Miner Returns 7,626 ETH Wrongly Paid by Bitfinex

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A monstrous network fee has been refunded by an Ethereum miner following an erroneous transaction by the DeversiFi decentralized exchange.

On Sept 27 a spurious transaction was noted with an extraordinarily high network fee by the DeversiFi team. A user connected with a hardware wallet paid a whopping 7,676 ETH, or around $23 million at the time, in gas according to Etherscan.  

The Bitfinex-powered DEX paid the gas fee for the transaction which was for the transfer of $100,000 in Tether. DeversiFi, which recently bridged to Polygon, pledged to investigate the incident assuring users that no funds have been affected and that this was an erroneous transaction.

A benevolent miner

Bitfinex chief technology officer, Paolo Ardoino, reassured users that the issue will be taken care of, by the company itself, if all else failed.

“No user will be affected. Deversifi already confirmed that they will take care of it. And worst case scenario Finex will take care of it with it’s company funds. No user will be affected whatsoever.”

Fortunately for the user, and Bitfinex’s bottom line, the miner agreed to refund almost all of the ETH mistakenly spent on the gas fee on Sept 28. DeversiFi reported that the miner had agreed to return the ETH, adding that a post mortem of the incident would be forthcoming.

“Thank you to the miner of block 13307440 who we can confirm is returning 7626 ETH that were incorrectly paid today as a tx fee.”

Members of the crypto community questioned the discrepancy in the amount returned pointing out that the miner kept 50 ETH, or around $150,000.

Many also questioned Ethereum’s high transaction fees which have skyrocketed yet again and may have been a factor in the mistaken transaction fee.

Ethereum gas fees spike again

According to BitInfoCharts, the average Ethereum transaction fee has surged to $45. This is the highest fees have been since Sept 9 when gas prices were falling from their second-highest prices ever.

Etherscan’s gas tracker is reporting a whopping $74 for making a token swap on Uniswap and even more for carrying out complex smart contract operations.

The only good news to come out of it is that the ETH burn rate is currently at 5 ETH per minute according to Ultrasound.Money. The fee-burning tracker is reporting that 382,172 ETH, or roughly $1.12 billion, has been burnt since the London upgrade launched in early August.


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Martin has been covering the latest developments on cyber security and infotech for two decades. He has previous trading experience and has been actively covering the blockchain and crypto industry since 2017.

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