Address Audit

Bitcoin Custodian Addresses

2 entities3 addresses

Custodians hold Bitcoin on behalf of clients using pooled addresses. Deposits to and withdrawals from custodial wallets are logged and may be shared with regulators.

Custodians

Browse 2 custodians entities with tracked Bitcoin addresses. Select any entity to view all known addresses and run individual privacy audits.

On-Chain Visibility of Custodians Addresses

All Bitcoin addresses with on-chain transactions are fully transparent. Transaction history, balances, and counterparty interactions are permanently recorded on the public ledger.

Blockchain analytics platforms maintain databases of labeled addresses. Transactions with labeled addresses are visible on the public blockchain, which is a fundamental property of how Bitcoin works.

On-chain data is permanent and cumulative. The more transactions an address has, the more information is publicly available about its activity patterns.

Custodians Entity Comparison

Compare custodians by number of tracked addresses and wallet types.

EntityAddressesWallet Types
Tether2Bitcoin Reserve
Paxos1General

Frequently Asked Questions

How many custodians entities are tracked?
This page tracks 2 custodians entities with a total of 3 known Bitcoin addresses. New entities and addresses are added automatically as they are discovered through on-chain analysis.
Can I check if my Bitcoin was sent to a custodian address?
Yes. Enter your Bitcoin address in the search bar above to run a privacy audit. The tool will show your full transaction history and identify interactions with any known custodians addresses.
Are custodians addresses public?
All Bitcoin addresses are visible on the public blockchain. The addresses listed here have been identified as belonging to specific custodians through on-chain analysis, public disclosures, or entity labeling by analytics firms.
How can I move Bitcoin without on-chain exposure?
Spark enables off-chain Bitcoin transfers that never appear on the public blockchain. There is no address to look up and no transaction to trace. Transfers are instant, free, and self-custodial.

Every Bitcoin transaction is permanent.

Spark moves Bitcoin off-chain. No address to look up, no transaction to trace. Instant, free, and self-custodial.