Distributed database that maintains a continuously-growing list of ordered records called blocks

Building the minimum viable block chain

Building for the blockchain

How the Bitcoin protocol actually works

The original Bitcoin white paper

Bitcoin in full node

the original blockchain article:

Eli5

Ethereum is Doomed

Stackexchange: how the bitcoin blockchain works: BTC101 mastering bitcoin

How Bitcoin Works Under the Hood (video):

HN discussion

• Banking - Thought machine:Vault OS

• Payments and money transfers - Abra

• Cybersecurity - Guardtime

• Authenticating educational documents - Holberton, Bitproof

• Voting - Follow my vote

• Car leasing and sales - Visa/DocuSign

• Networking and IoT - CoinDesk // see Blockchain and IoT 2018 white paper

• Forecasting - Augur

• Online music - PeerTracks, Mycelia, Ujo music

• Ride sharing - La’Zooz

• Stock trading - Chain

• Real estate - Ubitquity

• Insurance - Stratumn, Lemonway

• Healthcare - Gem, Thierion, MedRec, Philips

• Supply Chain Management, Contracts - Provenance, Fluent, Skuchain

• Cloud storage - Storj

• Energy management - Transactive Grid

• Sports management - Jet coins

• Gift cards and loyalty programs

• Government and public benefits - GovCoins

• Gun tracking

• Wills ad inheritances

• Retail

• Charity - BitGive Foundation

• Law Enforcement

• Human Resources

• Ride Hailing - Arcade city

• News - Civil

• Waste management - Waltonchain

• Border control - [Essentia]90

• Sia, Blockchain-based file storage

• Bitmain, ASIC miner