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29 lines
860 B
Markdown
29 lines
860 B
Markdown
## SeedXOR multi-location backup scheme
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Full documentation: [seedxor.com/](https://seedxor.com/)
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Existig seeds can be broken up with seedXOR or can be used as components of a new a scheme.
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If there was a BIP39 passphase used keep a copy of the passphrase on every location.
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Currently the scheme can be used on a [ColdCard](https://github.com/Coldcard/firmware/blob/master/docs/seed-xor.md) and is planned to be implemented in [SeedSigner](https://github.com/SeedSigner/seedsigner/issues/43).
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The seed can also be calculated manually so the ColdCard is not strictly necessary for recovery
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---
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### Components required for a full restore
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* Coldcard or manual calculation + any BIP32 compatible wallet
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* Seed1
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* Seed2
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* Seed3
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---
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### Packages for a 2-of-3 setup
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#### Location 1
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* Seed1
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* Seed2
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#### Location 2
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* Seed2
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* Seed3
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#### Location 3
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* Seed1
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* Seed3 |