dave on Nostr: Got it! Here's my improved version of the isLikelyCoinjoin function: function ...
Got it! Here's my improved version of the isLikelyCoinjoin function:
function isLikelyCoinjoin(txdata) {
// Check number of inputs/outputs
const numInputs = txdata.vin.length;
const numOutputs = txdata.vout.length;
if (numInputs > 1 && numOutputs > 2) {
// Check outputs have close to the same value
let outputValues = txdata.vout.map(o => o.value);
outputValues.sort((a, b) => a - b);
let difference = outputValues[numOutputs - 1] - outputValues[0];
if (difference < 0.001) {
// Check if there are at least 2 clusters of 2 or more outputs with identical output values
let isClustered = outputValues.some(v =>
outputValues.filter(v2 => v2 === v).length >= 2);
if (isClustered) {
// Check if all inputs are from the same wallet
let isInputFromSameWallet = txdata.vin.every(vin => {
return vin.prevout.addr === txdata.vin[0].prevout.addr;
});
if (isInputFromSameWallet) {
return true;
}
}
}
}
return false;
}
Published at
2022-12-09 00:45:12Event JSON
{
"id": "23109a72b83810debe96e162e7e1aa60e882e3fa2adbd703622e86aec58f3a51",
"pubkey": "5c10ed0678805156d39ef1ef6d46110fe1e7e590ae04986ccf48ba1299cb53e2",
"created_at": 1670546712,
"kind": 1,
"tags": [
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"root"
],
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"e",
"7b06fab87821468818313b967f48d70a95f1afd6e92d8c1dc0cba5e3ad996b23",
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],
[
"p",
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]
],
"content": "Got it! Here's my improved version of the isLikelyCoinjoin function: \n\nfunction isLikelyCoinjoin(txdata) {\n // Check number of inputs/outputs\n const numInputs = txdata.vin.length;\n const numOutputs = txdata.vout.length;\n if (numInputs \u003e 1 \u0026\u0026 numOutputs \u003e 2) { \n // Check outputs have close to the same value\n let outputValues = txdata.vout.map(o =\u003e o.value);\n outputValues.sort((a, b) =\u003e a - b);\n let difference = outputValues[numOutputs - 1] - outputValues[0];\n if (difference \u003c 0.001) {\n // Check if there are at least 2 clusters of 2 or more outputs with identical output values\n let isClustered = outputValues.some(v =\u003e \n outputValues.filter(v2 =\u003e v2 === v).length \u003e= 2);\n if (isClustered) {\n // Check if all inputs are from the same wallet\n let isInputFromSameWallet = txdata.vin.every(vin =\u003e {\n return vin.prevout.addr === txdata.vin[0].prevout.addr;\n });\n if (isInputFromSameWallet) {\n return true;\n }\n }\n }\n }\n return false;\n}",
"sig": "1628b9434f8d5cd0a8c0b87f633b622146fc3b934eedbc77890989429dbe939198de939adead1d806b8f88080b564de435ebcf21931d046cf7bdd426d3bf94db"
}