text: var Decimal = require("decimal.js");
  Decimal8 = Decimal.clone({ precision:8, rounding:8 });
  
  var currencyUnits = [
  	{
  		type:"native",
  		name:"BTC",
  		multiplier:1,
  		default:true,
  		values:["", "btc", "BTC"],
  		decimalPlaces:8
  	},
  	{
  		type:"native",
  		name:"mBTC",
  		multiplier:1000,
  		values:["mbtc"],
  		decimalPlaces:5
  	},
  	{
  		type:"native",
  		name:"bits",
  		multiplier:1000000,
  		values:["bits"],
  		decimalPlaces:2
  	},
  	{
  		type:"native",
  		name:"sat",
  		multiplier:100000000,
  		values:["sat", "satoshi"],
  		decimalPlaces:0
  	},
  	{
  		type:"exchanged",
  		name:"USD",
  		multiplier:"usd",
  		values:["usd"],
  		decimalPlaces:2,
  		symbol:"$"
  	},
  	{
  		type:"exchanged",
  		name:"EUR",
  		multiplier:"eur",
  		values:["eur"],
  		decimalPlaces:2,
  		symbol:"€"
  	},
  ];
  
  module.exports = {
  	name:"Bitcoin",
  	ticker:"BTC",
  	logoUrl:"/img/logo/btc.svg",
  	siteTitle:"Bitcoin Explorer",
  	siteDescriptionHtml:"<b>BTC Explorer</b> is <a href='https://github.com/horizontalsystems/block-explorer). If you run your own [Bitcoin Full Node](https://bitcoin.org/en/full-node), **BTC Explorer** can easily run alongside it, communicating via RPC calls. See the project [ReadMe](https://github.com/horizontalsystems/block-explorer) for a list of features and instructions for running.",
  	nodeTitle:"Bitcoin Full Node",
  	nodeUrl:"https://bitcoin.org/en/full-node",
  	demoSiteUrl: "https://btc.chaintools.io",
  	miningPoolsConfigUrls:[
  		"https://raw.githubusercontent.com/btccom/Blockchain-Known-Pools/master/pools.json",
  		"https://raw.githubusercontent.com/blockchain/Blockchain-Known-Pools/master/pools.json"
  	],
  	maxBlockWeight: 4000000,
  	targetBlockTimeSeconds: 600,
  	currencyUnits:currencyUnits,
  	currencyUnitsByName:{"BTC":currencyUnits[0], "mBTC":currencyUnits[1], "bits":currencyUnits[2], "sat":currencyUnits[3]},
  	baseCurrencyUnit:currencyUnits[3],
  	defaultCurrencyUnit:currencyUnits[0],
  	feeSatoshiPerByteBucketMaxima: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 50, 75, 100, 150],
  	genesisBlockHash: "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
  	genesisCoinbaseTransactionId: "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
  	genesisCoinbaseTransaction: {
  		"hex": "01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0804ffff001d02fd04ffffffff0100f2052a01000000434104f5eeb2b10c944c6b9fbcfff94c35bdeecd93df977882babc7f3a2cf7f5c81d3b09a68db7f0e04f21de5d4230e75e6dbe7ad16eefe0d4325a62067dc6f369446aac00000000",
  		"txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
  		"hash": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
  		"size": 204,
  		"vsize": 204,
  		"version": 1,
  		"confirmations":475000,
  		"vin": [
  			{
  				"coinbase": "04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73",
  				"sequence": 4294967295
  			}
  		],
  		"vout": [
  			{
  				"value": 50,
  				"n": 0,
  				"scriptPubKey": {
  					"asm": "04f5eeb2b10c944c6b9fbcfff94c35bdeecd93df977882babc7f3a2cf7f5c81d3b09a68db7f0e04f21de5d4230e75e6dbe7ad16eefe0d4325a62067dc6f369446a OP_CHECKSIG",
  					"hex": "4104f5eeb2b10c944c6b9fbcfff94c35bdeecd93df977882babc7f3a2cf7f5c81d3b09a68db7f0e04f21de5d4230e75e6dbe7ad16eefe0d4325a62067dc6f369446aac",
  					"reqSigs": 1,
  					"type": "pubkey",
  					"addresses": [
  						"1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa"
  					]
  				}
  			}
  		],
  		"blockhash": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
  		"time": 1230988505,
  		"blocktime": 1230988505
  	},
  	genesisCoinbaseOutputAddressScripthash:"8b01df4e368ea28f8dc0423bcf7a4923e3a12d307c875e47a0cfbf90b5c39161",
  	historicalData: [
  		{
  			type: "blockheight",
  			date: "2009-01-03",
  			blockHeight: 0,
  			blockHash: "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
  			summary: "The Bitcoin Genesis Block.",
  			alertBodyHtml: "This is the first block in the Bitcoin blockchain, known as the 'Genesis Block'. This block was mined by Bitcoin's creator Satoshi Nakamoto. You can read more about <a href='https://en.bitcoin.it/wiki/Genesis_block'>the genesis block</a>.",
  			referenceUrl: "https://en.bitcoin.it/wiki/Genesis_block"
  		},
  		{
  			type: "tx",
  			date: "2009-01-03",
  			txid: "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
  			summary: "The coinbase transaction of the Genesis Block.",
  			alertBodyHtml: "This transaction doesn't really exist! This is the coinbase transaction of the <a href='/block/000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f'>Bitcoin Genesis Block</a>. For more background about this special-case transaction, you can read <a href='https://github.com/bitcoin/bitcoin/issues/3303'>this brief discussion</a> among some of the <a href='https://bitcoin.org'>Bitcoin</a> developers.",
  			referenceUrl: "https://github.com/bitcoin/bitcoin/issues/3303"
  		},
  		{
  			type: "tx",
  			date: "2009-10-12",
  			txid: "7dff938918f07619abd38e4510890396b1cef4fbeca154fb7aafba8843295ea2",
  			summary: "First bitcoin traded for fiat currency.",
  			alertBodyHtml: "In this first-known BTC-to-fiat transaction, 5,050 BTC were exchanged for 5.02 USD, at an effective exchange rate of ~0.001 USD/BTC.",
  			referenceUrl: "https://twitter.com/marttimalmi/status/423455561703624704"
  		},
  		{
  			type: "blockheight",
  			date: "2017-08-24",
  			blockHeight: 481824,
  			blockHash: "0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893",
  			summary: "First SegWit block.",
  			referenceUrl: "https://twitter.com/conio/status/900722226911219712"
  		},
  		{
  			type: "tx",
  			date: "2017-08-24",
  			txid: "8f907925d2ebe48765103e6845C06f1f2bb77c6adc1cc002865865eb5cfd5c1c",
  			summary: "First SegWit transaction.",
  			referenceUrl: "https://twitter.com/KHS9NE/status/900553902923362304"
  		},
  		{
  			type: "tx",
  			date: "2014-06-16",
  			txid: "143a3d7e7599557f9d63e7f224f34d33e9251b2c23c38f95631b3a54de53f024",
  			summary: "Star Wars: A New Hope",
  			referenceUrl: ""
  		},
  		{
  			type: "tx",
  			date: "2010-05-22",
  			txid: "a1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d",
  			summary: "The 'Bitcoin Pizza' transaction.",
  			alertBodyHtml: "This is the famous 'Bitcoin Pizza' transaction.",
  			referenceUrl: "https://bitcointalk.org/index.php?topic=137.0"
  		},
  		{
  			type: "tx",
  			date: "2011-05-18",
  			txid: "5d80a29be1609db91658b401f85921a86ab4755969729b65257651bb9fd2c10d",
  			summary: "Destroyed bitcoin.",
  			referenceUrl: "https://www.reddit.com/r/Bitcoin/comments/7mhoks/til_in_2011_a_user_running_a_modified_mining/"
  		},
  		{
  			type: "blockheight",
  			date: "2009-01-12",
  			blockHeight: 170,
  			blockHash: "00000000d1145790a8694403d4063f323d499e655c83426834d4ce2f8dd4a2ee",
  			summary: "First block containing a (non-coinbase) transaction.",
  			alertBodyHtml: "This block comes 9 days after the genesis block and is the first to contain a transfer of bitcoin. Before this block all blocks contained only coinbase transactions which mint new bitcoin.",
  			referenceUrl: "https://bitcointalk.org/index.php?topic=91806.msg1012234#msg1012234"
  		},
  		{
  			type: "blockheight",
  			date: "2017-08-25",
  			blockHeight: 481947,
  			blockHash: "00000000000000000139cb443e16442fcd07a4a0e0788dd045ee3cf268982016",
  			summary: "First block mined that was greater than 1MB.",
  			referenceUrl: "https://en.bit.news/bitfury-mined-first-segwit-block-size-1-mb/"
  		},
  		{
  			type: "blockheight",
  			date: "2018-01-20",
  			blockHeight: 505225,
  			blockHash: "0000000000000000001bbb529c64ddf55edec8f4ebc0a0ccf1d3bb21c278bfa7",
  			summary: "First block mined that was greater than 2MB.",
  			referenceUrl: "https://twitter.com/BitGo/status/954998877920247808"
  		},
  		{
  			type: "tx",
  			date: "2017-12-30",
  			txid: "9bf8853b3a823bbfa1e54017ae11a9e1f4d08a854dcce9f24e08114f2c921182",
  			summary: "Block reward lost",
  			alertBodyHtml: "This coinbase transaction completely fails to collect the block's mining reward. 12.5 BTC were lost.",
  			referenceUrl: "https://bitcoin.stackexchange.com/a/67012/3397"
  		},
  		{
  			type:"address",
  			date:"2011-12-03",
  			address:"1JryTePceSiWVpoNBU8SbwiT7J4ghzijzW",
  			summary:"Brainwallet address for 'Satoshi Nakamoto'",
  			referenceUrl:"https://twitter.com/MrHodl/status/1041448002005741568",
  			alertBodyHtml:"This address was generated from the SHA256 hash of 'Satoshi Nakamoto' as example of the 'brainwallet' concept."
  		}
  	],
  	exchangeRateData:{
  		jsonUrl:"https://api.coindesk.com/v1/bpi/currentprice.json",
  		responseBodySelectorFunction:function(responseBody) {
  			//console.log("Exchange Rate Response: " + JSON.stringify(responseBody));
  
  			var exchangedCurrencies = ["USD", "GBP", "EUR"];
  
  			if (responseBody.bpi) {
  				var exchangeRates = {};
  
  				for (var i = 0; i < exchangedCurrencies.length; i++) {
  					if (responseBody.bpi[exchangedCurrencies[i]]) {
  						exchangeRates[exchangedCurrencies[i].toLowerCase()] = responseBody.bpi[exchangedCurrencies[i]].rate_float;
  					}
  				}
  
  				return exchangeRates;
  			}
  
  			return null;
  		}
  	},
  	blockRewardFunction:function(blockHeight) {
  		var eras = [ new Decimal8(50) ];
  		for (var i = 1; i < 34; i++) {
  			var previous = eras[i - 1];
  			eras.push(new Decimal8(previous).dividedBy(2));
  		}
  
  		var index = Math.floor(blockHeight / 210000);
  
  		return eras[index];
  	}
  };
  