{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:E4RGRWQSUYVNNHLBCJXEAM3FFH","short_pith_number":"pith:E4RGRWQS","schema_version":"1.0","canonical_sha256":"272268da12a62ad69d61126e40336529d28e194cf8a5f91d2913895316be8656","source":{"kind":"arxiv","id":"2507.01071","version":1},"attestation_state":"computed","paper":{"title":"Orthotropic Viscoelastic Creep in Cellular Scaffolds","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","physics.bio-ph"],"primary_cat":"q-bio.CB","authors_text":"Alessia Ferrara, Falk K. Wittel","submitted_at":"2025-07-01T08:35:44Z","abstract_excerpt":"Recent measurements of Norway spruce have revealed stress-state-dependent normalized creep behavior, highlighting a gap in our fundamental understanding. This study examines whether the anisotropic response originates from the micro-structural, cellular nature of composite cell walls with varying tracheid types. Cell wall creep parameters are identified via surrogate-based inverse parameter identification, applied to hierarchical micro-mechanical and FEM models of increasing topological complexity up to the growth ring scale. Despite microstructural disorder, simulated creep curves converge to"},"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":"2507.01071","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"q-bio.CB","submitted_at":"2025-07-01T08:35:44Z","cross_cats_sorted":["cond-mat.mtrl-sci","physics.bio-ph"],"title_canon_sha256":"6541f1286bab2a969bad758d2d145791b9d8798688b2806ba69bd33d5e55109b","abstract_canon_sha256":"8ec905e09b40085d593ddea16e78f50eb2f78e63fb180038dc66b87fa86451d3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:30:46.605092Z","signature_b64":"eagdCYHyt5vi1k+XkMOLW3wJ1eo4dwNufoyenbUXZh+88VkOIvSxvvZ/hnFzJvUva5QamXETSY7jHwjFaj71BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"272268da12a62ad69d61126e40336529d28e194cf8a5f91d2913895316be8656","last_reissued_at":"2026-07-05T11:30:46.604614Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:30:46.604614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Orthotropic Viscoelastic Creep in Cellular Scaffolds","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","physics.bio-ph"],"primary_cat":"q-bio.CB","authors_text":"Alessia Ferrara, Falk K. Wittel","submitted_at":"2025-07-01T08:35:44Z","abstract_excerpt":"Recent measurements of Norway spruce have revealed stress-state-dependent normalized creep behavior, highlighting a gap in our fundamental understanding. This study examines whether the anisotropic response originates from the micro-structural, cellular nature of composite cell walls with varying tracheid types. Cell wall creep parameters are identified via surrogate-based inverse parameter identification, applied to hierarchical micro-mechanical and FEM models of increasing topological complexity up to the growth ring scale. Despite microstructural disorder, simulated creep curves converge to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.01071","kind":"arxiv","version":1},"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/2507.01071/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":"2507.01071","created_at":"2026-07-05T11:30:46.604672+00:00"},{"alias_kind":"arxiv_version","alias_value":"2507.01071v1","created_at":"2026-07-05T11:30:46.604672+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.01071","created_at":"2026-07-05T11:30:46.604672+00:00"},{"alias_kind":"pith_short_12","alias_value":"E4RGRWQSUYVN","created_at":"2026-07-05T11:30:46.604672+00:00"},{"alias_kind":"pith_short_16","alias_value":"E4RGRWQSUYVNNHLB","created_at":"2026-07-05T11:30:46.604672+00:00"},{"alias_kind":"pith_short_8","alias_value":"E4RGRWQS","created_at":"2026-07-05T11:30:46.604672+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/E4RGRWQSUYVNNHLBCJXEAM3FFH","json":"https://pith.science/pith/E4RGRWQSUYVNNHLBCJXEAM3FFH.json","graph_json":"https://pith.science/api/pith-number/E4RGRWQSUYVNNHLBCJXEAM3FFH/graph.json","events_json":"https://pith.science/api/pith-number/E4RGRWQSUYVNNHLBCJXEAM3FFH/events.json","paper":"https://pith.science/paper/E4RGRWQS"},"agent_actions":{"view_html":"https://pith.science/pith/E4RGRWQSUYVNNHLBCJXEAM3FFH","download_json":"https://pith.science/pith/E4RGRWQSUYVNNHLBCJXEAM3FFH.json","view_paper":"https://pith.science/paper/E4RGRWQS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2507.01071&json=true","fetch_graph":"https://pith.science/api/pith-number/E4RGRWQSUYVNNHLBCJXEAM3FFH/graph.json","fetch_events":"https://pith.science/api/pith-number/E4RGRWQSUYVNNHLBCJXEAM3FFH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/E4RGRWQSUYVNNHLBCJXEAM3FFH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/E4RGRWQSUYVNNHLBCJXEAM3FFH/action/storage_attestation","attest_author":"https://pith.science/pith/E4RGRWQSUYVNNHLBCJXEAM3FFH/action/author_attestation","sign_citation":"https://pith.science/pith/E4RGRWQSUYVNNHLBCJXEAM3FFH/action/citation_signature","submit_replication":"https://pith.science/pith/E4RGRWQSUYVNNHLBCJXEAM3FFH/action/replication_record"}},"created_at":"2026-07-05T11:30:46.604672+00:00","updated_at":"2026-07-05T11:30:46.604672+00:00"}