WOW!! hmm, so how can I safely validate that seed I have?? any programs, software/ hardware I can use offline???
What exactly are you attempting to "validate"?
Simply that it is a "valid" seed? Or that it generates a
known AddressXYZ?
As the previous poster mentioned... running Electrum offline and using the seed there (would probably need to use "Options -> BIP39 seed" on the seed entry screen) is an option. You could also download
the "iancoleman" Mnemonic Code Converter and run that offline... it has instructions at the bottom of the page.
can I create a new wallet on bitcoin core using a seed where it scans through the block chain to match it??
While it is possible to create a Bitcoin Core wallet from a
seed... it is NOT possible to use a seed
mnemonic... It's important to note the differences... a "Seed" is technically just a very, large, random number... while a seed
mnemonic is the 12/24 words.
Unfortunately, over the years... "seed" and "seed mnemonic" have been used somewhat interchangeably, which leads to confusion
There is a
sethdseed command in Bitcoin Core:
sethdseed ( newkeypool "seed" )
Set or generate a new HD wallet seed. Non-HD wallets will not be upgraded to being a HD wallet. Wallets that are already
HD will have a new HD seed set so that new keys added to the keypool will be derived from this new seed.
But you need to note that the "seed" used here is NOT a 12/24 word seed mnemonic... it is of the "very large random number" variety.
If you have a "12 word" seed mnemonic... then your best chance of recovering anything is using a BIP39 compatible wallet like Electrum.
Do you know/ remember who had a paper wallet/12 word seed back 10 years ago??
If it is 12 English words... and you're sure that its 10 years ago... then I have no idea... BIP39 was from 2013... Electrum was originally 2011... what is the
exact timeframe you are working with?