{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ASLYUUE5LJIIUIOD6QUIOTCRFQ","short_pith_number":"pith:ASLYUUE5","canonical_record":{"source":{"id":"1209.2821","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-09-13T09:03:31Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"95db694ca151ecb54d6434f4cf8acb976c81b5f8f07260e5e3ac63ea216dbd9f","abstract_canon_sha256":"e125566c89962cd1b5e0060778ac57a4a451551f9ac1e3e75ce8a7ca223d4a8f"},"schema_version":"1.0"},"canonical_sha256":"04978a509d5a508a21c3f428874c512c32ea127904453f6c7e62fdd9de8392f4","source":{"kind":"arxiv","id":"1209.2821","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2821","created_at":"2026-05-18T03:44:02Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2821v1","created_at":"2026-05-18T03:44:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2821","created_at":"2026-05-18T03:44:02Z"},{"alias_kind":"pith_short_12","alias_value":"ASLYUUE5LJII","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"ASLYUUE5LJIIUIOD","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"ASLYUUE5","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ASLYUUE5LJIIUIOD6QUIOTCRFQ","target":"record","payload":{"canonical_record":{"source":{"id":"1209.2821","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-09-13T09:03:31Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"95db694ca151ecb54d6434f4cf8acb976c81b5f8f07260e5e3ac63ea216dbd9f","abstract_canon_sha256":"e125566c89962cd1b5e0060778ac57a4a451551f9ac1e3e75ce8a7ca223d4a8f"},"schema_version":"1.0"},"canonical_sha256":"04978a509d5a508a21c3f428874c512c32ea127904453f6c7e62fdd9de8392f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:44:02.087236Z","signature_b64":"AGeBG784OxkzA77rweED6qFR187vngY6VGK8rmh2OG7sMpsycDSyB3GgTo9xi2cI0FZmCsfhEVNGGRYTvhjSBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"04978a509d5a508a21c3f428874c512c32ea127904453f6c7e62fdd9de8392f4","last_reissued_at":"2026-05-18T03:44:02.086472Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:44:02.086472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.2821","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":"2026-05-18T03:44:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PQrLXNevGA0zsNYc2TAsMzH0AVTGxYkJYalT9jiEF5cbcHHb7H+9FxkYfMahc272uGBD6rpsHa5oVVk67FPWDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T11:28:34.225810Z"},"content_sha256":"45310239f7103b6fde1c7db249a8c0e1bad66e6e1a4c3d9c382a3e995f7cd82d","schema_version":"1.0","event_id":"sha256:45310239f7103b6fde1c7db249a8c0e1bad66e6e1a4c3d9c382a3e995f7cd82d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ASLYUUE5LJIIUIOD6QUIOTCRFQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental verification of contact-size estimates in point-contact spectroscopy on superconductor/ferromagnet heterocontacts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"C. S\\\"urgers, G. Goll, H. v. L\\\"ohneysen, J. Gramich, P. Brenner","submitted_at":"2012-09-13T09:03:31Z","abstract_excerpt":"Nanostructured superconductor/ferromagnet heterocontacts are studied in the different transport regimes of point-contact spectroscopy. Direct measurements of the nanocontact size by scanning electron microscopy allow a comparison with theoretical models for contact-size estimates of heterocontacts. Our experimental data give evidence that size estimates yield reasonable values for the point-contact diameter $d$ as long as the samples are carefully characterized with respect to the local electronic parameters."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2821","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":"2026-05-18T03:44:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X6saSJAVjcZiJ++RCTAHGgKZF2zyMmb/Y6LNmttWOxvllW9nhKvXBLKy1qpg9jMOMCf7OsTA3QSq9fVyT0CACA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T11:28:34.226166Z"},"content_sha256":"8be67cec13fcb726fc9857d23eb96febd98dc1fc82d3a52dac82e0e069d932f5","schema_version":"1.0","event_id":"sha256:8be67cec13fcb726fc9857d23eb96febd98dc1fc82d3a52dac82e0e069d932f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ASLYUUE5LJIIUIOD6QUIOTCRFQ/bundle.json","state_url":"https://pith.science/pith/ASLYUUE5LJIIUIOD6QUIOTCRFQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ASLYUUE5LJIIUIOD6QUIOTCRFQ/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":"2026-06-03T11:28:34Z","links":{"resolver":"https://pith.science/pith/ASLYUUE5LJIIUIOD6QUIOTCRFQ","bundle":"https://pith.science/pith/ASLYUUE5LJIIUIOD6QUIOTCRFQ/bundle.json","state":"https://pith.science/pith/ASLYUUE5LJIIUIOD6QUIOTCRFQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ASLYUUE5LJIIUIOD6QUIOTCRFQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ASLYUUE5LJIIUIOD6QUIOTCRFQ","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":"e125566c89962cd1b5e0060778ac57a4a451551f9ac1e3e75ce8a7ca223d4a8f","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-09-13T09:03:31Z","title_canon_sha256":"95db694ca151ecb54d6434f4cf8acb976c81b5f8f07260e5e3ac63ea216dbd9f"},"schema_version":"1.0","source":{"id":"1209.2821","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2821","created_at":"2026-05-18T03:44:02Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2821v1","created_at":"2026-05-18T03:44:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2821","created_at":"2026-05-18T03:44:02Z"},{"alias_kind":"pith_short_12","alias_value":"ASLYUUE5LJII","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"ASLYUUE5LJIIUIOD","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"ASLYUUE5","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:8be67cec13fcb726fc9857d23eb96febd98dc1fc82d3a52dac82e0e069d932f5","target":"graph","created_at":"2026-05-18T03:44:02Z","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":"Nanostructured superconductor/ferromagnet heterocontacts are studied in the different transport regimes of point-contact spectroscopy. Direct measurements of the nanocontact size by scanning electron microscopy allow a comparison with theoretical models for contact-size estimates of heterocontacts. Our experimental data give evidence that size estimates yield reasonable values for the point-contact diameter $d$ as long as the samples are carefully characterized with respect to the local electronic parameters.","authors_text":"C. S\\\"urgers, G. Goll, H. v. L\\\"ohneysen, J. Gramich, P. Brenner","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-09-13T09:03:31Z","title":"Experimental verification of contact-size estimates in point-contact spectroscopy on superconductor/ferromagnet heterocontacts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2821","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":"sha256:45310239f7103b6fde1c7db249a8c0e1bad66e6e1a4c3d9c382a3e995f7cd82d","target":"record","created_at":"2026-05-18T03:44:02Z","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":"e125566c89962cd1b5e0060778ac57a4a451551f9ac1e3e75ce8a7ca223d4a8f","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-09-13T09:03:31Z","title_canon_sha256":"95db694ca151ecb54d6434f4cf8acb976c81b5f8f07260e5e3ac63ea216dbd9f"},"schema_version":"1.0","source":{"id":"1209.2821","kind":"arxiv","version":1}},"canonical_sha256":"04978a509d5a508a21c3f428874c512c32ea127904453f6c7e62fdd9de8392f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04978a509d5a508a21c3f428874c512c32ea127904453f6c7e62fdd9de8392f4","first_computed_at":"2026-05-18T03:44:02.086472Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:44:02.086472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AGeBG784OxkzA77rweED6qFR187vngY6VGK8rmh2OG7sMpsycDSyB3GgTo9xi2cI0FZmCsfhEVNGGRYTvhjSBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:44:02.087236Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.2821","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:45310239f7103b6fde1c7db249a8c0e1bad66e6e1a4c3d9c382a3e995f7cd82d","sha256:8be67cec13fcb726fc9857d23eb96febd98dc1fc82d3a52dac82e0e069d932f5"],"state_sha256":"bc32f82c372bf7b58db5fc14c163407cc8561708c722fd9360f58e71fe6cfa63"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P0zCtw6zW/biCrXNvjUcVkhJDPF8IhIS4xu39X+4Zqghegx4xTHd3XhagIODNMwkpJYLVWcPKd1kzk2ivMRxAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T11:28:34.228532Z","bundle_sha256":"7f14afeca89067303dd6870fc2920b90ad876781e18f570f8eadc8d84c2e983f"}}