Initial free call distribution methods

[jakehemmerle]

Overview

We want to distribute free calls to users to make free actions on the network. We can use any number of Sybil-resistant ways to do this, including:

• Distributing NFTs to early users, which can be used to get some reoccuring free calls or free calls from a faucet (authentication via NFT).
• minting and distributing 'coupons' (via Discord, whatever) which can be cashed-in for some free calls

Todo

• Discuss with product additional methods (NFT idea above)
• Agree upon on what method(s) we want to use
• Write a technical proposal for implementing the methods
• Feature and tests for

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Misc notes on implementation

For way 2, initially I wanted to just generate a list of 16byte strings where the hashes of each get put on-chain and users send them in a TX to redeem them. Jesse brought up a great point that the mempool could be listened to and the credit strings could be nabbed and submitted with a higher tx fee. This needs to be solved before implementing.

[HCastano]

We removed all this.