Multi-Signature Wallets and Audit Documentation
How to prepare documentation for 2-of-3 and other multi-signature cold storage arrangements before your annual audit.
Multi-signature setups add security but multiply documentation complexity. Holders with 2-of-3 or 3-of-5 arrangements should prepare differently than single-device holders.
What Your Auditor Needs to Know
- Total number of signers and required threshold (e.g., 2-of-3)
- Which devices or keys each signer controls
- Whether all signers are you, or if co-signers include family members or services
- The wallet software used to construct the multi-sig (Sparrow, Electrum, Casa, etc.)
- On-chain address(es) associated with the arrangement
We never need co-signers present during the audit unless you choose to include them in a successor briefing.
Common Documentation Gaps
The most frequent issue: a holder set up multi-sig two years ago and forgot which software was used to generate the configuration. Without the wallet configuration file or a record of the derivation path, verifying addresses takes significantly longer.
Before your session, locate any setup notes, configuration exports, or emails from when the multi-sig was created.
Signer Role Mapping
We produce a signer role table in your reserve summary: Signer 1 (you, Ledger Nano X, home safe), Signer 2 (you, Coldcard, office), Signer 3 (attorney-held key, location documented separately). This table is often the most valuable page for successors.
Time Allocation
Multi-sig audits typically require an additional hour beyond the standard four-hour session. Mention your multi-sig setup during the consultation call so we quote accurately and block sufficient time.