Glossary
ERC-20
ERC20 tokens are fungible tokens on Ethereum. More Detail. Each contract supports a tokens from an approved list.
Immutability
A synonym for unchangeable. Usually in regard to data on a blockchain which cannot be update or deleted once written.
Subscriber
In the context of subscriptions a subscriber is the person paying the regular transaction.
Provider
In the context of subscriptions the provider is user receinging the regular transaction.
Caller
The Caller is the name given to user to calls the contract at its regular timely interval.