@bruces Not sure if you've gotten to this already, but I saw this as a promoted ad and thought of spime's. I wonder how often spime's are going to be used to convince people things are ethically sourced when they probably aren't
Sourcing with confidence: how #blockchain is aiming to ethically source cobalt. Meet #IBM at #HM19 to learn more about the initiative. https://ibm.co/2WHMK50 pic.twitter.com/RnHz99baHI
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