Quote from: nc50lc on September 21, 2023, 07:10:22 PM

Quote from: tarmi on September 07, 2023, 01:58:18 PM

So it makes me wonder if those QR codes are actually my wallet, or maybe they are just the blocktrail pubkeys as third party of the 2-3 signature

One thing's for sure, Blocktrail/BTC.com never issued P2PKH to their clients, it's always 2-of-3 MultiSig.
So, it's either what you're guessing or the funds are just sent to the derived P2PKH address unintentionally. (like imported the xpub to a wallet and used it to receive BTC)

Is your backup V1 (developer)? Since it has that extra blocktrailKey @m/9999'.
In that case, I'm afraid I'm not familiar with the developer version which may be different than V2 or V3 backups.
Try to contact neutraLTC to check if he knows if the V1 blocktrailKeys are recoverable from your backups mnemonics.

@others
Those mnemonic phrases in the backup aren't actually the BIP39 seed phrases of the MultiSig wallet.
Those are actually what is "labeled" but converted into a BIP39 mnemonic.
In other words, deriving the seed from it isn't the correct way to get the master key and extended keys, the source entropy must be derived from it instead.

Examples:
Encrypted Primary Seed

Code:

library fantasy right giraffe impulse believe unique puppy rain amount abandon above cotton lottery cash exclude bicycle hamster pair clock edit picture two guard supply shadow wife maximum tired lion speed cruel draw knife brave wheel pumpkin foot plate involve eight guide mule carbon valley enroll grow town enemy sunset power regular allow cycle plug expose immune output pave result

The source entropy is, which is the "Encrypted Primary Seed":

Code:

810a62e7311722297b6570b101000000430d0808d27715ed167c15b46748baeb3ad9d89bebc4be2b047441a4426f746d7d0adab5e98bb146ecf245113f0e9659c73249fb32a55a606a6da9b28571b3ae

Backup Seed

Code:

scissors census engage duty alarm salon cabbage benefit two sudden service whisper organ caught whisper much symptom fire radio sadness faint tip write illness

The source entropy is, which is the "Backup Seed" (backupSeed - 256Bits):

Code:

c104a92922405d7d07e8a9ebbb1310fd49c648fea488dc8ae6c35ef51fc53fa3

Reference: https://github.com/blocktrail/wallet-recovery-tool/blob/master/src/libs/blocktrail-sdk/docs/KEYS.md#print-recovery-sheet

The wallet is V3

My guess is still those QR codes show the pubkey for the blocktrail wallet, and i don't have those xprv keys to those.