Remove difficulty adjustment calculation lag in the backend
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@ -24,7 +24,6 @@ export function calcDifficultyAdjustment(
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network: string,
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latestBlockTimestamp: number,
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): DifficultyAdjustment {
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const ESTIMATE_LAG_BLOCKS = 146; // For first 7.2% of epoch, don't estimate.
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const EPOCH_BLOCK_LENGTH = 2016; // Bitcoin mainnet
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const BLOCK_SECONDS_TARGET = 600; // Bitcoin mainnet
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const TESTNET_MAX_BLOCK_SECONDS = 1200; // Bitcoin testnet
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@ -38,17 +37,15 @@ export function calcDifficultyAdjustment(
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let difficultyChange = 0;
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let timeAvgSecs = blocksInEpoch ? diffSeconds / blocksInEpoch : BLOCK_SECONDS_TARGET;
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// Only calculate the estimate once we have 7.2% of blocks in current epoch
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if (blocksInEpoch >= ESTIMATE_LAG_BLOCKS) {
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difficultyChange = (BLOCK_SECONDS_TARGET / timeAvgSecs - 1) * 100;
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// Max increase is x4 (+300%)
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if (difficultyChange > 300) {
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difficultyChange = 300;
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}
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// Max decrease is /4 (-75%)
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if (difficultyChange < -75) {
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difficultyChange = -75;
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}
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difficultyChange = (BLOCK_SECONDS_TARGET / timeAvgSecs - 1) * 100;
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// Max increase is x4 (+300%)
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if (difficultyChange > 300) {
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difficultyChange = 300;
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}
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// Max decrease is /4 (-75%)
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if (difficultyChange < -75) {
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difficultyChange = -75;
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}
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// Testnet difficulty is set to 1 after 20 minutes of no blocks,
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