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Cap the random additional stake of a block to 1/2 the current stake difficulty

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miketout
2018-10-08 17:20:31 -07:00
parent c2dc091e40
commit 051af72cbd
1 changed files with 3 additions and 1 deletions
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4
src/pow.cpp
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@@ -485,7 +485,9 @@ CChainPower GetBlockProof(const CBlockIndex& block)
// as the nonce has a fixed definition for a POS block, add the random amount of "work" from the nonce, so there will // as the nonce has a fixed definition for a POS block, add the random amount of "work" from the nonce, so there will
// statistically always be a deterministic winner in POS // statistically always be a deterministic winner in POS
arith_uint256 aNonce; arith_uint256 aNonce;
aNonce = UintToArith256(block.nNonce);
// random amount of additional stake added is capped to 1/2 the current stake target
aNonce = UintToArith256(block.nNonce) | (bnStakeTarget << (uint64_t)1);
// We need to compute 2**256 / (bnTarget+1), but we can't represent 2**256 // We need to compute 2**256 / (bnTarget+1), but we can't represent 2**256
// as it's too large for a arith_uint256. However, as 2**256 is at least as large // as it's too large for a arith_uint256. However, as 2**256 is at least as large