◆ 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

Public fingerprint record

We observe a successful L2 receipt, not Ethereum settlement

SHA-256

Compare the exact file

An exact match requires all 64 fingerprint characters

Keep both

Original file and receipt

Independent checking also needs suitable Base history access

Free

Check a file

No account or credit needed to check

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