Maybe stupid question but i am not sure.If I have public address for bitcoin and public address for ethereum,can i know if these public addresses belong to same seed even if I dont have seed?
They are different blockchain, but They could share the same mnemonic phrase, which is somehow a way to sahre their seed.
If you create a wallet in coinomi or ledger nano for example, your keys and addresses of these two blockchain will share the same mnemonic phrase, i.e. seed.
yeah so I have public eth and public bitcoin address which should be from same seed,but no seed to confirm