Examples of org.ethereum.mine.Miner.mine()

org.ethereum.mine.Miner.mine()
Adds a nonce to given block which complies with the given difficulty For the PoC series, we use a simplified proof-of-work. This is not ASIC resistant and is meant merely as a placeholder. It utilizes the bare SHA3 hash function to secure the block chain by requiring the SHA3 hash of the concatenation of the nonce and the header’s SHA3 hash to be sufficiently low. It is formally defined as PoW: PoW(H, n) ≡ BE(SHA3(SHA3(RLP(H!n)) ◦ n)) where: RLP(H!n) is the RLP encoding of the block header H, not including the final nonce component; SHA3 is the SHA3 hash function accepting an arbitrary length series of bytes and evaluating to a series of 32 bytes (i.e. 256-bit); n is the nonce, a series of 32 bytes; o is the series concatenation operator; BE(X) evaluates to the value equal to X when interpreted as a big-endian-encoded integer. @param newBlock without a valid nonce @param difficulty - the mining difficulty @return true if valid nonce has been added to the block

        Block block = new Block(blockRaw);
        Block newBlock = MinerThread.createBlock(block, coinbase);
        newBlock.setStateRoot(Hex.decode("43bb67bea1931eca8f9e06f9cca66a9f9914cc3e3d4e9ceb2e08e58ab9f92bab"));


        Miner miner = new Miner();
        miner.mine(newBlock, newBlock.getDifficulty());


        System.out.println(newBlock);


        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      Block block = createBlock(null);
      assertEquals(rlpWithoutNonce, Hex.toHexString(block.getEncodedWithoutNonce()));
      System.out.println("Searching for nonce of following block: \n" + block.toString());
      
      Miner miner = new Miner();
      boolean mined = miner.mine(block, block.getDifficulty());
      assertTrue(mined);
      boolean valid = block.validateNonce();
      assertTrue(valid);
      
      // expectedHash is the actual hash from block#32 in PoC5 chain based on nonce below

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            logger.info("Minning on block: [{}] ", block.getNumber());
//            assertEquals(rlpWithoutNonce, Hex.toHexString(block.getEncodedWithoutNonce()));
//            System.out.println("Searching for nonce of following block: \n" + block.toString());


            Miner miner = new Miner();
            boolean mined = miner.mine(block, block.getDifficulty());
            assertTrue(mined);
            boolean valid = block.validateNonce();
            assertTrue(valid);
            logger.info("found nonce: [{}]", Hex.toHexString(block.getNonce()));

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            logger.info("found nonce: [{}]", Hex.toHexString(block.getNonce()));


            while(true){


                Block newBlock = createBlock(block);
                mined = miner.mine(newBlock, newBlock.getDifficulty());
                assertTrue(mined);
                valid = newBlock.validateNonce();
                assertTrue(valid);
                block = newBlock;
                logger.info("found nonce: [{}]", Hex.toHexString(newBlock.getNonce()));

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