CUSTODY AND WALLET INFRASTRUCTURE

Private Key

A secret cryptographic string that authorizes the signing of blockchain transactions and proves ownership of digital assets. Loss or theft of a private key results in permanent, irrecoverable loss of the associated assets.

EXAMPLE

Institutional custody solutions abstract private key exposure through hardware security modules and multi-party computation, so no single operator can sign unilaterally.

Relevant Roles and Functions

On-chain Role
Head of Digital Asset Custody
Function
Institutional Custody Solutions
Key Management
On-chain Analytics
Sanctions Compliance
Transaction Monitoring
Wallet Infrastructure
Wallet Risk Scoring

Related Terms

Digital Asset Custody

The safekeeping and administration of digital assets—including private key management, transaction signing, and regulatory reporting—on behalf of institutional clients. It is widely regarded as the foundational control point for institutional participation in on-chain markets.

Example

Northern Trust's digital asset custody service for tokenized fund shares handles key management, NAV reporting, and regulatory compliance in a single integrated platform.

Wallet Infrastructure

The software, hardware, and operational systems through which institutions store cryptographic keys, sign transactions, manage access controls, and monitor digital asset holdings at scale.

Example

Copper.co's wallet infrastructure provides tiered access controls, transaction policy engines, and audit logs that integrate with a bank's existing compliance stack.

Self-Custody

Direct control of private keys and digital assets by the asset owner, without delegating to a third-party custodian. For institutions, self-custody requires robust key management frameworks to meet regulatory and fiduciary standards.

Example

Anchorage Digital helps institutions implement qualified self-custody arrangements that satisfy OCC guidance without relying on a third-party custodian.