FCN · settled L0 = BFT

Frostcoin Network

FCN is the public brand for Frost materials on finux.tech. Production Layer 0 is CometBFT BFT with 300-second blocks — that choice is locked. Cryptonite-inspired account-tree / pruning work is a later research lane, documented only; Frost will not fork Cryptonite (XCN) PoW for L0.

✓ Production L0 — locked

  • CometBFT + Cosmos SDK (or equivalent BFT)
  • Block interval 300 seconds
  • Open ledger transparency (not Zcash / not XMR privacy as security story)
  • FTC only on consensus / fee / reward path
  • FRST / FsZT stay Layer 3 — never CheckTx / DeliverTx
  • ETC remains temporary EVM bootstrap host

◇ Research later — not L0

  • Ideas inspired by Cryptonite’s mini-blockchain literature
  • Account tree / balance sheet · prune old txs · fast sync concepts
  • No fork of XCN · no M7 PoW as Frost L0
  • Studied only after BFT mainnet path is shipping
  • May inform optional modules / pruning research — never replaces BFT baseline
  • Full write-up: docs/fcn-cryptonite.md

What FCN means on this site

Visitors may see “Frostcoin Network” / FCN alongside FrostChain and Frost Protocol. That branding is intentional for finux.tech marketing and docs. It does not mean a separate live PoW mainnet is running, and it does not reopen the L0 architecture decision.

Cryptonite (reference only)

Cryptonite (XCN) pioneered a mini-blockchain scheme: account tree for balances, proof chain, pruning of old transactions, ~1 min blocks, M7 PoW. Frost engineers may study those scalability ideas. FrostChain production consensus remains BFT @ 300s.

Honesty checklist

Decision (locked): Ship BFT L0 first. Add Cryptonite-inspired account-tree / pruning research later without forking XCN PoW. See repo docs/fcn-cryptonite.md and docs/consensus.md.