How are people being paid--and in what spendable currency--that payment via smartphone is secure against device theft?
How @PlasticBank is using #blockchain to help clear the plastic choking our oceans: https://ibm.co/2u9WqId #socialplasticpic.twitter.com/zrECkOMXby
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Get paid
@Littercoin for mapping and producing open geospatial data on#plasticpollution anywhere @ http://openlittermap.com#GeoBlockchain https://youtu.be/my7Cx-kZhT4 pic.twitter.com/BY5TN8hpID
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