{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:QOZAKG3L52CPMCLPPXHLS6YAE5","short_pith_number":"pith:QOZAKG3L","canonical_record":{"source":{"id":"1001.2322","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-01-13T22:30:10Z","cross_cats_sorted":[],"title_canon_sha256":"0796ab1637aa0a9e6651549594d39cb7652783428ec54ca54433df8f113c9fb9","abstract_canon_sha256":"ed19f9cfd8e171cf3125e3c60c57eb182f9034f4bc49e6653ca4e32e0297f130"},"schema_version":"1.0"},"canonical_sha256":"83b2051b6bee84f6096f7dceb97b00277c87bf9acffcb7c32eafa07ddec0134f","source":{"kind":"arxiv","id":"1001.2322","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.2322","created_at":"2026-05-18T03:23:49Z"},{"alias_kind":"arxiv_version","alias_value":"1001.2322v1","created_at":"2026-05-18T03:23:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.2322","created_at":"2026-05-18T03:23:49Z"},{"alias_kind":"pith_short_12","alias_value":"QOZAKG3L52CP","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QOZAKG3L52CPMCLP","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QOZAKG3L","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:QOZAKG3L52CPMCLPPXHLS6YAE5","target":"record","payload":{"canonical_record":{"source":{"id":"1001.2322","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-01-13T22:30:10Z","cross_cats_sorted":[],"title_canon_sha256":"0796ab1637aa0a9e6651549594d39cb7652783428ec54ca54433df8f113c9fb9","abstract_canon_sha256":"ed19f9cfd8e171cf3125e3c60c57eb182f9034f4bc49e6653ca4e32e0297f130"},"schema_version":"1.0"},"canonical_sha256":"83b2051b6bee84f6096f7dceb97b00277c87bf9acffcb7c32eafa07ddec0134f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:23:49.507658Z","signature_b64":"Q0l/BMNQE93Ojn5sRGff4EE7dx/4SfxFPyZ4E+SDSJwiyfKNeFTzx213dxhg5o5zIUTiltSLzzNkr8M1ziJ/Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"83b2051b6bee84f6096f7dceb97b00277c87bf9acffcb7c32eafa07ddec0134f","last_reissued_at":"2026-05-18T03:23:49.507035Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:23:49.507035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1001.2322","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":"2026-05-18T03:23:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Q2ENgd2PY4grBoCqEdVEbyTY17kE0iEtVlqxsYwGfm4k3Kkbh5VmRhxtS42ssJ8pWjex2gATsjmkGZemmKlDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:04:32.515245Z"},"content_sha256":"162297ec30e097d2bcd1528572f1908a96a2e96c2650cc883f39a89699647fd0","schema_version":"1.0","event_id":"sha256:162297ec30e097d2bcd1528572f1908a96a2e96c2650cc883f39a89699647fd0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:QOZAKG3L52CPMCLPPXHLS6YAE5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tailoring tunnel magnetoresistance by ultrathin Cr and Co interlayers: A first-principles investigation of Fe/MgO/Fe junctions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"I. Mertig, J. Henk, P. Bose, P. Zahn","submitted_at":"2010-01-13T22:30:10Z","abstract_excerpt":"We report on systematic ab-initio investigations of Co and Cr interlayers embedded in Fe(001)/MgO/Fe(001) magnetic tunnel junctions, focusing on the changes of the electronic structure and the transport properties with interlayer thickness. The results of spin-dependent ballistic transport calculations reveal options to specifically manipulate the tunnel magnetoresistance ratio. The resistance area products and the tunnel magnetoresistance ratios show a monotonous trend with distinct oscillations as a function of the Cr thickness. These modulations are directly addressed and interpreted by mea"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.2322","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":"2026-05-18T03:23:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pb4dpJnjwPvxtrGx7/cxCt/sVEKp4tYyj/IF6ZYHRMAk+bDFHQ7EIrHbRw1qvomYNborlT1xJv97F/GFFb7xCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T07:04:32.515897Z"},"content_sha256":"5a9154f556ffdc5b696082536126f2bc493748008ca5ea8231609950dab17c01","schema_version":"1.0","event_id":"sha256:5a9154f556ffdc5b696082536126f2bc493748008ca5ea8231609950dab17c01"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QOZAKG3L52CPMCLPPXHLS6YAE5/bundle.json","state_url":"https://pith.science/pith/QOZAKG3L52CPMCLPPXHLS6YAE5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QOZAKG3L52CPMCLPPXHLS6YAE5/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":"2026-05-27T07:04:32Z","links":{"resolver":"https://pith.science/pith/QOZAKG3L52CPMCLPPXHLS6YAE5","bundle":"https://pith.science/pith/QOZAKG3L52CPMCLPPXHLS6YAE5/bundle.json","state":"https://pith.science/pith/QOZAKG3L52CPMCLPPXHLS6YAE5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QOZAKG3L52CPMCLPPXHLS6YAE5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:QOZAKG3L52CPMCLPPXHLS6YAE5","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":"ed19f9cfd8e171cf3125e3c60c57eb182f9034f4bc49e6653ca4e32e0297f130","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-01-13T22:30:10Z","title_canon_sha256":"0796ab1637aa0a9e6651549594d39cb7652783428ec54ca54433df8f113c9fb9"},"schema_version":"1.0","source":{"id":"1001.2322","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.2322","created_at":"2026-05-18T03:23:49Z"},{"alias_kind":"arxiv_version","alias_value":"1001.2322v1","created_at":"2026-05-18T03:23:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.2322","created_at":"2026-05-18T03:23:49Z"},{"alias_kind":"pith_short_12","alias_value":"QOZAKG3L52CP","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"QOZAKG3L52CPMCLP","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"QOZAKG3L","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:5a9154f556ffdc5b696082536126f2bc493748008ca5ea8231609950dab17c01","target":"graph","created_at":"2026-05-18T03:23:49Z","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 report on systematic ab-initio investigations of Co and Cr interlayers embedded in Fe(001)/MgO/Fe(001) magnetic tunnel junctions, focusing on the changes of the electronic structure and the transport properties with interlayer thickness. The results of spin-dependent ballistic transport calculations reveal options to specifically manipulate the tunnel magnetoresistance ratio. The resistance area products and the tunnel magnetoresistance ratios show a monotonous trend with distinct oscillations as a function of the Cr thickness. These modulations are directly addressed and interpreted by mea","authors_text":"I. Mertig, J. Henk, P. Bose, P. Zahn","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-01-13T22:30:10Z","title":"Tailoring tunnel magnetoresistance by ultrathin Cr and Co interlayers: A first-principles investigation of Fe/MgO/Fe junctions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.2322","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":"sha256:162297ec30e097d2bcd1528572f1908a96a2e96c2650cc883f39a89699647fd0","target":"record","created_at":"2026-05-18T03:23:49Z","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":"ed19f9cfd8e171cf3125e3c60c57eb182f9034f4bc49e6653ca4e32e0297f130","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-01-13T22:30:10Z","title_canon_sha256":"0796ab1637aa0a9e6651549594d39cb7652783428ec54ca54433df8f113c9fb9"},"schema_version":"1.0","source":{"id":"1001.2322","kind":"arxiv","version":1}},"canonical_sha256":"83b2051b6bee84f6096f7dceb97b00277c87bf9acffcb7c32eafa07ddec0134f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"83b2051b6bee84f6096f7dceb97b00277c87bf9acffcb7c32eafa07ddec0134f","first_computed_at":"2026-05-18T03:23:49.507035Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:23:49.507035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q0l/BMNQE93Ojn5sRGff4EE7dx/4SfxFPyZ4E+SDSJwiyfKNeFTzx213dxhg5o5zIUTiltSLzzNkr8M1ziJ/Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:23:49.507658Z","signed_message":"canonical_sha256_bytes"},"source_id":"1001.2322","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:162297ec30e097d2bcd1528572f1908a96a2e96c2650cc883f39a89699647fd0","sha256:5a9154f556ffdc5b696082536126f2bc493748008ca5ea8231609950dab17c01"],"state_sha256":"8e0b84c4f0ecef9e6c124bf1032ba6011432717dc63495e82a2ae05865fb51e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"if+dG+NXdqf/NQRkO33tVVV2Zfk++ki1sXL+uqNoLmi/JJQkiqtHMqa27dR9ziLMhSGRlMvZKs4hOFdtlswdAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T07:04:32.518613Z","bundle_sha256":"6a0ab91dea964ad46f8f5db905b7531b37260f46bb5e72edc653377e0d90a151"}}