I really don't think that you will really solve something here. 3rd party wallets already have ways to convert your cryptocurrencies to cash via bank deposits, e-commerce websites also use payment processors such as Bitpay and Coinbase Commerce to make it possible for your customers to pay in crypto which these payment processors would also handle the conversion of it via bank deposit as well. With the process you have given it will only complicate things for something that is already been solved by a lot of wallet and payment processor services.
Perhaps, as long as cryptocurrencies are not recognized as a payment
instrument and do not have legal status, this is not required at this stage.
Processing services work with a limited number of cryptocurrencies.
But if we consider an increasingly stringent policy regarding the legal use of
cryptocurrencies, then most likely we will soon come to this.
This same protocol allows you to sign transactions and thereby legally enter
other coins from the Ethereum network.
And here, a single strategy was developed to solve this problem.
The
CFTC is also interested in deciding how to use Ethereum and its derivatives
legally as a payment instrument(
request,
comments):
<...>
3. How is the developer community currently utilizing the Ethereum Network?
More specifically, what are prominent use cases or examples that demonstrate the functionalities and capabilities of the Ethereum Network?
4. Are there any existing or developing commercial enterprises that are using Ether to power economic transactions?
If so, how is Ether recorded for accounting purposes in a comprehensive set of financial statements?
5. What data sources, analyses, calculations, variables, or other factors could be used to determine Ether's market size, liquidity, trade volume, types of traders, ownership concentration, and/or principal ways in which the Ethereum Network is currently being used by market participants?
<...>
16. What impediments or risks exist to the reliable conversion of Ether to legal tender?
How do these impediments or risks impact regulatory considerations for Commission registrants with respect to participating in any transactions in Ether, including the ability to obtain or demonstrate possession or control or otherwise hold Ether as collateral or on behalf of customers?
17. How would the introduction of derivative contracts on Ether potentially change or modify the incentive structures that underlie a proof of stake consensus model?
18. Given the evolving nature of the Ether cash markets underlying potential Ether derivative contracts, what are the commercial risk management needs for a derivative contract on Ether?
<...>
20. Are there any types of trader or intermediary conduct that has occurred in the international Ether derivative markets that raise market risks or challenges and should be monitored closely by trading venues or regulators?
21. What other factors could impact the Commission's ability to properly oversee or monitor trading in derivative contracts on Ether as well as the underlying Ether cash markets?
<...>
So the "Zenith Protocol" is aimed at solving the legal issue of legalizing
cryptocurrency, which sooner or later will have to be resolved.