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  "map_content": "In Bitcoin, a 0-conf transaction is not \"asking random strangers whether someone is a fraudster.\" It is receiving a signed transaction and determining whether it conflicts with any known transaction spending the same inputs. The relevant parties are the miners and their mempools, not the public at large.\r\nEven on BTC today, block production is concentrated among a small number of mining entities. The number of economically significant miners is tiny. If a merchant or payment processor wanted additional assurance, they could query mining nodes directly. You're not polling millions of people. You're querying a small set of known participants. The network latency involved is measured in milliseconds.\r\nThe cowboy-town analogy also implies that silence means acceptance. That is not how transaction propagation works. A transaction is propagated, validated against consensus rules, and checked for conflicts. The question is not \"is this person trustworthy?\" The question is \"has anyone seen a conflicting spend?\"\r\nA more accurate analogy would be:\r\n> Someone presents a cheque. Before accepting it, the merchant calls the dozen clearing houses that actually process cheques and asks whether they have already seen another cheque drawn against the same funds. If none have, the merchant proceeds.\r\nWhether one accepts the risk of 0-conf for a particular transaction value is a separate economic question. But portraying the process as shouting into a crowd of strangers demonstrates a misunderstanding of how transaction propagation and miner observation work.\r\nThe core error is treating Bitcoin as though consensus depends on asking a large anonymous population. In practice, the relevant information is held by a relatively small number of mining entities, and communicating with them is trivial from a technical standpoint. If someone thinks contacting a dozen or so miners is an insurmountable problem, they are describing a network that exists in their imagination, not the one that actually operates.\r\nWritten by S. Tominaga",
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