Multi-Institution Custody (MIC)

Multi-institution custody is a model in which the keys to a multisignature bitcoin quorum are distributed across independent, regulated institutions, so that no single organization can move or lose the funds. In a typical 2-of-3 arrangement, three institutions each hold one key and any two must cooperate to sign a transaction.

Why it matters

MIC targets the weaknesses at both ends of the custody spectrum. Single-custodian arrangements concentrate risk in one balance sheet, one security team, and one jurisdiction, as failures like FTX in 2022 made vivid. Pure self-custody eliminates counterparty risk but concentrates operational risk in one person, with no recourse after mistakes, coercion, or death. Distributing keys across institutions removes single points of failure while keeping assets bankruptcy-remote from any one provider.

The model also supports inheritance and governance. Beneficiaries, corporate boards, or trustees can be woven into signing policies, and institutions can be located in different legal jurisdictions to reduce seizure and regulatory risk.

In the gold vs bitcoin debate

Gold approximated this idea with allocated storage split across vaults in different countries, a strategy used by funds and wealthy families for decades. Bitcoin implements it natively: the multisignature quorum is enforced by the protocol itself rather than by contracts, making the security model auditable in code rather than in courtrooms.