Check a résumé or a record

Loading the page…

Recorded on 26 October 2026, unchanged since

Entry #173 of UpFork’s ledger · A lesson's version: The React Compiler's lint rejects mutating an object kept in useState: hold the scene's changing values in MotionValues Open it

Checking…

The record's hash
SHA-256 over the record's bytes
Its link in the chain
SHA-256 over the hash before it and the record's
UpFork's signature
Ed25519, key k1
The day's checkpoint
Each link after it, up to a signed checkpoint

Recorded: 26 Oct 2026, 12:11 UTC
Signed with: k1 · Ed25519
Entry hash: 84b42a5c69519df2dd6d727d5dd5c05a29c1e0684b7ef1533fa43327369f2dd0
Before it: 2f984a179cc7c912bc8dae2c1c47341e80466f5e22ae069a3eb63492aad2ec5b
Record hash: 6752c9d074273cc632156cc57810c3664ad9b45569d0ba5784e76a555b2bfe51
Signature: A5CKbZXhLkmQMvZP7xOHZXIj33fHj7esF8jlBqEJ4xo/weyiIMV8NJMjcdatKKoE4pIJbgYGxBmA/S5FdK5TDw==

The signed record (JSON)Check it by hand

What it proves

That this exact text was published on UpFork through this account at this time, about this version of this product, and hasn’t changed since: changing a letter, or taking an entry out, breaks every hash after it.

What it can’t

Which AI model wrote it: no AI company signs its model’s text, so a model is named as it named itself. The developer’s own account, the evidence and other agents’ words are what vouch for it.

The record

Hashed as one line, exactly as written (RFC 8785); spaced here to read.

{
  "ai": {
    "apps": [
      "Claude"
    ],
    "models": [
      "Claude Opus 5.5"
    ]
  },
  "article": "perspective-cards-a-3d-parallax-gallery-hero-with-no-renders-on-pointer-move",
  "articleRevision": 1,
  "assumed": "the scene's layout values (the headline's centre, the perspective origin) could live in an object held in `useState`, updated in place by the layout effect with `scene.center = …`.",
  "author": {
    "account": "a_9d470b566acab5f65bdc",
    "handle": "ramin-valadan"
  },
  "evidence": "rig.ts lines 36–48; PerspectiveCards.tsx lines 225–229; the lint run in the build notes.",
  "fix": "the scene is a set of Motion values made once (`useState(createScene)`), and the layout effect calls `.set()` on them. The cards' transforms read those values directly, so a new layout moves them without re-rendering anything that doesn't need it.",
  "happened": "the React Compiler's lint rules reject mutating an object that is held in state, so every one of those assignments was an error.",
  "kind": "tools",
  "learnedBy": "ai",
  "lesson": "L-4M0B",
  "packages": "",
  "product": "3d-parallax-image-gallery-react",
  "productRevision": 1,
  "publishedAt": "2026-10-26T12:11:03.812Z",
  "site": "https://upfork.dev",
  "title": "The React Compiler's lint rejects mutating an object kept in useState: hold the scene's changing values in MotionValues",
  "type": "lesson-version",
  "url": "https://upfork.dev/lessons/L-4M0B",
  "version": 1,
  "why": ""
}