{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:6KDB47LSJZFVCLKPDQSZ5U2KBX","short_pith_number":"pith:6KDB47LS","schema_version":"1.0","canonical_sha256":"f2861e7d724e4b512d4f1c259ed34a0de6b56b91452870768cd0654bbbe6fd40","source":{"kind":"arxiv","id":"2004.04137","version":3},"attestation_state":"computed","paper":{"title":"Dilute concentrations of submicron particles do not alter the brittle fracture of polyacrylamide hydrogels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Albert Taureg (1), John M. Kolinski (1) ((1) \\'Ecole Polytechnique F\\'ed\\'erale de Lausanne, Lausanne, Switzerland)","submitted_at":"2020-04-08T17:45:35Z","abstract_excerpt":"In studies of the dynamic failure of brittle hydrogels, a bound has been placed on the process zone scale - the scale where material separation and ultimate failure occur. For the polyacrylamide hydrogel system under study, this bound is set at 20 microns. Thus, any subtle alterations to the material at a \\emph{smaller} scale should not in principle alter the dynamic fracture response of the hydrogel. Here we test this directly by embedding sub-micron-scale latex polystyrene microspheres within the brittle polyacrylamide hydrogel at a solids fraction of 0.1 \\%. We verify that the spheres are w"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2004.04137","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2020-04-08T17:45:35Z","cross_cats_sorted":[],"title_canon_sha256":"232b101aee6a81b4c5fcdd7f160db14776f1c5a334f17a72878b0fc2832abc36","abstract_canon_sha256":"4bf7450d2eb91c664f481eed9ed849f653afb5bdd5cad18e55ed102fd028e6a6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:00:50.704026Z","signature_b64":"nFM8kBklmeqiOMZszM88ImtrxIz+JhqC52d39QYfByphCR6QlpkMUsrvPLhykQO/nIdlyqlNacf/GabirvYJBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2861e7d724e4b512d4f1c259ed34a0de6b56b91452870768cd0654bbbe6fd40","last_reissued_at":"2026-07-05T01:00:50.703605Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:00:50.703605Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dilute concentrations of submicron particles do not alter the brittle fracture of polyacrylamide hydrogels","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Albert Taureg (1), John M. Kolinski (1) ((1) \\'Ecole Polytechnique F\\'ed\\'erale de Lausanne, Lausanne, Switzerland)","submitted_at":"2020-04-08T17:45:35Z","abstract_excerpt":"In studies of the dynamic failure of brittle hydrogels, a bound has been placed on the process zone scale - the scale where material separation and ultimate failure occur. For the polyacrylamide hydrogel system under study, this bound is set at 20 microns. Thus, any subtle alterations to the material at a \\emph{smaller} scale should not in principle alter the dynamic fracture response of the hydrogel. Here we test this directly by embedding sub-micron-scale latex polystyrene microspheres within the brittle polyacrylamide hydrogel at a solids fraction of 0.1 \\%. We verify that the spheres are w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.04137","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.04137/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2004.04137","created_at":"2026-07-05T01:00:50.703662+00:00"},{"alias_kind":"arxiv_version","alias_value":"2004.04137v3","created_at":"2026-07-05T01:00:50.703662+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.04137","created_at":"2026-07-05T01:00:50.703662+00:00"},{"alias_kind":"pith_short_12","alias_value":"6KDB47LSJZFV","created_at":"2026-07-05T01:00:50.703662+00:00"},{"alias_kind":"pith_short_16","alias_value":"6KDB47LSJZFVCLKP","created_at":"2026-07-05T01:00:50.703662+00:00"},{"alias_kind":"pith_short_8","alias_value":"6KDB47LS","created_at":"2026-07-05T01:00:50.703662+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX","json":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX.json","graph_json":"https://pith.science/api/pith-number/6KDB47LSJZFVCLKPDQSZ5U2KBX/graph.json","events_json":"https://pith.science/api/pith-number/6KDB47LSJZFVCLKPDQSZ5U2KBX/events.json","paper":"https://pith.science/paper/6KDB47LS"},"agent_actions":{"view_html":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX","download_json":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX.json","view_paper":"https://pith.science/paper/6KDB47LS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2004.04137&json=true","fetch_graph":"https://pith.science/api/pith-number/6KDB47LSJZFVCLKPDQSZ5U2KBX/graph.json","fetch_events":"https://pith.science/api/pith-number/6KDB47LSJZFVCLKPDQSZ5U2KBX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX/action/storage_attestation","attest_author":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX/action/author_attestation","sign_citation":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX/action/citation_signature","submit_replication":"https://pith.science/pith/6KDB47LSJZFVCLKPDQSZ5U2KBX/action/replication_record"}},"created_at":"2026-07-05T01:00:50.703662+00:00","updated_at":"2026-07-05T01:00:50.703662+00:00"}