This identity bind is the result of solving a cryptographic artifact linked to the Liber Primus.

Bitcoin Address (Identity Anchor):
1GoQywCr6fQzZL2WP7JypKibGYEH69VwUb

Bitcoin Signature (BIP-137 / Satoshi-format, over the exact bytes of the PGP public key block below):
H4+x73BRYbHltGsQxdyLVZdtiOS8wCPxiQhH+fnQ/OIIcVXVxKOEpc0YAbDFSOGW+19awNT6f6+QjmzPlSjGFbA=

PGP Public Key (Ed25519, fingerprint: 5B6D62336A235253C87E4357D631325AB6240AFE):

-----BEGIN PGP PUBLIC KEY BLOCK-----

mDMEaheHmRYJKwYBBAHaRw8BAQdAdC4FnIWozFvjGd7nHwiY5zA6nY8fWVB+B5AD
J5Hy29q0E0xpYmVyIFByaW11cyBTb2x2ZXKIkwQTFgoAOxYhBFttYjNqI1JTyH5D
V9YxMlq2JAr+BQJqF4eZAhsDBQsJCAcCAiICBhUKCQgLAgQWAgMBAh4HAheAAAoJ
ENYxMlq2JAr+fUgA/R50157mBPkwiwnFkI+Uo4Fo+ACpX1cPRAaTGMCC3vM9AQCy
VuBcqQ86k9heAcvfsFVcRvrYAdeyqxfyXBdxKLl1ALg4BGoXh5kSCisGAQQBl1UB
BQEBB0AqWbqtFPfNkg5nmAElZlyfsu3zW7ryZdFxR5T9DVQNOAMBCAeIeAQYFgoA
IBYhBFttYjNqI1JTyH5DV9YxMlq2JAr+BQJqF4eZAhsMAAoJENYxMlq2JAr+GTgB
ALKG74LzGcJN9dpeFxOCqco2dSuXR5mMVEPki2cBK1eNAQDVs0JVvO1fSUXfSwgN
snjvHcUz9QVpq8oDgj+SOfHHCA==
=d0l5
-----END PGP PUBLIC KEY BLOCK-----

Verification:
Anyone can verify this bind using Electrum (Tools -> Verify message), bx message-validate,
or any BIP-137-compatible tool.

1. Address:   1GoQywCr6fQzZL2WP7JypKibGYEH69VwUb
2. Message:   the exact bytes of the PGP public key block above. Take every line from
              -----BEGIN PGP PUBLIC KEY BLOCK-----
              through
              -----END PGP PUBLIC KEY BLOCK-----
              inclusive, including the blank line after BEGIN and the trailing newline
              after END. Do not add or remove whitespace. SHA-256 of the message must be:
              f13e52442ea2211e1403949e996eb2f3b4d61c0dbee50eb7a98ee2564eb7afd8
3. Signature: H4+x73BRYbHltGsQxdyLVZdtiOS8wCPxiQhH+fnQ/OIIcVXVxKOEpc0YAbDFSOGW+19awNT6f6+QjmzPlSjGFbA=

Expected result: TRUE - signature recovers to address 1GoQywCr6fQzZL2WP7JypKibGYEH69VwUb.

From now on, this PGP key is the only authorized recipient for further communication.