{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:3ELGHASHPT6ZTQ72M5M6WP26CJ","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":"4bb3f6b9f4ffe5c37fb9440ef14db4e714ff28adaf131275ef2537b0265a7daf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-11T12:21:43Z","title_canon_sha256":"56218974913edea7b4df16248b147b9d9339bc72a3d12efda7aa99d015e51d9a"},"schema_version":"1.0","source":{"id":"1310.3102","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3102","created_at":"2026-05-18T03:05:27Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3102v3","created_at":"2026-05-18T03:05:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3102","created_at":"2026-05-18T03:05:27Z"},{"alias_kind":"pith_short_12","alias_value":"3ELGHASHPT6Z","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"3ELGHASHPT6ZTQ72","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"3ELGHASH","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:89c76d27597daf9c5ee2519cf5c84896845da50e3f299d407b8362b469bbbb8c","target":"graph","created_at":"2026-05-18T03:05:27Z","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":"Pentamode metamaterials approximate tailorable artificial liquids. Recently, microscopic versions of these intricate three-dimensional structures have been fabricated, but direct experimental characterization has not been possible yet. Here, using three-dimensional printing, we fabricate macroscopic polymer-based samples with many different combinations of the small connection diameter $d$ and the lattice constant $a$. Direct measurements of the static shear modulus and the Young's modulus reveal that both scale approximately according to $(d/a)^3$, in good agreement with continuum-mechanics c","authors_text":"Martin Wegener, Muamer Kadic, Robert Schittny, Tiemo B\\\"uckmann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-11T12:21:43Z","title":"Elastic measurements on macroscopic three-dimensional pentamode metamaterials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3102","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":"sha256:078f600e71aef096b102b555ece575a75e7d9fc9f66490d475597512d08d6fc0","target":"record","created_at":"2026-05-18T03:05:27Z","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":"4bb3f6b9f4ffe5c37fb9440ef14db4e714ff28adaf131275ef2537b0265a7daf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-10-11T12:21:43Z","title_canon_sha256":"56218974913edea7b4df16248b147b9d9339bc72a3d12efda7aa99d015e51d9a"},"schema_version":"1.0","source":{"id":"1310.3102","kind":"arxiv","version":3}},"canonical_sha256":"d9166382477cfd99c3fa6759eb3f5e127eb196f824462fd2051af99d5dac0a5b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9166382477cfd99c3fa6759eb3f5e127eb196f824462fd2051af99d5dac0a5b","first_computed_at":"2026-05-18T03:05:27.824250Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:05:27.824250Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PUBWh5WenlwfJLlcuoH2b6oe0K19txmh43XluQZs5Se2gk/FGAO3VbHY1SuyO6XNsbXe/MGTot9trUJsR9wcCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:05:27.824833Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.3102","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:078f600e71aef096b102b555ece575a75e7d9fc9f66490d475597512d08d6fc0","sha256:89c76d27597daf9c5ee2519cf5c84896845da50e3f299d407b8362b469bbbb8c"],"state_sha256":"cfe13bbdff35aea7d0d5b6470a7131359f779b6c970d64b8c06ae55e5097515c"}