“Unable to be changed”. Data stored in a blockchain system is unable to be changed after it is written/solved (not even by administrators).

Initial Coin Offering (ICO)

A public, crowdfunded sale of cryptocurrency tokens to raise money for a project.

Initial Token Offering (ITO)

Initial Token Offerings are similar to ICOs (initial coin offerings), but different in that not every blockchain project that is tokenized has developed a new coin.

Intentional Fork

Helps to reverse and repair the damages related to hacking or a catastrophic bug on a blockchain.


Distribution protocol that started as an open source project at Interplanetary Networks. The p2p method of storing and sharing hypermedia in a distributed file system aims to help applications run faster, safer, and more transparently. IPFS allows objects to be exchanged and interact without a single point of failure. IPFS creates trustless node interrelations.