{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:EJE6UV3YOOQ76L7NLNBASFO5XH","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":"734a4a902217ac1df711d23bef4f49b02ab5fc19994d9e15a8c771d6b1dbba38","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-16T16:32:20Z","title_canon_sha256":"73e4035f383a4f22301d30c2d7c9f1c29548650165320913269fb71f8a6a9c52"},"schema_version":"1.0","source":{"id":"1509.04973","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.04973","created_at":"2026-05-18T00:53:26Z"},{"alias_kind":"arxiv_version","alias_value":"1509.04973v3","created_at":"2026-05-18T00:53:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.04973","created_at":"2026-05-18T00:53:26Z"},{"alias_kind":"pith_short_12","alias_value":"EJE6UV3YOOQ7","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"EJE6UV3YOOQ76L7N","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"EJE6UV3Y","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:55faab9beb9ed2586601e4ad31050e1184265a4d67962146ab04ec1cf7cf7d33","target":"graph","created_at":"2026-05-18T00:53:26Z","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":"Extra-large deformations in ultra-soft elastic materials are ubiquitous, yet systematic studies and methods to understand the mechanics of such huge strains are lacking. Here we investigate this complex problem systematically with a simple experiment: by introducing a heavy bead of radius $a$ in an incompressible ultra-soft elastic medium. We find a scaling law for the penetration depth ($\\delta$) of the bead inside the softest gels as $\\delta \\sim a^{3/2}$. While this result is inconsistent with an ideal neo-Hookean model of elastic deformation, according to which the displacement fields must","authors_text":"Aditi Chakrabarti, Manoj K. Chaudhury, Serge Mora, Yves Pomeau","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-16T16:32:20Z","title":"Elasto-buoyant heavy spheres: a unique way to test non-linear elasticity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.04973","kind":"arxiv","version":3},"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":"sha256:42434602d99f0360ee159a8e44e9315601a7dd878e00566e15d8aaf75a25b3fd","target":"record","created_at":"2026-05-18T00:53:26Z","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":"734a4a902217ac1df711d23bef4f49b02ab5fc19994d9e15a8c771d6b1dbba38","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-16T16:32:20Z","title_canon_sha256":"73e4035f383a4f22301d30c2d7c9f1c29548650165320913269fb71f8a6a9c52"},"schema_version":"1.0","source":{"id":"1509.04973","kind":"arxiv","version":3}},"canonical_sha256":"2249ea577873a1ff2fed5b420915ddb9fb421257469d2b293f0e7fc85c9598c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2249ea577873a1ff2fed5b420915ddb9fb421257469d2b293f0e7fc85c9598c6","first_computed_at":"2026-05-18T00:53:26.329019Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:26.329019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VnT6CtEi0Yqr1gB8oFgAdsw7dUERN8dSdVHr5yzvD0nVLMm8HW7cusy1yLeDnT70dnBKTLSeYNTiw8IDvuBFCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:26.329390Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.04973","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:42434602d99f0360ee159a8e44e9315601a7dd878e00566e15d8aaf75a25b3fd","sha256:55faab9beb9ed2586601e4ad31050e1184265a4d67962146ab04ec1cf7cf7d33"],"state_sha256":"a03e372c713ab300ccbab3042d26cd5c1eb3ca37ec9b91c889e0bec83dcd19c5"}