{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:4J5S7XSRDIF2N3AZ45FT3SQA4G","short_pith_number":"pith:4J5S7XSR","canonical_record":{"source":{"id":"2504.07565","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.AR","submitted_at":"2025-04-10T08:56:03Z","cross_cats_sorted":[],"title_canon_sha256":"dc7a0dd3b07ef5bfa1ee8479636b0cab3d8c6221a72b9504105ad009ad135d38","abstract_canon_sha256":"20cb34e135fe394e4550cbb189ca131639fa8d85a3a201b3cf70d256f4d76a0b"},"schema_version":"1.0"},"canonical_sha256":"e27b2fde511a0ba6ec19e74b3dca00e1a6c2e7fa7726009ca75b2c5286ae7cbe","source":{"kind":"arxiv","id":"2504.07565","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.07565","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"arxiv_version","alias_value":"2504.07565v1","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.07565","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"pith_short_12","alias_value":"4J5S7XSRDIF2","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"pith_short_16","alias_value":"4J5S7XSRDIF2N3AZ","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"pith_short_8","alias_value":"4J5S7XSR","created_at":"2026-07-05T10:47:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:4J5S7XSRDIF2N3AZ45FT3SQA4G","target":"record","payload":{"canonical_record":{"source":{"id":"2504.07565","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.AR","submitted_at":"2025-04-10T08:56:03Z","cross_cats_sorted":[],"title_canon_sha256":"dc7a0dd3b07ef5bfa1ee8479636b0cab3d8c6221a72b9504105ad009ad135d38","abstract_canon_sha256":"20cb34e135fe394e4550cbb189ca131639fa8d85a3a201b3cf70d256f4d76a0b"},"schema_version":"1.0"},"canonical_sha256":"e27b2fde511a0ba6ec19e74b3dca00e1a6c2e7fa7726009ca75b2c5286ae7cbe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:47:10.893713Z","signature_b64":"gMvnxY2B8gIwnuno940FJ3RjKGwP/Evdyd5R04YhXKjHF3f6Wfs6Wil9vvxzeaKjVTftJe8Ky7x6+/v1SR24Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e27b2fde511a0ba6ec19e74b3dca00e1a6c2e7fa7726009ca75b2c5286ae7cbe","last_reissued_at":"2026-07-05T10:47:10.893242Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:47:10.893242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.07565","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:47:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0w6nhlwUeTuhhIVcpySvPVD2Z+3u9VYDVkAb4+Gj4XegDokhjbiskftrhjdmyWwi4JU+3ZUXR72vcklg7EToBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T06:30:48.838245Z"},"content_sha256":"474ca621ca81b31e5bb77075beddca710c1c3d88c8a00054d0957bbf8acf386f","schema_version":"1.0","event_id":"sha256:474ca621ca81b31e5bb77075beddca710c1c3d88c8a00054d0957bbf8acf386f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:4J5S7XSRDIF2N3AZ45FT3SQA4G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quadrilatero: A RISC-V programmable matrix coprocessor for low-power edge applications","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.AR","authors_text":"Angelo Garofalo, Danilo Cammarata, David Atienza, Luca Benini, Marco Bertuletti, Matteo Perotti, Pasquale Davide Schiavone","submitted_at":"2025-04-10T08:56:03Z","abstract_excerpt":"The rapid growth of AI-based Internet-of-Things applications increased the demand for high-performance edge processing engines on a low-power budget and tight area constraints. As a consequence, vector processor architectures, traditionally designed for high-performance computing (HPC), made their way into edge devices, promising high utilization of floating-point units (FPUs) and low power consumption. However, vector processors can only exploit a single dimension of parallelism, leading to expensive accesses to the vector register file (VRF) when performing matrix computations, which are per"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.07565","kind":"arxiv","version":1},"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/2504.07565/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":"2026-07-05T10:47:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QMHQmblmiMTGakX+f9SY4IG1gshlQC5x5W9xsHYiWGXSisCu8TICZ4ZcoKui9SkAi0KflLsgK6tmMMxzcelwBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T06:30:48.838774Z"},"content_sha256":"36ce3f54e91e81600d97f29ad3a63b2436e9870b2e744d7f8a9b1db2e5f0add4","schema_version":"1.0","event_id":"sha256:36ce3f54e91e81600d97f29ad3a63b2436e9870b2e744d7f8a9b1db2e5f0add4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4J5S7XSRDIF2N3AZ45FT3SQA4G/bundle.json","state_url":"https://pith.science/pith/4J5S7XSRDIF2N3AZ45FT3SQA4G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4J5S7XSRDIF2N3AZ45FT3SQA4G/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":"2026-08-06T06:30:48Z","links":{"resolver":"https://pith.science/pith/4J5S7XSRDIF2N3AZ45FT3SQA4G","bundle":"https://pith.science/pith/4J5S7XSRDIF2N3AZ45FT3SQA4G/bundle.json","state":"https://pith.science/pith/4J5S7XSRDIF2N3AZ45FT3SQA4G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4J5S7XSRDIF2N3AZ45FT3SQA4G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:4J5S7XSRDIF2N3AZ45FT3SQA4G","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":"20cb34e135fe394e4550cbb189ca131639fa8d85a3a201b3cf70d256f4d76a0b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.AR","submitted_at":"2025-04-10T08:56:03Z","title_canon_sha256":"dc7a0dd3b07ef5bfa1ee8479636b0cab3d8c6221a72b9504105ad009ad135d38"},"schema_version":"1.0","source":{"id":"2504.07565","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.07565","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"arxiv_version","alias_value":"2504.07565v1","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.07565","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"pith_short_12","alias_value":"4J5S7XSRDIF2","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"pith_short_16","alias_value":"4J5S7XSRDIF2N3AZ","created_at":"2026-07-05T10:47:10Z"},{"alias_kind":"pith_short_8","alias_value":"4J5S7XSR","created_at":"2026-07-05T10:47:10Z"}],"graph_snapshots":[{"event_id":"sha256:36ce3f54e91e81600d97f29ad3a63b2436e9870b2e744d7f8a9b1db2e5f0add4","target":"graph","created_at":"2026-07-05T10:47:10Z","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/2504.07565/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The rapid growth of AI-based Internet-of-Things applications increased the demand for high-performance edge processing engines on a low-power budget and tight area constraints. As a consequence, vector processor architectures, traditionally designed for high-performance computing (HPC), made their way into edge devices, promising high utilization of floating-point units (FPUs) and low power consumption. However, vector processors can only exploit a single dimension of parallelism, leading to expensive accesses to the vector register file (VRF) when performing matrix computations, which are per","authors_text":"Angelo Garofalo, Danilo Cammarata, David Atienza, Luca Benini, Marco Bertuletti, Matteo Perotti, Pasquale Davide Schiavone","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.AR","submitted_at":"2025-04-10T08:56:03Z","title":"Quadrilatero: A RISC-V programmable matrix coprocessor for low-power edge applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.07565","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":"sha256:474ca621ca81b31e5bb77075beddca710c1c3d88c8a00054d0957bbf8acf386f","target":"record","created_at":"2026-07-05T10:47:10Z","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":"20cb34e135fe394e4550cbb189ca131639fa8d85a3a201b3cf70d256f4d76a0b","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.AR","submitted_at":"2025-04-10T08:56:03Z","title_canon_sha256":"dc7a0dd3b07ef5bfa1ee8479636b0cab3d8c6221a72b9504105ad009ad135d38"},"schema_version":"1.0","source":{"id":"2504.07565","kind":"arxiv","version":1}},"canonical_sha256":"e27b2fde511a0ba6ec19e74b3dca00e1a6c2e7fa7726009ca75b2c5286ae7cbe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e27b2fde511a0ba6ec19e74b3dca00e1a6c2e7fa7726009ca75b2c5286ae7cbe","first_computed_at":"2026-07-05T10:47:10.893242Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:47:10.893242Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gMvnxY2B8gIwnuno940FJ3RjKGwP/Evdyd5R04YhXKjHF3f6Wfs6Wil9vvxzeaKjVTftJe8Ky7x6+/v1SR24Cg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:47:10.893713Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.07565","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:474ca621ca81b31e5bb77075beddca710c1c3d88c8a00054d0957bbf8acf386f","sha256:36ce3f54e91e81600d97f29ad3a63b2436e9870b2e744d7f8a9b1db2e5f0add4"],"state_sha256":"bda462d8bb2039f872c274883c8ee6604e5d66d9c59b6c15fa793ec29f1ed5d5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JAvDVXqCCIm0reOugDdR1GI96Hb7E/etsEekdr7XSx/2xQFKIYCmALCLw0k+P+bqslJQIjUe+jYx6nl1bRIiCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T06:30:48.844817Z","bundle_sha256":"262c17ce22cda6ae74c194adab8e7fb9c3477f6806e20a399ff691aa46532b4b"}}