Does anyone know which if any wallet supports connecting to multiple SPV nodes to form consensus of honest nodes, and also has the ability to check for double-spend attempts before a confirmation is received?
I've always thought the best way to implement SPV wallets was to query, for example 20 nodes. Half of which are pre-determined well known nodes of miners, exchanges, payment providers, block explorers etc. The other half of nodes being a random selection of geographically-diverse nodes on the network. After which a consensus is formed on which nodes are honest by comparing the data returned of the majority (for example 80% of) nodes to ensure integrity.
Further, since Bitcoin Unlimited is merging double-spend relaying - are there any wallets which are able to alert on detection of double-spend attempts within a certain configurable time-frame, for example 30 seconds, automatically triggered after upon receiving a transaction?
Thanks!
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source https://www.reddit.com/r/btc/comments/96j0m8/wallet_software_that_queries_multiple_spv_nodes/
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