Spanish police authorities are raising the alarm because a recent criminal case involved the use of bitcoin ATMs, making their jobs more difficult.
Telefonica is set to trial a decentralized data marketplace that lets users sell their personal information.
Spain's main conservative party submitted a proposal encouraging the government to adopt blockchain technology in managing public services.
A pilot test was successfully conducted for a Spanish-backed blockchain project to increase the efficiency of registering issuances.
The plan is to incentivize solar power generation by circumventing rules inhibiting its adoption made by Madrid.
Spanish central bank governor Luis Maria Linde believes cryptocurrencies are dangerous, but is open to blockchain technology.
The move comes after the Spanish finance ministry called the use of cryptocurrencies in organized crime a "pressing challenge."
Spain's ruling political party is reportedly drafting legislation that it hopes will help woo cryptocurrency and blockchain companies to the country.
Alastria, formerly known as Red Lyra, is a Spanish blockchain consortium that has grown to more than 70 members since its launch in May.
A group of Spanish banks, law firms and corporations have formed a new blockchain consortium.