Bitcoin: Multisig 2-of-3 Vault — Stop Single-Key Risk | T-Shirt

“Bitcoin: Multisig 2-of-3 Vault” illustrates a spending policy requiring valid signatures from any two of three authorized keys. The Signing Threshold reduces reliance on one key, while Signer Distribution separates signers across devices or locations. Resilient custody also depends on the Wallet Descriptor, verified Key Backups, tested Recovery Procedures, and deliberate Threat Modeling. Multisig can reduce some failure modes, but its added complexity should be documented and rehearsed before funds are deposited.

Printed on a Bella+Canvas 3001 Unisex Jersey T-Shirt.

Product features

• Constructed with side seams for added shape and durability
• Elastic ribbed knit collar retains its shape over time
• Shoulder tape stabilizes the back of the garment, preventing stretching
• Utilizes advanced printing techniques for vibrant and detailed designs
• Crafted from 100% Airlume combed and ring-spun cotton for ultimate comfort

Care instructions

• Machine wash: cold (max 30C or 90F)
• Non-chlorine: bleach as needed
• Tumble dry: low heat
• Iron, steam or dry: medium heat
• Do not dryclean

Frequently Asked Questions

What does a 2-of-3 multisig policy require?
A 2-of-3 policy locks bitcoin under a spending condition defined by three authorized public keys. A valid spend must include signatures produced by the private keys corresponding to any two of them, so no single signing key can authorize the transaction alone.

How does 2-of-3 multisig reduce single-key risk?
If one key is lost, the remaining two can still authorize a recovery spend. If one key is compromised, an attacker still lacks the second signature required to spend. Multisig does not eliminate risk: losing two keys, compromising two signers, misconfiguring the wallet, or failing to preserve recovery data can still cause loss.

Why should the wallet descriptor and recovery process be backed up?
A typical multisig descriptor records the spending policy, script type, derivation paths, and public-key information used to reconstruct the wallet’s addresses. It does not replace the private signing material. Preserve the required configuration, keep key backups appropriately separated, and test the recovery process before depositing substantial funds.

How do I choose the right size?
Lay a similar T-Shirt that fits you well on a flat surface. Measure its width from armpit to armpit, length from shoulder to hem, and sleeve length from the center back. Compare those measurements with the product-specific size chart and allow for the listed ±1.5 in manufacturing tolerance.

How long does production and shipping take?
This T-Shirt is made to order. Production is estimated at 2–5 business days, followed by 4–8 business days for shipping within the 48 contiguous U.S. states and Washington, D.C. The estimated total delivery time is 6–13 business days.