golang-github-google-trillian-dev 1.6.0-3 (ppc64el binary) in ubuntu oracular

 Trillian is an implementation of the concepts described in the
 Verifiable Data Structures (/docs/papers/VerifiableDataStructures.pdf)
 white paper, which in turn is an extension and generalisation of the
 ideas which underpin Certificate Transparency (https://certificate-
 transparency.org).
 .
 Trillian implements a Merkle tree
 (https://en.wikipedia.org/wiki/Merkle_tree) whose contents are served
 from a data storage layer, to allow scalability to extremely large
 trees. On top of this Merkle tree, Trillian provides the following:
 .
  * An append-only **Log** mode, analogous to the original
    Certificate Transparency (https://certificate-transparency.org) logs.
    In this mode, the Merkle tree is effectively filled up from the left,
    giving a *dense* Merkle tree.
 .
 Certificate Transparency (CT) (https://tools.ietf.org/html/rfc6962) is
 the most well-known and widely deployed transparency application, and an
 implementation of CT as a Trillian personality is available in the
 certificate-transparency-go repo (https://github.com/google/certificate-
 transparency-go/blob/master/trillian).
 .
 This package contains a stripped down library for use by rekor.