KEYS / IOUSOURCE-LED COMPARISONS
Self-custody vs. custodial service
Compare who controls the keys, whom withdrawals depend on, and how risks, backups and access recovery differ.
Self-custody puts key management and recovery in the user's hands. Custodial service adds dependence on a provider; it may simplify operation but does not transfer all your risks to that provider.
02The differences that matter
You authorize spending through your own keys and script conditions. Technical ability to sign does not by itself establish legal ownership.
The provider manages keys; the app balance is its record. Executing a withdrawal depends on its processes, terms and availability.
Recovery requires the correct words, order, format and any passphrase. Derivation paths, address types and configuration may be needed to find all funds.
Account recovery may involve identity checks and support. Restored login does not guarantee recovery of lost assets or the firm's ability to pay.
A Full Node checks block, spending and reward rules. Even greater mining power cannot make that node accept a block violating its rules; verifying the network does not establish a custody company's solvency.
Proof of Reserves may demonstrate selected assets at a particular moment. It may not include all liabilities, encumbrances or client rights and is not a solvency guarantee.
Self-custody carries the risk of lost or misused keys; the network offers no ordinary access reset. Value in another currency can fluctuate sharply. Custodial services add provider risks.
A hack, business failure or withdrawal restrictions can block access. Check asset segregation, reuse of client assets and the scope of any insurance in the terms.
Multisig can distribute signatures across devices or people. The required signature threshold and available backups determine whether you depend on another party.
A wallet brand or “cold storage” label does not identify who controls keys. Find out whether the provider can authorize or block spending without you.
No model is automatically safest for everyone. Security depends on manageable backups, device protection, recovery and the provider's actual powers, not merely the service name.
This compares general models, not specific custodian recommendations. Legal entitlement, insolvency protection and insurance vary by contract, product and country; key control does not replace them.