{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:2J246ODW6ZGJBCX4YR5AQGFQNY","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":"528699b56fc3ffdee6578ec7c60cf5896aedbea0e5e75fc41b10ba79d7741dbc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-09T01:50:52Z","title_canon_sha256":"776fbda5985a2b790038ae8697852c6eff838c98091d198efdf896ae3bf53662"},"schema_version":"1.0","source":{"id":"1705.03143","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.03143","created_at":"2026-05-18T00:44:43Z"},{"alias_kind":"arxiv_version","alias_value":"1705.03143v1","created_at":"2026-05-18T00:44:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.03143","created_at":"2026-05-18T00:44:43Z"},{"alias_kind":"pith_short_12","alias_value":"2J246ODW6ZGJ","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2J246ODW6ZGJBCX4","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2J246ODW","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:dce035fcb7841ef60d9c03f4b4ac81404d0619e8547c86c387047ba5be1fbeee","target":"graph","created_at":"2026-05-18T00:44:43Z","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":"A detailed understanding of the relation between microscopic structure and phonon propagation at the nan oscale is essential to design materials with desired phononic and thermal properties.Here we uncover a new mechanism of phonon interaction in surface oxidized membranes, i.e., native oxide layers interact with phonons in ultra-thin silicon membranes through local resonances. The local resonances reduce the low frequency phonon group velocities and shorten their mean free path. This effect opens up a new strategy for ultralow thermal conductivity design as it complements the scattering mecha","authors_text":"Daniele Selli, Davide Donadio, Sanghamitra Neogi, Shiyun Xiong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-09T01:50:52Z","title":"Native surface oxide turns alloyed silicon membranes into nanophononic metamaterials with ultra-low thermal conductivity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.03143","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":"sha256:959ad44a204c7ea8cd4d437f025f900006bbcb7f5ec8d27856bbda63a8c7d96e","target":"record","created_at":"2026-05-18T00:44:43Z","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":"528699b56fc3ffdee6578ec7c60cf5896aedbea0e5e75fc41b10ba79d7741dbc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-09T01:50:52Z","title_canon_sha256":"776fbda5985a2b790038ae8697852c6eff838c98091d198efdf896ae3bf53662"},"schema_version":"1.0","source":{"id":"1705.03143","kind":"arxiv","version":1}},"canonical_sha256":"d275cf3876f64c908afcc47a0818b06e166f2fee9bb2856af3bb6c2eb87e5719","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d275cf3876f64c908afcc47a0818b06e166f2fee9bb2856af3bb6c2eb87e5719","first_computed_at":"2026-05-18T00:44:43.828782Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:43.828782Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FgFn/J5DEwKrurBJoPqyY9d8gaqK4hUXDuScJH52rK5zQtFYGML4MCk6wdUrNozm7Ngbr+cXUC04dVtfsAdMDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:43.829337Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.03143","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:959ad44a204c7ea8cd4d437f025f900006bbcb7f5ec8d27856bbda63a8c7d96e","sha256:dce035fcb7841ef60d9c03f4b4ac81404d0619e8547c86c387047ba5be1fbeee"],"state_sha256":"d1c5a6666083176113cc317e9021d91a276a4a0fa462c1e7bdde1241fa314c5c"}