Wright Decoded

There is a lengthy offering of proof of Satoshi on Dr. Wright's blog. The narrative is mostly tutorial, but also the following.

Proof of the ability to base64 encode a phrase.

IFdyaWdodCwgaXQgaXMgbm90IHRoZSBzYW1lIGFzIGlmIEkgc2lnbiBDcmFpZyBXcmlnaHQsIFNh 
dG9zaGkuCgo=

$ bx base64-decode IFdyaWdodCwgaXQgaXMgbm90IHRoZSBzYW1lIGFzIGlmIEkgc2lnbiBDcmFpZyBXcmlnaHQsIFNhdG9zaGkuCgo=

Wright, it is not the same as if I sign Craig Wright, Satoshi.

Proof of the ability to base64 encode arbitrary blockchain data.

------------------------- Signature File -------------------------
MEUCIQDBKn1Uly8m0UyzETObUSL4wYdBfd4ejvtoQfVcNCIK4AIgZmMsXNQWHvo6KDd2Tu6euEl1
3VTC3ihl6XUlhcU+fM4=
------------------------- End Signature --------------------------

$ bx base64-decode MEUCIQDBKn1Uly8m0UyzETObUSL4wYdBfd4ejvtoQfVcNCIK4AIgZmMsXNQWHvo6KDd2Tu6euEl13VTC3ihl6XUlhcU+fM4= | bx base16-encode

3045022100c12a7d54972f26d14cb311339b5122f8c187417dde1e8efb6841f55c34220ae0022066632c5cd4161efa3a2837764eee9eb84975dd54c2de2865e9752585c53e7cce

The data is extracted from the following transaction.

$ bx fetch-tx 828ef3b079f9c23829c56fe86e85b4a69d9e06e5b54ea597eef5fb3ffef509fe

Notice transaction.inputs.input.script matches decoding above (excluding the trailing 01 signature hash type byte).

transaction
{
    hash 828ef3b079f9c23829c56fe86e85b4a69d9e06e5b54ea597eef5fb3ffef509fe
    inputs
    {
        input
        {
            previous_output
            {
                hash 12b5633bad1f9c167d523ad1aa1947b2732a865bf5414eab2f9e5ae5d5c191ba
                index 1
            }
            script "[ 3045022100c12a7d54972f26d14cb311339b5122f8c187417dde1e8efb6841f55c34220ae0022066632c5cd4161efa3a2837764eee9eb84975dd54c2de2865e9752585c53e7cce01 ]"
            sequence 4294967295
        }
    }
    lock_time 0
    outputs
    {
        output
        {
            address 1ByLSV2gLRcuqUmfdYcpPQH8Npm8cccsFg
            script "[ 04bed827d37474beffb37efe533701ac1f7c600957a4487be8b371346f016826ee6f57ba30d88a472a0e4ecd2f07599a795f1f01de78d791b382e65ee1c58b4508 ] checksig"
            value 1000000000
        }
        output
        {
            address 12cbQLTFMXRnSzktFkuoG3eHoMeFtpTu3S
            script "[ 0411db93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3 ] checksig"
            value 1800000000
        }
    }
    version 1
}

Proof of possession of a public key.

The command to export our public key is given below.
openssl ec -in sn-pub.pem -pubin -text -noout
        0411db93e1dcdb8a016b49840f8c53
        bc1eb68a382e97b1482ecad7b148a6
        909a5cb2e0eaddfb84ccf9744464f8
        2e160bfa9b8b64f9d4c03f999b8643
        f656b412a3

$ bx sha256 0411db93e1dcdb8a016b49840f8c53bc1eb68a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf9744464f82e160bfa9b8b64f9d4c03f999b8643f656b412a3 | bx ripemd160

11b366edfc0a8b66feebae5c2e25a7b6a5d1cf31

$ bx address-encode 11b366edfc0a8b66feebae5c2e25a7b6a5d1cf31 --version 0

12cbQLTFMXRnSzktFkuoG3eHoMeFtpTu3S

$ bx fetch-history 12cbQLTFMXRnSzktFkuoG3eHoMeFtpTu3S

Notice transfers.transfer[3].received.hash is the same as transaction.hash above.

transfers
{
    transfer
    {
        received
        {
            hash 5d607ae88c2caf1329e758ccb1eb8a359f6df434ee84e03b9e14cea300a85f97
            height 409857
            index 0
        }
        value 66600
    }
    transfer
    {
        received
        {
            hash 20fb69a94413637cb50f65e473f91d2599a04d5a0bf9bf6a5e9e843df2710ea4
            height 228208
            index 0
        }
        value 30000
    }
    transfer
    {
        received
        {
            hash 1554a02d4eb1c7a73e3736922ed99530e360784e709896c42e5756e65b2da341
            height 220151
            index 2
        }
        value 1
    }
    transfer
    {
        received
        {
            hash 828ef3b079f9c23829c56fe86e85b4a69d9e06e5b54ea597eef5fb3ffef509fe
            height 248
            index 1
        }
        value 1800000000
    }
    transfer
    {
        received
        {
            hash 12b5633bad1f9c167d523ad1aa1947b2732a865bf5414eab2f9e5ae5d5c191ba
            height 183
            index 1
        }
        value 2800000000
    }
    transfer
    {
        received
        {
            hash 591e91f809d716912ca1d4a9295e70c3e78bab077683f79350f101da64588073
            height 182
            index 1
        }
        value 2900000000
    }
    transfer
    {
        received
        {
            hash a16f3ce4dd5deb92d98ef5cf8afeaf0775ebca408f708b2146c4fb42b41e14be
            height 181
            index 1
        }
        value 3000000000
    }
    transfer
    {
        received
        {
            hash f4184fc596403b9d638783cf57adfe4c75c605f6356fbc91338530e9831e9e16
            height 170
            index 1
        }
        value 4000000000
    }
    transfer
    {
        received
        {
            hash 0437cd7f8525ceed2324359c2d0ba26006d92d856a9c20fa0241106ee5a597c9
            height 9
            index 0
        }
        value 5000000000
    }
}