BitcoinVault is a scam, read here:

https://twitter.com/bitcoin_v/status/1286649416854786051

BitcoinVault blockchain consensus rejects any address that isn't controlled by the developers. They don't tell the community this, so when someone tries to solo mine or set up their own pool to mine BitcoinVault, their block will ALWAYS be rejected. Only the developers have the private key to the allowed addresses. This is a true scam.

BitcoinV is the real BTCV and existed before BitcoinVault. BitcoinV aims at being a more decentralized form of Bitcoin via its Variable Block Rewards which should form more SOLO miners over time. BitcoinVault's approach is centralized mining that is controlled by the dev.

In short, stay away from BitcoinVault!