Support Cosmos EVM new Key type

[iwbinb]

Cosmos has recently integrated the EVM module (https://evm.cosmos.network) and introduced a new key type: cosmos.evm.crypto.v1.ethsecp256k1.PubKey.
pubkey: '{"@type":"/cosmos.evm.crypto.v1.ethsecp256k1.PubKey","key":"abcdefg"}'
Some new chains have already started integrating Cosmos EVM and are using this new key type, but Ping Explorer does not yet support it. Please consider adding support.

[liangping]

@iwbinb Could you provide a testnet with swagger? it would be much easier for us

[iwbinb]

Tac testnet used the cosmos evm sdk.
Github: https://github.com/TacBuild/tacchain
Tacchaind version | v0.0.12
You can use NodeStake services to sync the tac testnet node: https://nodestake.org/tac

[iwbinb]

Hey @liangping, this testnet is ok? Would it be helpful for your integration of the new Cosmos EVM key type?

[liangping]

will do, but not now, schedule is full.

[iwbinb]

It’s said that the already launched XRP mainnet also uses the Cosmos EVM key, and the upcoming TAC mainnet and Babylon upgrade will adopt it as well. Will this accelerate the timeline for supporting it?