# Colophon

> Colophon reconstructs what a wallet actually held in tokenized stocks on any date, on Solana (Token-2022 ScaledUiAmount) and Robinhood Chain (ERC-8056 uiMultiplier), and lets anyone re-check the result offline.

Colophon is read-only. It never accepts keys, seeds or signatures. Every number carries an evidence label: MEASURED, REPLAYED, SYNTHETIC, OFFCHAIN, UNKNOWN.

## Public API (CORS open, JSON)
- POST https://colophon-fair.vercel.app/api/statement  body {"wallet","chain":"solana"|"robinhood","asOfTs"}
- GET https://colophon-fair.vercel.app/api/v1/multiplier?chain=&mint=&at=
- GET https://colophon-fair.vercel.app/api/v1/timeline?chain=solana&mint=
- GET https://colophon-fair.vercel.app/api/v1/verify?bundle=<base64url bundle JSON>  (or POST the bundle)
- GET https://colophon-fair.vercel.app/api/v1/board
- GET https://colophon-fair.vercel.app/api/v1/watch
- GET https://colophon-fair.vercel.app/api/actions/statement  (Solana Action / Blink)

## Spec
- OpenAPI: https://colophon-fair.vercel.app/openapi.json

## Pages
- https://colophon-fair.vercel.app/try  open a real holder's statement with no wallet
- https://colophon-fair.vercel.app/statement  paste or connect a wallet, pick chain and date
- https://colophon-fair.vercel.app/proof  claims ledger, in-browser verifier, tamper results