{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:SHDXWEIZDKFAKRRSWBDRCOH734","short_pith_number":"pith:SHDXWEIZ","canonical_record":{"source":{"id":"1311.6616","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-26T10:58:33Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"806cab4601b5ef5d15e35dd5f2122939c532e8c074d95228a63b71bbaaa40f2f","abstract_canon_sha256":"bf28831239e2ded8d33d36f9176b1960abc3980cbfbf26d753c60ab85e8990aa"},"schema_version":"1.0"},"canonical_sha256":"91c77b11191a8a054632b0471138ffdf28a857b768064733731ab6fe225ba2c8","source":{"kind":"arxiv","id":"1311.6616","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.6616","created_at":"2026-05-18T03:02:46Z"},{"alias_kind":"arxiv_version","alias_value":"1311.6616v1","created_at":"2026-05-18T03:02:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.6616","created_at":"2026-05-18T03:02:46Z"},{"alias_kind":"pith_short_12","alias_value":"SHDXWEIZDKFA","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SHDXWEIZDKFAKRRS","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SHDXWEIZ","created_at":"2026-05-18T12:27:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:SHDXWEIZDKFAKRRSWBDRCOH734","target":"record","payload":{"canonical_record":{"source":{"id":"1311.6616","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-26T10:58:33Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"806cab4601b5ef5d15e35dd5f2122939c532e8c074d95228a63b71bbaaa40f2f","abstract_canon_sha256":"bf28831239e2ded8d33d36f9176b1960abc3980cbfbf26d753c60ab85e8990aa"},"schema_version":"1.0"},"canonical_sha256":"91c77b11191a8a054632b0471138ffdf28a857b768064733731ab6fe225ba2c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:02:46.448142Z","signature_b64":"4z3fk0UY7lOx2ngNZJ3/oS1Ukhr2KjBp2UPabIJWxpzb5vFmFxPENHZk0ixqkjVweYKugmaK8fhMzni2uJEbBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91c77b11191a8a054632b0471138ffdf28a857b768064733731ab6fe225ba2c8","last_reissued_at":"2026-05-18T03:02:46.447540Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:02:46.447540Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.6616","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":"2026-05-18T03:02:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4CweuxoLco+BE1RLkjxEBxz/fJm7j6CjBuLFwEu8xF+U7KDySA1RIq96cSstFTumi7O3nUd9CdcClJhPTOd2Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T23:23:57.891127Z"},"content_sha256":"036c700a1a9553d82cbabdb4ac74c9be871703a9607a45c8efa9ef287fc9932e","schema_version":"1.0","event_id":"sha256:036c700a1a9553d82cbabdb4ac74c9be871703a9607a45c8efa9ef287fc9932e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:SHDXWEIZDKFAKRRSWBDRCOH734","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Recent Progress in III-V based ferromagnetic semiconductors: Band structure, Fermi level, and tunneling transport","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Masaaki Tanaka, Pham Nam Hai, Shinobu Ohya","submitted_at":"2013-11-26T10:58:33Z","abstract_excerpt":"Spin-based electronics or spintronics is an emerging field, in which we try to utilize spin degrees of freedom as well as charge transport in materials and devices. While metal-based spin-devices, such as magnetic-field sensors and magnetoresistive random access memory using giant magnetoresistance and tunneling magnetoresistance, are already put to practical use, semiconductor-based spintronics has greater potential for expansion because of good compatibility with existing semiconductor technology. Many semiconductor-based spintronics devices with useful functionalities have been proposed and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.6616","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":"2026-05-18T03:02:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tqWwxcBwOyhsm2FNuCKpJRhnzeI7MRMRxryj0IDPFsvH9qTAhFv9Wi5/Tctj/X0mi7UFVacnosJ2UmRO0W4XCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T23:23:57.891937Z"},"content_sha256":"99c89b7e0e59d6227e98bf5ee5fbe60d897c6ed2ccc8819448caf47b2c778e5c","schema_version":"1.0","event_id":"sha256:99c89b7e0e59d6227e98bf5ee5fbe60d897c6ed2ccc8819448caf47b2c778e5c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SHDXWEIZDKFAKRRSWBDRCOH734/bundle.json","state_url":"https://pith.science/pith/SHDXWEIZDKFAKRRSWBDRCOH734/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SHDXWEIZDKFAKRRSWBDRCOH734/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":"2026-05-29T23:23:57Z","links":{"resolver":"https://pith.science/pith/SHDXWEIZDKFAKRRSWBDRCOH734","bundle":"https://pith.science/pith/SHDXWEIZDKFAKRRSWBDRCOH734/bundle.json","state":"https://pith.science/pith/SHDXWEIZDKFAKRRSWBDRCOH734/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SHDXWEIZDKFAKRRSWBDRCOH734/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:SHDXWEIZDKFAKRRSWBDRCOH734","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":"bf28831239e2ded8d33d36f9176b1960abc3980cbfbf26d753c60ab85e8990aa","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-26T10:58:33Z","title_canon_sha256":"806cab4601b5ef5d15e35dd5f2122939c532e8c074d95228a63b71bbaaa40f2f"},"schema_version":"1.0","source":{"id":"1311.6616","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.6616","created_at":"2026-05-18T03:02:46Z"},{"alias_kind":"arxiv_version","alias_value":"1311.6616v1","created_at":"2026-05-18T03:02:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.6616","created_at":"2026-05-18T03:02:46Z"},{"alias_kind":"pith_short_12","alias_value":"SHDXWEIZDKFA","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SHDXWEIZDKFAKRRS","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SHDXWEIZ","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:99c89b7e0e59d6227e98bf5ee5fbe60d897c6ed2ccc8819448caf47b2c778e5c","target":"graph","created_at":"2026-05-18T03:02:46Z","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":"Spin-based electronics or spintronics is an emerging field, in which we try to utilize spin degrees of freedom as well as charge transport in materials and devices. While metal-based spin-devices, such as magnetic-field sensors and magnetoresistive random access memory using giant magnetoresistance and tunneling magnetoresistance, are already put to practical use, semiconductor-based spintronics has greater potential for expansion because of good compatibility with existing semiconductor technology. Many semiconductor-based spintronics devices with useful functionalities have been proposed and","authors_text":"Masaaki Tanaka, Pham Nam Hai, Shinobu Ohya","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-26T10:58:33Z","title":"Recent Progress in III-V based ferromagnetic semiconductors: Band structure, Fermi level, and tunneling transport"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.6616","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":"sha256:036c700a1a9553d82cbabdb4ac74c9be871703a9607a45c8efa9ef287fc9932e","target":"record","created_at":"2026-05-18T03:02:46Z","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":"bf28831239e2ded8d33d36f9176b1960abc3980cbfbf26d753c60ab85e8990aa","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-11-26T10:58:33Z","title_canon_sha256":"806cab4601b5ef5d15e35dd5f2122939c532e8c074d95228a63b71bbaaa40f2f"},"schema_version":"1.0","source":{"id":"1311.6616","kind":"arxiv","version":1}},"canonical_sha256":"91c77b11191a8a054632b0471138ffdf28a857b768064733731ab6fe225ba2c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91c77b11191a8a054632b0471138ffdf28a857b768064733731ab6fe225ba2c8","first_computed_at":"2026-05-18T03:02:46.447540Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:02:46.447540Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4z3fk0UY7lOx2ngNZJ3/oS1Ukhr2KjBp2UPabIJWxpzb5vFmFxPENHZk0ixqkjVweYKugmaK8fhMzni2uJEbBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:02:46.448142Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.6616","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:036c700a1a9553d82cbabdb4ac74c9be871703a9607a45c8efa9ef287fc9932e","sha256:99c89b7e0e59d6227e98bf5ee5fbe60d897c6ed2ccc8819448caf47b2c778e5c"],"state_sha256":"412b94bfd13e3123695edaab7d5477f48f6e1f79caaf37a7faeb1e2063cf0ca7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9WTcFIDrapYMhNVbZu4YPbbGRWgOWnV3SqLopAN3lPNhG2Mk7k/so/3UlIi6Mwas8rfdaRqWQZ4RaRKeZBpKCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T23:23:57.896898Z","bundle_sha256":"f363017d2ba81d5a50b1076f01943bb355c569250b0fe73630ddb168504ff632"}}