{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:R54T5DP6Q4LEKVWNFKMAOLPQIB","short_pith_number":"pith:R54T5DP6","canonical_record":{"source":{"id":"1104.1072","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-04-06T12:11:02Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"8b598659d07cc7e9188d97b03dd901babae0f2da755754948240e73fe822d334","abstract_canon_sha256":"efcbfb228f4c040fbeab091be473dd4c1c1f420aef559450330078b75eecb55c"},"schema_version":"1.0"},"canonical_sha256":"8f793e8dfe87164556cd2a98072df040798f2a1a3b09176a221cd6a89a48a271","source":{"kind":"arxiv","id":"1104.1072","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.1072","created_at":"2026-05-18T02:02:37Z"},{"alias_kind":"arxiv_version","alias_value":"1104.1072v1","created_at":"2026-05-18T02:02:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.1072","created_at":"2026-05-18T02:02:37Z"},{"alias_kind":"pith_short_12","alias_value":"R54T5DP6Q4LE","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"R54T5DP6Q4LEKVWN","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"R54T5DP6","created_at":"2026-05-18T12:26:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:R54T5DP6Q4LEKVWNFKMAOLPQIB","target":"record","payload":{"canonical_record":{"source":{"id":"1104.1072","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-04-06T12:11:02Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"8b598659d07cc7e9188d97b03dd901babae0f2da755754948240e73fe822d334","abstract_canon_sha256":"efcbfb228f4c040fbeab091be473dd4c1c1f420aef559450330078b75eecb55c"},"schema_version":"1.0"},"canonical_sha256":"8f793e8dfe87164556cd2a98072df040798f2a1a3b09176a221cd6a89a48a271","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:37.278377Z","signature_b64":"/ybMAoCAat56iPNnFb2iqeWYAMpBpFaw1VuYQrUgH3Xmz4Ytw91E3HAZWW6gqehs3tB3fho4uF5CjA+gPNylCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f793e8dfe87164556cd2a98072df040798f2a1a3b09176a221cd6a89a48a271","last_reissued_at":"2026-05-18T02:02:37.277764Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:37.277764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.1072","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":"2026-05-18T02:02:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rHIFBe0eUpulnEW4V4LM/M01bpRIRiBuKqwIbvl9CdgQKvVXzq3p81si1gJjoAVeAy6ZvOBfYgyU9RylOGEUCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:20:47.214140Z"},"content_sha256":"6ca8e4f8bd813417b9a6e9b3e92faa5c7f5f7550b09ecf9b03e87e8c50d3fad1","schema_version":"1.0","event_id":"sha256:6ca8e4f8bd813417b9a6e9b3e92faa5c7f5f7550b09ecf9b03e87e8c50d3fad1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:R54T5DP6Q4LEKVWNFKMAOLPQIB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improved tunneling magnetoresistance at low temperature in manganite junctions grown by molecular beam epitaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Alexandr Yu. Petrov, Bruce A. Davidson, Dieter Koelle, Lucero Alvarez Mino, Reinhold Kleiner, Robert Werner","submitted_at":"2011-04-06T12:11:02Z","abstract_excerpt":"We report resistance versus magnetic field measurements for a La0.65Sr0.35MnO3/SrTiO3/La0.65Sr0.35MnO3 tunnel junction grown by molecular-beam epitaxy, that show a large field window of extremely high tunneling magnetoresistance (TMR) at low temperature. Scanning the in-plane applied field orientation through 360^/circ, the TMR shows 4-fold symmetry, i.e. biaxial anisotropy, aligned with the crystalline axes but not the junction geometrical long axis. The TMR reaches ~ 1900% at 4K, corresponding to an interfacial spin polarization of > 95% assuming identical interfaces. These results show that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1072","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":"2026-05-18T02:02:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S2f2+rvlvZMZX+IBmr7ApWM+nYTNNeZXxbu5PwInJnE0qURgQIJuL+vtI66P7vCWz7WjLbZFaFYrVaTZ9hExBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T13:20:47.214829Z"},"content_sha256":"7e7765d906345e5cfddd05057d64f374c8717779ff3b9e063543632a48db7084","schema_version":"1.0","event_id":"sha256:7e7765d906345e5cfddd05057d64f374c8717779ff3b9e063543632a48db7084"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R54T5DP6Q4LEKVWNFKMAOLPQIB/bundle.json","state_url":"https://pith.science/pith/R54T5DP6Q4LEKVWNFKMAOLPQIB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R54T5DP6Q4LEKVWNFKMAOLPQIB/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":"2026-05-25T13:20:47Z","links":{"resolver":"https://pith.science/pith/R54T5DP6Q4LEKVWNFKMAOLPQIB","bundle":"https://pith.science/pith/R54T5DP6Q4LEKVWNFKMAOLPQIB/bundle.json","state":"https://pith.science/pith/R54T5DP6Q4LEKVWNFKMAOLPQIB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R54T5DP6Q4LEKVWNFKMAOLPQIB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:R54T5DP6Q4LEKVWNFKMAOLPQIB","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":"efcbfb228f4c040fbeab091be473dd4c1c1f420aef559450330078b75eecb55c","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-04-06T12:11:02Z","title_canon_sha256":"8b598659d07cc7e9188d97b03dd901babae0f2da755754948240e73fe822d334"},"schema_version":"1.0","source":{"id":"1104.1072","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.1072","created_at":"2026-05-18T02:02:37Z"},{"alias_kind":"arxiv_version","alias_value":"1104.1072v1","created_at":"2026-05-18T02:02:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.1072","created_at":"2026-05-18T02:02:37Z"},{"alias_kind":"pith_short_12","alias_value":"R54T5DP6Q4LE","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"R54T5DP6Q4LEKVWN","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"R54T5DP6","created_at":"2026-05-18T12:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:7e7765d906345e5cfddd05057d64f374c8717779ff3b9e063543632a48db7084","target":"graph","created_at":"2026-05-18T02:02:37Z","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 resistance versus magnetic field measurements for a La0.65Sr0.35MnO3/SrTiO3/La0.65Sr0.35MnO3 tunnel junction grown by molecular-beam epitaxy, that show a large field window of extremely high tunneling magnetoresistance (TMR) at low temperature. Scanning the in-plane applied field orientation through 360^/circ, the TMR shows 4-fold symmetry, i.e. biaxial anisotropy, aligned with the crystalline axes but not the junction geometrical long axis. The TMR reaches ~ 1900% at 4K, corresponding to an interfacial spin polarization of > 95% assuming identical interfaces. These results show that","authors_text":"Alexandr Yu. Petrov, Bruce A. Davidson, Dieter Koelle, Lucero Alvarez Mino, Reinhold Kleiner, Robert Werner","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-04-06T12:11:02Z","title":"Improved tunneling magnetoresistance at low temperature in manganite junctions grown by molecular beam epitaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.1072","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":"sha256:6ca8e4f8bd813417b9a6e9b3e92faa5c7f5f7550b09ecf9b03e87e8c50d3fad1","target":"record","created_at":"2026-05-18T02:02:37Z","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":"efcbfb228f4c040fbeab091be473dd4c1c1f420aef559450330078b75eecb55c","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-04-06T12:11:02Z","title_canon_sha256":"8b598659d07cc7e9188d97b03dd901babae0f2da755754948240e73fe822d334"},"schema_version":"1.0","source":{"id":"1104.1072","kind":"arxiv","version":1}},"canonical_sha256":"8f793e8dfe87164556cd2a98072df040798f2a1a3b09176a221cd6a89a48a271","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f793e8dfe87164556cd2a98072df040798f2a1a3b09176a221cd6a89a48a271","first_computed_at":"2026-05-18T02:02:37.277764Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:37.277764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/ybMAoCAat56iPNnFb2iqeWYAMpBpFaw1VuYQrUgH3Xmz4Ytw91E3HAZWW6gqehs3tB3fho4uF5CjA+gPNylCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:37.278377Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.1072","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ca8e4f8bd813417b9a6e9b3e92faa5c7f5f7550b09ecf9b03e87e8c50d3fad1","sha256:7e7765d906345e5cfddd05057d64f374c8717779ff3b9e063543632a48db7084"],"state_sha256":"d134af9bde394e472e1c841ab7f77189b9289df2c82e7e03ff16e7a08a4dea39"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aL+JYV7Cxl3YMiS/W4+SQXSwSdfC28/9SaZfdXm4Mv31puiqJp+GaqawgA6ZUO3TLb50xvoBCBxzdlbT8jzRDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T13:20:47.217758Z","bundle_sha256":"2c8f399b0cfdfdf51aca1059351a63b7c5b9ddda4f9f46160f86f5063b1f30eb"}}