{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:F4H6DSOS5FLTKXEDQHS2GLYEDQ","short_pith_number":"pith:F4H6DSOS","canonical_record":{"source":{"id":"2203.10359","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2022-03-19T17:21:01Z","cross_cats_sorted":["cs.OS"],"title_canon_sha256":"d06d3e50c25e7cb76bd22b1f99269c8ec85c8e075fa7d0c29c7bf431e14caf01","abstract_canon_sha256":"e02ca94da0f012d2b0561d7be4bfb2f70f917c53c67791c3489ceb70a3e9a513"},"schema_version":"1.0"},"canonical_sha256":"2f0fe1c9d2e957355c8381e5a32f041c09f73e6cf897a9a333a34323c19f4dbf","source":{"kind":"arxiv","id":"2203.10359","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.10359","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"arxiv_version","alias_value":"2203.10359v3","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.10359","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"pith_short_12","alias_value":"F4H6DSOS5FLT","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"pith_short_16","alias_value":"F4H6DSOS5FLTKXED","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"pith_short_8","alias_value":"F4H6DSOS","created_at":"2026-07-05T04:50:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:F4H6DSOS5FLTKXEDQHS2GLYEDQ","target":"record","payload":{"canonical_record":{"source":{"id":"2203.10359","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2022-03-19T17:21:01Z","cross_cats_sorted":["cs.OS"],"title_canon_sha256":"d06d3e50c25e7cb76bd22b1f99269c8ec85c8e075fa7d0c29c7bf431e14caf01","abstract_canon_sha256":"e02ca94da0f012d2b0561d7be4bfb2f70f917c53c67791c3489ceb70a3e9a513"},"schema_version":"1.0"},"canonical_sha256":"2f0fe1c9d2e957355c8381e5a32f041c09f73e6cf897a9a333a34323c19f4dbf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:50:15.269861Z","signature_b64":"CdVpfGNR2TcNuxuKXkeyWeoBLJHhuryRJaYusrLSU30kjYmvxU2IPDOT79mHL/uurEzeay18X5ifjD90jWOOAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f0fe1c9d2e957355c8381e5a32f041c09f73e6cf897a9a333a34323c19f4dbf","last_reissued_at":"2026-07-05T04:50:15.269457Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:50:15.269457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.10359","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:50:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RH53BpnUq+X+uxYWQFUULwMwZGRDHZGA2szblLeHzNxdkTTwaspSVVFSIRnXtBwVutBlotScf4jqovALr2VzCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T00:59:18.877201Z"},"content_sha256":"da1b92a07c1fc831771f56b412b58304b2146c3b3a25bbf85d995c884a059e64","schema_version":"1.0","event_id":"sha256:da1b92a07c1fc831771f56b412b58304b2146c3b3a25bbf85d995c884a059e64"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:F4H6DSOS5FLTKXEDQHS2GLYEDQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FPGA-extended General Purpose Computer Architecture","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.OS"],"primary_cat":"cs.AR","authors_text":"Myrtle Shah, Philippos Papaphilippou","submitted_at":"2022-03-19T17:21:01Z","abstract_excerpt":"This paper introduces a computer architecture, where part of the instruction set architecture (ISA) is implemented on small highly-integrated field-programmable gate arrays (FPGAs). Small FPGAs inside a general-purpose processor (CPU) can be used effectively to implement custom or standardised instructions. Our proposed architecture directly address related challenges for high-end CPUs, where such highly-integrated FPGAs would have the highest impact, such as on main memory bandwidth. This also enables software-transparent context-switching. The simulation-based evaluation of a dynamically rec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.10359","kind":"arxiv","version":3},"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/2203.10359/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:50:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x/S4b29to7QJm8AM9Cw8bB8FwoXCq6gueBSevIByEplphsJ75F1pBchfqu3KXwW2xwoDG8bddb3fViRAdG/FCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T00:59:18.877735Z"},"content_sha256":"d63d73a5a4298a696ee4ca6dfe95d8fd33364d434839e33e49e2c086bec02626","schema_version":"1.0","event_id":"sha256:d63d73a5a4298a696ee4ca6dfe95d8fd33364d434839e33e49e2c086bec02626"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F4H6DSOS5FLTKXEDQHS2GLYEDQ/bundle.json","state_url":"https://pith.science/pith/F4H6DSOS5FLTKXEDQHS2GLYEDQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F4H6DSOS5FLTKXEDQHS2GLYEDQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-06T00:59:18Z","links":{"resolver":"https://pith.science/pith/F4H6DSOS5FLTKXEDQHS2GLYEDQ","bundle":"https://pith.science/pith/F4H6DSOS5FLTKXEDQHS2GLYEDQ/bundle.json","state":"https://pith.science/pith/F4H6DSOS5FLTKXEDQHS2GLYEDQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F4H6DSOS5FLTKXEDQHS2GLYEDQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:F4H6DSOS5FLTKXEDQHS2GLYEDQ","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":"e02ca94da0f012d2b0561d7be4bfb2f70f917c53c67791c3489ceb70a3e9a513","cross_cats_sorted":["cs.OS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2022-03-19T17:21:01Z","title_canon_sha256":"d06d3e50c25e7cb76bd22b1f99269c8ec85c8e075fa7d0c29c7bf431e14caf01"},"schema_version":"1.0","source":{"id":"2203.10359","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.10359","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"arxiv_version","alias_value":"2203.10359v3","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.10359","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"pith_short_12","alias_value":"F4H6DSOS5FLT","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"pith_short_16","alias_value":"F4H6DSOS5FLTKXED","created_at":"2026-07-05T04:50:15Z"},{"alias_kind":"pith_short_8","alias_value":"F4H6DSOS","created_at":"2026-07-05T04:50:15Z"}],"graph_snapshots":[{"event_id":"sha256:d63d73a5a4298a696ee4ca6dfe95d8fd33364d434839e33e49e2c086bec02626","target":"graph","created_at":"2026-07-05T04:50:15Z","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/2203.10359/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper introduces a computer architecture, where part of the instruction set architecture (ISA) is implemented on small highly-integrated field-programmable gate arrays (FPGAs). Small FPGAs inside a general-purpose processor (CPU) can be used effectively to implement custom or standardised instructions. Our proposed architecture directly address related challenges for high-end CPUs, where such highly-integrated FPGAs would have the highest impact, such as on main memory bandwidth. This also enables software-transparent context-switching. The simulation-based evaluation of a dynamically rec","authors_text":"Myrtle Shah, Philippos Papaphilippou","cross_cats":["cs.OS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2022-03-19T17:21:01Z","title":"FPGA-extended General Purpose Computer Architecture"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.10359","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:da1b92a07c1fc831771f56b412b58304b2146c3b3a25bbf85d995c884a059e64","target":"record","created_at":"2026-07-05T04:50:15Z","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":"e02ca94da0f012d2b0561d7be4bfb2f70f917c53c67791c3489ceb70a3e9a513","cross_cats_sorted":["cs.OS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2022-03-19T17:21:01Z","title_canon_sha256":"d06d3e50c25e7cb76bd22b1f99269c8ec85c8e075fa7d0c29c7bf431e14caf01"},"schema_version":"1.0","source":{"id":"2203.10359","kind":"arxiv","version":3}},"canonical_sha256":"2f0fe1c9d2e957355c8381e5a32f041c09f73e6cf897a9a333a34323c19f4dbf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2f0fe1c9d2e957355c8381e5a32f041c09f73e6cf897a9a333a34323c19f4dbf","first_computed_at":"2026-07-05T04:50:15.269457Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:50:15.269457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CdVpfGNR2TcNuxuKXkeyWeoBLJHhuryRJaYusrLSU30kjYmvxU2IPDOT79mHL/uurEzeay18X5ifjD90jWOOAw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:50:15.269861Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.10359","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:da1b92a07c1fc831771f56b412b58304b2146c3b3a25bbf85d995c884a059e64","sha256:d63d73a5a4298a696ee4ca6dfe95d8fd33364d434839e33e49e2c086bec02626"],"state_sha256":"9a85da55d96528df791bb0fa6b00077e43128bdd882da5ba77e46c765909e761"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O9Gtp3H6K0rySLlrNPvGKo0EIOvogIMy/R4hX4jugEQvCGtf76fTGqLCfCr0iWzLETP7NQ6OPPTPy1hs8AHsCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T00:59:18.883246Z","bundle_sha256":"768e007a880cdf651a172438f5912649f7e338082344e917db98ec798b4a43e4"}}