I’m currently juggling a few personal blockchain projects, and my latest is a lightweight, browser-based system built with PHP and SQLite. I’m particularly drawn to SQLite for its simplicity—no server required, just a flat file database that keeps everything lean and portable.
This blockchain is secured with a nonce and uses hash(sha-256) to validate each block. Just like Bitcoin’s genesis block on January 3rd, 2009, mine kicks off with Block 0 anchoring the chain.
Up to now, I’ve experimented with JSON and MySQL storage formats, but this SQLite-based implementation offers an elegant and efficient approach for decentralized systems running directly in the browser.
The following are a couple screen shots:
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