{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3CDFKF4GU44KC6LUQNWR5BI5Q4","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":"b10575e22c7768a5223d9bcedc00e138558855355f6d771aaa3060912573b405","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-13T09:52:56Z","title_canon_sha256":"9023efd27076a1a7c2c563f9f0e9acd51cb4932d776a1285db620dbc15f90691"},"schema_version":"1.0","source":{"id":"1705.04805","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.04805","created_at":"2026-05-18T00:24:35Z"},{"alias_kind":"arxiv_version","alias_value":"1705.04805v2","created_at":"2026-05-18T00:24:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.04805","created_at":"2026-05-18T00:24:35Z"},{"alias_kind":"pith_short_12","alias_value":"3CDFKF4GU44K","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3CDFKF4GU44KC6LU","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3CDFKF4G","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:4376a2d66c5312e2a7b2aa57ffc57adc9ed45f9ef7698a6ef301784ce7215e6f","target":"graph","created_at":"2026-05-18T00:24:35Z","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":"The mechanical behaviour and deformation mechanisms of magnetron-sputtered Zr/Nb nanoscale multilayers were analysed as a function of the periodicity (L = 10 and 75 nm) and annealing time at 350C (2-336 hrs). The strength of the as-deposited multilayers was independent of the layer thickness and it was controlled by the co-deformation of the Zr and Nb layers. Annealing led to transformation of the Zr layers into ZrO2 after a few hours, while the Nb layers oxidised at a much slower rate. The volumetric expansion associated with the oxidation led to the formation of cracks at the interfaces and ","authors_text":"J. Llorca, J. M. Molina-Aldaregu\\'ia, L. W. Yang, M. A. Moncl\\'us, M. Callisti, T. Polcar","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-13T09:52:56Z","title":"Effects of layer thickness on the mechanical behavior of oxidation-strengthened Zr/Nb nanoscale multilayers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.04805","kind":"arxiv","version":2},"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":"sha256:4b2306c886665617b102d75974dc4543330d168733c3afd767099036701842f7","target":"record","created_at":"2026-05-18T00:24:35Z","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":"b10575e22c7768a5223d9bcedc00e138558855355f6d771aaa3060912573b405","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-13T09:52:56Z","title_canon_sha256":"9023efd27076a1a7c2c563f9f0e9acd51cb4932d776a1285db620dbc15f90691"},"schema_version":"1.0","source":{"id":"1705.04805","kind":"arxiv","version":2}},"canonical_sha256":"d886551786a738a17974836d1e851d87204167f115fe1696a3df00e62a2b8b5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d886551786a738a17974836d1e851d87204167f115fe1696a3df00e62a2b8b5e","first_computed_at":"2026-05-18T00:24:35.363554Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:35.363554Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8GqoUEMyZ1cApa2kd+xpWfAm+M+ZFIpfxm9xWScAV+FaqVOHW+fbEJsTqvg0ShKUSiRYN7nUgRX2ns9QO+MjBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:35.363957Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.04805","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4b2306c886665617b102d75974dc4543330d168733c3afd767099036701842f7","sha256:4376a2d66c5312e2a7b2aa57ffc57adc9ed45f9ef7698a6ef301784ce7215e6f"],"state_sha256":"269660b83b2a29c04951bc9395ce8fc999cfa40a118651ec26f265ea5fce01b4"}