Breakthrough: First PoW Blockchain with Instant Finality
Speaking at the Electronic Cash Conference in Barcelona, eCash (XEC) Founder Amaury Séchet announced the much-anticipated launch of Pre-Consensus. Mainnet launch is programmed to activate with the upcoming November 15 eCash network upgrade.
Pre-Consensus leverages the Avalanche protocol to make eCash transactions fast and secure. The integration of Avalanche consensus into eCash’s core protocol represents a historic first for Proof‑of‑Work (PoW) blockchains.
“Pre-Consensus is a milestone not just for eCash, but for digital cash technology in general.” – Amaury Séchet, eCash Founder
For users, Pre-Consensus means no more waiting for block confirmations when depositing funds to their go-to eCash exchange like Binance, Upbit, Bithumb, HTX, or CoinEx. All transactions are finalized within 3 seconds, allowing businesses to credit deposits immediately. See all the services that already support Avalanche finality for eCash on https://scorecard.cash/.
eCash’s Nakamoto/Avalanche hybrid creates one of the most performant and robust consensus models in blockchain today—positioning the network as a highly secure, lightning-fast, and extensible Layer-1 designed to deliver electronic cash at planetary scale. Instant Finality is part of a broader vision of internet-native cash. Read what makes this a significant achievement at https://e.cash/blog/instant-finality.
Avalanche on eCash was independently implemented by the Bitcoin ABC development team and is distinct from the AVAX blockchain. You can learn about all the ways eCash’s Avalanche implementation turbocharges the network at https://e.cash/blog/avalanche.
You can read the Korean version of this article here.


