{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LARPGUP3XSPOMJWRIBYXRBLBDJ","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":"1514141968474f1c5eddd9da4d49cde106d0c941c46826b87d0c908d09146c23","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-05-13T09:05:34Z","title_canon_sha256":"80d7b9aedd2db70e0ce7892a10d7cc8401660a4d6763f6b321eccbf46518d2b6"},"schema_version":"1.0","source":{"id":"1605.04088","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.04088","created_at":"2026-05-18T01:14:54Z"},{"alias_kind":"arxiv_version","alias_value":"1605.04088v1","created_at":"2026-05-18T01:14:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.04088","created_at":"2026-05-18T01:14:54Z"},{"alias_kind":"pith_short_12","alias_value":"LARPGUP3XSPO","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LARPGUP3XSPOMJWR","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LARPGUP3","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:85fd224fae173da1baaa11d6454177fde5a7c79a8a7d39d5ac9f7ea31317e2fb","target":"graph","created_at":"2026-05-18T01:14:54Z","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":"Numerous studies have proved the usefulness of surface patterning for the modification of tribological performances of sliding contacts. Here we investigate the effects of patterning on the tribological properties of a slider over a solid substrate. We show that, depending on the numerical density of surface grooves, the tribological properties can change significantly. A low density of surface patterning leads to a decrease of static friction force, while a higher density weakens this effect. The decrease is related to a non-uniform distribution of surface stress induced by patterning. We bel","authors_text":"Nicola Pugno, Rosario Capozza","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-05-13T09:05:34Z","title":"Effect of Surface Grooves on the Static Friction of an Elastic Slider"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.04088","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":"sha256:78cc3d66da27eb085ea0641869e9c6c8536acb43b69f25c25e61f46088c2691f","target":"record","created_at":"2026-05-18T01:14:54Z","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":"1514141968474f1c5eddd9da4d49cde106d0c941c46826b87d0c908d09146c23","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-05-13T09:05:34Z","title_canon_sha256":"80d7b9aedd2db70e0ce7892a10d7cc8401660a4d6763f6b321eccbf46518d2b6"},"schema_version":"1.0","source":{"id":"1605.04088","kind":"arxiv","version":1}},"canonical_sha256":"5822f351fbbc9ee626d140717885611a408cd56898a67e3f4a9dc6b0fb548d47","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5822f351fbbc9ee626d140717885611a408cd56898a67e3f4a9dc6b0fb548d47","first_computed_at":"2026-05-18T01:14:54.373738Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:14:54.373738Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"46eNkLnDH919bspBWKohmuCwhFPfmjEHb3lFtC/084uH5iuijUHlUJlfbmRgZXvtRNHvFJ1wIrJmhJvnZSz4AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:14:54.374251Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.04088","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:78cc3d66da27eb085ea0641869e9c6c8536acb43b69f25c25e61f46088c2691f","sha256:85fd224fae173da1baaa11d6454177fde5a7c79a8a7d39d5ac9f7ea31317e2fb"],"state_sha256":"3fe5a3b901c5aebb5a8d44ecfecfc947ec872919c065e86762ab58b001dd8db6"}