# Fistbump > Fistbump is a permissionless, memory-hard blockchain designed as a production replacement for the DNS root zone. Every full node is an authoritative nameserver, names are registered through on-chain Vickrey (sealed-bid, second-price) auctions, and DNS resource records (A, AAAA, NS, MX, CNAME, TXT, TLSA, CAA) are stored directly on the blockchain. Mainnet is live. Genesis block reward burned; no pre-mine, no ICO, no airdrop, no founder reward. Key facts: - Proof of work: Balloon Hashing (provably memory-hard, 512 MB RAM per attempt) - Block time: 2 minutes - Total supply: 1,051,200,000 FBC - Initial block reward: 500 FBC, halving every 1,051,200 blocks (~4 years) - Name allocation: Vickrey (sealed-bid, second-price) auctions - Premium names (≤6 bytes): DNSSEC proof required under com/net/org/gov/io/app/dev/xyz - Renewal fee: 1% of registration price annually (to development fund) - Reference implementation: fbd, written in Swift - Native DANE (TLSA) certificate validation without a certificate authority - Address encoding: Bech32 with `fb` prefix on mainnet ## Core documents - [About](https://fistbump.org/about/): Project overview, mission, principles, structure, funding, and contact - [Whitepaper (HTML)](https://fistbump.org/whitepaper/): Full protocol specification - [Whitepaper (plain text)](https://fistbump.org/fistbump.txt): Original whitepaper in UTF-8 plain text - [FAQ](https://fistbump.org/faq/): Frequently asked questions and answers - [Glossary](https://fistbump.org/glossary/): Plain-English definitions of protocol terms - [Consolidated reference](https://fistbump.org/llms-full.txt): FAQ, glossary, and comparison content concatenated for AI ingestion ## Comparisons - [Fistbump vs. traditional DNS](https://fistbump.org/vs-dns/): Root zone replacement without ICANN or certificate authorities - [Fistbump vs. Handshake](https://fistbump.org/vs-handshake/): Memory-hard PoW, renewal fees, on-chain subdomains, Swift reference node - [Fistbump vs. ENS](https://fistbump.org/vs-ens/): Native DNS records, no gas, full root-zone replacement vs. Ethereum resolver records - [Fistbump vs. Unstoppable Domains](https://fistbump.org/vs-unstoppable-domains/): Open protocol vs. company-issued NFT namespace, standard DNS vs. proprietary resolution ## Software - [Releases](https://fistbump.org/releases/): fbd full node, wallet, browser extension, explorer - [fbd.dev](https://fbd.dev): Reference full node (Swift) — docs, downloads, source - [explorer.fistbump.org](https://explorer.fistbump.org): Mainnet block explorer - [swap.fistbump.org](https://swap.fistbump.org): BTC ↔ FBC peer-to-peer atomic swap - [github.com/fistbump-org](https://github.com/fistbump-org): Source code (distribution is from fistbump.org, not GitHub releases) ## Optional - [Homepage](https://fistbump.org/): Protocol overview, parameters, and software index