{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:FI7GUSWQVLHRF6V7CYU44CHS7Q","short_pith_number":"pith:FI7GUSWQ","canonical_record":{"source":{"id":"2602.22352","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2026-02-25T19:18:22Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"fa49e025f3c96d4f382278e20d1693261558e5a60801a47332dfdb076da0fea2","abstract_canon_sha256":"02dca1bc53e24726894dc3297aa1364a28420ead417a1544202b821e1cbc7a01"},"schema_version":"1.0"},"canonical_sha256":"2a3e6a4ad0aacf12fabf1629ce08f2fc1ad2816c3b534b8112a20ac6cd48e1de","source":{"kind":"arxiv","id":"2602.22352","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.22352","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"arxiv_version","alias_value":"2602.22352v2","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.22352","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"pith_short_12","alias_value":"FI7GUSWQVLHR","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"pith_short_16","alias_value":"FI7GUSWQVLHRF6V7","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"pith_short_8","alias_value":"FI7GUSWQ","created_at":"2026-06-10T01:10:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:FI7GUSWQVLHRF6V7CYU44CHS7Q","target":"record","payload":{"canonical_record":{"source":{"id":"2602.22352","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2026-02-25T19:18:22Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"fa49e025f3c96d4f382278e20d1693261558e5a60801a47332dfdb076da0fea2","abstract_canon_sha256":"02dca1bc53e24726894dc3297aa1364a28420ead417a1544202b821e1cbc7a01"},"schema_version":"1.0"},"canonical_sha256":"2a3e6a4ad0aacf12fabf1629ce08f2fc1ad2816c3b534b8112a20ac6cd48e1de","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:10:59.772364Z","signature_b64":"vW/oecCwCaHBR8bVS76FlNLGiosRgx6/NlR+8mBBDmIh7zP2h3u9MXuAzZQQlLc49wtfRJ4kq/NLkr8X711CDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a3e6a4ad0aacf12fabf1629ce08f2fc1ad2816c3b534b8112a20ac6cd48e1de","last_reissued_at":"2026-06-10T01:10:59.771332Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:10:59.771332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.22352","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-10T01:10:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l+reUhZ78hC3htRgX+UIkrqlZY587ULgSi8+mIWIIg671J6Q/QCFl2m9ROdnorlw+Hme+RZ0waKueiLf6datDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T01:29:14.883561Z"},"content_sha256":"0082dd29f6f4a5e921bed772d22dc11c1e4eb7a1fb11e8213efa7e2892a074d5","schema_version":"1.0","event_id":"sha256:0082dd29f6f4a5e921bed772d22dc11c1e4eb7a1fb11e8213efa7e2892a074d5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:FI7GUSWQVLHRF6V7CYU44CHS7Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"GRAU: Generic Reconfigurable Activation Unit Design for Neural Network Hardware Accelerators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.AR","authors_text":"Akash Kumar, Salim Ullah, Yuhao Liu","submitted_at":"2026-02-25T19:18:22Z","abstract_excerpt":"With the continuous growth of neural network scales, low-precision quantization is widely used in edge accelerators. Classic multi-threshold activation hardware requires 2^n thresholds for $n$-bit outputs, causing a rapid increase in hardware cost as precision increases. We propose a reconfigurable activation hardware, GRAU, based on piecewise linear fitting, where the segment slopes are approximated by powers of two. Our design requires only basic comparators and 1-bit right shifters, supporting mixed-precision quantization and nonlinear functions such as SiLU. Compared with multi-threshold a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.22352","kind":"arxiv","version":2},"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/2602.22352/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":"2026-06-10T01:10:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FrdKNPyIAIM0zeua3oGqc+DRITH+U7wdq6lHuM/KIgkO+LSQzQWrAXyWHR6AsxmL4ppwqQHXo+z/X0UaIlG6CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T01:29:14.883984Z"},"content_sha256":"1e82c33718bedbc9defd28cacad67025c137f81c105f9ea70682adfcf0140195","schema_version":"1.0","event_id":"sha256:1e82c33718bedbc9defd28cacad67025c137f81c105f9ea70682adfcf0140195"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FI7GUSWQVLHRF6V7CYU44CHS7Q/bundle.json","state_url":"https://pith.science/pith/FI7GUSWQVLHRF6V7CYU44CHS7Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FI7GUSWQVLHRF6V7CYU44CHS7Q/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":"2026-06-11T01:29:14Z","links":{"resolver":"https://pith.science/pith/FI7GUSWQVLHRF6V7CYU44CHS7Q","bundle":"https://pith.science/pith/FI7GUSWQVLHRF6V7CYU44CHS7Q/bundle.json","state":"https://pith.science/pith/FI7GUSWQVLHRF6V7CYU44CHS7Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FI7GUSWQVLHRF6V7CYU44CHS7Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FI7GUSWQVLHRF6V7CYU44CHS7Q","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":"02dca1bc53e24726894dc3297aa1364a28420ead417a1544202b821e1cbc7a01","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2026-02-25T19:18:22Z","title_canon_sha256":"fa49e025f3c96d4f382278e20d1693261558e5a60801a47332dfdb076da0fea2"},"schema_version":"1.0","source":{"id":"2602.22352","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.22352","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"arxiv_version","alias_value":"2602.22352v2","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.22352","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"pith_short_12","alias_value":"FI7GUSWQVLHR","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"pith_short_16","alias_value":"FI7GUSWQVLHRF6V7","created_at":"2026-06-10T01:10:59Z"},{"alias_kind":"pith_short_8","alias_value":"FI7GUSWQ","created_at":"2026-06-10T01:10:59Z"}],"graph_snapshots":[{"event_id":"sha256:1e82c33718bedbc9defd28cacad67025c137f81c105f9ea70682adfcf0140195","target":"graph","created_at":"2026-06-10T01:10:59Z","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/2602.22352/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"With the continuous growth of neural network scales, low-precision quantization is widely used in edge accelerators. Classic multi-threshold activation hardware requires 2^n thresholds for $n$-bit outputs, causing a rapid increase in hardware cost as precision increases. We propose a reconfigurable activation hardware, GRAU, based on piecewise linear fitting, where the segment slopes are approximated by powers of two. Our design requires only basic comparators and 1-bit right shifters, supporting mixed-precision quantization and nonlinear functions such as SiLU. Compared with multi-threshold a","authors_text":"Akash Kumar, Salim Ullah, Yuhao Liu","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2026-02-25T19:18:22Z","title":"GRAU: Generic Reconfigurable Activation Unit Design for Neural Network Hardware Accelerators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.22352","kind":"arxiv","version":2},"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":"sha256:0082dd29f6f4a5e921bed772d22dc11c1e4eb7a1fb11e8213efa7e2892a074d5","target":"record","created_at":"2026-06-10T01:10:59Z","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":"02dca1bc53e24726894dc3297aa1364a28420ead417a1544202b821e1cbc7a01","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2026-02-25T19:18:22Z","title_canon_sha256":"fa49e025f3c96d4f382278e20d1693261558e5a60801a47332dfdb076da0fea2"},"schema_version":"1.0","source":{"id":"2602.22352","kind":"arxiv","version":2}},"canonical_sha256":"2a3e6a4ad0aacf12fabf1629ce08f2fc1ad2816c3b534b8112a20ac6cd48e1de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a3e6a4ad0aacf12fabf1629ce08f2fc1ad2816c3b534b8112a20ac6cd48e1de","first_computed_at":"2026-06-10T01:10:59.771332Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-10T01:10:59.771332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vW/oecCwCaHBR8bVS76FlNLGiosRgx6/NlR+8mBBDmIh7zP2h3u9MXuAzZQQlLc49wtfRJ4kq/NLkr8X711CDg==","signature_status":"signed_v1","signed_at":"2026-06-10T01:10:59.772364Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.22352","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0082dd29f6f4a5e921bed772d22dc11c1e4eb7a1fb11e8213efa7e2892a074d5","sha256:1e82c33718bedbc9defd28cacad67025c137f81c105f9ea70682adfcf0140195"],"state_sha256":"5f1932edb77be19fafb364641fb4a9349068b6ed3f92eed4c150369666bb40ba"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HgCZ0O8SkozaRS3UcRp1A7aGMkYGlSNOJ/Pu7UbLTOB2I3sozt+0LyrPxZuZxLdwwXe/uEVmzC8BiwZNhKdSAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T01:29:14.886776Z","bundle_sha256":"7e08f2fc4408754de2554d62248d3034f251e6e432ff84f7e887adce99d09553"}}