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Listen to native speakers pronounce “penned” in real conversational contexts with synchronized timestamps and subtitles.
And with the blockchain in a similar way, obviously, technology that is about 10 years old now, since 2009 and the first white paper thatwas penned by Satoshi Nakamoto, the founder of Bitcoin.But only in the last three years or so has blockchain technology been kind of started to be used for-- you know, applied to other uses.
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