Public key (hex):
All Factom chain entries using Factom Robot have a digital signature. The signature proves the entry was made by Factom Robot. We use the Sodium library to sign & verify entries.
Entry content signed with a private key using function
Any entry's digital signature is specified as the first external id
Entry content verified with the public key using function
The public key is specified as the first external id of Factom Robot's entry chain