Summary
Ketju does not approve tBTC: it replaces native Bitcoin with an upgradeable Ethereum token whose security depends on an honest majority of operators and on bridge governance. tBTC is one of the better-disclosed decentralized Bitcoin bridges. It has rotating threshold wallets, governance delays, audits, a redemption watchtower and a coverage pool. It is useful infrastructure, but no approved client use now needs those risks instead of native BTC.
Review triggers
- A separately approved client position requires tBTC and no native-Bitcoin approach meets the same purpose
- Operator concentration and wallet-member selection, measured independently, stay within a documented honest-majority stress limit
- A native redemption at the proposed size completes within the stated service level, and the coverage pool can absorb the modeled wallet loss
- Ketju reviews tBTC at once after any exploit of the bridge, wallet registry, DKG, watchtower or governance
Facts
- Verdict
- Not approved
- Type
- Other
- Chains examined
- Bitcoin, Ethereum
- Reviewed
- Last confirmed