RT: An author used to prove they owned the copyright to their work by sending themselves a copy of their manuscript. The postmark serves as "proof" that they were the original writer. Now you can use blockchain to prove you own your writing online.
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RT：一位作者过去常常通过向自己发送一份手稿副本来证明他们拥有其作品的版权。邮戳作为他们是原作者的“证据”。现在您可以使用区块链来证明您拥有自己的在线作品。
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