Entropy pool
In ansible community, I found a term called: Entropy Pool. You can think about blockchain being a kind of entropy pool. One can also think of knowledge containers or history scripts as entropy pools.
An entropy pool is a network of causations, or an inventory/reserve of resources, encoded/measured in terms of entropy.
Entropy pool is considered to be a place to derive randomness for system security. Therefore, it is a kind of resource, and one may use different tools to get more or less of this resource[1]