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Evidence API

Assets, timestamps, packages and reports share an explicit delivery contract.

ComplianceClient exposes createEvidenceAsset/getEvidenceAsset/listEvidenceAssets, verifyEvidencePublic, issueTimestamp/verifyTimestamp/waitForTimestampVerified, buildEvidencePackage/listEvidencePackages and createReport/downloadReport/listReports. Public verification supports anonymous reads; optional credentials retain audit context. Paid writes require a valid enabled SKU and funding/execution contract. Missing provider confirmation or final usage is pending reconciliation, not proof of a free successful operation.