Key Takeaways:
GMO Coin may suspend Bitcoin trading, deposits, and withdrawals when eCash snapshots balances at block 963,648 around midnight Japan time on Aug. 23.
GMO Coin's Aug. 7 notice says any suspension remains conditional, with both its start and end times undecided. The possible scope includes Bitcoin spot trading through GMO's dealer and exchange services, BTC/JPY crypto FX and leveraged trading, plus BTC deposits and withdrawals.
eCash is a new Bitcoin-derived chain that plans to credit holders with a separate ECX asset. Its live roadmap now describes this weekend's event as an Alpha stage issuing practice ECX, rather than the final mainnet launch. The current roadmap places Alpha at block 963,648 around Aug. 23, Beta at block 967,680 around Sept. 20, and Mainnet at block 973,728 around Oct. 31. Under eCash's current explanation, the Alpha and Beta snapshots credit practice ECX; permanent ECX arrives at the mainnet snapshot, and practice units can be burned to redeem the permanent asset.
The revised schedule does not remove the technical concerns behind GMO's warning. The exchange and eCash materials say the new chain uses the same address formats as Bitcoin, while replay protection is opt-in. GMO said those features could create transfer risks, and warned that volatility and thin liquidity could widen spreads or contribute to margin calls and forced sales, while early chain instability could lead to transaction reversals.
That description differs from the project's integration guide, updated Aug. 11, which still calls block 963,648 the fork point and describes a 1:1 ECX credit there. The guide labels itself pre-launch and says final parameters, including the fork height and replay scheme, would be published separately.
ECX is separate from the existing XEC asset and from BIP-110, a different Bitcoin soft-fork proposal whose timeline uses nearby block heights. GMO and eCash both say the ECX chain does not alter users' existing BTC. Bitcoin traded at $68,361, up 5.76 percent over 24 hours, while XEC changed hands at $0.00001, up 4.49 percent, as of the Aug. 19 session.
For now, block 963,648 is a live planning point for GMO Coin rather than a confirmed freeze. The exchange's next notice, if one comes, will determine whether customers face an actual interruption and provide the missing start and end times. A pause at the Alpha stage would test how exchanges handle replay risk on a chain whose address format mirrors Bitcoin's, and thin liquidity could leave early ECX holders exposed to wide spreads if trading opens before the mainnet snapshot.
This article is for informational purposes only and does not constitute investment advice.
