I wrote a small introduction paper about Blockchain, if someone interested, including to revise the text here it is:

I wrote a small introduction paper about Blockchain, if someone interested, including to revise the text here it is:
https://www.magnumlabs.com.br/blockchain-with-introduction-and-object-pascal-overview/
The intention was not to dig a lot but to present the concept.
https://www.magnumlabs.com.br/blockchain-with-introduction-and-object-pascal-overview/