Tokenized MPC pledges: bringing off-chain-custodied collateral on-chain
Tokenized MPC pledges: bringing off-chain-custodied collateral on-chain
There's a tension at the heart of using crypto as collateral for institutional lending: the safest place to hold significant crypto is in institutional custody with multi-party computation controls, but a smart contract can only enforce a claim against collateral it can actually see and seize on-chain. Tokenized MPC pledges are the bridge, a way to keep collateral in secure custody while still making it usable in an on-chain lending market.
How it works
MPC (multi-party computation) custody secures crypto by splitting the signing authority for a wallet across multiple parties, so no single party ever holds a complete private key. This is the institutional standard for holding significant crypto value, because there's no single key to steal, no single point of compromise, and control can be governed by policy across multiple approvers. The trade-off is that MPC-custodied assets sit off to the side of the DeFi world: they're secure, but they aren't natively sitting in a smart contract where a lending protocol can act on them.
A tokenized pledge closes that gap. The collateral stays in MPC custody, but a verifiable on-chain representation of the pledge is created, a token or attestation that proves the collateral exists, is held in custody, and is pledged against a specific loan. The lending protocol interacts with that on-chain representation, while the underlying asset remains in the secure custody environment. The pledge is enforceable because the custody arrangement is bound to it: the custodian is contractually and operationally committed to honoring the on-chain claim, so a liquidation instruction on-chain translates into a custody action off-chain.
The critical piece is that the on-chain representation has to be trustworthy, backed by real, verifiable custody rather than an unbacked assertion. This is where proof and attestation infrastructure matters: the whole structure only works if the claim that "this collateral exists in custody and is pledged" can be independently verified rather than merely trusted.
Why it matters
Tokenized MPC pledges are what let institutions use crypto as lending collateral without abandoning the custody standards their mandates require. An institution that can't, for policy or regulatory reasons, move significant assets into a raw smart contract can still pledge those assets as collateral if the pledge is structured through verifiable, custody-backed tokenization. It expands the universe of usable collateral to include assets that would otherwise be locked out of on-chain lending entirely.
The structure also improves the security posture of collateralized lending generally. Keeping the bulk of collateral value in hardened MPC custody, rather than sitting directly in a lending contract, reduces the attack surface: an exploit of the lending protocol doesn't automatically reach the custodied assets the way it would if they were held directly on-chain.
Where this shows up in Rekord
Rekord supports collateral that remains in institutional MPC custody through verifiable, attestation-backed on-chain pledges, so institutions can pledge without compromising their custody requirements. This depends directly on trustworthy proof of the underlying custody, which is the verification problem Rekord's Trust Layer exists to solve.