Pos Recovery: safely moving the rare sat from a Proof of Sats card

A Proof of Sats card is designed as a physical collectible containing a remarkable satoshi preserved within its original UTXO. In most cases, we therefore recommend not moving the satoshi: once removed, the card loses an essential part of its purpose.

However, every owner should remain free to access the satoshi contained in their card and transfer it if they choose to do so.

This is why we developed Pos Recovery, a dedicated tool for recovering the sats contained in Proof of Sats cards.

Why not use a standard wallet?

Sweeping a card’s private key directly into a conventional Bitcoin wallet can introduce a risk: depending on how the transaction is constructed, some sats from the card’s UTXO may be used to pay mining fees. If the rare sat is located within that portion, it could be lost as fees.

Pos Recovery is designed to avoid this scenario.

The tool transfers the entire card UTXO to an Xverse Ordinals address, preserving the order of the sats and therefore the rare sat’s position. Mining fees are funded separately through another Xverse UTXO.

A local and open-source tool

Pos Recovery runs locally on your computer. The card’s private key is not sent to Xverse and is not stored persistently.

The full source code is available on GitHub so that anyone can inspect it, audit it, or verify how it works.

The tool has also been tested end to end on Bitcoin Signet and then on Mainnet using a real Proof of Sats card.

Pos Recovery is available for free on GitHub, together with complete documentation, usage instructions and a video tutorial.