Runes (Bitcoin)
Runes is a fungible token protocol on Bitcoin, designed as a more efficient alternative to BRC-20. It uses Bitcoin's native UTXO model to track token balances directly, without requiring inscriptions or off-chain indexers to interpret JSON.
✦ Key Insight
Runes activated alongside the 2024 Bitcoin halving and quickly captured significant trading volume. For traders, it created another Bitcoin-native asset class with different fee dynamics and wallet support than BRC-20 — and a more efficient design that became the de-facto standard.
✕ Common Misconceptions
Spending a UTXO containing runes from a non-rune-aware wallet, accidentally treating them as ordinary sats.
Mixing runes and ordinary BTC in a wallet without UTXO control.
Ignoring Bitcoin fee spikes during high rune activity.
Detailed Explanation
How It Works: A "rune" is etched into the Bitcoin chain with a unique identifier, supply, and divisibility. Token balances live inside specific UTXOs, marked via the OP_RETURN field. Transfers happen through standard Bitcoin transactions that split or combine those UTXOs, with rune-aware wallets interpreting the balances.
FAQs:
Is Runes a replacement for BRC-20? Many traders treat it that way; BRC-20 still has its own market.
Do Runes inflate Bitcoin's data footprint? They use existing block space; impact depends on demand.
In Practice
Dig Deeper
BRC-20
BRC-20 is an experimental token standard for issuing fungible tokens on the Bitcoin blockchain using the Ordinals protocol. It inscribes JSON-formatted text into individual satoshis to define token deployments, mints, and transfers.
Bitcoin
Bitcoin is a decentralised digital currency and blockchain network introduced in 2009. Its native asset is bitcoin, commonly represented by the ticker BTC. Bitcoin allows users to transfer value directly across its network without requiring a central bank or payment company to approve each transaction.