<a href="https:&#x2F;&#x2F;www.stellar.org&#x2F;blog&#x2F;stellar-consensus-protocol-proof-code&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.stellar.org&#x2F;blog&#x2F;stellar-consensus-protocol-proo...</a> ?<p>But seriously, &quot;OBC currently offers two implementations of PBFT (Practical Byzantine Fault Tolerant) consensus, as a means to validate transactions&quot;.