{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:KGXTFL5FYY5NJGZWHMRVINBPUA","short_pith_number":"pith:KGXTFL5F","canonical_record":{"source":{"id":"1407.5431","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-21T09:32:46Z","cross_cats_sorted":[],"title_canon_sha256":"f4bc26db0bd022900c52c1c4117094f5d2a5c75b0e6306dcc2a82e6fc26ae112","abstract_canon_sha256":"5c6b21f550b4000e1798c44e4e801a433ce74a76135d1d45e9848c35b3730bd3"},"schema_version":"1.0"},"canonical_sha256":"51af32afa5c63ad49b363b2354342fa0278e5f010aa3a2b29608bae5f97e793b","source":{"kind":"arxiv","id":"1407.5431","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5431","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5431v1","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5431","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"KGXTFL5FYY5N","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KGXTFL5FYY5NJGZW","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KGXTFL5F","created_at":"2026-05-18T12:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:KGXTFL5FYY5NJGZWHMRVINBPUA","target":"record","payload":{"canonical_record":{"source":{"id":"1407.5431","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-21T09:32:46Z","cross_cats_sorted":[],"title_canon_sha256":"f4bc26db0bd022900c52c1c4117094f5d2a5c75b0e6306dcc2a82e6fc26ae112","abstract_canon_sha256":"5c6b21f550b4000e1798c44e4e801a433ce74a76135d1d45e9848c35b3730bd3"},"schema_version":"1.0"},"canonical_sha256":"51af32afa5c63ad49b363b2354342fa0278e5f010aa3a2b29608bae5f97e793b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:13.989103Z","signature_b64":"/CNo3z7FGbeUYG+1LXFfPPFnhiEdxp046w6GvIqgiNKJBOten0QLzMDsymqPvFCQcbzyDt+MXYbKZgNaz5LTCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"51af32afa5c63ad49b363b2354342fa0278e5f010aa3a2b29608bae5f97e793b","last_reissued_at":"2026-05-18T02:47:13.988634Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:13.988634Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1407.5431","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":"2026-05-18T02:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3Cfri12l2xLHU5hUT4sZSuglc7h9ODwk1KB/ZuwCGCUhWDTW1bVHqJWK4lFYoFV4xgBUM3Z9EooK+IaeU3n4Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:37:10.059156Z"},"content_sha256":"0313f0ec65f11a1f6f6200e6a4e6656aa2bf9131a1bbed927741988bae227eef","schema_version":"1.0","event_id":"sha256:0313f0ec65f11a1f6f6200e6a4e6656aa2bf9131a1bbed927741988bae227eef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:KGXTFL5FYY5NJGZWHMRVINBPUA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct epitaxial integration of the ferromagnetic semiconductor EuO with silicon for spintronic applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexey E. Primenko, Andrey M. Tokmachev, Dmitry V. Averyanov, Igor A. Likhachev, Peter E. Teterin, Vyacheslav G. Storchak, Yuri G. Sadofyev","submitted_at":"2014-07-21T09:32:46Z","abstract_excerpt":"Materials in which charge and spin degrees of freedom interact strongly offer applications known as spintronics. Following a remarkable success of metallic spintronics based on the giant-magnetoresistive effect, tremendous efforts have been invested into the less developed semiconductor spintronics, in particular, with the aim to produce three-terminal spintronic devices, e.g. spin transistors. One of the most important prerequisites for such a technology is an effective injection of spin-polarized carriers from a ferromagnetic semiconductor into a nonmagnetic semiconductor, preferably one of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5431","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":"2026-05-18T02:47:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6z+fPqvX3Y0s+hjf2Scy8tvXp/2LxvaNPdQyktN1VfafVyB8NqAvkLKcCh/pqB7Qnztp51ahz+Dszac5Uac7Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T05:37:10.059825Z"},"content_sha256":"36eb73aeaf5e22acffa2071edc5b6512b0977f463a8a25dfb066e2a4276fb2c9","schema_version":"1.0","event_id":"sha256:36eb73aeaf5e22acffa2071edc5b6512b0977f463a8a25dfb066e2a4276fb2c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KGXTFL5FYY5NJGZWHMRVINBPUA/bundle.json","state_url":"https://pith.science/pith/KGXTFL5FYY5NJGZWHMRVINBPUA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KGXTFL5FYY5NJGZWHMRVINBPUA/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":"2026-05-27T05:37:10Z","links":{"resolver":"https://pith.science/pith/KGXTFL5FYY5NJGZWHMRVINBPUA","bundle":"https://pith.science/pith/KGXTFL5FYY5NJGZWHMRVINBPUA/bundle.json","state":"https://pith.science/pith/KGXTFL5FYY5NJGZWHMRVINBPUA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KGXTFL5FYY5NJGZWHMRVINBPUA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:KGXTFL5FYY5NJGZWHMRVINBPUA","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":"5c6b21f550b4000e1798c44e4e801a433ce74a76135d1d45e9848c35b3730bd3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-21T09:32:46Z","title_canon_sha256":"f4bc26db0bd022900c52c1c4117094f5d2a5c75b0e6306dcc2a82e6fc26ae112"},"schema_version":"1.0","source":{"id":"1407.5431","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1407.5431","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"arxiv_version","alias_value":"1407.5431v1","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1407.5431","created_at":"2026-05-18T02:47:13Z"},{"alias_kind":"pith_short_12","alias_value":"KGXTFL5FYY5N","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KGXTFL5FYY5NJGZW","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KGXTFL5F","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:36eb73aeaf5e22acffa2071edc5b6512b0977f463a8a25dfb066e2a4276fb2c9","target":"graph","created_at":"2026-05-18T02:47:13Z","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":"Materials in which charge and spin degrees of freedom interact strongly offer applications known as spintronics. Following a remarkable success of metallic spintronics based on the giant-magnetoresistive effect, tremendous efforts have been invested into the less developed semiconductor spintronics, in particular, with the aim to produce three-terminal spintronic devices, e.g. spin transistors. One of the most important prerequisites for such a technology is an effective injection of spin-polarized carriers from a ferromagnetic semiconductor into a nonmagnetic semiconductor, preferably one of ","authors_text":"Alexey E. Primenko, Andrey M. Tokmachev, Dmitry V. Averyanov, Igor A. Likhachev, Peter E. Teterin, Vyacheslav G. Storchak, Yuri G. Sadofyev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-21T09:32:46Z","title":"Direct epitaxial integration of the ferromagnetic semiconductor EuO with silicon for spintronic applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.5431","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":"sha256:0313f0ec65f11a1f6f6200e6a4e6656aa2bf9131a1bbed927741988bae227eef","target":"record","created_at":"2026-05-18T02:47:13Z","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":"5c6b21f550b4000e1798c44e4e801a433ce74a76135d1d45e9848c35b3730bd3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-07-21T09:32:46Z","title_canon_sha256":"f4bc26db0bd022900c52c1c4117094f5d2a5c75b0e6306dcc2a82e6fc26ae112"},"schema_version":"1.0","source":{"id":"1407.5431","kind":"arxiv","version":1}},"canonical_sha256":"51af32afa5c63ad49b363b2354342fa0278e5f010aa3a2b29608bae5f97e793b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"51af32afa5c63ad49b363b2354342fa0278e5f010aa3a2b29608bae5f97e793b","first_computed_at":"2026-05-18T02:47:13.988634Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:47:13.988634Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/CNo3z7FGbeUYG+1LXFfPPFnhiEdxp046w6GvIqgiNKJBOten0QLzMDsymqPvFCQcbzyDt+MXYbKZgNaz5LTCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:47:13.989103Z","signed_message":"canonical_sha256_bytes"},"source_id":"1407.5431","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0313f0ec65f11a1f6f6200e6a4e6656aa2bf9131a1bbed927741988bae227eef","sha256:36eb73aeaf5e22acffa2071edc5b6512b0977f463a8a25dfb066e2a4276fb2c9"],"state_sha256":"4a10030ecab046bd66bbe94925bf6170b3c63285ce3d1074f7c24c02fd2e4c77"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9Czqpw2wjz0nQxUeXs2LRjcSPRdQSuwxByCrugtdqm2DUdUnskA9/eS4K3H4RLhgcFeH0qbKtclo4P0pXq5xAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T05:37:10.063175Z","bundle_sha256":"969f0368ec2e81a3093813af72762ebed5fac1c2c36a072f38f4cd35f68e159f"}}