Contract and whitepaper: https://ethereumgold.io/?ref=0x9640a35e5345cb0639c4dd0593567f9334ffeb8a
Having an Ethereum-backed token like in the 0x167 smart contract improves on the current systems by being the most liquid token possible. All of the Ethereum required to pay all holders their Ethereum is held in 0x167 contract balance.
This ensures total liquidity unlike other liquidity pools where liquidity can be pulled from the ecosystem and everyone is left not able to sell. It also introduces the possibility of multi-dimensional gains, put simply, not only can the price of the IND token go up and down in ETH amount but the USD/ETH value of that ETH can also go up and down independently.
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ETH burn rate is currently over 5 ETH per minute according to Ultrasound.Money. The fee-burning tracker is reporting that over 300,000 ETH, or roughly $1.12 billion, has been burnt since the London upgrade launched in early August