Initially introduced by Keep network, tBTC used to be the only alternative to wBTC prior to the introduction of nBTC. In August 2024, BitGo announced that it will start transferring wBTC custody to a joint venture with BiT Global, while preserving the technology that secures it. A few weeks later, it was suggested by Threshold Network, a company that leverages threshold cryptocurrency to protect digital assets, that they would swap wBTC’s centralised custody, mint and burn the model for permission-less mint and redeem mechanism used for tBTC.