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F2Pool Returns Paxos Overpayment in Historic Bitcoin Mining Fee Incident

An investigation into an unprecedented overpayment incident reveals insights into the robustness and fairness of the Bitcoin mining network

by BiTux
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An Unprecedented Event in Bitcoin Mining

The world of Bitcoin mining witnessed an unusual event in September 2023 when Bitcoin mining pool F2Pool found itself embroiled in an overpayment incident. In what turned into a highly-discussed matter amongst the Bitcoin community, F2Pool received a staggering 19.8 BTC worth $520,000 from Paxos, a reputable crypto services firm, as mining fees for a transaction just amounting to $2,000. Under normal circumstances, Bitcoin mining fees do not exceed $20 per transaction.

Given the unusual magnitude of the fee, the incident immediately caught the attention of F2Pool. After conducting identity verification checks, F2Pool confirmed Paxos as the sender of the BTC. F2Pool proceeded to return the entire sum back to Paxos, in so doing presenting a compelling case for the honesty and robustness of the Bitcoin mining network.

Puzzling Origins of the Transaction Error

Paxos acknowledged their error in due course, revealing that the overpayment was a result of a bug on their corporate operations front. On closer analysis, Jameson Lopp, co-founder of Casa Hodl and an early Bitcoin developer, speculated that the bug may have stemmed from a miscalculation related to the change output within either an exchange or payment processor address software.

Coinciding with Lopp’s analysis, Paxos stated that the inflated mining fee was specific to a single transfer made on September 10, 2023. Unfortunately, this particular bug led to an erroneous fee of over 19 BTC, making it the largest transaction fee ever recorded in the history of the Bitcoin blockchain.

The Response from the Bitcoin Community

The response from the Bitcoin community in the aftermath of this incident has been generally positive. Stake.fish founder Chun Wang expressed regret for initially agreeing to the refund. However, overriding this sentiment was the realization of the inherent fairness in the Bitcoin mining network. Many users lauded the cooperative nature of the network and praised F2Pool for demonstrating the community’s commitment to rectifying errors and fostering trust amongst users.

In the aftermath of the incident, Paxos is ensuring its customers that their funds remain safe and secure. The company is also taking steps to rectify the software bug and prevent a similar occurrence in the future.


1. What is a Bitcoin mining fee?

A Bitcoin mining fee is a reward that miners receive upon confirming a transaction on the Bitcoin blockchain. It incentivizes miners to keep adding to the blockchain. In most cases, users can set their own transaction fees, which can influence the speed at which their transaction is processed.

2. How is the Bitcoin network responding to this incident?

The Bitcoin network has responded positively to the incident, applauding F2Pool’s honesty and integrity in returning the overpaid fees to Paxos. This incident has reinforced the community’s trust in the network’s cooperative nature and fairness.

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