A read-only web prototype that explains the difference between raw token quantities and multiplier-adjusted display units. I built the Node server, browser interface, exact decimal calculations and validation suite.
The app retrieves public issuer data for AAPLx, SPYx, NVDAx and TSLAx, displays source timestamps and event history, and exports a JSON inspection record. Bounded requests, caching and input validation keep the data flow predictable.
Validation: nine tests passed, live API checks passed for all four assets, and browser checks covered switching assets, integer base-unit inputs and invalid-input rejection.
Status: submitted to Stocklana on September 12, 2026. No award or organizer endorsement is claimed. The demo runs locally; issuer data is not independently verified on-chain state. No wallet, trading or signing functionality.