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Step 1: Put message on blockchain beforehand with exact date/time and characteristics of DDoS

Step 2: Execute DDoS

Step 3: Prove to others you are responsible by using private key

There’s (as ever) no need for a blockchain, people do this with twitter and sha256 all the time. Hash the message, post the hash, wait for prediction to happen, post the full message.

Any examples of major predictions verified in this way?

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