Asset Custody
Pronunciation: AS-et KUS-tuh-dee
Definition
Asset custody is the safekeeping and controlled administration of assets for an owner, including protection of access mechanisms, records, transfers, and ownership evidence.
Overview
Context and purpose
The custodian may hold assets directly or coordinate technology and sub-custodians. Custody does not automatically establish the same legal rights in every jurisdiction or product. Contracts and account structures determine whether assets are segregated, held in trust, recorded in an omnibus wallet, or exposed to claims against the provider. Technical control and legal ownership must therefore be evaluated separately. A custody arrangement should define supported assets and networks, control responsibilities, transaction policy, incident handling, continuity, reconciliation, reporting, insurance, and exit procedures. Safe custody protects both the ability to prevent unauthorized movement and the ability to complete authorized movement when needed. Asset Custody works through controlled onboarding, asset receipt, internal attribution, storage-tier assignment, authorization, signing or provider instruction, monitoring, withdrawal, reconciliation, reporting, and return or migration. Asset Custody should be distinguished from investment ownership and from a software interface.
How it works
Asset custody is the arrangement for controlling, safeguarding and transferring digital assets, including legal responsibilities and cryptographic authority. Physical possession of a device and control of a signing key need not belong to the same party.
Practical checks and failure points
Evaluate key control, segregation, insolvency treatment, operational controls and audit evidence rather than marketing use of the word secure.
Related concepts
Example
A company uses a qualified provider to safeguard keys while retaining approval rights over high-value transfers. The contract specifies recovery and ownership rights if the provider becomes unavailable.
Comparison
Custody describes the safeguarding and authority model; wallet software is one possible component of it.
Key Takeaway
Evaluate key control, segregation, insolvency treatment, operational controls and audit evidence rather than marketing use of the word secure.
Sources
- Bitcoin.org Documentation: Wallets — Bitcoin.org (2026-07-30)
- NIST Documentation: Key Management — NIST (2026-07-30)