Bitcoin network

Updated

What it is

The Bitcoin network is a decentralized, peer-to-peer blockchain launched on January 3, 2009 by the pseudonymous Satoshi Nakamoto, secured by a proof-of-work consensus mechanism in which miners compete to validate transactions and add new blocks. New bitcoin issuance halves roughly every four years (most recently in April 2024, cutting the block reward to 3.125 BTC), and network security is measured by aggregate mining hashrate rather than price. It is distinct from BTC, the asset that the network issues and secures.

Why it matters lately

Bitcoin's network hashrate hit multiple all-time highs above 1 zettahash per second (1,000 exahashes/s) in January 2026, before severe U.S. winter storms forced Texas miners offline and caused the largest drawdown (about 12 percent) since China's 2021 mining ban. Analysts project global hashrate could reach roughly 1,727 exahashes per second by the end of 2026, up from about 1,056 EH/s at the close of 2025, driven by ASIC efficiency gains rather than a protocol upgrade.

Asymmetric Analytics view

Inference (AA): Bitcoin network hashrate and miner-capacity trends are a proxy for underlying network security and miner economics that AA tracks separately from BTC price action.