How to explain blockchain in terms of OSI 7-layer model? Is it based on service in the transport layer I am newbie to block chain. AFAIK, blockchain is a distributed database that maintains a continuously-growing list of records called blocks secured from tampering and revision.

How does this technology be explained in terms of OSI 7 layer model?

Thx

JT
The blockchain is a data structure that every node in the network independently builds, based on messages that are exchanged in a network.

Blockchains don't prescribe what this network protocol looks like. The OSI model is a way to describe layers in a network, not data structures.