{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4GSJAGHMUUGFIFPN7RXFY6C2XN","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":"30f98d15f83ac25ae533f9c5a74903de1888ad8cf5bd78507d657b2f32a06226","cross_cats_sorted":["cs.RO","cs.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2025-11-29T23:38:19Z","title_canon_sha256":"57ba12acb140c5a57993bf0f055735825554bfe9f8c7aac54576e50693a82f75"},"schema_version":"1.0","source":{"id":"2512.00667","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.00667","created_at":"2026-05-20T02:05:38Z"},{"alias_kind":"arxiv_version","alias_value":"2512.00667v2","created_at":"2026-05-20T02:05:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.00667","created_at":"2026-05-20T02:05:38Z"},{"alias_kind":"pith_short_12","alias_value":"4GSJAGHMUUGF","created_at":"2026-05-20T02:05:38Z"},{"alias_kind":"pith_short_16","alias_value":"4GSJAGHMUUGFIFPN","created_at":"2026-05-20T02:05:38Z"},{"alias_kind":"pith_short_8","alias_value":"4GSJAGHM","created_at":"2026-05-20T02:05:38Z"}],"graph_snapshots":[{"event_id":"sha256:fa3e388026855d65adeb18b4c7c49667b03fff5b51138de6c1f5ef76a2ac7475","target":"graph","created_at":"2026-05-20T02:05:38Z","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/2512.00667/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Effective medical simulators necessitate realistic haptic rendering of biological tissues that exhibit viscoelastic material properties, such as creep and stress relaxation. Fractional-order models provide an effective means of describing intrinsically time-dependent viscoelastic dynamics with few parameters, as they naturally capture memory effects. However, due to the unintuitive, frequency-dependent coupling among the order of the fractional element and other parameters, determining appropriate parameter values for fractional-order models that yield high perceived realism remains a signific","authors_text":"Gorkem Gemalmaz, Harun Tolasa, Volkan Patoglu","cross_cats":["cs.RO","cs.SY"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2025-11-29T23:38:19Z","title":"Active Learning of Fractional-Order Viscoelastic Model Parameters for Realistic Haptic Rendering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.00667","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":"sha256:566128b53e1a2abf43fed1eb7e3dce5a994941864f5a6f58dc719a8928f4e804","target":"record","created_at":"2026-05-20T02:05:38Z","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":"30f98d15f83ac25ae533f9c5a74903de1888ad8cf5bd78507d657b2f32a06226","cross_cats_sorted":["cs.RO","cs.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2025-11-29T23:38:19Z","title_canon_sha256":"57ba12acb140c5a57993bf0f055735825554bfe9f8c7aac54576e50693a82f75"},"schema_version":"1.0","source":{"id":"2512.00667","kind":"arxiv","version":2}},"canonical_sha256":"e1a49018eca50c5415edfc6e5c785abb66f8fafe5ec090ae888ba11775f0ee4e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1a49018eca50c5415edfc6e5c785abb66f8fafe5ec090ae888ba11775f0ee4e","first_computed_at":"2026-05-20T02:05:38.496136Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T02:05:38.496136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8xtuxd7bIGWXMo0uKJua62wLalcY9MIViRmc37l12fy3J4s5HAmqyHwkZPRwsiSIDRh/JBDlp/X4sRAe9ifRAw==","signature_status":"signed_v1","signed_at":"2026-05-20T02:05:38.496859Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.00667","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:566128b53e1a2abf43fed1eb7e3dce5a994941864f5a6f58dc719a8928f4e804","sha256:fa3e388026855d65adeb18b4c7c49667b03fff5b51138de6c1f5ef76a2ac7475"],"state_sha256":"ace8af9a52f82f4182baeaac229cc98d77cb3d1f4681cfae5a033f71545c53a7"}