Cypherock X1
Bitcoin Inheritance
Cypherock X1 is a hardware signing device that eliminates the single point of failure in Bitcoin key management by distributing private key material across one hardware unit and four NFC-enabled cards using Shamir Secret Sharing. Any 2 of the 4 cards can recover the wallet without the device, making the system naturally suited for inheritance: cards can be distributed among heirs, attorneys, and trusted custodians. The device is open source and supports Bitcoin along with other assets.
Details
- Platforms
- Desktop
- Key Scheme
- 1 device + 4 NFC X1 Cards (any 2-of-5 to recover)
- Open Source
- Yes
- Service Type
- Hardware wallet with distributed key inheritance
- Custody Model
- Self-custody (Shamir Secret Sharing)
- Bitcoin Support
- Yes
- Hardware Components
- 1 X1 device + 4 NFC X1 Cards
- Inheritance Mechanism
- Nominee designation with dedicated X1 Cards; inactivity-triggered estate recovery
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