network?
No. Read above. It was based on an UTXO snapshot.
No, bu the asmart contarct need to know the balance, so nobody can trick it to seeing wrong balance..
Somehow you have to feed it that info xd
I think you don't need the entire snapshot on the blockchain. I'm not a developer but I guess it is enough to only have a hash in the contract and you can make the snapshot public so that anyone can verify the Merkle tree validity. But I don't know anything about this. An actual programmer would need to answer.
Sell, this can be done without a snapshot, you just need to revert latest transations when checking the balance of the wallet xd
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