Jenkinsfile,README.md,cmd/clef,cmd/devp2p,cmd/echainspec,cmd/faucet,c…

…md/geth,cmd/utils,core/forkid,core,docs/getting-started,docs,tests/regression/shasums,tests/regression/simulated: drop kotti support
etclabscore · Jul 3, 2023 · bcd0423 · bcd0423
1 parent b97a4e6
commit bcd0423
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Showing 21 changed files with 11 additions and 295 deletions.
diff --git a/Jenkinsfile b/Jenkinsfile
@@ -10,7 +10,6 @@ pipeline {
     stages {
         stage('Notify Github of Pending Jobs') {
             steps {
-                githubNotify context: 'Kotti Regression', description: "${GITHUB_NOTIFY_DESCRIPTION}", status: 'PENDING', account: "${GITHUB_OWNER_NAME}", repo: "${GITHUB_REPO_NAME}", credentialsId: 'meowsbits-github-jenkins', sha: "${GIT_COMMIT}"
                 githubNotify context: 'Mordor Regression', description: "${GITHUB_NOTIFY_DESCRIPTION}", status: 'PENDING', account: "${GITHUB_OWNER_NAME}", repo: "${GITHUB_REPO_NAME}", credentialsId: 'meowsbits-github-jenkins', sha: "${GIT_COMMIT}"
                 githubNotify context: 'Goerli Regression', description: "${GITHUB_NOTIFY_DESCRIPTION}", status: 'PENDING', account: "${GITHUB_OWNER_NAME}", repo: "${GITHUB_REPO_NAME}", credentialsId: 'meowsbits-github-jenkins', sha: "${GIT_COMMIT}"
                 // githubNotify context: 'Classic Regression', description: "${GITHUB_NOTIFY_DESCRIPTION}", status: 'PENDING', account: "${GITHUB_OWNER_NAME}", repo: "${GITHUB_REPO_NAME}", credentialsId: 'meowsbits-github-jenkins', sha: "${GIT_COMMIT}"
@@ -19,25 +18,6 @@ pipeline {
         }
         stage("Run Regression Tests") {
             parallel {
-                stage('Kotti') {
-                    agent { label "aws-slave-m5-xlarge" }
-                    steps {
-                        sh "curl -L -O https://go.dev/dl/go1.20.3.linux-amd64.tar.gz"
-                        sh "sudo rm -rf /usr/bin/go && sudo rm -rf /usr/local/go && sudo tar -C /usr/local -xzf go1.20.3.linux-amd64.tar.gz"
-                        sh "sudo cp /usr/local/go/bin/go /usr/bin/go"
-                        sh "sudo cp /usr/local/go/bin/gofmt /usr/bin/gofmt"
-                        sh "go version"
-                        sh "make geth && ./build/bin/geth version"
-                        sh "rm -rf ${GETH_DATADIR}-kotti"
-                        sh "shasum -a 256 -c ./tests/regression/shasums/kotti.0-2544960.rlp.gz.sha256"
-                        sh "./build/bin/geth --kotti --cache=2048 --nocompaction --nousb --txlookuplimit=1 --datadir=${GETH_DATADIR}-kotti import ${GETH_EXPORTS}/kotti.0-2544960.rlp.gz"
-                    }
-                    post {
-                        always { sh "rm -rf ${GETH_DATADIR}-kotti" }
-                        success { githubNotify context: 'Kotti Regression', description: "${GITHUB_NOTIFY_DESCRIPTION}", status: 'SUCCESS', account: "${GITHUB_OWNER_NAME}", repo: "${GITHUB_REPO_NAME}", credentialsId: 'meowsbits-github-jenkins', sha: "${GIT_COMMIT}" }
-                        unsuccessful { githubNotify context: 'Kotti Regression', description: "${GITHUB_NOTIFY_DESCRIPTION}", status: 'FAILURE', account: "${GITHUB_OWNER_NAME}", repo: "${GITHUB_REPO_NAME}", credentialsId: 'meowsbits-github-jenkins', sha: "${GIT_COMMIT}" }
-                    }
-                }
                 stage('Mordor') {
                     agent { label "aws-slave-m5-xlarge" }
                     steps {
@@ -80,11 +60,11 @@ pipeline {
                 // Commented now because these take a looong time.
                 // One way of approaching a solution is to break each chain into a "stepladder" of imports, eg. 0-1150000, 1150000-1920000, 1920000-2500000, etc...
                 // This would allow further parallelization at the cost of duplicated base chaindata stores.
-                // Since the core focus of testing here is configuration (both user-facing and internal), and one of ugly limitations of our current testnets 
-                // being that they DO NOT reflect the production environment well in this regard (which is a very vulnerable reagard) 
+                // Since the core focus of testing here is configuration (both user-facing and internal), and one of ugly limitations of our current testnets
+                // being that they DO NOT reflect the production environment well in this regard (which is a very vulnerable reagard)
                 // another approach might be to condense the chain fork progressions of ETC and ETH into custom test-only chains, perhaps using retestest or a similar
                 // tool to make transactions and manage chain upgrades dynamically as a transactions are made.
-                // 
+                //
                 // stage('Classic') {
                 //     agent { label "aws-slave-m5-xlarge" }
                 //     steps {

diff --git a/README.md b/README.md
@@ -28,7 +28,6 @@ Networks supported by the respective go-ethereum packaged `geth` program.
 |        | :zap:             | Ropsten (Geth+Parity ETH PoW Testnet) | :heavy_check_mark:                                       | :heavy_check_mark:   |
 |        | :handshake:       | Rinkeby (Geth-only ETH PoA Testnet)   | :heavy_check_mark:                                       | :heavy_check_mark:   |
 |        | :handshake:       | Goerli (Geth+Parity ETH PoA Testnet)  | :heavy_check_mark:                                       | :heavy_check_mark:   |
-|        | :handshake:       | Kotti (Geth+Parity ETC PoA Testnet)   | :heavy_check_mark:                                       |                      |
 |        | :handshake:       | Kovan (Parity-only ETH PoA Testnet)   |                                                          |                      |
 |        |                   | Tobalaba (EWF Testnet)                |                                                          |                      |
 |        |                   | Ephemeral development PoA network     | :heavy_check_mark:                                       | :heavy_check_mark:   |

diff --git a/cmd/clef/README.md b/cmd/clef/README.md
@@ -29,7 +29,7 @@ GLOBAL OPTIONS:
    --loglevel value        log level to emit to the screen (default: 4)
    --keystore value        Directory for the keystore (default: "$HOME/.ethereum/keystore")
    --configdir value       Directory for Clef configuration (default: "$HOME/.clef")
-   --chainid value         Chain id to use for signing (1=mainnet, 2=Morden (disused), 3=ropsten, 4=rinkeby, 5=Goerli, 6=Kotti) (default: 1)
+   --chainid value         Chain id to use for signing (1=mainnet, 2=Morden (disused), 3=ropsten, 4=rinkeby, 5=Goerli) (default: 1)
    --lightkdf              Reduce key-derivation RAM & CPU usage at some expense of KDF strength
    --nousb                 Disables monitoring for and managing USB hardware wallets
    --pcscdpath value       Path to the smartcard daemon (pcscd) socket file (default: "/run/pcscd/pcscd.comm")
@@ -150,7 +150,7 @@ All hex encoded values must be prefixed with `0x`.
 
 #### Create new password protected account
 
-The signer will generate a new private key, encrypt it according to [web3 keystore spec](https://github.com/ethereum/wiki/wiki/Web3-Secret-Storage-Definition) and store it in the keystore directory.  
+The signer will generate a new private key, encrypt it according to [web3 keystore spec](https://github.com/ethereum/wiki/wiki/Web3-Secret-Storage-Definition) and store it in the keystore directory.
 The client is responsible for creating a backup of the keystore. If the keystore is lost there is no method of retrieving lost accounts.
 
 #### Arguments

diff --git a/cmd/clef/main.go b/cmd/clef/main.go
@@ -100,7 +100,7 @@ var (
 	chainIdFlag = &cli.Int64Flag{
 		Name:  "chainid",
 		Value: params.MainnetChainConfig.ChainID.Int64(),
-		Usage: "Chain id to use for signing (1=foundation, 61=classic, 3=Ropsten, 4=Rinkeby, 5=Goerli, 6=Kotti, 63=Mordor, 133519467574834=Yolo)",
+		Usage: "Chain id to use for signing (1=foundation, 61=classic, 3=Ropsten, 4=Rinkeby, 5=Goerli, 63=Mordor, 133519467574834=Yolo)",
 	}
 	rpcPortFlag = &cli.IntFlag{
 		Name:     "http.port",

diff --git a/cmd/devp2p/nodesetcmd.go b/cmd/devp2p/nodesetcmd.go
@@ -237,8 +237,6 @@ func ethFilter(args []string) (nodeFilter, error) {
 		filter = forkid.NewStaticFilter(params.SepoliaChainConfig, params.SepoliaGenesisHash)
 	case "classic":
 		filter = forkid.NewStaticFilter(params.ClassicChainConfig, params.MainnetGenesisHash)
-	case "kotti":
-		filter = forkid.NewStaticFilter(params.KottiChainConfig, params.KottiGenesisHash)
 	case "mordor":
 		filter = forkid.NewStaticFilter(params.MordorChainConfig, params.MordorGenesisHash)
 	case "mintme":

diff --git a/cmd/echainspec/main.go b/cmd/echainspec/main.go
@@ -41,7 +41,6 @@ var chainspecFormats = func() []string {
 
 var defaultChainspecValues = map[string]ctypes.Configurator{
 	"classic": params.DefaultClassicGenesisBlock(),
-	"kotti":   params.DefaultKottiGenesisBlock(),
 	"mordor":  params.DefaultMordorGenesisBlock(),
 
 	"foundation": params.DefaultGenesisBlock(),
@@ -196,10 +195,6 @@ EXAMPLES:
 
 		> {{.Name}} --default classic --outputf coregeth
 
-	Validate a default Kotti network chain configuration for block #3000000:
-
-		> {{.Name}} --default kotti validate 3000000
-
 VERSION:
    {{.Version}}
 

diff --git a/cmd/faucet/faucet.go b/cmd/faucet/faucet.go
@@ -67,7 +67,6 @@ var (
 	foundationFlag = flag.Bool("chain.foundation", false, "Configure genesis and bootnodes for foundation chain defaults")
 	classicFlag    = flag.Bool("chain.classic", false, "Configure genesis and bootnodes for classic chain defaults")
 	mordorFlag     = flag.Bool("chain.mordor", false, "Configure genesis and bootnodes for mordor chain defaults")
-	kottiFlag      = flag.Bool("chain.kotti", false, "Configure genesis and bootnodes for kotti chain defaults")
 	testnetFlag    = flag.Bool("chain.testnet", false, "Configure genesis and bootnodes for testnet chain defaults")
 	rinkebyFlag    = flag.Bool("chain.rinkeby", false, "Configure genesis and bootnodes for rinkeby chain defaults")
 	goerliFlag     = flag.Bool("chain.goerli", false, "Configure genesis and bootnodes for goerli chain defaults")
@@ -109,7 +108,6 @@ var chainFlags = []*bool{
 	foundationFlag,
 	classicFlag,
 	mordorFlag,
-	kottiFlag,
 	testnetFlag,
 	rinkebyFlag,
 	goerliFlag,
@@ -138,8 +136,6 @@ func faucetDirFromChainIndicators(chainID uint64, genesisHash common.Hash) strin
 		return filepath.Join(datadir, "rinkeby")
 	case params.GoerliGenesisHash:
 		return filepath.Join(datadir, "goerli")
-	case params.KottiGenesisHash:
-		return filepath.Join(datadir, "kotti")
 	case params.MordorGenesisHash:
 		return filepath.Join(datadir, "mordor")
 	case params.SepoliaGenesisHash:
@@ -158,7 +154,6 @@ func parseChainFlags() (gs *genesisT.Genesis, bs string, netid uint64) {
 		{*classicFlag, params.DefaultClassicGenesisBlock(), nil},
 		{*mordorFlag, params.DefaultMordorGenesisBlock(), nil},
 		{*rinkebyFlag, params.DefaultRinkebyGenesisBlock(), nil},
-		{*kottiFlag, params.DefaultKottiGenesisBlock(), nil},
 		{*goerliFlag, params.DefaultGoerliGenesisBlock(), nil},
 		{*sepoliaFlag, params.DefaultSepoliaGenesisBlock(), nil},
 	}
@@ -570,8 +565,6 @@ func (f *faucet) startStack(genesis *genesisT.Genesis, port int, enodes []*enode
 		} else {
 			utils.SetDNSDiscoveryDefaults(&cfg, core.GenesisToBlock(genesis, nil).Hash())
 		}
-	case params.KottiGenesisHash:
-		utils.SetDNSDiscoveryDefaults2(&cfg, params.KottiDNSNetwork1)
 	case params.MordorGenesisHash:
 		utils.SetDNSDiscoveryDefaults2(&cfg, params.MordorDNSNetwork1)
 	default:

diff --git a/cmd/geth/consolecmd_cg_test.go b/cmd/geth/consolecmd_cg_test.go
@@ -37,7 +37,6 @@ func TestConsoleCmdNetworkIdentities(t *testing.T) {
 		{[]string{"--rinkeby"}, 4, 4, params.RinkebyGenesisHash.Hex()},
 		{[]string{"--sepolia"}, 11155111, 11155111, params.SepoliaGenesisHash.Hex()},
 		{[]string{"--goerli"}, 5, 5, params.GoerliGenesisHash.Hex()},
-		{[]string{"--kotti"}, 6, 6, params.KottiGenesisHash.Hex()},
 		{[]string{"--mordor"}, 7, 63, params.MordorGenesisHash.Hex()},
 		{[]string{"--mintme"}, 37480, 24734, params.MintMeGenesisHash.Hex()},
 		{[]string{"--dev"}, 1337, 1337, "0x0"},

diff --git a/cmd/geth/main.go b/cmd/geth/main.go
@@ -332,9 +332,6 @@ func checkMainnet(ctx *cli.Context) bool {
 	case ctx.IsSet(utils.MordorFlag.Name):
 		log.Info("Starting Geth on Mordor testnet...")
 
-	case ctx.IsSet(utils.KottiFlag.Name):
-		log.Info("Starting Geth on Kotti testnet...")
-
 	case ctx.IsSet(utils.MintMeFlag.Name):
 		log.Info("Starting Geth on MintMe.com Coin mainnet...")
 

diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
@@ -179,11 +179,6 @@ var (
 		Usage:    "Rinkeby network: pre-configured proof-of-authority test network",
 		Category: flags.EthCategory,
 	}
-	KottiFlag = &cli.BoolFlag{
-		Name:     "kotti",
-		Usage:    "Kotti network: cross-client proof-of-authority test network",
-		Category: flags.EthCategory,
-	}
 	MordorFlag = &cli.BoolFlag{
 		Name:     "mordor",
 		Usage:    "Mordor network: Ethereum Classic's cross-client proof-of-work test network",
@@ -1086,7 +1081,6 @@ var (
 		GoerliFlag,
 		SepoliaFlag,
 		MordorFlag,
-		KottiFlag,
 	}
 	// NetworkFlags is the flag group of all built-in supported networks.
 	NetworkFlags = append([]cli.Flag{
@@ -1171,8 +1165,6 @@ func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
 		urls = params.SepoliaBootnodes
 	case ctx.Bool(RinkebyFlag.Name):
 		urls = params.RinkebyBootnodes
-	case ctx.Bool(KottiFlag.Name):
-		urls = params.KottiBootnodes
 	case ctx.Bool(GoerliFlag.Name):
 		urls = params.GoerliBootnodes
 	}
@@ -1208,8 +1200,6 @@ func setBootstrapNodesV5(ctx *cli.Context, cfg *p2p.Config) {
 		urls = params.MordorBootnodes
 	case ctx.Bool(RinkebyFlag.Name):
 		urls = params.RinkebyBootnodes
-	case ctx.Bool(KottiFlag.Name):
-		urls = params.KottiBootnodes
 	case ctx.Bool(GoerliFlag.Name):
 		urls = params.GoerliBootnodes
 	case ctx.Bool(MintMeFlag.Name):
@@ -1668,8 +1658,6 @@ func dataDirPathForCtxChainConfig(ctx *cli.Context, baseDataDirPath string) stri
 		return filepath.Join(baseDataDirPath, "mordor")
 	case ctx.Bool(RinkebyFlag.Name):
 		return filepath.Join(baseDataDirPath, "rinkeby")
-	case ctx.Bool(KottiFlag.Name):
-		return filepath.Join(baseDataDirPath, "kotti")
 	case ctx.Bool(GoerliFlag.Name):
 		return filepath.Join(baseDataDirPath, "goerli")
 	case ctx.Bool(SepoliaFlag.Name):
@@ -1926,7 +1914,7 @@ func CheckExclusive(ctx *cli.Context, args ...interface{}) {
 // SetEthConfig applies eth-related command line flags to the config.
 func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 	// Avoid conflicting network flags
-	CheckExclusive(ctx, MainnetFlag, DeveloperFlag, DeveloperPoWFlag, RinkebyFlag, GoerliFlag, SepoliaFlag, ClassicFlag, KottiFlag, MordorFlag, MintMeFlag)
+	CheckExclusive(ctx, MainnetFlag, DeveloperFlag, DeveloperPoWFlag, RinkebyFlag, GoerliFlag, SepoliaFlag, ClassicFlag, MordorFlag, MintMeFlag)
 	CheckExclusive(ctx, LightServeFlag, SyncModeFlag, "light")
 	CheckExclusive(ctx, DeveloperFlag, DeveloperPoWFlag, ExternalSignerFlag) // Can't use both ephemeral unlocked and external signer
 	if ctx.String(GCModeFlag.Name) == "archive" && ctx.Uint64(TxLookupLimitFlag.Name) != 0 {
@@ -2155,8 +2143,6 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 		SetDNSDiscoveryDefaults(cfg, params.GoerliGenesisHash)
 	case ctx.Bool(ClassicFlag.Name):
 		SetDNSDiscoveryDefaults2(cfg, params.ClassicDNSNetwork1)
-	case ctx.Bool(KottiFlag.Name):
-		SetDNSDiscoveryDefaults2(cfg, params.KottiDNSNetwork1)
 	case ctx.Bool(MordorFlag.Name):
 		SetDNSDiscoveryDefaults2(cfg, params.MordorDNSNetwork1)
 	default:
@@ -2505,8 +2491,6 @@ func genesisForCtxChainConfig(ctx *cli.Context) *genesisT.Genesis {
 		genesis = params.DefaultSepoliaGenesisBlock()
 	case ctx.Bool(RinkebyFlag.Name):
 		genesis = params.DefaultRinkebyGenesisBlock()
-	case ctx.Bool(KottiFlag.Name):
-		genesis = params.DefaultKottiGenesisBlock()
 	case ctx.Bool(GoerliFlag.Name):
 		genesis = params.DefaultGoerliGenesisBlock()
 	case ctx.Bool(MintMeFlag.Name):

diff --git a/core/forkid/forkid_test.go b/core/forkid/forkid_test.go
@@ -186,29 +186,6 @@ func TestCreation(t *testing.T) {
 				{14_525_001, 0, ID{Hash: checksumToBytes(0x7fd1bb25), Next: 0}},
 			},
 		},
-		{
-			"kotti",
-			params.KottiChainConfig,
-			params.KottiGenesisHash,
-			[]testcase{
-				{0, 0, ID{Hash: checksumToBytes(0x0550152e), Next: 716617}},
-				{716616, 0, ID{Hash: checksumToBytes(0x0550152e), Next: 716617}},
-				{716617, 0, ID{Hash: checksumToBytes(0xa3270822), Next: 1705549}},
-				{716618, 0, ID{Hash: checksumToBytes(0xa3270822), Next: 1705549}},
-				{1705548, 0, ID{Hash: checksumToBytes(0xa3270822), Next: 1705549}},
-				{1705549, 0, ID{Hash: checksumToBytes(0x8f3698e0), Next: 2200013}},
-				{1705550, 0, ID{Hash: checksumToBytes(0x8f3698e0), Next: 2200013}},
-				{2200012, 0, ID{Hash: checksumToBytes(0x8f3698e0), Next: 2200013}},
-				{2200013, 0, ID{Hash: checksumToBytes(0x6f402821), Next: 4_368_634}},
-				{2200014, 0, ID{Hash: checksumToBytes(0x6f402821), Next: 4_368_634}},
-				{4_368_633, 0, ID{Hash: checksumToBytes(0x6f402821), Next: 4_368_634}},
-				{4_368_634, 0, ID{Hash: checksumToBytes(0xf03e54e7), Next: 5_578_000}},
-				{4_368_635, 0, ID{Hash: checksumToBytes(0xf03e54e7), Next: 5_578_000}},
-				{5_577_999, 0, ID{Hash: checksumToBytes(0xf03e54e7), Next: 5_578_000}},
-				{5_578_000, 0, ID{Hash: checksumToBytes(0xc5459816), Next: 0}},
-				{5_578_001, 0, ID{Hash: checksumToBytes(0xc5459816), Next: 0}},
-			},
-		},
 		{
 			"mordor",
 			params.MordorChainConfig,
@@ -547,11 +524,6 @@ func TestGatherForks(t *testing.T) {
 			params.MordorChainConfig,
 			[]uint64{301_243, 999_983, 2_520_000, 3_985_893, 5_520_000},
 		},
-		{
-			"kotti",
-			params.KottiChainConfig,
-			[]uint64{716_617, 1_705_549, 2_200_013, 4_368_634, 5_578_000},
-		},
 		{
 			"mintme",
 			params.MintMeChainConfig,
@@ -609,11 +581,6 @@ func TestGenerateSpecificationCases(t *testing.T) {
 			params.ClassicChainConfig,
 			params.MainnetGenesisHash,
 		},
-		{
-			"Kotti",
-			params.KottiChainConfig,
-			params.KottiGenesisHash,
-		},
 		{
 			"Mordor",
 			params.MordorChainConfig,

diff --git a/core/genesis.go b/core/genesis.go
@@ -265,8 +265,6 @@ func configOrDefault(g *genesisT.Genesis, ghash common.Hash) ctypes.ChainConfigu
 		return params.RinkebyChainConfig
 	case ghash == params.GoerliGenesisHash:
 		return params.GoerliChainConfig
-	case ghash == params.KottiGenesisHash:
-		return params.KottiChainConfig
 	case ghash == params.MordorGenesisHash:
 		return params.MordorChainConfig
 	case ghash == params.SepoliaGenesisHash:
@@ -370,8 +368,6 @@ func CommitGenesisState(db ethdb.Database, hash common.Hash) error {
 			genesis = params.DefaultGoerliGenesisBlock()
 		case params.SepoliaGenesisHash:
 			genesis = params.DefaultSepoliaGenesisBlock()
-		case params.KottiGenesisHash:
-			genesis = params.DefaultKottiGenesisBlock()
 		case params.MordorGenesisHash:
 			genesis = params.DefaultMordorGenesisBlock()
 		case params.MintMeGenesisHash:

diff --git a/docs/getting-started/run-cli.md b/docs/getting-started/run-cli.md
@@ -16,7 +16,7 @@ particular use-case the user doesn't care about years-old historical data, so we
 fast-sync quickly to the current state of the network. To do so:
 
 ```
-$ geth [|--classic|--testnet|--rinkeby|--kotti|--goerli|--mordor] console
+$ geth [|--classic|--testnet|--rinkeby|--goerli|--mordor] console
 ```
 
 This command will:
@@ -133,11 +133,10 @@ ETHEREUM OPTIONS:
   --keystore value                    Directory for the keystore (default = inside the datadir)
   --nousb                             Disables monitoring for and managing USB hardware wallets
   --pcscdpath value                   Path to the smartcard daemon (pcscd) socket file
-  --networkid value                   Explicitly set network id (integer)(For testnets: use --ropsten, --rinkeby, --goerli, --kotti, --mordor, --yolov2 instead) (default: 1)
+  --networkid value                   Explicitly set network id (integer)(For testnets: use --ropsten, --rinkeby, --goerli, --mordor, --yolov2 instead) (default: 1)
   --classic                           Ethereum Classic network: pre-configured Ethereum Classic mainnet
   --mordor                            Mordor network: Ethereum Classic's cross-client proof-of-work test network
   --rinkeby                           Rinkeby network: pre-configured proof-of-authority test network
-  --kotti                             Kotti network: cross-client proof-of-authority test network
   --goerli                            Görli network: pre-configured proof-of-authority test network
   --rinkeby                           Rinkeby network: pre-configured proof-of-authority test network
   --yolov2                            YOLOv2 network: pre-configured proof-of-authority shortlived test network.