{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:Y4SGE4TAFDLRRRI4XMLN76I65I","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":"4c840db9ab89fcf3b8b4b78c701775d6d8e976469f4eab761172a53ff74c5fe7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-06-17T11:01:39Z","title_canon_sha256":"8864d7e65480cc6329a9123efdf1a63b3dc9e8a01b16517dc42961bf2682099a"},"schema_version":"1.0","source":{"id":"2606.18927","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.18927","created_at":"2026-06-19T16:11:52Z"},{"alias_kind":"arxiv_version","alias_value":"2606.18927v1","created_at":"2026-06-19T16:11:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18927","created_at":"2026-06-19T16:11:52Z"},{"alias_kind":"pith_short_12","alias_value":"Y4SGE4TAFDLR","created_at":"2026-06-19T16:11:52Z"},{"alias_kind":"pith_short_16","alias_value":"Y4SGE4TAFDLRRRI4","created_at":"2026-06-19T16:11:52Z"},{"alias_kind":"pith_short_8","alias_value":"Y4SGE4TA","created_at":"2026-06-19T16:11:52Z"}],"graph_snapshots":[{"event_id":"sha256:d8059617365db08b4e130140a9276ba0144bd9ecd9ce4a6e242efdcfd9dafc2a","target":"graph","created_at":"2026-06-19T16:11:52Z","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/2606.18927/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The exascale computing era, driven by heterogeneous GPU architectures, requires a fundamental redesign of traditional CFD solvers to fully leverage those heterogeneous systems. The discontinuous Galerkin spectral element method (DGSEM) provides an ideal foundation for this transition due to its high-order accuracy and local computational stencil. This work presents recent advances in the development and application of the architecture-agnostic DGSEM framework GAL{\\AE}XI by linking hardware optimization, software implementation, and physical validation. The performance of GAL{\\AE}XI on the AMD ","authors_text":"Andrea Beck, Andreas Wanninger, Anna Schwarz, Johanna Hintz, Justin Du Plessis, Patrick Kopper, Rohan Kaushik, Spencer Starr","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-06-17T11:01:39Z","title":"APU-Accelerated Large Eddy Simulation with the Discontinuous Galerkin Solver GAL{\\AE}XI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18927","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":"sha256:26592aa6904fa95780e67ce5f6ca305e159b6321b20b47d274e0f893c498b3e2","target":"record","created_at":"2026-06-19T16:11:52Z","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":"4c840db9ab89fcf3b8b4b78c701775d6d8e976469f4eab761172a53ff74c5fe7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2026-06-17T11:01:39Z","title_canon_sha256":"8864d7e65480cc6329a9123efdf1a63b3dc9e8a01b16517dc42961bf2682099a"},"schema_version":"1.0","source":{"id":"2606.18927","kind":"arxiv","version":1}},"canonical_sha256":"c72462726028d718c51cbb16dff91eea05927319bf49980c66493f53c092b166","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c72462726028d718c51cbb16dff91eea05927319bf49980c66493f53c092b166","first_computed_at":"2026-06-19T16:11:52.086806Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:11:52.086806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nfN8+WRD+Jh7B4UKreuu7XOtU07N50HxBYk8bhCEdksexWnTzc9VIVnb5aL/9lco4Fm5y9z4LetMSH4tQdGOAA==","signature_status":"signed_v1","signed_at":"2026-06-19T16:11:52.087186Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.18927","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:26592aa6904fa95780e67ce5f6ca305e159b6321b20b47d274e0f893c498b3e2","sha256:d8059617365db08b4e130140a9276ba0144bd9ecd9ce4a6e242efdcfd9dafc2a"],"state_sha256":"3fa8d6e9a8fb97e39e6d4aa503b55b193dbdf6905169488e4f0604b7d85a3522"}