I have no doubts that people can memorize 12 or 24 mnemonic words or 10000 digits of Pi. Once you learned them, you have to continue to repeat them and don't miss to verify that your memory is still accurate. Your head might be the safest storage for your secrets but it's also the least reliable one. To verify reliably, you need a safe copy and because of that I consider sole memorization in your head as pointless and dangerous. It has proven more than once to be a recipe for desaster.

If you stop repeating and verifying, you're likely going to introduce errors or forget parts or almost all of it. A trauma or severe illness can erase (big) parts of your memory. I wouldn't want to rely on my biological memory for longer time because I know it will fail me sooner or later.

It's not my cup of tea.

Thanks, but I rarely buy with a credit card, I mostly use P2P trading.

Hello,

$bitcoin$64$f913fa9e5ea97dad615191c23af0f5ebdbe4693ddbea0903d9230832e7ae36c0$16$4cad32d55bbe6595$37167$2$00$2$00

I have original DAT file for this hash, file is original not modified. Wallet receive and sync network without any problems.

So be carefully with sellers here on web, 99% are fake wallets and they want to stole your money.

How are you sure that the words your remember out of the 12 is word 1, 11 and 12, did you memorize your seed phrase? If you did, that's terrible and the fastest way to lose your BTC.

I know of https://github.com/3rdIteration/btcrecover
https://github.com/3rdIteration/btcrecover/blob/master/docs/Seedrecover_Quick_Start_Guide.md

I have never used it, but i think it is most helpful and "easier" to use if you have all the mnemonics, but you don't have them in the correct order, in your case which i am surprised, you have only 3 words out of 12, so i don't know if it is possible to recover it.

Worries faded away and the suggestions are sticked to my memory now.

The summary of it and the answer to my question is gotten here. Thanks.

How did you know the words you remembered are 1, 11 and 12?
Don't you think it is 1, 2 and 3.
When you use the word remembered, it shows that you memorised your seed phrase, which is not a good habit. Even if you could remember all, you will still miss the order of arrangement.

The BIP39 mnemonic recovery words encode a random number of 128 bits (with 12 words) or 256 bits (with 24 words) in a more human friendly way, to write it down without errors. It's this random number that is the starting point for all the further deterministic derivation to the private keys of your wallet.

You would have a hard time to write 128 or 256 zeroes and ones without error. Likely 32 or 64 hexadecimal digits aren't human friendly to backup, too.

And those mnemonic recovery words even contain a partial hash checksum which very very likely allows detection of an error, be it misplaced, replaced or wrong words. It doesn't give you error correction, only detection.



Be more specific and try to rephrase your issue. If you screwed up something with your mnemonic recovery words, be careful though not to show the remainder of them here in public.