[Ethereum] Block explorer running on private network

I don't know of any block explorer source code / application you can deploy into your private network.

Here's my scripts to check and print blocks, uncles and transactions that can be used to explore blocks in your private network.

I've listed them separately for easier reading. If you intend to use it in geth, you would probably want to concatenate the following 5 functions into a single file for easy copy-pasting into the geth console.

printTransaction(txHash)

function printTransaction(txHash) {
  var tx = eth.getTransaction(txHash);
  if (tx != null) {
    console.log("  tx hash          : " + tx.hash + "\n"
      + "   nonce           : " + tx.nonce + "\n"
      + "   blockHash       : " + tx.blockHash + "\n"
      + "   blockNumber     : " + tx.blockNumber + "\n"
      + "   transactionIndex: " + tx.transactionIndex + "\n"
      + "   from            : " + tx.from + "\n" 
      + "   to              : " + tx.to + "\n"
      + "   value           : " + tx.value + "\n"
      + "   gasPrice        : " + tx.gasPrice + "\n"
      + "   gas             : " + tx.gas + "\n"
      + "   input           : " + tx.input);
  }
}

printBlock(block)

function printBlock(block) {
  console.log("Block number     : " + block.number + "\n"
    + " hash            : " + block.hash + "\n"
    + " parentHash      : " + block.parentHash + "\n"
    + " nonce           : " + block.nonce + "\n"
    + " sha3Uncles      : " + block.sha3Uncles + "\n"
    + " logsBloom       : " + block.logsBloom + "\n"
    + " transactionsRoot: " + block.transactionsRoot + "\n"
    + " stateRoot       : " + block.stateRoot + "\n"
    + " miner           : " + block.miner + "\n"
    + " difficulty      : " + block.difficulty + "\n"
    + " totalDifficulty : " + block.totalDifficulty + "\n"
    + " extraData       : " + block.extraData + "\n"
    + " size            : " + block.size + "\n"
    + " gasLimit        : " + block.gasLimit + "\n"
    + " gasUsed         : " + block.gasUsed + "\n"
    + " timestamp       : " + block.timestamp + "\n"
    + " transactions    : " + block.transactions + "\n"
    + " uncles          : " + block.uncles);
    if (block.transactions != null) {
      console.log("--- transactions ---");
      block.transactions.forEach( function(e) {
        printTransaction(e);
      })
    }
}

printUncle(block, uncleNumber, uncle)

function printUncle(block, uncleNumber, uncle) {
  console.log("Block number     : " + block.number + " , uncle position: " + uncleNumber + "\n"
    + " Uncle number    : " + uncle.number + "\n"
    + " hash            : " + uncle.hash + "\n"
    + " parentHash      : " + uncle.parentHash + "\n"
    + " nonce           : " + uncle.nonce + "\n"
    + " sha3Uncles      : " + uncle.sha3Uncles + "\n"
    + " logsBloom       : " + uncle.logsBloom + "\n"
    + " transactionsRoot: " + uncle.transactionsRoot + "\n"
    + " stateRoot       : " + uncle.stateRoot + "\n"
    + " miner           : " + uncle.miner + "\n"
    + " difficulty      : " + uncle.difficulty + "\n"
    + " totalDifficulty : " + uncle.totalDifficulty + "\n"
    + " extraData       : " + uncle.extraData + "\n"
    + " size            : " + uncle.size + "\n"
    + " gasLimit        : " + uncle.gasLimit + "\n"
    + " gasUsed         : " + uncle.gasUsed + "\n"
    + " timestamp       : " + uncle.timestamp + "\n"
    + " transactions    : " + uncle.transactions + "\n");
}

getMinedBlocks(miner, startBlockNumber, endBlockNumber)

If startBlockNumber is not specified, it will default to the last 10,000 blocks. This takes some time to scan, so reduce this number to 1000 to reduce the scanning time.

If endBlockNumber is not specified, it will default to the latest block number.

function getMinedBlocks(miner, startBlockNumber, endBlockNumber) {
  if (endBlockNumber == null) {
    endBlockNumber = eth.blockNumber;
    console.log("Using endBlockNumber: " + endBlockNumber);
  }
  if (startBlockNumber == null) {
    startBlockNumber = endBlockNumber - 10000;
    console.log("Using startBlockNumber: " + startBlockNumber);
  }
  console.log("Searching for miner \"" + miner + "\" within blocks "  + startBlockNumber + " and " + endBlockNumber + "\"");

  for (var i = startBlockNumber; i <= endBlockNumber; i++) {
    if (i % 1000 == 0) {
      console.log("Searching block " + i);
    }
    var block = eth.getBlock(i);
    if (block != null) {
      if (block.miner == miner || miner == "*") {
        console.log("Found block " + block.number);
        printBlock(block);
      }
      if (block.uncles != null) {
        for (var j = 0; j < 2; j++) {
          var uncle = eth.getUncle(i, j);
          if (uncle != null) {
            if (uncle.miner == miner || miner == "*") {
              console.log("Found uncle " + block.number + " uncle " + j);
              printUncle(block, j, uncle);
            }
          }          
        }
      }
    }
  }
}

getMyMinedBlocks(startBlockNumber, endBlockNumber)

function getMyMinedBlocks(startBlockNumber, endBlockNumber) {
  getMinedBlocks(eth.accounts[0], startBlockNumber, endBlockNumber);
}

Examples For Using The Function Above

Here are some examples of using the above functions on the public mainnet Ethereum network.

• Print block mined by "0x52bc44d5378309ee2abf1539bf71de1b7d7be3b5". See https://etherscan.io/block/1325630

  getMinedBlocks("0x52bc44d5378309ee2abf1539bf71de1b7d7be3b5", 1325620, 1325640);
  

  with the output being:

  getMinedBlocks("0x52bc44d5378309ee2abf1539bf71de1b7d7be3b5", 1325620, 1325640);
  Searching for miner "0x52bc44d5378309ee2abf1539bf71de1b7d7be3b5" within blocks 1325620 and 1325640"
  Found block 1325622
  Block number     : 1325622
   hash            : 0x06cdfceefb706514defc44a0bee28341bbb03e241a8bf8963d4c26b8a37f4309
   parentHash      : 0x2b29abc7a8cf63b40d33d8fcc6871d33e1ac1b7858d752d02f35b506981c15e3
   nonce           : 0x4f3215d189a40d32
   sha3Uncles      : 0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347
   logsBloom       : 0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
   transactionsRoot: 0xb7f7547bd977d3d8db65a1565035414c01058a82645cdde4b4bc00ceba0f8482
   stateRoot       : 0x10444688147ecdd6c838482141aa9d95af4816563faf05a8c6d8c0028abbb040
   miner           : 0x52bc44d5378309ee2abf1539bf71de1b7d7be3b5
   difficulty      : 26590795561548
   totalDifficulty : 13344340377114708239
   extraData       : 0xd783010305844765746887676f312e342e32856c696e7578
   size            : 770
   gasLimit        : 4712388
   gasUsed         : 42000
   timestamp       : 1460501661
   transactions    : 0x0fba1db5d970e41aa4c7b496631eb0a3dbaf2de46c7b27fda7800ed0145c609a,0x7891df53455629cfed4240f9c8a18a1657abfc088d47a1a89a51fc8ac339a2b1
   uncles          : 
  --- transactions ---
    tx hash          : 0x0fba1db5d970e41aa4c7b496631eb0a3dbaf2de46c7b27fda7800ed0145c609a
     nonce           : 23443
     blockHash       : 0x06cdfceefb706514defc44a0bee28341bbb03e241a8bf8963d4c26b8a37f4309
     blockNumber     : 1325622
     transactionIndex: 0
     from            : 0xea674fdde714fd979de3edf0f56aa9716b898ec8
     to              : 0x77d4d32435d57cbd99afd8ff4c9a58e0302e0675
     value           : 1503349049188321300
     gasPrice        : 20000000000
     gas             : 90000
     input           : 0x
    tx hash          : 0x7891df53455629cfed4240f9c8a18a1657abfc088d47a1a89a51fc8ac339a2b1
     nonce           : 23444
     blockHash       : 0x06cdfceefb706514defc44a0bee28341bbb03e241a8bf8963d4c26b8a37f4309
     blockNumber     : 1325622
     ...
  

• Print block with uncles mined by "0x4bb96091ee9d802ed039c4d1a5f6216f90f81b01". See https://etherscan.io/block/1325635

  getMinedBlocks("0x4bb96091ee9d802ed039c4d1a5f6216f90f81b01", 1325630, 1325640);
  

• Print block with uncles. See https://etherscan.io/block/907703

  getMinedBlocks("*", 907703, 907703);
  

• Print blocks my miner has mined between blocks 1321603 and 1321605

  getMyMinedBlocks(1321603, 1321605);