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SHA3 evidence integrity

FactoryWager AuditConcept — sibling SSOT (not BunToken / bun.com).

Field	Value
id	sha3-integrity
kind	AuditConcept
publishedAt	2026-07-21
since	1.3.13
docs	docs/audit/concepts/sha3-integrity.md

Description

FactoryWager AuditFinding evidence blobs are fingerprinted with SHA3-256 via Bun.CryptoHasher(‘sha3-256’). SSOT catalog verify requires sha3-256; parse still accepts inbound sha256 for audit:migrate:sha3. Wire shape is evidence.algorithm + evidence.digest (Phase 2). This is tamper-detection only — keyed authentication (HMAC/signing) is a separate, unimplemented lane.

Bun shipped native SHA-3 support in v1.3.13 (WebCrypto SHA3-* + node:crypto / CryptoHasher). See relatedDocs SHA3-256 for the ship note.

References

• https://bun.com/blog/bun-v1.3.13#sha3-support-in-webcrypto-and-node-crypto
• lib/audit/audit-finding.ts — hashFile / verifyEvidenceHash

Related (audit SSOT)

• sample-fiber-demo-2026-07-21
• jacobian-nullspace
• nagata-map

Related docs (BunToken / curated — opaque)

• SHA3-256

Suggest

bun tools/bun-doc-refs.ts suggest "SHA3 evidence integrity"
bun tools/bun-doc-refs.ts suggest --audit "sha3-integrity"
bun tools/bun-doc-refs.ts suggest --audit --json "sha3-integrity"

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