The Bitcoin was conceived as an electronic decentralised system for capital transactions. Each node (user) had the same opportunities to get a reward when validating a transaction. In the last years, this system has triggered in a competitive struggle in which computing power is the most important variable for earning Bitcoins. This involves the use of large equipment, computers farms spending physical and environmental resources. A dispute that benefits only the owner of the most powerful and efficient technology.
The Bitcoin mining process consists of finding a random number called “Nonce”, which added to the Headerblock and through a Hash function returns a number (hash value) that if starts with a sufficient number of zeros (difficulty) can be validated by the Blockchain network. When this number is found a reward of 12.5 Bitcoins = 43000€ (Aug 2017) is earned by the miner.
Participants will build a BitCoin of Things (BoT) miner combining a Wi-Fi microcontroller and different sensors such as an accelerometer, microphones or buttons, generating a “Nonce” from its reads try to validate all the Blockchain pending transactions. The possibilities are lower, but it decreases the use of energy of the calculation processes making it more sustainable. Finally, the microcontroller is attached to daily life objects, like keyboards, computer mice or salt-shakers, by using them the object can potentially generate a big number of Bitcoins, playing with the idea of finding the philosopher’s stone.