{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LD5XZVA25IW4O3NOCIZPQUH7KA","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":"8fdb3b8523e323ac8c7270d1aa4743721233142fed78124ef5700c2bf191e786","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-11-17T17:23:48Z","title_canon_sha256":"26bdc84fe8f27eba54f383ad6a67b29aa0e71c98429dda14e64efef6d29971aa"},"schema_version":"1.0","source":{"id":"1811.07193","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.07193","created_at":"2026-07-05T02:21:32Z"},{"alias_kind":"arxiv_version","alias_value":"1811.07193v2","created_at":"2026-07-05T02:21:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.07193","created_at":"2026-07-05T02:21:32Z"},{"alias_kind":"pith_short_12","alias_value":"LD5XZVA25IW4","created_at":"2026-07-05T02:21:32Z"},{"alias_kind":"pith_short_16","alias_value":"LD5XZVA25IW4O3NO","created_at":"2026-07-05T02:21:32Z"},{"alias_kind":"pith_short_8","alias_value":"LD5XZVA2","created_at":"2026-07-05T02:21:32Z"}],"graph_snapshots":[{"event_id":"sha256:04febfe892647aaccaf48df71097fd06affd50e83afb44d0d175b597866fec5c","target":"graph","created_at":"2026-07-05T02:21:32Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1811.07193/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The mechanical response of syntactic foams comprising hollow thermoplastic microspheres (HTMs) embedded in a polyurethane matrix were experimentally examined under uniaxial compressive strain. Phenomenological strain energy models were subsequently developed to capture both the axial stress-strain and transverse strain response of the foams. HTM syntactic foams were found to exhibit increased small-strain stiffness with reduced density, revealing a highly tuneable and extremely lightweight syntactic foam blend for applications. The foams were also found to become strongly compressible at large","authors_text":"Michael J. A. Smith, Prasad Potluri, William J. Parnell, Zeshan Yousaf","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-11-17T17:23:48Z","title":"Modelling hollow thermoplastic syntactic foams under high-strain compressive loading"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.07193","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:a430246d92c8438ec6384c8fa839fe18ea60fe584db44e38a464daff574cc38e","target":"record","created_at":"2026-07-05T02:21:32Z","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":"8fdb3b8523e323ac8c7270d1aa4743721233142fed78124ef5700c2bf191e786","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2018-11-17T17:23:48Z","title_canon_sha256":"26bdc84fe8f27eba54f383ad6a67b29aa0e71c98429dda14e64efef6d29971aa"},"schema_version":"1.0","source":{"id":"1811.07193","kind":"arxiv","version":2}},"canonical_sha256":"58fb7cd41aea2dc76dae1232f850ff5034067fa68f3e633c1e4dfb0b9da2c19a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58fb7cd41aea2dc76dae1232f850ff5034067fa68f3e633c1e4dfb0b9da2c19a","first_computed_at":"2026-07-05T02:21:32.406232Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:21:32.406232Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WnD0Iop9XdfO6t4CH8ueSJEvOIetBL2sevQnk05ql2EQKR9KaFly5dqWtSjouF1SHNCzV+c6dphm99YZA4C1BA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:21:32.406637Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.07193","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a430246d92c8438ec6384c8fa839fe18ea60fe584db44e38a464daff574cc38e","sha256:04febfe892647aaccaf48df71097fd06affd50e83afb44d0d175b597866fec5c"],"state_sha256":"981e20caaac0f83b3dbdf16473fda06b32aba5a1e65d7e2bfd95a10e269464b4"}