{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:6ZOXM5QQ7FL64ACC4N7H37LWWO","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":"539aec16cf59886cdac6259d5bd6a8355a9beed63ae3ee5960cfd611d21ce67b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2021-10-26T02:49:06Z","title_canon_sha256":"9bcd17055705ad6ffc9a29771f20a7a95fa14dee379cbe71d460e4a30310708e"},"schema_version":"1.0","source":{"id":"2110.13368","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.13368","created_at":"2026-07-05T03:25:38Z"},{"alias_kind":"arxiv_version","alias_value":"2110.13368v1","created_at":"2026-07-05T03:25:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.13368","created_at":"2026-07-05T03:25:38Z"},{"alias_kind":"pith_short_12","alias_value":"6ZOXM5QQ7FL6","created_at":"2026-07-05T03:25:38Z"},{"alias_kind":"pith_short_16","alias_value":"6ZOXM5QQ7FL64ACC","created_at":"2026-07-05T03:25:38Z"},{"alias_kind":"pith_short_8","alias_value":"6ZOXM5QQ","created_at":"2026-07-05T03:25:38Z"}],"graph_snapshots":[{"event_id":"sha256:1d9deb511a216f8307f4c54422129a436f457998a8019761416e4a7955b201f9","target":"graph","created_at":"2026-07-05T03:25:38Z","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/2110.13368/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Computational biology has increasingly turned to agent-based modeling to explore complex biological systems. Biological diffusion (diffusion, decay, secretion, and uptake) is a key driver of biological tissues. GPU computing can vastly accelerate the diffusion and decay operators in the partial differential equations used to represent biological transport in an agent-based biological modeling system. In this paper, we utilize OpenACC to accelerate the diffusion portion of PhysiCell, a cross-platform agent-based biosimulation framework. We demonstrate an almost 40x speedup on the state-of-the-a","authors_text":"Matt Stack, Paul Macklin, Robert Searles, Sunita Chandrasekaran","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2021-10-26T02:49:06Z","title":"OpenACC Acceleration of an Agent-Based Biological Simulation Framework"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.13368","kind":"arxiv","version":1},"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:d111885190fadff267aacdd50eb6261f304b849e6b5fc712b5fbdaeaf202070d","target":"record","created_at":"2026-07-05T03:25:38Z","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":"539aec16cf59886cdac6259d5bd6a8355a9beed63ae3ee5960cfd611d21ce67b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2021-10-26T02:49:06Z","title_canon_sha256":"9bcd17055705ad6ffc9a29771f20a7a95fa14dee379cbe71d460e4a30310708e"},"schema_version":"1.0","source":{"id":"2110.13368","kind":"arxiv","version":1}},"canonical_sha256":"f65d767610f957ee0042e37e7dfd76b38e8cd2bf9caade1951a7186c03c4c239","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f65d767610f957ee0042e37e7dfd76b38e8cd2bf9caade1951a7186c03c4c239","first_computed_at":"2026-07-05T03:25:38.215537Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:25:38.215537Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g9YTHEm+TNpipb+/0VWxQADNHyZznjKBz32Gy6hoLopnsMxo1Q4R1wAgLsrSblz0FhIjb8wQWPSkrtIyyECQCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:25:38.215883Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.13368","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d111885190fadff267aacdd50eb6261f304b849e6b5fc712b5fbdaeaf202070d","sha256:1d9deb511a216f8307f4c54422129a436f457998a8019761416e4a7955b201f9"],"state_sha256":"ec9094e7129849626b6a87ae8c170da119d2d2619ca8741c47c2cdfe4c7d5248"}