{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:QEI2LZUUTGLJDS72GMMRUKZAX3","short_pith_number":"pith:QEI2LZUU","canonical_record":{"source":{"id":"0712.4378","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2007-12-28T17:37:00Z","cross_cats_sorted":[],"title_canon_sha256":"fed05721ad63d1e3b843773543c7cf6db20125f9ffeed0392b598213db21dfe1","abstract_canon_sha256":"49f970da1cd541db8c0330328fcf6eabfa58b8a0d21e57c1de0075b3e0b51074"},"schema_version":"1.0"},"canonical_sha256":"8111a5e694999691cbfa33191a2b20bed01a5af62163e442e1cb22223f8b1614","source":{"kind":"arxiv","id":"0712.4378","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0712.4378","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"arxiv_version","alias_value":"0712.4378v1","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.4378","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_12","alias_value":"QEI2LZUUTGLJ","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_16","alias_value":"QEI2LZUUTGLJDS72","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_8","alias_value":"QEI2LZUU","created_at":"2026-07-04T17:07:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:QEI2LZUUTGLJDS72GMMRUKZAX3","target":"record","payload":{"canonical_record":{"source":{"id":"0712.4378","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2007-12-28T17:37:00Z","cross_cats_sorted":[],"title_canon_sha256":"fed05721ad63d1e3b843773543c7cf6db20125f9ffeed0392b598213db21dfe1","abstract_canon_sha256":"49f970da1cd541db8c0330328fcf6eabfa58b8a0d21e57c1de0075b3e0b51074"},"schema_version":"1.0"},"canonical_sha256":"8111a5e694999691cbfa33191a2b20bed01a5af62163e442e1cb22223f8b1614","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:07:23.376599Z","signature_b64":"IgiNM3OKETXYotcutdMFSCy+Tvk+abYSjKBCt6y+OAz1UG7quYwP/wEC47EyRWZT5TcU8PFUoUgtXQKAXULKCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8111a5e694999691cbfa33191a2b20bed01a5af62163e442e1cb22223f8b1614","last_reissued_at":"2026-07-04T17:07:23.376200Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:07:23.376200Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0712.4378","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":"2026-07-04T17:07:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IeYg8UfXqCUJ4i9ZGRn6zklrJ/twQjJwWgO6Q/+b6V8/6Qe9Fx3HVwf1mKDadQ6JGw16xWeLENqnEIhT2xO4BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T19:28:13.841439Z"},"content_sha256":"9ea90ec9e3a6d299892c05b830352002f3c44a87a820bc7fc5d7d4d2a4235255","schema_version":"1.0","event_id":"sha256:9ea90ec9e3a6d299892c05b830352002f3c44a87a820bc7fc5d7d4d2a4235255"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:QEI2LZUUTGLJDS72GMMRUKZAX3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Temperature dependence of surface magnetization in local-moment systems","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.dis-nn","authors_text":"Alireza Saffarzadeh","submitted_at":"2007-12-28T17:37:00Z","abstract_excerpt":"We present a theory to study the temperature-dependent behavior of surface states in a ferromagnetic semi-infinite crystal. Our approach is based on the single-site approximation for the \\emph{s-f} model. The effect of the semi-infinite nature of the crystal is taken into account by a localized perturbation method. Using the mean-field theory for the layer-dependent magnetization, the local density of states and the electron-spin polarization are investigated at different temperatures for ordinary and surface transition cases. The results show that the surface magnetic properties may differ st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.4378","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/0712.4378/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":"2026-07-04T17:07:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"05U3VWJ510viQebnhx3GCsi/3jAoBLOYR2X+TMIerawF+IGolJGDNr3QEGmP8bnxgK37he/1drFKsQfUAl80BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T19:28:13.841816Z"},"content_sha256":"ee2e1130efc04c0563b358197f484e41749219f10691485e82e9290f439ca532","schema_version":"1.0","event_id":"sha256:ee2e1130efc04c0563b358197f484e41749219f10691485e82e9290f439ca532"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QEI2LZUUTGLJDS72GMMRUKZAX3/bundle.json","state_url":"https://pith.science/pith/QEI2LZUUTGLJDS72GMMRUKZAX3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QEI2LZUUTGLJDS72GMMRUKZAX3/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":"2026-07-04T19:28:13Z","links":{"resolver":"https://pith.science/pith/QEI2LZUUTGLJDS72GMMRUKZAX3","bundle":"https://pith.science/pith/QEI2LZUUTGLJDS72GMMRUKZAX3/bundle.json","state":"https://pith.science/pith/QEI2LZUUTGLJDS72GMMRUKZAX3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QEI2LZUUTGLJDS72GMMRUKZAX3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:QEI2LZUUTGLJDS72GMMRUKZAX3","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":"49f970da1cd541db8c0330328fcf6eabfa58b8a0d21e57c1de0075b3e0b51074","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2007-12-28T17:37:00Z","title_canon_sha256":"fed05721ad63d1e3b843773543c7cf6db20125f9ffeed0392b598213db21dfe1"},"schema_version":"1.0","source":{"id":"0712.4378","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0712.4378","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"arxiv_version","alias_value":"0712.4378v1","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0712.4378","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_12","alias_value":"QEI2LZUUTGLJ","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_16","alias_value":"QEI2LZUUTGLJDS72","created_at":"2026-07-04T17:07:23Z"},{"alias_kind":"pith_short_8","alias_value":"QEI2LZUU","created_at":"2026-07-04T17:07:23Z"}],"graph_snapshots":[{"event_id":"sha256:ee2e1130efc04c0563b358197f484e41749219f10691485e82e9290f439ca532","target":"graph","created_at":"2026-07-04T17:07:23Z","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/0712.4378/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a theory to study the temperature-dependent behavior of surface states in a ferromagnetic semi-infinite crystal. Our approach is based on the single-site approximation for the \\emph{s-f} model. The effect of the semi-infinite nature of the crystal is taken into account by a localized perturbation method. Using the mean-field theory for the layer-dependent magnetization, the local density of states and the electron-spin polarization are investigated at different temperatures for ordinary and surface transition cases. The results show that the surface magnetic properties may differ st","authors_text":"Alireza Saffarzadeh","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2007-12-28T17:37:00Z","title":"Temperature dependence of surface magnetization in local-moment systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0712.4378","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":"sha256:9ea90ec9e3a6d299892c05b830352002f3c44a87a820bc7fc5d7d4d2a4235255","target":"record","created_at":"2026-07-04T17:07:23Z","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":"49f970da1cd541db8c0330328fcf6eabfa58b8a0d21e57c1de0075b3e0b51074","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2007-12-28T17:37:00Z","title_canon_sha256":"fed05721ad63d1e3b843773543c7cf6db20125f9ffeed0392b598213db21dfe1"},"schema_version":"1.0","source":{"id":"0712.4378","kind":"arxiv","version":1}},"canonical_sha256":"8111a5e694999691cbfa33191a2b20bed01a5af62163e442e1cb22223f8b1614","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8111a5e694999691cbfa33191a2b20bed01a5af62163e442e1cb22223f8b1614","first_computed_at":"2026-07-04T17:07:23.376200Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:07:23.376200Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IgiNM3OKETXYotcutdMFSCy+Tvk+abYSjKBCt6y+OAz1UG7quYwP/wEC47EyRWZT5TcU8PFUoUgtXQKAXULKCg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:07:23.376599Z","signed_message":"canonical_sha256_bytes"},"source_id":"0712.4378","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ea90ec9e3a6d299892c05b830352002f3c44a87a820bc7fc5d7d4d2a4235255","sha256:ee2e1130efc04c0563b358197f484e41749219f10691485e82e9290f439ca532"],"state_sha256":"4762307d84ae358515b7e3ecef6e92529850abfac88dd15686b3d4ae8c282011"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bNRkpny73dH4kefY50SYWklLtnKf8at30yjWGaEgE1vhmyJhDaJOXJTOrwFGoX8vDT73mx6RW0WXFDiEa9fTDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T19:28:13.843891Z","bundle_sha256":"f194bb3c7d14dfd38de6992510df25761dcff680b719966e5e86e6233511646b"}}