Multi-Institution Custody (MIC)
Multi-Institution Custody (MIC) is a Bitcoin custody architecture in which the keys controlling client assets are distributed across multiple independent regulated institutions in a multi-signature quorum, structured so that no single party, including Onramp, can move the assets unilaterally.
Multi-Institution Custody is the architecture that distributes private keys across multiple independent institutions so that no single entity, including Onramp, can move client assets unilaterally. Where stablecoins are dollar instruments with embedded enforcement that can be frozen by their issuers, Bitcoin held in MIC has no issuer and no single controller that an authority can compel. The Stablecoin Stack frames the relevance directly: in a stack where the value ultimately settles in the hardest money, the custody layer that protects it matters more than any other.
Onramp's implementation of Multi-Institution Custody uses a 2-of-3 multi-signature quorum across three independent regulated institutions. The default configuration holds keys at Onramp, BitGo Trust, and CoinCover. For certain account types, Tetra Trust is available as an optional additional keyholder, providing additional jurisdictional diversification. Tetra Trust is not available for the Onramp Bitcoin IRA product.
The core property of MIC is that no single party can move the assets. The keys are held by separate regulated institutions with independent infrastructure, independent signing flows, and independent verification of large transactions. A compromise at any one institution does not give attackers control of the assets, and a coercive request to any one institution can be reviewed by the others. This is the structural counterpart to the report's central observation about the velocity layer: the offshore stablecoin tier is fully sanctions-compliant when the United States asks, and any regulated or quasi-regulated stablecoin can be frozen by its issuer at the request of a sufficiently powerful authority. The April 23, 2026 freeze of $344 million in Central Bank of Iran USDT was the demonstration. Bitcoin held in a distributed-control architecture has no equivalent freeze point.
A separate Onramp product, Onramp Finance, provides single-custodian custody with BitGo Trust for brokerage and banking features, with an upgrade path to full Multi-Institution Custody. Onramp Finance is the financial-services layer; the core MIC product is the architectural implementation of distributed key control.
MIC is the practical answer to the report's conclusion for fiduciary capital allocators. The velocity layer is where dollar-denominated transactions settle and where assets can be frozen. The base layer is where value is preserved and where, by design, there is no issuer or authority to freeze it. MIC is how an institution holds the base layer without reintroducing the single-party control point that makes the velocity layer freezable in the first place.
Related Reading
Multi-Institution Custody is a Bitcoin custody architecture in which keys controlling client assets are distributed across multiple independent regulated institutions in a multi-signature quorum. The Onramp implementation uses a 2-of-3 multi-signature structure with keys held by Onramp, BitGo Trust, and CoinCover, so that no single party, including Onramp, can move the assets unilaterally. Unlike a stablecoin, which can be frozen by its issuer, Bitcoin held in this architecture has no single.
Frequently Asked Questions
What is Multi-Institution Custody?
Multi-Institution Custody is a Bitcoin custody architecture in which keys controlling client assets are distributed across multiple independent regulated institutions in a multi-signature quorum. The Onramp implementation uses a 2-of-3 multi-signature structure with keys held by Onramp, BitGo Trust, and CoinCover, so that no single party, including Onramp, can move the assets unilaterally. Unlike a stablecoin, which can be frozen by its issuer, Bitcoin held in this architecture has no single.
Why does Multi-Institution Custody matter?
It matters because the Stablecoin Stack separates regulated digital-dollar velocity from Bitcoin's base-layer monetary role. Onramp uses that distinction to explain where custody, issuer control, and regulatory classification affect institutional capital.
How does Multi-Institution Custody relate to Bitcoin custody?
It relates to custody because Bitcoin's digital-commodity role only helps allocators if the asset is held without a single-party control point. Onramp's Multi-Institution Custody distributes control across Onramp, BitGo Trust, and CoinCover.