Seed XOR v0.1.2 is now available for Passport Prime!
Split a 12- or 24-word BIP39 seed into 2, 3 or 4 parts, each a valid seed. View them as words or transcribe them as a SeedQR, then combine every part to recover the original.
This is N-of-N, NOT a threshold backup. There is no spare: a missing part can produce a different valid wallet rather than an error.
The app is QnA-signed, requires KeyOS 1.4 or later. It cannot directly access Passport’s master seed or Seed Vault.
App and publisher certificate: https://github.com/BitcoinQnA/keyos-seed-xor/releases/tag/v0.1.2
Details: https://foundation.xyz/app-showcase/seed-xor/
QnA
npub15c…xssvx
2026-09-25 11:00:00 UTC
Author Public Key
npub15c88nc8d44gsp4658dnfu5fahswzzu8gaxm5lkuwjud068swdqfspxssvxSeen on
wss://relay.damus.ioPublished at
2026-09-25 11:00:00 UTCEvent JSON
{
"id": "8ca340a92995ac2f43b64b534623bccb386206e0ce3957da9921193fe625cd4f",
"pubkey": "a60e79e0edad5100d7543b669e513dbc1c2170e8e9b74fdb8e971afd1e0e6813",
"created_at": 1790334000,
"kind": 1,
"tags": [
[
"r",
"wss://auth.nostr1.com/",
"write"
],
[
"r",
"wss://eden.nostr.land/",
"read"
],
[
"r",
"wss://nos.lol/"
],
[
"r",
"wss://nostr-pub.wellorder.net/",
"read"
],
[
"r",
"wss://nostr.bitcoiner.social/"
],
[
"r",
"wss://nostr.fmt.wiz.biz/",
"read"
],
[
"r",
"wss://nostr.mom/"
],
[
"r",
"wss://nostr.mutinywallet.com/"
],
[
"r",
"wss://nostr.oxtr.dev/"
],
[
"r",
"wss://nostr.wine/"
],
[
"r",
"wss://offchain.pub/",
"read"
],
[
"r",
"wss://purplepag.es/"
],
[
"r",
"wss://relay.0xchat.com/",
"write"
],
[
"r",
"wss://relay.damus.io/"
],
[
"r",
"wss://relay.nostr.band/"
],
[
"r",
"wss://relay.primal.net/"
],
[
"r",
"wss://relay.snort.social/"
],
[
"r",
"wss://relay.zhousen929.com/"
],
[
"r",
"wss://welcome.nostr.wine/"
]
],
"content": "Seed XOR v0.1.2 is now available for Passport Prime!\n\nSplit a 12- or 24-word BIP39 seed into 2, 3 or 4 parts, each a valid seed. View them as words or transcribe them as a SeedQR, then combine every part to recover the original.\n\nThis is N-of-N, NOT a threshold backup. There is no spare: a missing part can produce a different valid wallet rather than an error.\n\nThe app is QnA-signed, requires KeyOS 1.4 or later. It cannot directly access Passport’s master seed or Seed Vault.\n\nApp and publisher certificate: https://github.com/BitcoinQnA/keyos-seed-xor/releases/tag/v0.1.2\nDetails: https://foundation.xyz/app-showcase/seed-xor/\n",
"sig": "4dd919515370ef8a7ddc8f2ac4adc9c8efe5a978031acf2c018a599ab8131ed550bacf9e0276f34782d07c3dfd162364e346ad4e600a40025ce93cb51dfcd634"
}