BIS study reveals Bitcoin onchain transfer estimates can vary by a factor of six

The numbers the crypto industry relies on to measure economic activity might be wildly off. A working paper from the Bank for International Settlements found that Bitcoin transaction values can differ by a factor of six depending on how one handles a single technical variable, raising uncomfortable questions about the data infrastructure underpinning a multi-trillion-dollar market. The study, titled “Hidden by complexity? Measuring stablecoin, crypto and decentralised finance ecosystems,” examined roughly 100 billion blockchain records across Bitcoin, Ethereum, and Tron. Its conclusion is blunt: onchain indicators should be treated as rough approximations, not the precise economic metrics many participants assume them to be. The UTXO problem and why Bitcoin numbers lie At the heart of the Bitcoin measurement issue is something called unspent transaction outputs, or UTXOs. Think of them like getting change back from a cash purchase. When you spend 0.5 BTC from a wallet holding 1 BTC, the entire 1 BTC moves onchain, with 0.5 BTC returning to you as “change.” Whether you count that change as economic activity or not fundamentally alters the picture. The BIS researchers found that diff...