05T06:00:15.547000Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:00:15.547000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T3zRFcVFh229049YYAB85A3ko1eApQaA5isNIKd4QqXwMGzyRu1zVEd1uDImFbc0wXHmoF9PK4RtFHYZU801Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:00:15.547531Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.12065","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e92193d80875461b1237ee14cce9de95657feca8924990a14071be0866f7397","sha256:dfecc2056d71964d670a673eaefa9a9ad7a86e7e0661016904edd77a17919915"],"state_sha256":"106c695a3af1630ccbb0743ed8a5de6cb95bd4f338a58e43f30d4cfccc1f7ff3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nAfWWMWGW9k7IV8dLXEI8GB3kHOkAduNRN/Zc5x5Dtfs9e5M44Bg38fvI1uwQTmuWECxbCiLfLsNxmIEi0UTAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-25T06:34:38.002472Z","bundle_sha256":"b259304e2521a5f7ba9f2133fd25ccce8b437a136b74d70ac01891501690c596"}}