modulo

Imagine a near-future where accounts no longer exist. You can go to a new web store, browse wares and buy something without ever creating an account or providing any private information, just as you would a store on the street

Add what you want into the shopping trolly, pay with #bitcoin, and sign shipping instructions with a private key (not necessarily the same private key as your #bitcoin)

The merchant delivers the goods to your designated shipper with your signed instructions

The shipper already has your delivery location you provided (in advance) and confirms your signed instructions, and sends you a #bitcoin invoice. Once you pay your items are on the way

Merchant doesn’t know who you are or where the goods are going or how to market to you in the future. No personal information to sell to a 3rd party, and shipper has no idea about contents

Just like it should be

#bitcoine #nostr

I am pondering the next #bitcoine #spreadsheet for my website https://modulo.network and trying to decide what might be most interesting to create:

A) A binary version of the ECDSA secp256k1 public key spreadsheet (it might make it slightly smaller than its current version—it is already underway but I’ve run short of time recently)?

B) A spreadsheet to manage UTXO and sign said UTXO for publishing to the mempool, like a spreadsheet wallet?

C) A spreadsheet to show how taproot signatures work?

A is the only one I know is possible, and B requires HMAC development and a demonstration how ECDSA signing works, as well as some other work. I have no idea how long taproot will take…

Any suggestions for the above or requests for other #bitcoin #Excel spreadsheets?