Structural Analysis
Upload Bitcoin Core block files, paste raw transaction hex, or provide a JSON fixture for full structural breakdown.
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Enter a transaction ID or block height to fetch and analyze from mempool.space
How it works
Bitcoin is shared money records
Bitcoin is a digital currency that works without any bank or company in charge. Instead, thousands of computers around the world keep a shared record of every transaction ever made.
Those records are grouped into blocks
This shared record is called a blockchain, a giant list of pages (called blocks), each containing hundreds of transactions. Think of it like a public accounting book that anyone can read but nobody can alter.
Transactions wait in the mempool
When you send Bitcoin, your transaction goes into a waiting room called the mempool. Miners sweep through this pool and bundle hundreds of waiting transactions together to form a new block.
Miners secure blocks through proof-of-work
Miners race against each other to solve a complex mathematical puzzle to lock in that newly bundled block. The winner gets the block reward, and the bundle is permanently added to the blockchain.
Lens opens the block to explain it
Each block contains a header, transactions, inputs, outputs, scripts, and fees. But this data is stored as raw bytes, making it completely unreadable to humans. That's where Lens comes in.
Ready to see what's inside a real block?
Upload your own Bitcoin Core files or paste raw transaction data.