110 leadig zero bits on Algorand's SumHash-512

sumhash0.go

//  sumhash0.go
//  2022-06-18  Markku-Juhani O. saarinen <mjos@mjos.fi>

//  === A sumhash-512 with 110 leading zero bits (from left)

/*
input = AA4F827EE71BF78B816E767A24B271AD046A3C52DA8B25EAB2D59A86C8B93F02FB73184B74A5F8F227FD1500000000
H(x) = 000000000000000000000000000385D978E7FF3D3239DB4F1C357EA40940EAB592F34AEC646DED668859B622341566A838B566490E2AC71DBA89B067E647FC31
*/

package main

import (
    "encoding/hex"
    "fmt"
    "github.com/algorand/go-sumhash"
)

func main() {

    //  fixed 47-byte input
    x,_ := hex.DecodeString("AA4F827EE71BF78B816E767A24B271AD" +
                            "046A3C52DA8B25EAB2D59A86C8B93F02" +
                            "FB73184B74A5F8F227FD1500000000")
    fmt.Printf("input = %X\n", x)

    //  call sumhash
    h := sumhash.New512(nil)
    _, _ = h.Write(x)
    sum := h.Sum(nil)

    //  print the result
    fmt.Printf("H(x) = %X\n", sum)
}