github.com/OpenUdon/evidence is the small shared trust/evidence primitive module for OpenUdon projects. It is intentionally product-neutral: packages here define reusable record shapes and deterministic helpers, not product workflows, runtime execution, policy engines, or storage.

License: Apache-2.0.

• artifact: deterministic artifact records, safe relative path validation, manifests, manifest digests, and product label options for preserving domain-specific validation wording.
• digest: canonical digest records and SHA-256 helpers.
• diagnostic: product-neutral diagnostic records, severity normalization, and deterministic diagnostic sorting.
• redact: product-neutral redaction helpers for secret-like strings and JSON/YAML-like documents, including quoted and unquoted assignments while preserving authentication scheme names such as Bearer and Basic.
• approval: neutral approval evidence records, approver normalization, requirement evaluation, validation diagnostics, expiry-aware validation, and deterministic approval record digests.

• Redaction covers common secret assignment forms such as password=value and token-like provider credentials while allowing products to add stricter policy patterns.
• Approval validation ignores approvers without explicit timestamps, defaults the validation clock when callers omit one, and uses collision-free sorting keys for deterministic digests.
• Artifact path validation accepts product labels for root, path, and input names so downstream CLIs can keep stable error messages while sharing one implementation.

Ramen and OpenUdon may use these primitives behind their own public wire formats, such as ramen.approval.v1, ramen.policy.v1, openudon.approval.v1, handoff package digests, run evidence, and product diagnostics. Those product-specific schemas, commands, state models, package layouts, governance rules, executor boundaries, and trusted-runner semantics remain documented and implemented in their owning modules.

Do not add executor interfaces, CLI plumbing, run orchestration, policy engines, Ramen reconciliation behavior, OpenUdon authoring behavior, or product-specific approval states to this module.

go test ./...
go vet ./...
git diff --check