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monerov-explorer

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The source code for the monerovexplorer.com website

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최종 버전 다운로드 (.zip)

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# MoneroV Explorer

The source code used for the [monerovexplorer.com](https://monerovexplorer.com) website. An implementation of a MoneroV blockchain explorer.
Currently connected to the upcoming monerov daemon and showcases the MoneroV 1:10 blockchain ratio diffrence for all previous and
live transactions on Monero mainnet.

## MoneroV Blockchain Explorer Features

- no javascript, no cookies, no web analytics trackers, no images,
 - open sourced,
 - made fully in C++,
 - showing encrypted payments ID,
 - showing ring signatures,
 - showing transaction extra field,
 - showing public components of MoneroV addresses,
 - decoding which outputs and mixins belong to the given MoneroV address and viewkey,
 - can prove that you sent MoneroV (XMV) to someone,
 - detailed information about mixins, such as, mixins'
 age, timescale, mixin of mixins,
 - showing number of amount output indices,
 - tx checker and pusher for online pushing of transactions,
 - estimate possible spendings based on address and viewkey,
 - can provide total amount of all miner fees.
 - decoding encrypted payment id.

## Compilation on Ubuntu 16.04 (Will only be available When the monerov daemon is released to the public)

##### Compile latest MoneroV release v0.1

Download and compile recent MoneroV into your home folder:

```bash
# first install monerov's dependecines
sudo apt update

sudo apt install git build-essential cmake libboost-all-dev miniupnpc libunbound-dev graphviz doxygen libunwind8-dev pkg-config libssl-dev libcurl4-openssl-dev libgtest-dev libreadline-dev libzmq3-dev

# go to home folder 
cd ~

# clone the monerov daemon (when it's publicly available)
git clone https://github.com/monerov/monerov

cd monerov/

make
```

##### Compile and run the explorer

Once MoneroV compiles, the explorer can be downloaded and compiled
as follows:

```bash
# go to home folder if you're still in ~/monerov
cd ~

# download the source code
git clone https://github.com/monerov/monerov-explorer.git

# enter the downloaded sourced code folder
cd monerov-explorer

# make a build folder and enter it
mkdir build && cd build

# create the makefile
cmake ..

# altearnatively can use: cmake -DMONERO_DIR=/path/to/monerov_folder .. 
# if monerov is not in ~/monerov

# compile
make
```

When compilation finishes executable `xmrblocks` should be created. Before running
please make sure that  `~/Downloads` folder exists and is writable. 
Time zone library that explorer is using, puts there 
its database of time zone offsets

To run it:
```
./xmrblocks
```

By default it will look for blockchain in its default location i.e., `~/.monerov/lmdb`.
You can use `--bc-path` option if its in different location. 
Example output:

```bash
[instanceme@monerov monerov-explorer]$ ./xmrblocks
2016-May-28 10:04:49.160280 Blockchain initialized. last block: 1056761, d0.h0.m12.s47 time ago, current difficulty: 1517857750
(2016-05-28 02:04:49) [INFO    ] Crow/0.1 server is running, local port 8081
```

Go to your browser: http://127.0.0.1:8081

## The explorer's command line options

```
xmrblocks, MoneroV Blockchain Explorer:
  -h [ --help ] [=arg(=1)] (=0)         produce help message
  -t [ --testnet ] [=arg(=1)] (=0)      use testnet blockchain
  --enable-pusher [=arg(=1)] (=0)       enable signed transaction pusher
  --enable-mixin-details [=arg(=1)] (=0)
                                        enable mixin details for key images, 
                                        e.g., timescale, mixin of mixins, in tx
                                        context
  --enable-key-image-checker [=arg(=1)] (=0)
                                        enable key images file checker
  --enable-output-key-checker [=arg(=1)] (=0)
                                        enable outputs key file checker
  --enable-json-api arg (=1)            enable JSON REST api
  --enable-tx-cache [=arg(=1)] (=0)     enable caching of transaction details
  --show-cache-times [=arg(=1)] (=0)    show times of getting data from cache 
                                        vs no cache
  --enable-block-cache [=arg(=1)] (=0)  enable caching of block details
  --enable-autorefresh-option [=arg(=1)] (=0)
                                        enable users to have the index page on 
                                        autorefresh
  --enable-emission-monitor [=arg(=1)] (=0)
                                        enable MoneroV total emission monitoring
                                        thread
  -p [ --port ] arg (=8081)             default explorer port
  --testnet-url arg                     you can specify testnet url, if you run
                                        it on mainnet. link will show on front 
                                        page to testnet explorer
  --mainnet-url arg                     you can specify mainnet url, if you run
                                        it on testnet. link will show on front 
                                        page to mainnet explorer
  --no-blocks-on-index arg (=10)        number of last blocks to be shown on 
                                        index page
  --mempool-info-timeout arg (=5000)    maximum time, in milliseconds, to wait 
                                        for mempool data for the front page
  --mempool-refresh-time arg (=5)       time, in seconds, for each refresh of 
                                        mempool state
  -b [ --bc-path ] arg                  path to lmdb folder of the blockchain, 
                                        e.g., ~/.monerov/lmdb
  --ssl-crt-file arg                    path to crt file for ssl (https) 
                                        functionality
  --ssl-key-file arg                    path to key file for ssl (https) 
                                        functionality
  -d [ --deamon-url ] arg (=http:://127.0.0.1:18081)
                                        MoneroV deamon url
```

Example usage, defined as bash aliases.

```bash
# for mainnet explorer
alias xmrblocksmainnet='~/monerov-explorer/build/xmrblocks    --port 8081 --testnet-url "http://122.112.5.45:8082" --enable-pusher --enable-emission-monitor'

# for testnet explorer
alias xmrblockstestnet='~/monerov-explorer/build/xmrblocks -t --port 8082 --mainnet-url "http://122.112.5.45:8081" --enable-pusher --enable-emission-monitor'
```

## Enable MoneroV emission

Obtaining current MoneroV emission amount is not straight forward. Thus, by default it is 
disabled. To enable it use `--enable-emission-monitor` flag, e.g.,

```bash
xmrblocks --enable-emission-monitor 
```

This flag will enable emission monitoring thread. When started, the thread
 will initially scan the entire blockchain, and calculate the cumulative emission based on each block.
Since it is a separate thread, the explorer will work as usual during this time. 
Every 10000 blocks, the thread will save current emission in a file, by default, 
 in `~/.monerov/lmdb/emission_amount.txt`. For testnet network, 
 it is `~/.monerov/testnet/lmdb/emission_amount.txt`. This file is used so that we don't
 need to rescan entire blockchain whenever the explorer is restarted. When the 
 explorer restarts, the thread will first check if `~/.monerov/lmdb/emission_amount.txt`
 is present, read its values, and continue from there if possible. Subsequently, only the initial
 use of the tread is time consuming. Once the thread scans the entire blockchain, it updates
 the emission amount using new blocks as they come. Since the explorer writes this file, there can
 be only one instance of it running for mainnet and testnet. Thus, for example, you cant have 
 two explorers for mainnet
 running at the same time, as they will be trying to write and read the same file at the same time,
 leading to unexpected results. Off course having one instance for mainnet and one instance for testnet
 is fine, as they write to different files.
 
 When the emission monitor is enabled, information about current emission of coinbase and fees is 
 displayed on the front page, e.g., :
 
```
MoneroV emission (fees) is 144855404.30 (525453.73) as of 1313448 block
```

The values given, can be checked using MoneroV daemon's  `print_coinbase_tx_sum` command. 
For example, for the above example: `print_coinbase_tx_sum 0 1313449`.
 
To disable the monitor, simply restart the explorer without `--enable-emission-monitor` flag. 
    
## Enable SSL (https)

By default, the explorer does not use ssl. But it has such a functionality.

As an example, you can generate your own ssl certificates as follows:

```bash
cd /tmp # example folder
openssl genrsa -out server.key 1024
openssl req -new -key server.key -out server.csr
openssl x509 -req -days 3650 -in server.csr -signkey server.key -out server.crt
```

Having the `crt` and `key` files, run `xmrblocks` in the following way:

```bash
./xmrblocks --ssl-crt-file=/tmp/server.crt --ssl-key-file=/tmp/server.key 
```

Note: Because we generated our own certificate, modern browsers will complain
about it as they cant verify the signatures against any third party. So probably
for any practical use need to have properly issued ssl certificates.

## JSON API

The explorer has JSON api. For the API, it uses conventions defined by [JSend](https://labs.omniti.com/labs/jsend).

#### api/transaction/<tx_hash>

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/transaction/6093260dbe79fd6277694d14789dc8718f1bd54457df8bab338c2efa3bb0f03d"
```

Partial results shown:

```json
{
  "data": {
    "block_height": 1268252,
    "coinbase": false,
    "confirmations": 1,
    "current_height": 1268253,
    "extra": "01be23e277aed6b5f41f66b05244bf994c13108347366ec678ae16657f0fc3a22b",
    "inputs": [
      {
        "amount": 0,
        "key_image": "67838fd0ffd79f13e735830d3ec60412aed59e53e1f997feb6f73d088b949611",
        "mixins": [
          {
            "block_no": 1238623,
            "public_key": "0a5b853c55303c10e1326acfb085b9e246e088b1ccac7e37f7a810d46a28a914"
          },
          {
            "block_no": 1246942,
            "public_key": "527cf86f5abbfb006c970f7c6eb40493786d4751306f8985c6a43f98a88c0dff"
          }
        ]
      }
    ],
    "mixin": 9,
    "outputs": [
      {
        "amount": 0,
        "public_key": "525779873776e4a42f517fd79b72e7c31c3ba03e730fc32287f6414fb702c1d7"
      },
      {
        "amount": 0,
        "public_key": "e25f00fceb77af841d780b68647618812695b4ca6ebe338faba6e077f758ac30"
      }
    ],
    "payment_id": "",
    "payment_id8": "",
    "rct_type": 1,
    "timestamp": 1489753456,
    "timestamp_utc": "2017-03-17 12:24:16",
    "tx_fee": 12517785574,
    "tx_hash": "6093260dbe79fd6277694d14789dc8718f1bd54457df8bab338c2efa3bb0f03d",
    "tx_size": 13323,
    "tx_version": 2,
    "xmr_inputs": 0,
    "xmr_outputs": 0
  },
  "status": "success"
}
```

#### api/transactions

Transactions in last 25 blocks

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/transactions"
```

Partial results shown:

```json
{
  "data": {
    "blocks": [
      {
        "age": "33:16:49:53",
        "height": 1268252,
        "size": 105390000000000000,
        "timestamp": 1489753456,
        "timestamp_utc": "2017-03-17 12:24:16",
        "txs": [
          {
            "coinbase": true,
            "mixin": 0,
            "outputs": 8491554678365,
            "rct_type": 0,
            "tx_fee": 0,
            "tx_hash": "7c4286f64544568265bb5418df84ae69afaa3567749210e46f8340c247f4803f",
            "tx_size": 151000000000000,
            "tx_version": 2
          },
          {
            "coinbase": false,
            "mixin": 5,
            "outputs": 0,
            "rct_type": 2,
            "tx_fee": 17882516700,
            "tx_hash": "2bfbccb918ee5f050808dd040ce03943b7315b81788e9cdee59cf86b557ba48c",
            "tx_size": 19586000000000000,
            "tx_version": 2
          }
        ]
      }
    ],
    "limit": 25,
    "page": 0
  },
  "status": "success"
}
```

#### api/transactions?page=<page_no>&limit=<tx_per_page>

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/transactions?page=2&limit=10"
```

Result analogical to the one above.

#### api/block/<block_number|block_hash>

```bash
curl  -w "\n" -X GET "http://122.112.5.45:8081/api/block/1293257"
```

Partial results shown:

```json
{
  "data": {
    "block_height": 1293257,
    "block_reward": 0,
    "current_height": 1293264,
    "hash": "9ef6bb8f9b8bd253fc6390e5c2cdc45c8ee99fad16447437108bf301fe6bd6e1",
    "size": 141244,
    "timestamp": 1492761974,
    "timestamp_utc": "2017-04-21 08:06:14",
    "txs": [
      {
        "coinbase": true,
        "extra": "018ae9560eb85d5ebd22d3beaed55c21d469eab430c5e3cac61b3fe2f5ad156770020800000001a9030800",
        "mixin": 0,
        "payment_id": "",
        "payment_id8": "",
        "rct_type": 0,
        "tx_fee": 0,
        "tx_hash": "3ff71b65bec34c9261e01a856e6a03594cf0472acf6b77db3f17ebd18eaa30bf",
        "tx_size": 95,
        "tx_version": 2,
        "xmr_inputs": 0,
        "xmr_outputs": 8025365394426
      }
    ]
  },
  "status": "success"
}
```

#### api/mempool

Return all txs in the mempool.

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/mempool"
```

Partial results shown:

```json
{
  "data": {
    "limit": 100000000,
    "page": 0,
    "total_page_no": 0,
    "txs": [
      {
        "coinbase": false,
        "extra": "022100325f677d96f94155a4840a84d8e0c905f7a4697a25744633bcb438feb1e51fb2012eda81bf552c53c2168f4130dbe0265c3a7898f3a7eee7c1fed955a778167b5d",
        "mixin": 3,
        "payment_id": "325f677d96f94155a4840a84d8e0c905f7a4697a25744633bcb438feb1e51fb2",
        "payment_id8": "",
        "rct_type": 2,
        "timestamp": 1494470894,
        "timestamp_utc": "2017-05-11 02:48:14",
        "tx_fee": 15894840000,
        "tx_hash": "9f3374f8ac67febaab153eab297937a3d0d2c706601e496bf5028146da0c9aef",
        "tx_size": 13291,
        "tx_version": 2,
        "xmr_inputs": 0,
        "xmr_outputs": 0
      }
    ],
    "txs_no": 7
  },
  "status": "success"
}
```

Limit of 100000000 is just default value above to ensure that all mempool txs are fetched
if no specific limit given.

#### api/mempool?limit=<no_of_top_txs>

Return number of newest mempool txs, e.g., only 10.

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/mempool?limit=10"
```

Result analogical to the one above.

#### api/search/<block_number|tx_hash|block_hash>

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/search/1293669"
```

Partial results shown:

```json
{
  "data": {
    "block_height": 1293669,
    "current_height": 1293670,
    "hash": "5d55b8fabf85b0b4c959d66ad509eb92ddfe5c2b0e84e1760abcb090195c1913",
    "size": 118026,
    "timestamp": 1492815321,
    "timestamp_utc": "2017-04-21 22:55:21",
    "title": "block",
    "txs": [
      {
        "coinbase": true,
        "extra": "01cb7fda09033a5fa06dc601b9295ef3790397cf3c645e958e34cf7ab699d2f5230208000000027f030200",
        "mixin": 0,
        "payment_id": "",
        "payment_id8": "",
        "rct_type": 0,
        "tx_fee": 0,
        "tx_hash": "479ba432f5c88736b438dd4446a11a13046a752d469f7828151f5c5b86be4e9a",
        "tx_size": 95,
        "tx_version": 2,
        "xmr_inputs": 0,
        "xmr_outputs": 7992697599717
      }
    ]
  },
  "status": "success"
}
```

#### api/outputs?txhash=<tx_hash>&address=<address>&viewkey=<viewkey>&txprove=<0|1>

For `txprove=0` we check which outputs belong to given address and corresponding viewkey.
For `txprove=1` we use to prove to the recipient that we sent them founds.
For this, we use recipient's address and our tx private key as a viewkey value,
 i.e., `viewkey=<tx_private_key>`

Checking outputs:

```bash
# we use here official MoneroV project's donation address as an example
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/outputs?txhash=17049bc5f2d9fbca1ce8dae443bbbbed2fc02f1ee003ffdd0571996905faa831&address=48kFo9fecQEW3Vz9XdpncuKrjNyKZSF5gLHAjmcoxmevJXBJB5EpV5b5SXf9EPyqGjVLziJVNvcAE93MEwMUzTicSfSqWrh&viewkey=f983431075708155cc3d92a32b75a7d02a5dcf27756707b47a2b31b21c389990&txprove=0"
```

```json
{
  "data": {
    "address": "42f18fc61586554095b0799b5c4b6f00cdeb26a93b20540d366932c6001617b75db35109fbba7d5f275fef4b9c49e0cc1c84b219ec6ff652fda54f89f7f63c88",
    "outputs": [
      {
        "amount": 34980000000000,
        "match": true,
        "output_idx": 0,
        "output_pubkey": "35d7200229e725c2bce0da3a2f20ef0720d242ecf88bfcb71eff2025c2501fdb"
      },
      {
        "amount": 0,
        "match": false,
        "output_idx": 1,
        "output_pubkey": "44efccab9f9b42e83c12da7988785d6c4eb3ec6e7aa2ae1234e2f0f7cb9ed6dd"
      }
    ],
    "tx_hash": "17049bc5f2d9fbca1ce8dae443bbbbed2fc02f1ee003ffdd0571996905faa831",
    "tx_prove": false,
    "viewkey": "f359631075708155cc3d92a32b75a7d02a5dcf27756707b47a2b31b21c389501"
  },
  "status": "success"
}
```

Proving transfer:

We use recipient's address (i.e. not our address from which we sent xmr to recipient).
For the viewkey, we use `tx_private_key` (although the GET variable is still called `viewkey`) that we obtained by sending this txs.

```bash
# this is for testnet transaction 
curl  -w "\n" -X GET "http://127.0.0.1:8082/api/outputs?txhash=94782a8c0aa8d8768afa0c040ef0544b63eb5148ca971a024ac402cad313d3b3&address=9wUf8UcPUtb2huK7RphBw5PFCyKosKxqtGxbcKBDnzTCPrdNfJjLjtuht87zhTgsffCB21qmjxjj18Pw7cBnRctcKHrUB7N&viewkey=e94b5bfc599d2f741d6f07e3ab2a83f915e96fb374dfb2cd3dbe730e34ecb40b&txprove=1"
```

```json
{
  "data": {
    "address": "71bef5945b70bc0a31dbbe6cd0bd5884fe694bbfd18fff5f68f709438554fb88a51b1291e378e2f46a0155108782c242cc1be78af229242c36d4f4d1c4f72da2",
    "outputs": [
      {
        "amount": 1000000000000,
        "match": true,
        "output_idx": 0,
        "output_pubkey": "c1bf4dd020b5f0ab70bd672d2f9e800ea7b8ab108b080825c1d6cfc0b7f7ee00"
      },
      {
        "amount": 0,
        "match": false,
        "output_idx": 1,
        "output_pubkey": "8c61fae6ada2a103565dfdd307c7145b2479ddb1dab1eaadfa6c34db65d189d5"
      }
    ],
    "tx_hash": "94782a8c0aa8d8768afa0c040ef0544b63eb5148ca971a024ac402cad313d3b3",
    "tx_prove": true,
    "viewkey": "e94b5bfc599d2f741d6f07e3ab2a83f915e96fb374dfb2cd3dbe730e34ecb40b"
  },
  "status": "success"
}
```

Result analogical to the one above.

#### api/networkinfo

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/networkinfo"
```

```json
{
  "data": {
    "alt_blocks_count": 0,
    "block_size_limit": 600000,
    "cumulative_difficulty": 2091549555696348,
    "difficulty": 7941560081,
    "fee_per_kb": 303970000,
    "grey_peerlist_size": 4991,
    "hash_rate": 66179667,
    "height": 1310423,
    "incoming_connections_count": 0,
    "outgoing_connections_count": 5,
    "start_time": 1494822692,
    "status": "OK",
    "target": 120,
    "target_height": 0,
    "testnet": false,
    "top_block_hash": "76f9e85d62415312758bc09e0b9b48fd2b005231ad1eee435a8081e551203f82",
    "tx_count": 1219048,
    "tx_pool_size": 2,
    "white_peerlist_size": 1000
  },
  "status": "success"
}
```

#### api/outputsblocks

Search for our outputs in last few blocks (up to 5 blocks), using provided address and viewkey.

```bash
# testnet address
curl  -w "\n" -X GET http://127.0.0.1:8081/api/outputsblocks?address=9sDyNU82ih1gdhDgrqHbEcfSDFASjFgxL9B9v5f1AytFUrYsVEj7bD9Pyx5Sw2qLk8HgGdFM8qj5DNecqGhm24Ce6QwEGDi&viewkey=807079280293998634d66e745562edaaca45c0a75c8290603578b54e9397e90a&limit=5&mempool=1
```

Example result:

```json
{
{
  "data": {
    "address": "0182d5be0f708cecf2b6f9889738bde5c930fad846d5b530e021afd1ae7e24a687ad50af3a5d38896655669079ad0163b4a369f6c852cc816dace5fc7792b72f",
    "height": 960526,
    "limit": "5",
    "mempool": true,
    "outputs": [
      {
        "amount": 33000000000000,
        "block_no": 0,
        "in_mempool": true,
        "output_idx": 1,
        "output_pubkey": "2417b24fc99b2cbd9459278b532b37f15eab6b09bbfc44f9d17e15cd25d5b44f",
        "payment_id": "",
        "tx_hash": "9233708004c51d15f44e86ac1a3b99582ed2bede4aaac6e2dd71424a9147b06f"
      },
      {
        "amount": 2000000000000,
        "block_no": 960525,
        "in_mempool": false,
        "output_idx": 0,
        "output_pubkey": "9984101f5471dda461f091962f1f970b122d4469077aed6b978a910dc3ed4576",
        "payment_id": "0000000000000055",
        "tx_hash": "37825d0feb2e96cd10fa9ec0b990ac2e97d2648c0f23e4f7d68d2298996acefd"
      },
      {
        "amount": 96947454120000,
        "block_no": 960525,
        "in_mempool": false,
        "output_idx": 1,
        "output_pubkey": "e4bded8e2a9ec4d41682a34d0a37596ec62742b28e74b897fcc00a47fcaa8629",
        "payment_id": "0000000000000000000000000000000000000000000000000000000000001234",
        "tx_hash": "4fad5f2bdb6dbd7efc2ce7efa3dd20edbd2a91640ce35e54c6887f0ee5a1a679"
      }
    ],
    "viewkey": "807079280293998634d66e745562edaaca45c0a75c8290603578b54e9397e90a"
  },
  "status": "success"
}
```

#### api/emission

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/emission"
```

```json
{
  "data": {
    "blk_no": 1313969,
    "coinbase": 14489473877253413000,
    "fee": 52601974988641130
  },
  "status": "success"
}
```

Emission only works when the emission monitoring thread is enabled.

#### api/version

```bash
curl  -w "\n" -X GET "http://127.0.0.1:8081/api/version"
```

```json
{
  "data": {
    "api": 65536, 
    "blockchain_height": 1357031,
    "git_branch_name": "update_to_current_monero",
    "last_git_commit_date": "2017-07-25",
    "last_git_commit_hash": "a549f25",
    "monero_version_full": "0.10.3.1-ab594cfe"
  },
  "status": "success"
}
```

api number is store as `uint32_t`. In this case `65536` represents 
major version 1 and minor version 0.
In JavaScript to get these numbers, one can do as follows:

```javascript
var api_major = response.data.api >> 16;
var api_minor = response.data.api & 0xffff;
```

#### api/rawblock/<block_number|block_hash>

Return raw json block data, as represented in MoneroV.

```bash
curl  -w "\n" -X GET "http://122.112.5.45:8081/api/rawblock/1293257"
```

Example result not shown.

#### api/rawtransaction/<tx_hash>

Return raw json tx data, as represented in MoneroV.

```bash
curl  -w "\n" -X GET "http://122.112.5.45:8081/api/rawtransaction/6093260dbe79fd6277694d14789dc8718f1bd54457df8bab338c2efa3bb0f03d"
```

Example result not shown.

## Contribute

Code contributions are always welocme. Simply fork and issue a pull request.

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