{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LVU4AI7IPHPWND4MAL5YALYD6X","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":"b2fe292a2c9c3185bfc97973d243326d93cbe64751875fe017f97722106e30ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-26T19:05:56Z","title_canon_sha256":"755d207482407edb0355497ad77aa69e27185b45f6ed28ae23d7b6bf4eff8b39"},"schema_version":"1.0","source":{"id":"1604.07798","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.07798","created_at":"2026-05-18T01:12:48Z"},{"alias_kind":"arxiv_version","alias_value":"1604.07798v2","created_at":"2026-05-18T01:12:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.07798","created_at":"2026-05-18T01:12:48Z"},{"alias_kind":"pith_short_12","alias_value":"LVU4AI7IPHPW","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LVU4AI7IPHPWND4M","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LVU4AI7I","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:7c5717574c7dd2b6e3cd1aaff2135d371d8ebdaf491912e0b14eb1cf3998d60c","target":"graph","created_at":"2026-05-18T01:12:48Z","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 fibrous herringbone-modified helicoidal architecture is identified within the exocuticle of an impact-resistant crustacean appendage. This previously unreported composite microstructure, which features highly textured apatite mineral templated by an alpha-chitin matrix, provides enhanced stress redistribution and energy absorption over the traditional helicoidal design under compressive loading. Nanoscale toughening mechanisms are also identified using high load nanoindentation and in-situ TEM picoindentation.","authors_text":"David Kisailus, Edward L. Principe, Eric Hintsala, Jae-Young Jung, Joanna McKittrick, Jon M. Hiller, Leigh Sheppard, Lessa K. Grunenfelder, Mark Betts, Nicholas A. Yaraghi, Nicol\\'as Guar\\'in-Zapata, Pablo D. Zavattieri, Richard Wuhrer, Sanjit Bhowmick","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-26T19:05:56Z","title":"A Sinusoidally-Architected Helicoidal Biocomposite"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.07798","kind":"arxiv","version":2},"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:cf982bdef2bc861e527dba916c3d47acf86ac1167073eac50b6ec593f90ff6c5","target":"record","created_at":"2026-05-18T01:12:48Z","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":"b2fe292a2c9c3185bfc97973d243326d93cbe64751875fe017f97722106e30ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-04-26T19:05:56Z","title_canon_sha256":"755d207482407edb0355497ad77aa69e27185b45f6ed28ae23d7b6bf4eff8b39"},"schema_version":"1.0","source":{"id":"1604.07798","kind":"arxiv","version":2}},"canonical_sha256":"5d69c023e879df668f8c02fb802f03f5f32c6d355f84e4aaed278049a0c37c28","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5d69c023e879df668f8c02fb802f03f5f32c6d355f84e4aaed278049a0c37c28","first_computed_at":"2026-05-18T01:12:48.338710Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:48.338710Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j5d1rUP3680kcf2WYyXR3sysXVPKG3jAmvbILljLe1otjw52vIqAP/PrGWHMLqqJ4CquPADiYMAr/y5xd1ysDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:48.339199Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.07798","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf982bdef2bc861e527dba916c3d47acf86ac1167073eac50b6ec593f90ff6c5","sha256:7c5717574c7dd2b6e3cd1aaff2135d371d8ebdaf491912e0b14eb1cf3998d60c"],"state_sha256":"60d9caa55ee53c72206ae10b2aa2f2a931a1555cc2d741f1d5dad290de229182"}