{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:4KPNFNV3F3UN4MPBX5XFWVGJAP","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":"1ded37edb4f1a3b8d358d01ba0b2259bc573063ec2da3fa46ea7381e4e74d720","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2019-06-02T20:33:22Z","title_canon_sha256":"61a824edd89960179b1ce3ed4f888a14619010d1c7bdecdb3021d653f0874642"},"schema_version":"1.0","source":{"id":"1906.00478","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.00478","created_at":"2026-07-05T04:41:22Z"},{"alias_kind":"arxiv_version","alias_value":"1906.00478v3","created_at":"2026-07-05T04:41:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.00478","created_at":"2026-07-05T04:41:22Z"},{"alias_kind":"pith_short_12","alias_value":"4KPNFNV3F3UN","created_at":"2026-07-05T04:41:22Z"},{"alias_kind":"pith_short_16","alias_value":"4KPNFNV3F3UN4MPB","created_at":"2026-07-05T04:41:22Z"},{"alias_kind":"pith_short_8","alias_value":"4KPNFNV3","created_at":"2026-07-05T04:41:22Z"}],"graph_snapshots":[{"event_id":"sha256:99ca6383e98fbba20a36597e6f8c1c26b2600b1636854b0311883dcf4ef7fc29","target":"graph","created_at":"2026-07-05T04:41:22Z","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/1906.00478/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we present Ara, a 64-bit vector processor based on the version 0.5 draft of RISC-V's vector extension, implemented in GlobalFoundries 22FDX FD-SOI technology. Ara's microarchitecture is scalable, as it is composed of a set of identical lanes, each containing part of the processor's vector register file and functional units. It achieves up to 97% FPU utilization when running a 256 x 256 double precision matrix multiplication on sixteen lanes. Ara runs at more than 1 GHz in the typical corner (TT/0.80V/25 oC) achieving a performance up to 33 DP-GFLOPS. In terms of energy efficienc","authors_text":"Fabian Schuiki, Florian Zaruba, Luca Benini, Matheus Cavalcante, Michael Schaffner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2019-06-02T20:33:22Z","title":"Ara: A 1 GHz+ Scalable and Energy-Efficient RISC-V Vector Processor with Multi-Precision Floating Point Support in 22 nm FD-SOI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.00478","kind":"arxiv","version":3},"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":"sha256:51543bbc679d3f3c77007813498203a7406ffb9dab7cd28632f15ec209d017e4","target":"record","created_at":"2026-07-05T04:41:22Z","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":"1ded37edb4f1a3b8d358d01ba0b2259bc573063ec2da3fa46ea7381e4e74d720","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2019-06-02T20:33:22Z","title_canon_sha256":"61a824edd89960179b1ce3ed4f888a14619010d1c7bdecdb3021d653f0874642"},"schema_version":"1.0","source":{"id":"1906.00478","kind":"arxiv","version":3}},"canonical_sha256":"e29ed2b6bb2ee8de31e1bf6e5b54c903c7b237834c880ef14f8009e2b60e5465","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e29ed2b6bb2ee8de31e1bf6e5b54c903c7b237834c880ef14f8009e2b60e5465","first_computed_at":"2026-07-05T04:41:22.474893Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:41:22.474893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ldMzPb+d7gNRCnaLpONBH1mbwZiDC5ko6tooqBjyYfhabzuTFZV6cMH6fiO1n0iV8CSRk6qvU5TGHJvI9phcCw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:41:22.475273Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.00478","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51543bbc679d3f3c77007813498203a7406ffb9dab7cd28632f15ec209d017e4","sha256:99ca6383e98fbba20a36597e6f8c1c26b2600b1636854b0311883dcf4ef7fc29"],"state_sha256":"51a606ee453ee130add0f75574a0aa36715d05f602eb0eca38c96174fa695d6b"}