Seedplate
Summary
Everything this seed backup solution supports, grouped by category.
- Size & Materials
- Water-proofFire-proofCrush-proofCorrosion-proof
- Backup Compatibility
- 12 Words BIP-3924 Words BIP-39Shamir Backup SLIP-39 (1 share)ASCII Strings
Coinkite
Headquartered in CanadaCoinkite is a Canadian Bitcoin hardware company founded in 2012 that specializes in Bitcoin-only self-custody devices. Its products include the Coldcard signing device, Opendime physical Bitcoin bearer sticks, the Blockclock displays, NFC cards, Satschip chips and steel seed backups. Coinkite emphasizes air-gapped workflows and a "Don't Trust, Verify" philosophy, with no altcoin support.
Every spec, organized
Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.
Payment Methods to buy the device
Which methods of payments you can use to buy the device on the official website
- BTC On Chain
YES
Accepts Bitcoin payments via on-chain transactions.
- BTC Lightning
NO
Accepts Bitcoin payments via the Lightning Network for faster and cheaper transactions.
- Alt Coins
NO
Accepts payments in alternative cryptocurrencies other than Bitcoin.
- Credit/Debit Card
YES
Accepts traditional credit and debit card payments.
Size & Materials
- Weight
?
- Dimensions
?
Length x Width x Height
- Length: the longest side of the device
- Width: the shorter side of the device
- Height: the vertical dimension of the device
- Materials
?
- Include All Tools
Center Punch tool required
Whether all necessary tools for setup and engraving are included in the package.
- Water-proof
YES
Resistant to water damage and can withstand flooding or water exposure.
- Fire-proof
YES
Resistant to high temperatures and fire damage, protecting your seed phrase in case of fire.
- Crush-proof
YES
Resistant to physical crushing and compression forces.
- Corrosion-proof
YES
Resistant to corrosion from chemicals, salt water, and environmental factors.
- Shock-proof
?
Resistant to impact and shock damage from drops or physical trauma.
- Stress tests
YES
Has undergone rigorous stress testing to verify durability claims.
Official Documentation
Security
- PIN Protection
NO
Offers PIN-based access control to protect your seed phrase from unauthorized access.
- Encrypted Backup
NO
Supports encrypted storage of your seed phrase for additional security.
- Tamper Evident Seal
NO
Features tamper-evident sealing to detect if the backup has been compromised.
Capacity
- Multiple Private Keys
NO
Supports storing multiple seed phrases or private keys in a single device.
Backup Compatibility
- Output Descriptor
NO
Supports backing up wallet output descriptors that define how to generate addresses and spend funds.
- 12 Words BIP-39
YES
Supports backing up 12-word BIP-39 seed phrases.
- 24 Words BIP-39
YES
Supports backing up 24-word BIP-39 seed phrases.
- Seed QR
NO
Supports backing up seed phrases encoded as QR codes.
- Shamir Backup SLIP-39
1 share
Supports backing up Shamir's Secret Sharing scheme (SLIP-39).
- Hexadecimal Strings
NO
Supports backing up hexadecimal strings.
- ASCII Strings
YES (up to 96 chars)
Supports backing up ASCII text strings.
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