first-class support for testnet/regtest

* display chain/network in header if not mainnet * indicate active chain/network in startup log * specify which chain/network "fun" items apply to and only show them for that chain * don't display exchange rates for testnet/regtest * use block interval of 150 for regtest halving * regtest hacks: since getblockchaininfo.blocks=0 on a default regtest node despite the genesis block existing, hack in a couple of places in order to display the genesis block * fix /peers page to not throw error with no connections
5 years ago · 44f3631fb1
14 changed files with 279 additions and 104 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -1,3 +1,8 @@
+#### v1.1.4
+##### 2019-12-04
+
+* First-class support for testnet/regtest
+
 #### v1.1.3
 ###### 2019-12-02

--- a/app.js
+++ b/app.js
@ -152,6 +152,32 @@ function loadChangelog() {
 	});
 }

+function loadHistoricalDataForChain(chain) {
+	global.specialTransactions = {};
+	global.specialBlocks = {};
+	global.specialAddresses = {};
+
+	if (config.donations.addresses && config.donations.addresses[coinConfig.ticker]) {
+		global.specialAddresses[config.donations.addresses[coinConfig.ticker].address] = {type:"donation"};
+	}
+
+	if (global.coinConfig.historicalData) {
+		global.coinConfig.historicalData.forEach(function(item) {
+			if (item.chain == chain) {
+				if (item.type == "blockheight") {
+					global.specialBlocks[item.blockHash] = item;
+
+				} else if (item.type == "tx") {
+					global.specialTransactions[item.txid] = item;
+
+				} else if (item.type == "address") {
+					global.specialAddresses[item.address] = {type:"fun", addressInfo:item};
+				}
+			}
+		});
+	}
+}
+

 app.onStartup = function() {
 	global.config = config;
@ -209,8 +235,20 @@ app.continueStartup = function() {
 	global.rpcClientNoTimeout = new bitcoinCore(rpcClientNoTimeoutProperties);

 	coreApi.getNetworkInfo().then(function(getnetworkinfo) {
-		debugLog(`Connected via RPC to node. Basic info: version=${getnetworkinfo.version}, subversion=${getnetworkinfo.subversion}, protocolversion=${getnetworkinfo.protocolversion}, services=${getnetworkinfo.localservices}`);
+		coreApi.getBlockchainInfo().then(function(getblockchaininfo) {
+			global.activeBlockchain = getblockchaininfo.chain;
+
+			// localservicenames introduced in 0.19
+			var services = getnetworkinfo.localservicesnames ? ("[" + getnetworkinfo.localservicesnames.join(", ") + "]") : getnetworkinfo.localservices;
+
+			debugLog(`RPC Connected: version=${getnetworkinfo.version} (${getnetworkinfo.subversion}), protocolversion=${getnetworkinfo.protocolversion}, chain=${getblockchaininfo.chain}, services=${services}`);
+
+			// load historical/fun items for this chain
+			loadHistoricalDataForChain(global.activeBlockchain);

+		}).catch(function(err) {
+			utils.logError("329u0wsdgewg6ed", err);
+		});
 	}).catch(function(err) {
 		utils.logError("32ugegdfsde", err);
 	});
@ -229,27 +267,6 @@ app.continueStartup = function() {
 		});
 	}

-	global.specialTransactions = {};
-	global.specialBlocks = {};
-	global.specialAddresses = {};
-
-	if (config.donations.addresses && config.donations.addresses[coinConfig.ticker]) {
-		global.specialAddresses[config.donations.addresses[coinConfig.ticker].address] = {type:"donation"};
-	}
-
-	if (global.coinConfig.historicalData) {
-		global.coinConfig.historicalData.forEach(function(item) {
-			if (item.type == "blockheight") {
-				global.specialBlocks[item.blockHash] = item;
-
-			} else if (item.type == "tx") {
-				global.specialTransactions[item.txid] = item;
-
-			} else if (item.type == "address") {
-				global.specialAddresses[item.address] = {type:"fun", addressInfo:item};
-			}
-		});
-	}

 	if (config.addressApi) {
 		var supportedAddressApis = addressApi.getSupportedAddressApis();
@ -280,12 +297,14 @@ app.continueStartup = function() {
 		setInterval(getSourcecodeProjectMetadata, 3600000);
 	}

-	if (global.exchangeRates == null) {
-		utils.refreshExchangeRates();
-	}
+	if (global.activeBlockchain == "main") {
+		if (global.exchangeRates == null) {
+			utils.refreshExchangeRates();
+		}

-	// refresh exchange rate periodically
-	setInterval(utils.refreshExchangeRates, 1800000);
+		// refresh exchange rate periodically
+		setInterval(utils.refreshExchangeRates, 1800000);
+	}

 	utils.logMemoryUsage();
 	setInterval(utils.logMemoryUsage, 5000);
--- a/app/api/coreApi.js
+++ b/app/api/coreApi.js
@ -74,11 +74,11 @@ if (redisCache.active) {


 function getGenesisBlockHash() {
-	return coins[config.coin].genesisBlockHash;
+	return coins[config.coin].genesisBlockHashesByNetwork[global.activeBlockchain];
 }

 function getGenesisCoinbaseTransactionId() {
-	return coins[config.coin].genesisCoinbaseTransactionId;
+	return coins[config.coin].genesisCoinbaseTransactionIdsByNetwork[global.activeBlockchain];
 }


--- a/app/api/electrumAddressApi.js
+++ b/app/api/electrumAddressApi.js
@ -172,7 +172,7 @@ function getAddressTxids(addrScripthash) {

 			if (addrScripthash == coinConfig.genesisCoinbaseOutputAddressScripthash) {
 				for (var i = 0; i < results.length; i++) {
-					results[i].result.unshift({tx_hash:coinConfig.genesisCoinbaseTransactionId, height:0});
+					results[i].result.unshift({tx_hash:coinConfig.genesisCoinbaseTransactionIdsByNetwork[global.activeBlockchain], height:0});
 				}
 			}

@ -206,7 +206,7 @@ function getAddressBalance(addrScripthash) {

 			if (addrScripthash == coinConfig.genesisCoinbaseOutputAddressScripthash) {
 				for (var i = 0; i < results.length; i++) {
-					var coinbaseBlockReward = coinConfig.blockRewardFunction(0);
+					var coinbaseBlockReward = coinConfig.blockRewardFunction(0, global.activeBlockchain);
 					
 					results[i].result.confirmed += (coinbaseBlockReward * coinConfig.baseCurrencyUnit.multiplier);
 				}
--- a/app/api/rpcApi.js
+++ b/app/api/rpcApi.js
@ -150,12 +150,18 @@ function getRawTransaction(txid) {
 	debugLog("getRawTransaction: %s", txid);

 	return new Promise(function(resolve, reject) {
-		if (coins[config.coin].genesisCoinbaseTransactionId && txid == coins[config.coin].genesisCoinbaseTransactionId) {
+		if (coins[config.coin].genesisCoinbaseTransactionIdsByNetwork[global.activeBlockchain] && txid == coins[config.coin].genesisCoinbaseTransactionIdsByNetwork[global.activeBlockchain]) {
 			// copy the "confirmations" field from genesis block to the genesis-coinbase tx
 			getBlockchainInfo().then(function(blockchainInfoResult) {
-				var result = coins[config.coin].genesisCoinbaseTransaction;
+				var result = coins[config.coin].genesisCoinbaseTransactionsByNetwork[global.activeBlockchain];
 				result.confirmations = blockchainInfoResult.blocks;

+				// hack: default regtest node returns "0" for number of blocks, despite including a genesis block;
+				// to display this block without errors, tag it with 1 confirmation
+				if (global.activeBlockchain == "regtest" && result.confirmations == 0) {
+					result.confirmations = 1;
+				}
+
 				resolve(result);

 			}).catch(function(err) {
--- a/app/coins/btc.js
+++ b/app/coins/btc.js
@ -69,46 +69,121 @@ module.exports = {
 	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"
-					]
+	genesisBlockHashesByNetwork:{
+		"main":    "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
+		"test":    "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943",
+		"regtest": "0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"
+	},
+	genesisCoinbaseTransactionIdsByNetwork: {
+		"main":    "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
+		"test":    "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
+		"regtest": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"
+	},
+	genesisCoinbaseTransactionsByNetwork:{
+		"main": {
+			"hex": "01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0804ffff001d02fd04ffffffff0100f2052a01000000434104f5eeb2b10c944c6b9fbcfff94c35bdeecd93df977882babc7f3a2cf7f5c81d3b09a68db7f0e04f21de5d4230e75e6dbe7ad16eefe0d4325a62067dc6f369446aac00000000",
+			"txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
+			"hash": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
+			"size": 204,
+			"vsize": 204,
+			"version": 1,
+			"confirmations":475000,
+			"vin": [
+				{
+					"coinbase": "04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73",
+					"sequence": 4294967295
 				}
-			}
-		],
-		"blockhash": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
-		"time": 1230988505,
-		"blocktime": 1230988505
+			],
+			"vout": [
+				{
+					"value": 50,
+					"n": 0,
+					"scriptPubKey": {
+						"asm": "04f5eeb2b10c944c6b9fbcfff94c35bdeecd93df977882babc7f3a2cf7f5c81d3b09a68db7f0e04f21de5d4230e75e6dbe7ad16eefe0d4325a62067dc6f369446a OP_CHECKSIG",
+						"hex": "4104f5eeb2b10c944c6b9fbcfff94c35bdeecd93df977882babc7f3a2cf7f5c81d3b09a68db7f0e04f21de5d4230e75e6dbe7ad16eefe0d4325a62067dc6f369446aac",
+						"reqSigs": 1,
+						"type": "pubkey",
+						"addresses": [
+							"1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa"
+						]
+					}
+				}
+			],
+			"blockhash": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
+			"time": 1230988505,
+			"blocktime": 1230988505
+		},
+		"test": {
+			"hex": "01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000",
+			"txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
+			"hash": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
+			"version": 1,
+			"size": 204,
+			"vsize": 204,
+			"weight": 816,
+			"locktime": 0,
+			"vin": [
+				{
+					"coinbase": "04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73",
+					"sequence": 4294967295
+				}
+			],
+			"vout": [
+				{
+					"value": 50.00000000,
+					"n": 0,
+					"scriptPubKey": {
+						"asm": "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f OP_CHECKSIG",
+						"hex": "4104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac",
+						"reqSigs": 1,
+						"type": "pubkey",
+						"addresses": [
+							"mpXwg4jMtRhuSpVq4xS3HFHmCmWp9NyGKt"
+						]
+					}
+				}
+			],
+			"blockhash": "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943",
+			"time": 1296688602,
+			"blocktime": 1296688602
+		},
+		"regtest": {
+			"hex": "01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff4d04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73ffffffff0100f2052a01000000434104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac00000000",
+			"txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
+			"hash": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
+			"version": 1,
+			"size": 204,
+			"vsize": 204,
+			"weight": 816,
+			"locktime": 0,
+			"vin": [
+				{
+					"coinbase": "04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73",
+					"sequence": 4294967295
+				}
+			],
+			"vout": [
+				{
+					"value": 50.00000000,
+					"n": 0,
+					"scriptPubKey": {
+						"asm": "04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f OP_CHECKSIG",
+						"hex": "4104678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5fac",
+						"type": "pubkey"
+					}
+				}
+			],
+			"blockhash": "0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206",
+			"time": 1296688602,
+			"blocktime": 1296688602
+		}
 	},
 	genesisCoinbaseOutputAddressScripthash:"8b01df4e368ea28f8dc0423bcf7a4923e3a12d307c875e47a0cfbf90b5c39161",
 	historicalData: [
 		{
 			type: "blockheight",
 			date: "2009-01-03",
+			chain: "main",
 			blockHeight: 0,
 			blockHash: "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
 			summary: "The Bitcoin Genesis Block.",
@ -118,6 +193,7 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2009-01-03",
+			chain: "main",
 			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.",
@ -126,6 +202,7 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2009-10-12",
+			chain: "main",
 			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.",
@ -134,6 +211,7 @@ module.exports = {
 		{
 			type: "blockheight",
 			date: "2017-08-24",
+			chain: "main",
 			blockHeight: 481824,
 			blockHash: "0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893",
 			summary: "First SegWit block.",
@ -142,6 +220,7 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2017-08-24",
+			chain: "main",
 			txid: "8f907925d2ebe48765103e6845C06f1f2bb77c6adc1cc002865865eb5cfd5c1c",
 			summary: "First SegWit transaction.",
 			referenceUrl: "https://twitter.com/KHS9NE/status/900553902923362304"
@ -149,6 +228,7 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2014-06-16",
+			chain: "main",
 			txid: "143a3d7e7599557f9d63e7f224f34d33e9251b2c23c38f95631b3a54de53f024",
 			summary: "Star Wars: A New Hope",
 			referenceUrl: ""
@ -156,6 +236,7 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2010-05-22",
+			chain: "main",
 			txid: "a1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d",
 			summary: "The 'Bitcoin Pizza' transaction.",
 			alertBodyHtml: "This is the famous 'Bitcoin Pizza' transaction.",
@ -164,6 +245,7 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2011-05-18",
+			chain: "main",
 			txid: "5d80a29be1609db91658b401f85921a86ab4755969729b65257651bb9fd2c10d",
 			summary: "Destroyed bitcoin.",
 			referenceUrl: "https://bitcointalk.org/index.php?topic=7253.msg184414#msg184414",
@ -172,6 +254,7 @@ module.exports = {
 		{
 			type: "blockheight",
 			date: "2009-01-12",
+			chain: "main",
 			blockHeight: 170,
 			blockHash: "00000000d1145790a8694403d4063f323d499e655c83426834d4ce2f8dd4a2ee",
 			summary: "First block containing a (non-coinbase) transaction.",
@ -181,6 +264,7 @@ module.exports = {
 		{
 			type: "blockheight",
 			date: "2017-08-25",
+			chain: "main",
 			blockHeight: 481947,
 			blockHash: "00000000000000000139cb443e16442fcd07a4a0e0788dd045ee3cf268982016",
 			summary: "First block mined that was greater than 1MB.",
@ -189,6 +273,7 @@ module.exports = {
 		{
 			type: "blockheight",
 			date: "2018-01-20",
+			chain: "main",
 			blockHeight: 505225,
 			blockHash: "0000000000000000001bbb529c64ddf55edec8f4ebc0a0ccf1d3bb21c278bfa7",
 			summary: "First block mined that was greater than 2MB.",
@ -197,6 +282,7 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2017-12-30",
+			chain: "main",
 			txid: "9bf8853b3a823bbfa1e54017ae11a9e1f4d08a854dcce9f24e08114f2c921182",
 			summary: "Block reward lost",
 			alertBodyHtml: "This coinbase transaction completely fails to collect the block's mining reward. 12.5 BTC were lost.",
@ -205,6 +291,7 @@ module.exports = {
 		{
 			type:"address",
 			date:"2011-12-03",
+			chain: "main",
 			address:"1JryTePceSiWVpoNBU8SbwiT7J4ghzijzW",
 			summary:"Brainwallet address for 'Satoshi Nakamoto'",
 			referenceUrl:"https://twitter.com/MrHodl/status/1041448002005741568",
@ -213,6 +300,7 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2010-11-14",
+			chain: "main",
 			txid: "e3bf3d07d4b0375638d5f1db5255fe07ba2c4cb067cd81b84ee974b6585fb468",
 			summary: "Duplicated coinbase transaction #1",
 			referenceUrl: "https://bitcoin.stackexchange.com/questions/38994/will-there-be-21-million-bitcoins-eventually/38998#38998",
@ -221,11 +309,56 @@ module.exports = {
 		{
 			type: "tx",
 			date: "2010-11-14",
+			chain: "main",
 			txid: "d5d27987d2a3dfc724e359870c6644b40e497bdc0589a033220fe15429d88599",
 			summary: "Duplicated coinbase transaction #2",
 			referenceUrl: "https://bitcoin.stackexchange.com/questions/38994/will-there-be-21-million-bitcoins-eventually/38998#38998",
 			alertBodyHtml: "This is one of 2 'duplicate coinbase' transactions. An early bitcoin bug (fixed by <a href='https://github.com/bitcoin/bips/blob/master/bip-0030.mediawiki'>BIP30</a>) allowed identical coinbase transactions - a newer duplicate would overwrite older copies. This transaction was the coinbase transaction for <a href='/block-height/91812'>Block #91,812</a> and, ~3 hours later, <a href='/block-height/91842'>Block #91,842</a>. The 50 BTC claimed as the coinbase for block 91,812 were also overwritten and lost."
-		}
+		},
+
+
+		// testnet
+		{
+			type: "blockheight",
+			date: "2011-02-02",
+			chain: "test",
+			blockHeight: 0,
+			blockHash: "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943",
+			summary: "The Bitcoin (regtest) Genesis Block.",
+			alertBodyHtml: "This is the first block in the Bitcoin blockchain, known as the 'Genesis Block'. 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: "2011-02-02",
+			chain: "test",
+			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"
+		},
+
+
+		// regtest
+		{
+			type: "blockheight",
+			date: "2011-02-02",
+			chain: "regtest",
+			blockHeight: 0,
+			blockHash: "0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206",
+			summary: "The Bitcoin (regtest) Genesis Block.",
+			alertBodyHtml: "This is the first block in the Bitcoin blockchain, known as the 'Genesis Block'. 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: "2011-02-02",
+			chain: "regtest",
+			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"
+		},
 	],
 	exchangeRateData:{
 		jsonUrl:"https://api.coindesk.com/v1/bpi/currentprice.json",
@ -249,14 +382,15 @@ module.exports = {
 			return null;
 		}
 	},
-	blockRewardFunction:function(blockHeight) {
+	blockRewardFunction:function(blockHeight, chain) {
 		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);
+		var halvingBlockInterval = (chain == "regtest" ? 150 : 210000);
+		var index = Math.floor(blockHeight / halvingBlockInterval);

 		return eras[index];
 	}
--- a/app/utils.js
+++ b/app/utils.js
@ -284,7 +284,7 @@ function getTxTotalInputOutputValues(tx, txInputs, blockHeight) {
 	try {
 		for (var i = 0; i < tx.vin.length; i++) {
 			if (tx.vin[i].coinbase) {
-				totalInputValue = totalInputValue.plus(new Decimal(coinConfig.blockRewardFunction(blockHeight)));
+				totalInputValue = totalInputValue.plus(new Decimal(coinConfig.blockRewardFunction(blockHeight, global.activeBlockchain)));

 			} else {
 				var txInput = txInputs[i];
@ -317,7 +317,7 @@ function getBlockTotalFeesFromCoinbaseTxAndBlockHeight(coinbaseTx, blockHeight)
 		return 0;
 	}

-	var blockReward = coinConfig.blockRewardFunction(blockHeight);
+	var blockReward = coinConfig.blockRewardFunction(blockHeight, global.activeBlockchain);

 	var totalOutput = new Decimal(0);
 	for (var i = 0; i < coinbaseTx.vout.length; i++) {
--- a/routes/baseActionsRouter.js
+++ b/routes/baseActionsRouter.js
@ -74,6 +74,10 @@ router.get("/", function(req, res, next) {
 			for (var i = 0; i < 10; i++) {
 				blockHeights.push(getblockchaininfo.blocks - i);
 			}
+		} else if (global.activeBlockchain == "regtest") {
+			// hack: default regtest node returns getblockchaininfo.blocks=0, despite having a genesis block
+			// hack this to display the genesis block
+			blockHeights.push(0);
 		}

 		if (getblockchaininfo.chain !== 'regtest') {
--- a/views/fun.pug
+++ b/views/fun.pug
@ -19,34 +19,35 @@ block content
 					th(class="data-header") Reference
 			tbody
 				each item, index in coinConfig.historicalData
-					tr
-						td(class="data-cell") #{item.date}
+					if (item.chain == global.activeBlockchain)
+						tr
+							td(class="data-cell") #{item.date}

-						td(class="data-cell") #{item.summary}
-						
-						td(class="data-cell monospace")
-							if (item.type == "tx")
-								a(href=("/tx/" + item.txid), title=item.txid, data-toggle="tooltip") Tx #{item.txid.substring(0, 23)}...
-							else if (item.type == "block")
-								a(href=("/block/" + item.blockHash), title="Block #{item.blockHash}", data-toggle="tooltip") Block #{item.blockHash.substring(0, 20)}...
-							else if (item.type == "blockheight")
-								a(href=("/block/" + item.blockHash)) Block ##{item.blockHeight}
-							else if (item.type == "address")
-								a(href=("/address/" + item.address), title=item.address, data-toggle="tooltip") Address #{item.address.substring(0, 18)}...
-							else if (item.type == "link")
-								a(href=item.url) #{item.url.substring(0, 20)}...
+							td(class="data-cell") #{item.summary}
+							
+							td(class="data-cell monospace")
+								if (item.type == "tx")
+									a(href=("/tx/" + item.txid), title=item.txid, data-toggle="tooltip") Tx #{item.txid.substring(0, 23)}...
+								else if (item.type == "block")
+									a(href=("/block/" + item.blockHash), title="Block #{item.blockHash}", data-toggle="tooltip") Block #{item.blockHash.substring(0, 20)}...
+								else if (item.type == "blockheight")
+									a(href=("/block/" + item.blockHash)) Block ##{item.blockHeight}
+								else if (item.type == "address")
+									a(href=("/address/" + item.address), title=item.address, data-toggle="tooltip") Address #{item.address.substring(0, 18)}...
+								else if (item.type == "link")
+									a(href=item.url) #{item.url.substring(0, 20)}...

-						td(class="data-cell")
-							if (item.referenceUrl && item.referenceUrl.trim().length > 0)
-								- var matches = item.referenceUrl.match(/^https?\:\/\/([^\/:?#]+)(?:[\/:?#]|$)/i);
+							td(class="data-cell")
+								if (item.referenceUrl && item.referenceUrl.trim().length > 0)
+									- var matches = item.referenceUrl.match(/^https?\:\/\/([^\/:?#]+)(?:[\/:?#]|$)/i);

-								- var domain = null;
-								- var domain = matches && matches[1];
+									- var domain = null;
+									- var domain = matches && matches[1];

-								if (domain)
-									a(href=item.referenceUrl, rel="nofollow") #{domain} 
-										i(class="fas fa-external-link-alt")
+									if (domain)
+										a(href=item.referenceUrl, rel="nofollow") #{domain} 
+											i(class="fas fa-external-link-alt")
+									else
+										a(href=item.referenceUrl, rel="nofollow") Reference
 								else
-									a(href=item.referenceUrl, rel="nofollow") Reference
-							else
-								span -
+									span -
--- a/views/includes/block-content.pug
+++ b/views/includes/block-content.pug
@ -73,7 +73,7 @@ div(class="tab-content")
 									- var currencyValue = new Decimal(result.getblock.totalFees).dividedBy(result.getblock.tx.length);
 									include ./value-display.pug

-						- var blockRewardMax = coinConfig.blockRewardFunction(result.getblock.height);
+						- var blockRewardMax = coinConfig.blockRewardFunction(result.getblock.height, global.activeBlockchain);
 						- var coinbaseTxTotalOutputValue = new Decimal(0);
 						each vout in result.getblock.coinbaseTx.vout
 							- coinbaseTxTotalOutputValue = coinbaseTxTotalOutputValue.plus(new Decimal(vout.value));
--- a/views/includes/transaction-io-details.pug
+++ b/views/includes/transaction-io-details.pug
@ -61,7 +61,7 @@ div(class="row monospace")

 								div(class="tx-io-value")
 									if (txVin.coinbase)
-										- var currencyValue = coinConfig.blockRewardFunction(blockHeight);
+										- var currencyValue = coinConfig.blockRewardFunction(blockHeight, global.activeBlockchain);
 										include ./value-display.pug
 									else
 										if (vout && vout.value)
--- a/views/layout.pug
+++ b/views/layout.pug
@ -44,6 +44,12 @@ html(lang="en")
 									a(href="/about", class="nav-link")
 										span About

+							if (global.activeBlockchain != "main")
+								- var chainName = global.activeBlockchain == "test" ? "testnet" : global.activeBlockchain
+
+								li.nav-item
+									a.nav-link.text-warning(title=`Current node's chain: ${global.activeBlockchain}` data-toggle="tooltip") [#{chainName}]
+
 							if (config.siteTools)
 								li(class="nav-item dropdown")
 									a(class="nav-link dropdown-toggle", href="javascript:void(0)", role="button", data-toggle="dropdown", aria-haspopup="true", aria-expanded="false") 
--- a/views/peers.pug
+++ b/views/peers.pug
@ -34,7 +34,7 @@ block content
 		div(id="tab-summary", class="tab-pane active", role="tabpanel")
 			

-			if (peerIpSummary.ips)
+			if (peerIpSummary && peerIpSummary.ips)
 				div(id="map", class="mb-4")

 			div(class="card mb-4 shadow-sm")
@ -93,7 +93,7 @@ block content
 								th(class="data-header") Address
 								th(class="data-header") Services

-								if (peerIpSummary.ips)
+								if (peerIpSummary && peerIpSummary.ips)
 									th(class="data-header") Location

 								th(class="data-header") Last Send / Receive
@ -161,7 +161,7 @@ block endOfBody
 			$(".data-table").DataTable();
 		});

-	if (peerIpSummary.ips)
+	if (peerIpSummary && peerIpSummary.ips)
 		script.
 			var mymap = L.map('map').setView([21.505, -0.09], 3);

--- a/views/transaction.pug
+++ b/views/transaction.pug
@ -27,7 +27,7 @@ block content

 		- var totalInputValue = new Decimal(0);
 		if (result.getrawtransaction.vin[0].coinbase)
-			- totalInputValue = totalInputValue.plus(new Decimal(coinConfig.blockRewardFunction(result.getblock.height)));
+			- totalInputValue = totalInputValue.plus(new Decimal(coinConfig.blockRewardFunction(result.getblock.height, global.activeBlockchain)));
 		each txInput, txInputIndex in result.txInputs
 			if (txInput)
 				- var vout = txInput.vout[result.getrawtransaction.vin[txInputIndex].vout];
@ -168,7 +168,7 @@ block content
 									- var currencyValue = new Decimal(totalOutputValue).minus(totalInputValue);
 									include includes/value-display.pug

-							- var blockRewardMax = coinConfig.blockRewardFunction(result.getblock.height);
+							- var blockRewardMax = coinConfig.blockRewardFunction(result.getblock.height, global.activeBlockchain);
 							if (parseFloat(totalOutputValue) < parseFloat(blockRewardMax))
 								div(class="row")
 									div(class="summary-table-label")