These assets are backed by extrinsic collateral, and they can only be fully collateralized on a single chain at a time.
This means that, during a fork, the issuers will need to recognize one chain as canonical.
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这些资产由外部抵押品支持，一次只能在一条链上完全抵押。
这意味着，在分叉期间，发行人需要将一条链识别为规范链。
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