DEx.top - Instant Trading on Chain
DEx.top achieves instant trading experience with its two-ledger architecture: an off-chain ledger responsible for providing instant trading experience and a smart-contract based on-chain ledger to ensure the traders' assets are safe.
The two ledgers are closely synchronized, where all trading activities are first registered on the off-chain ledger and later get exactly replayed (executed in the same way and the same order) and confirmed on the on-chain ledger. The on-chain ledger can be interpreted as a delayed version of the off-chain ledger, which will eventually catch up.
See the White Paper for details.
Here is an article introducing the gas cost saving methods used in DEx.top [link].
DEx.top is under the Apache 2.0 license. See the LICENSE file for details.