Concepts Sources Graph Archive Round Robin →

Custody

Sector·4 cited sources·updated 2026-04-27

Vendors that hold digital assets on behalf of institutional clients — typically with cryptographic key management, regulatory licensing, and bankruptcy-remote segregation as core service primitives.

Definition

A custodian is a vendor whose service is the safekeeping of client digital assets. The institutional-buyer questions are: under what regulatory regime does the custodian operate, what cryptographic key-management architecture does it use (cold storage, MPC, multisig), what's the bankruptcy-remoteness of client assets, and what's the audit posture. Custody is often the most regulation-heavy sector in digital assets — qualified-custodian status under specific jurisdictions (US-NY BitLicense, US-Federal trust charter, EU equivalent regimes) is frequently a first-order screening criterion for institutional buyers.

This sector is named on the public 51 deck as a distinct research category (Slide 10 filter labels include "Custody"). The wiki uses it as a sector entity; specific 51-product taxonomy detail is excluded under Path A.

Vendors in this sector

  • BitGo — institutional digital-asset custody and infrastructure provider; multi-jurisdictional subsidiary structure with both NYDFS Limited Purpose Trust Charter (BitGo New York Trust Company, LLC, since 2021-03) and OCC National Trust Bank Charter (BitGo Bank & Trust, National Association). First custody-sector vendor in the wiki.

Three US regulatory paths for digital-asset custody

The two trust-charter sources in this wiki (NYDFS — Virtual Currency Businesses (BitLicense + Limited Purpose Trust Charter) and BitGo public homepage (fetched April 2026)) together establish that US digital-asset custody operates under three distinct regulatory paths:

Path Source Issuing authority Scope
State BitLicense (BitLicense) 23 NYCRR Part 200 NYDFS NY-state-level transactional + custody activity. Custody-only vendors typically don't choose this path.
State Limited Purpose Trust Charter (Limited Purpose Trust Charter) NY Banking Law NYDFS NY-state-level fiduciary-powers + bundled MTL. Canonical state path for custody-focused vendors (BitGo NY, Coinbase Custody Trust, Gemini Trust).
Federal OCC National Trust Bank Charter (OCC national trust bank charter) National Bank Act Office of the Comptroller of the Currency (OCC) Federal-level multi-state authorisation; bank-like regulatory perimeter without FDIC deposit insurance for digital-asset custody.

Vendors may hold multiple authorisations across the three paths (BitGo holds both state Limited Purpose Trust Charter and federal OCC charter for its different US subsidiaries). EU-side custody is governed separately under MiCA CASP Title V.

Governing concepts

  • MiCA compliance — under MiCA, custody-and-administration of crypto-assets is a Title V CASP service (Crypto-asset service provider (CASP)).
  • Crypto-asset service provider (CASP) — Title V regime that covers custody as one of the named services.
  • BitLicense — NYDFS regime; custody activity is Part 200(2).
  • Limited Purpose Trust Charter — alternative NYDFS regime; preferred path for custody-focused vendors due to fiduciary-powers authorisation and bundled money-transmission authority.
  • OCC national trust bank charter — federal alternative path; multi-state operating scope; bank-like regulatory perimeter.
  • Qualified custodian — federal regulatory status under the Investment Advisers Act Custody Rule (Rule 206(4)-2). Required for vendors serving SEC-registered investment-adviser clients.
  • mpc-key-management — multi-party computation as the modern key-management architecture. (Page emerges from source 7 — depending on whether BitGo or Fireblocks; both are MPC-relevant.)
  • bankruptcy-remote-segregation — the structural property that makes client assets recoverable in a custodian failure scenario. (Page emerges if a source substantively develops it.)
  • Counterparty-graph research — custodians are dense graph nodes (every issuer they custody for, every audit firm they work with, every regulator they report to).

Notable regulatory frame

  • EU MiCA (ESMA — Markets in Crypto-Assets Regulation (MiCA) hub) — custody-and-administration is a Title V CASP service. Custodians serving EU clients need CASP authorisation; transitional period under Article 143 runs until 1 July 2026.
  • NYDFS (NYDFS — Virtual Currency Businesses (BitLicense + Limited Purpose Trust Charter)) — two parallel paths for custodians operating from or serving New York. The BitLicense regime applies to "storing, holding, or maintaining custody or control of Virtual Currency on behalf of others" (23 NYCRR Part 200(2)). The Limited Purpose Trust Charter is the alternative path with two structural advantages: fiduciary-powers authorisation and bundled money-transmission authority. Most custody-focused vendors choose the trust-charter path. Per the NYDFS Regulated Entities list: BitGo New York Trust Company, LLC (since 2021-03), Coinbase Custody Trust Company, LLC (since 2018-10), and Gemini Trust Company, LLC (since 2015-10) all hold this charter. NYDFS 2025-09-30 "Updated Guidance on Custodial Structures for Customer Protection in the Event of Insolvency" (referenced from the source page; not separately ingested) supersedes 2023-01-23 prior guidance — relevant for institutional-buyer diligence on custodian insolvency posture.
  • SEC qualified-custodian rules — apply for custodians serving US registered investment advisers.

Cross-sector connections

Open questions

  • Where does "custody" boundary against "wallet provider" — does any vendor whose product holds keys belong here, or only those operating under a regulatory custody charter?
  • How does the sector model on-chain protocol custody (Sky's collateral vaults, smart-contract-held positions) where the "custodian" is a smart contract rather than a regulated entity?

Sources cited