  At the beginning of 2018, there is a growing belief that blockchain
technologies constitute a revolutionary innovation in how we transfer value
electronically. In that vein, blockchain may be a suitable complement to
ontologies to achieve a big part of the vision of the semantic Web by Tim
Berners-Lee. We believe that if this complementarity is to be achieved
blockchain and ontologies must co-evolve. In this paper, we focus on what and
how to engineer models, methods, designs, and implementations for this
co-evolution. As a first step in this co-evolution, we propose a conceptual
design of a governance ontology represented as meta-data tags to be embedded
and instantiated in a smart contract at the blockchain protocol level. We
develop this design by examining and analyzing smart contracts from the
infamous The DAO experiment on the Ethereum blockchain. We believe there are
two contributions of this paper: it serves to inform and implore the blockchain
and ontology communities to recognize and collaborate with each other; and it
outlines a roadmap for engineering artifacts to bridge the gap between
blockchain community focus on protocol-level blockchain interoperability and
the ontology community focus on semantic-level interoperability.
