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ABOUT
・SPIN : https://spin-project.org/
・SPIN開発秘話:https://prtimes.jp/story/detail/ErQk9DIX6RB
・LOCAL LETTER:https://localletter.jp/articles/spin_freewill/
・SOCIAL INNOVATION ACADEMY:
http://www.socialinnovationacademy.eu/blockchain-for-social-impact-increasing-trust-and-security-in-social-projects/