The method

Your approved image is the baseline

Every view starts from an approved source: the image of the design as you approved it. Every render of the view is compared with it, and every correction is made against it, whichever version a request starts from.

One change, named; the rest kept

A request names one change, the element it applies to and the result, and lists what must stay: Keep exactly. Ply then has less to guess, and Vel has a clear thing to check. The elements you keep are written on the receipt.

A second system checks the first

Ply makes every change. Vel only reviews: it compares the result with the approved source and your request, and it never edits the image. On FIX, Ply corrects the render once against the approved source, at no extra cost, and Vel reviews again.

Uncertain is said out loud

When Vel cannot decide, the render is VERIFICATION UNCERTAIN, and it is not charged. It never becomes a pass by itself. You can try another version, or accept the result as it is: ACCEPTED WITH FINDINGS, always written out in full and never shown in the green of VEL VERIFIED.

A receipt, not a certificate

Every completed render gets a signed Render Receipt: what was asked, what was kept, what Vel found and which file was delivered. The signature shows that the record is unchanged since Plyvel issued it. It does not show that the design is right.

This receipt records Plyvel’s visual checks. It is not structural, engineering, building-code, construction, or dimensional certification.

A person decides, by name

Approving is your decision to keep a result. It is recorded with who approved it and when, “Approved by you · date”, beside the receipt. It is never a state and never green, and it never changes what Vel found.

Where it runs

The Plyvel app runs in your browser. Its API and its file storage run on Cloudflare, its database is Supabase in Frankfurt, Germany, and its email goes through Resend in Ireland. I build and run Plyvel from Iraq.

Ply’s render engine and Vel’s review are still being finished. Until they land, a render in the beta returns your source image unchanged, and Vel is a stand-in reviewer that answers from a fixed script: its decisions there say nothing about the image. Credits there are test credits.