data.feedplumb.com/check

Client-Side WebCrypto SHA-256 & `feedplumb-proof/v1` Verifier zero-credit public verification

0 credits · Browser-native

Hash any file or JSON payload locally in your browser using WebCrypto SHA-256 (bytes never leave your device) and verify feedplumb-proof/v1 Merkle proof and receipt bundles against /verify/v1/*.

1. Browser-Native WebCrypto SHA-256 Hasher

Select a local document or JSON file to hash in-browser:

Or paste JSON / text payload to compute SHA-256:

Select a file or paste text above to compute its 32-byte SHA-256 digest locally.

2. `feedplumb-proof/v1` Merkle & Receipt Bundle Verifier

Paste a feedplumb-proof/v1 JSON bundle:

Ready to verify feedplumb-proof/v1 receipt bundle.

1. Browser-Native WebCrypto SHA-256 Hasher

2. feedplumb-proof/v1 Merkle & Receipt Bundle Verifier

2. `feedplumb-proof/v1` Merkle & Receipt Bundle Verifier