{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:BFMPFLZKBWTOI5CFSE7G62AJ7K","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":"b567f9c0054bd3079c39c830cb26fcb35eb20e0bda6370f92c9081a415cecae5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-06-10T11:02:57Z","title_canon_sha256":"7d9ab116d544edccc688f7ad60d3c95d2d0bfba44d49b4147c8a1d321080d09b"},"schema_version":"1.0","source":{"id":"0806.1635","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.1635","created_at":"2026-05-18T03:11:47Z"},{"alias_kind":"arxiv_version","alias_value":"0806.1635v1","created_at":"2026-05-18T03:11:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.1635","created_at":"2026-05-18T03:11:47Z"},{"alias_kind":"pith_short_12","alias_value":"BFMPFLZKBWTO","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"BFMPFLZKBWTOI5CF","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"BFMPFLZK","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:12c8c8a4f3caa97ed1f99a77a637c4be49d77dec0d46cac51edeb272476a1f7c","target":"graph","created_at":"2026-05-18T03:11:47Z","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 friction of a sliding plate on a thin immersed granular layer obeys Amonton-Coulomb law. We bring to the fore a large set of experimental results which indicate that, over a few decades of values, the effective dynamical friction-coefficient depends neither on the viscosity of the interstitial fluid nor on the size of beads in the sheared layer, which bears out the analogy with the solid-solid friction in a wide range of experimental parameters. We accurately determine the granular-layer dilatancy, which dependance on the grain size and slider velocity can be qualitatively accounted by con","authors_text":"Jean-Christophe G\\'eminard, Thibaut Divoux","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-06-10T11:02:57Z","title":"Friction and dilatancy in immersed granular matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.1635","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":"sha256:2166640e5cada024f30566f0298ef508fd8e47fed6345f9ce4474c2aa6d99de5","target":"record","created_at":"2026-05-18T03:11:47Z","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":"b567f9c0054bd3079c39c830cb26fcb35eb20e0bda6370f92c9081a415cecae5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2008-06-10T11:02:57Z","title_canon_sha256":"7d9ab116d544edccc688f7ad60d3c95d2d0bfba44d49b4147c8a1d321080d09b"},"schema_version":"1.0","source":{"id":"0806.1635","kind":"arxiv","version":1}},"canonical_sha256":"0958f2af2a0da6e47445913e6f6809faaf5f9ad39831ed651f2879bb9551f070","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0958f2af2a0da6e47445913e6f6809faaf5f9ad39831ed651f2879bb9551f070","first_computed_at":"2026-05-18T03:11:47.578022Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:11:47.578022Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r0/baZ6I/8zmRVSFvTIeBWDJr4/jTeN4JQz54Zfi5eLp5gEtdEVJ2q44rohnlDvOUAC+X+WadWeFmk1s95JLBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:11:47.578749Z","signed_message":"canonical_sha256_bytes"},"source_id":"0806.1635","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2166640e5cada024f30566f0298ef508fd8e47fed6345f9ce4474c2aa6d99de5","sha256:12c8c8a4f3caa97ed1f99a77a637c4be49d77dec0d46cac51edeb272476a1f7c"],"state_sha256":"7432a26d680c93670624ec38c018b72b46d08f3a614de3f665b76c7d6f9f6fd1"}