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Lorca Labs
Live demo
Disclosure

Scrub Residual Sealer

The redaction you can prove, carried in pixels — fail-closed to the wrong key.

Try live Scrub Residual Sealer Contact

The problem

Redactions on a screen can be faked or reversed. A residual sealer records the original→scrubbed transition with cryptographic hashes inside a carrier image, so a recovered seal proves what was removed and fails closed if the wrong key is used.

What it does

01

Scrubs PII from original text via ranges or a scrubbed text, computes pre-image and post hashes.

02

Returns a residual ID, scrubbed text, hashes, carrier report, and the sealed carrier.

03

Extracts the residual with key verification; wrong key fails closed.

04

Lists residuals (metadata only, no cleartext) and fetches a record by ID.

Who it’s for

  • Compliance teams needing redaction evidence
  • Reviewers verifying recovered documents against redaction records
  • Operators who need key-bound, fail-closed extraction of residuals

In context

Pairs with Redaction Vault (source redaction) and Stego Audit Carrier (audit-event sealing) on the same steganographic core.

Try it live in the studio

A no-signup, in-browser experiment against an isolated demo host. Load sample data, run the flow, and see the result — nothing is stored.

Try live Contact