Recent Crosschain Q&A from Chinese community

This article was first published on Wanchain - Medium
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Q1. How crosschained BTC to wanBTC is realized?

A: Please read this article for general idea:

https://www.explorewanchain.org/#/technology/cross-chain

Codes on Githhub Repo:https://github.com/wanchain/wanchain-crosschain-contracts/tree/btc_wan_cross

Q2. About Storeman Group

Threshold + MPC method to manage cross-chain assets, is it managed through multiple groups? How many groups are there, and how to manage different groups?

A: The previous design was that each cross-chain bridge (two chains or called one pair) use one storeman group with 21 nodes. The latest research update is that cross-chain bridges will share a combined Storeman group to enhance the utilization and security of collaterals. The number of nodes in this combined group can be expanded.

More details please refer to this article:

https://medium.com/wanchain-foundation/understanding-wanchain-two-way-bridge-and-direct-bridge-7f6088617734

Q3. Does each group involve 21 nodes, and requires at least 16 signatures, and generates one address?

A: It is now a Storeman group of 21 nodes, which can be expanded. The required threshold signature is 15, and aone address is generated.

Q4. When one Storeman group is switching to a new group, do other groups need to re-generate key fragments?

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To keep reading, please go to the original article at:
Wanchain - Medium

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