A Phone Call From SEC Pressures ICO Startup to Close Operations and Refund (news.bitcoin.com)

According to a blog post from a blockchain-based organization called Protostarr, the company had a recent phone call with the U.S. Securities and Exchange Commission (SEC) and had to shut its token sale operations down. Further, the startup plans to refund its investors by sending the ethereum funds raised back to the original addresses.
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bititytuy rrttt Transaction refund address 1

In mistec second time I have sent 99,330 b to bitcoin address: 15qMMPEa4M26XX4KqXxrvD5yjNwfETg3Hx via transaction id:0a5c7ea12bd84b1dfeea4972d6415c28d6846d83c5fb00f56cf4f6d20c05f4da

Please purchase in power 4236 RUPEES but i not givan power so 99,330 b so, i have refund

I HAVE SECOND TIME TRANFER FOR PURCHASEING POWER IN SAME BITCOIN ADDRESS

HOW TO Refund?

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Claim or Refund Functionality Implementation in Bitcoin

I was reading the paper written by Kuramesan and Bentov with title “How to use Bitcoin to Design Fair Protocols”. Source: https://eprint.iacr.org/2014/129.pdf Specifically, the sender creates a transaction which can be redeemed the following way: 1) By providing the Sender’s signature AND the Receiver’s signature 2) By Receiver’s signature and a witness/proof which will make a circuit/function valid

Whichever of the conditions comes claims the transaction. My problem in understanding is what this circuit/function should be. Can it a random secret chosen by so if we pass through a hash function that is the circuit it can easily be verified since the receiver has to reveal this secret through it’s claim transaction? Is my assumption correct?

Recent Questions – Bitcoin Stack Exchange