{^} The Proof Widget — Complimentary Embeddable Seal & Verify Widget

A small, complimentary widget you can paste into any website. In the visitor’s own browser, with nothing uploaded, it seals a statement or file (SHA-256 fingerprint plus character count) and later checks content against that seal: VERIFIED, or BROKEN SEAL if even one character changed.

Complimentary to use, copy and embed for any business. The one condition is that the attribution line at the end of every seal stays legible and unaltered.

What’s included

• The widget as a single file with no dependencies, plus split script and style versions.
• A live demo page with a tamper walkthrough ($48,500 → $48,900 shows BROKEN SEAL).
• Embed & Install Guide (PDF plus editable Markdown), the license and cover art.
• Three ways to install (paste-in block, one-line iframe or separate assets); seals from one verify in any other.

Who it’s for

Website owners, firms and developers who want visitors to be able to check that a statement or file hasn’t changed.

Good to know

• A seal shows the content is unchanged since sealing. It does not prove the content is true or who wrote it.
• Its timestamp is the device’s local clock, labeled LOCAL, not attested.
• Needs an HTTPS page, localhost or a local file in a current browser (it uses the WebCrypto API).

Complimentary instant download at checkout.
Protocol One — Standards Office, 3707 E Southern Ave, Suite 1023, Mesa, AZ 85206 · protocolonestandardsoffice@gmail.com