feat: ERC-7984 Confidential Tokens #3139
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Description and Related Issue(s)
This PR integrates ERC-7984 confidential tokens introduced for backend in blockscout/blockscout#13593 .
One main difference between ERC-20 and ERC-7984 is that token balances are not known to public (because of their encrypted nature), that's why we show "•••••" placeholder instead of the actual value (in future improvements confidential protocol integrations, these values might be decrypted with the wallet having a decryption access).
Proposed Changes
A new type of token, ERC-7984, which mostly works as ERC-20 excluding encrypted balances, which was described earlier.
Additional Information
ERC-7984 readings: