Foresight News|Aug 07, 2026 12:33
**[Farside Insights: Some Miners Supporting BIP-110 Allegedly Embedding Non-Standard Junk Transactions via Out-of-Band Relay Networks]**
Foresight News reports that Farside Insights has published an article claiming that miners marked as supporting BIP-110 are embedding non-standard junk transactions in the blocks they mine through out-of-band relay networks. The account cited two suspicious transactions as examples, sized 10KB and 38.5KB, both mined by the currently dominant BIP-110 miner "Roughnecks." However, these transactions were not found on mempool.space or in expected block templates and were flagged as "extra transactions" on the miningpool.observer website operated by @0xB10C.
Farside Insights stated that it used the `bitcoin-cli` command `invalidateblock` to trace back the relevant blocks and performed `testmempoolaccept` tests on the involved transactions. The results indicated that these transactions were not allowed, confirming that they were non-standard and not relayed according to Bitcoin Core's standardization rules. Based on this, the account speculated that there might be individuals within the "Roughnecks" mining pool dissatisfied with the stance on BIP-110, who are using out-of-band relay systems to inject non-standard junk transactions into blocks.
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