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qr_formats.md

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QR Formats

Scanning QR Codes

SeedSigner supports scanning the following QR formats

Animated QR Formats:

  • PSBT
    • Blockchain Commons UR2 PSBT
    • Specter Desktop base64 segments animated
    • Legacy UR Format that should no longer be used

Static QR Formats:

  • PSBT
    • Base64 (if the PSBT byte size is too large, SS may have trouble scanning)
  • Seed
    • SeedSigner SeedQR format
      • A 48 or 96 length string of numbers representing a bip39 wordlist (all wordlist languages supported). The numeric sequence is a concatenation of four-digit, zero-padded segments. Each four-digit segment represents a bip39 word expressed by a zero-indexed position in the wordlist. For example "0000" is abandon in the english bip39 wordlist.
    • SeedSigner CompactSeedQR format
      • The 128- or 256-bit entropy encoded as a binary QR.
    • English Bip39 Mnemonic words separated by a space. Currently only supports 12 and 24 word seeds.
    • English Bip39 Mnemonic with only first 4 letters seperated by a space. Currently only supports 12 and 24 word seeds.

Displaying QR Codes

SeedSigner supports displaying QR's in the following formats

Animated QR Formats:

  • PSBT
    • Blockchain Commons UR2 PSBT
    • Specter Desktop base64 segments animated

Static QR Formats:

  • Seed
    • SeedSigner Seed QR format
      • A 48 or 96 length string of numbers representing a bip39 wordlist (all wordlist languages supported). The numeric sequence is a concatination of four-digit zero padded segments. Each four-digit segment represents a bip39 word expressed by a zero-indexed position in the wordlist. For example "0000" is abandon in the english bip39 wordlist.