01 / Problem
Bitcoin builders and enthusiasts often reference block height, but checking it usually means opening an explorer built for technical lookup, not quick daily use.
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Bitcoin Time
A blockchain clock that displays the current Bitcoin block height and time using the Whatsonchain API.
Nuxt 4Whatsonchain APIPWABitcoin
Case Study
From rough idea to useful product
02 / Build
I built a lightweight Nuxt PWA that pulls live Bitcoin block data from Whatsonchain and presents block height beside conventional time in a clean, glanceable interface.
03 / Result
The app turns block time into something you can check as easily as the clock, making a blockchain-native concept feel practical and accessible.
About this project
Bitcoin Time is a real-time blockchain clock that displays the current Bitcoin block height alongside conventional time. The idea came from the Bitcoin community's habit of referencing "block time" — the block number when something happened — as a timestamp that's immutable and universally verifiable.
The app polls the Whatsonchain API to fetch the latest Bitcoin block data, then renders it in a clean, glanceable interface. It's built as a Progressive Web App so you can install it on your phone's home screen and check block height the same way you'd check the time.
The tech stack is Nuxt 4 with server-side rendering for fast initial loads, the Whatsonchain REST API for blockchain data, and PWA support via a service worker for offline caching and installability. The design keeps it minimal — the block height is the hero element, with conventional time as a secondary reference.
Have a specific build in mind?
Send the problem, timeline, and budget range.