◆ Use cases

Add an external checkpoint to retained records.

Base-backed digest checkpoints for your ideas, documents, and creative work. Retain the source and receipt so the exact digest can be compared later.

◦ By vertical

Record a pre-publication digest

Document an internal version timeline

Compare retained move-in records

Checkpoint incident documentation bytes

Track retained agreement versions

Checkpoint a retained deliverable version

Base

Current write chain

Successful L2 receipt observed

$0.16/ea

Per notarization

One-time pack rate, in volume

Hash-only

Digest-only calldata

Browser file flow keeps the file body local

Direct

Verification

Requires retained data and suitable Base access

Any document, file, or data. If it can be hashed, its digest can be notarized from an authenticated account.