COSMOS (ATOM) ADDRESS CONVERTER

main.go

package main

import (
	"fmt"
	"log"

	"github.com/btcsuite/btcutil/bech32"
)

// try it out at https://goplay.tools/snippet/7b4NzgxvmoM

// COSMOS (ATOM) ADDRESS CONVERTER
//      by      x.com/cosmofract
//         github.com/cosmofract

// Donations welcome, even tiny ones.
// In return you get *at least* a shoutout!

func main() {
	// PUT THE KNOWN ADDRESS HERE (like in the example):
	pubkey := "cosmos1msrzkmqsnf77yqdkkm2h0z93mh445vhrrh8ukw"
	//pubkey := "osmo1msrzkmqsnf77yqdkkm2h0z93mh445vhrtv5vqu"
	//pubkey := "stars1msrzkmqsnf77yqdkkm2h0z93mh445vhrhtspal"

	// PUT THE DESIRED HUMAN READABLE PREFIX HERE (like in the example):
	//prefix := "cosmos"
	//prefix := "osmo"
	prefix := "stars"

	_, rawBytes, err := bech32.Decode(pubkey)
	if err != nil {
		log.Fatalln("What are you doing? Just put a valid address in `pubkey`!")
	}

	newPubkey, err := bech32.Encode(prefix, rawBytes)
	if err != nil {
		log.Fatalln("Are you sure you chose a good `prefix`?")
	}

	fmt.Printf("The user with address\n\t[%s]\n", pubkey)
	fmt.Printf("is also reachable on address\n\t[%s].\n", newPubkey)

	fmt.Printf("\nDouble click the address and copy!\n")

	fmt.Printf("\nTHIS PROGRAM IS FOR DEMONSTRATION PURPOSES ONLY!\nTHE EXACTNESS IS NOT GUARANTEED!")
}