You can either run a node on your own hardware or use a cloud provider. We would recommend choosing one of the big cloud providers, e.g. Amazon AWS.
Node specifications
We recommend the following or better:
General Purpose Instance with 2 vCPUs (3.5 GHz), 4GB of memory, up to 10 Gbps network bandwidth, and at least 100 GB of gp2 SSD. Bare metal with equivalent or higher specs are even better.
We would recommend going with Ubuntu Server 22.04 LTS (64-bit).
Storage
30 B is sufficient if you're running using a pruned datadir.
100 GB is needed if you'd like to run with a full size (non-pruned) datadir.
50 GB is sufficient if you're running using a no-history genesis in snapsync mode (and then wait till it get synced to the latest block).
Network settings
Open up port 22 for SSH, as well as port 5050 for both TCP and UDP traffic. A custom port can be used with "--port <port>" flag when run your opera node.
Set up non-root user
If there is already a non-root user available, you can skip this step.
# Install go(validator)$ wget https://go.dev/dl/go1.19.3.linux-amd64.tar.gz(validator)$ sudo tar -xvf go1.19.3.linux-amd64.tar.gz(validator)$ sudo mv go /usr/local
Export the required Go paths:
# Export go paths(validator)$ vi ~/.bash_aliases# Append the following linesexport GOROOT=/usr/local/goexport GOPATH=$HOME/goexport PATH=$GOPATH/bin:$GOROOT/bin:$PATH(validator)$ source ~/.bash_aliases
Validate your Go installation
Install Opera:
# Install Opera(validator)$ git clone https://github.com/DOIDFoundation/go-opera.git(validator)$ cd go-opera/(validator)$ git checkout develop(validator)$ make
Validate your Opera installation:
$./build/operaversionVERSION:1.1.3-rc.4
Register DOID validator
After installing everything we need, you can continue by registering your DOID validator node on-chain. To do this, you need to create a validator wallet. The wallet is the validator’s identity in the network which it uses to authenticate, sign messages, etc.
First, start the Opera read-only node to interact with it and to create a validator wallet:
# Start opera node(validator)$ cd build/(validator)$ nohup ./opera --mainnet --genesis.allowExperimental --nousb \--datadir=YOUR_DIR&
Note that https and ws must not be enabled on a server that stores wallet account.
Starting up your node will look something like this:
Once it's run, you should wait till it's synced up to the latest block before proceeding to the next step.
Create a validator wallet
The node running and syncing the network in your current console, so you need to open up a new console window, connect via SSH to the server and enter the following commands to create a wallet:
# Create validator wallet(validator)$ ./opera account new --datadir=YOUR_DIR
After entering the command, you will get prompted to enter a password for the account (= wallet) — use a strong one! You can e.g. use a password manager to generate a 20+ digit password to secure your wallet.
It will look something like this:
NEVER share your private key or keystore with anyone!
By the way: The wallet above is not a real wallet we use, it’s just for demonstration purposes only.
Fund your validator wallet
The next step is to fund your validator wallet with enough DOID to become a validator. That means you need to have at least 10,000 DOID in the wallet you just created.
After successfully swapping DOID to your newly created Opera wallet, you can register your validator via the SFC Smart Contract.
Make sure you wait for your node to be fully synced, otherwise your DOID will not show up in your wallet!
Create a new validator key
We have to create validator private key to sign consensus messages with. It can be done only using go-opera:
(validator)$ ./opera validator new --datadir=YOUR_DIR
Follow the prompts and supply the password, the output is as follows:
YournewkeywasgeneratedPublickey:0xPubkeyPathofthesecretkeyfile:-Youcanshareyourpublickeywithanyone.Othersneedittovalidatemessagesfromyou.-YoumustNEVERsharethesecretkeywithanyone!Thekeycontrolsaccesstoyourvalidator!-YoumustBACKUPyourkeyfile!Withoutthekey,it's impossible to operate the validator!- You must REMEMBER your password! Without the password, it'simpossibletodecryptthekey!
Create your validator via the SFC
You should wait for your node to sync to the latest block of the network before proceeding.
To proceed, open up the console where you entered the commands to create the validator wallet previously and attach to the Opera node console:
# Attach to opera console(validator)$ ./opera attach --datadir=YOUR_DIR
By doing so, you will get a JavaScript console where you can directly interact with the Opera node and e.g. send transactions (which you will do in a moment):
Now initialize the SFC contract ABI variable:
abi = JSON.parse('[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"validatorID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"status","type":"uint256"}],"name":"ChangedValidatorStatus","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lockupExtraReward","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lockupBaseReward","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"unlockedReward","type":"uint256"}],"name":"ClaimedRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"validatorID","type":"uint256"},{"indexed":true,"internalType":"address","name":"auth","type":"address"},{"indexed":false,"internalType":"uint256","name":"createdEpoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"createdTime","type":"uint256"}],"name":"CreatedValidator","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"validatorID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"deactivatedEpoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"deactivatedTime","type":"uint256"}],"name":"DeactivatedValidator","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Delegated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"uint256","name":"validatorID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"duration","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"LockedUpStake","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lockupExtraReward","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"lockupBaseReward","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"unlockedReward","type":"uint256"}],"name":"RestakedRewards","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"wrID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Undelegated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"uint256","name":"validatorID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"penalty","type":"uint256"}],"name":"UnlockedStake","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"UpdatedBaseRewardPerSec","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"blocksNum","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"period","type":"uint256"}],"name":"UpdatedOfflinePenaltyThreshold","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"validatorID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"refundRatio","type":"uint256"}],"name":"UpdatedSlashingRefundRatio","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"delegator","type":"address"},{"indexed":true,"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"wrID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdrawn","type":"event"},{"constant":true,"inputs":[],"name":"baseRewardPerSecond","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"contractCommission","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"currentSealedEpoch","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getEpochSnapshot","outputs":[{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"uint256","name":"epochFee","type":"uint256"},{"internalType":"uint256","name":"totalBaseRewardWeight","type":"uint256"},{"internalType":"uint256","name":"totalTxRewardWeight","type":"uint256"},{"internalType":"uint256","name":"baseRewardPerSecond","type":"uint256"},{"internalType":"uint256","name":"totalStake","type":"uint256"},{"internalType":"uint256","name":"totalSupply","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"getLockupInfo","outputs":[{"internalType":"uint256","name":"lockedStake","type":"uint256"},{"internalType":"uint256","name":"fromEpoch","type":"uint256"},{"internalType":"uint256","name":"endTime","type":"uint256"},{"internalType":"uint256","name":"duration","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"getStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"getStashedLockupRewards","outputs":[{"internalType":"uint256","name":"lockupExtraReward","type":"uint256"},{"internalType":"uint256","name":"lockupBaseReward","type":"uint256"},{"internalType":"uint256","name":"unlockedReward","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getValidator","outputs":[{"internalType":"uint256","name":"status","type":"uint256"},{"internalType":"uint256","name":"deactivatedTime","type":"uint256"},{"internalType":"uint256","name":"deactivatedEpoch","type":"uint256"},{"internalType":"uint256","name":"receivedStake","type":"uint256"},{"internalType":"uint256","name":"createdEpoch","type":"uint256"},{"internalType":"uint256","name":"createdTime","type":"uint256"},{"internalType":"address","name":"auth","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"getValidatorID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"getValidatorPubkey","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"getWithdrawalRequest","outputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"time","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"lastValidatorID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"maxDelegatedRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"maxLockupDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"minLockupDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"minSelfStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"slashingRefundRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"stakeTokenizerAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"stashedRewardsUntilEpoch","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalActiveStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSlashedStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"unlockedRewardRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"validatorCommission","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"internalType":"bytes3","name":"","type":"bytes3"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"withdrawalPeriodEpochs","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"withdrawalPeriodTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"currentEpoch","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"}],"name":"getEpochValidatorIDs","outputs":[{"internalType":"uint256[]","name":"","type":"uint256[]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"getEpochReceivedStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"getEpochAccumulatedRewardPerToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"getEpochAccumulatedUptime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"getEpochAccumulatedOriginatedTxsFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"getEpochOfflineTime","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"epoch","type":"uint256"},{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"getEpochOfflineBlocks","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"delegator","type":"address"},{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"rewardsStash","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"delegator","type":"address"},{"internalType":"uint256","name":"toValidatorID","type":"uint256"}],"name":"getLockedStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"sealedEpoch","type":"uint256"},{"internalType":"uint256","name":"_totalSupply","type":"uint256"},{"internalType":"address","name":"nodeDriver","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"auth","type":"address"},{"internalType":"uint256","name":"validatorID","type":"uint256"},{"internalType":"bytes","name":"pubkey","type":"bytes"},{"internalType":"uint256","name":"status","type":"uint256"},{"internalType":"uint256","name":"createdEpoch","type":"uint256"},{"internalType":"uint256","name":"createdTime","type":"uint256"},{"internalType":"uint256","name":"deactivatedEpoch","type":"uint256"},{"internalType":"uint256","name":"deactivatedTime","type":"uint256"}],"name":"setGenesisValidator","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"delegator","type":"address"},{"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"internalType":"uint256","name":"stake","type":"uint256"},{"internalType":"uint256","name":"lockedStake","type":"uint256"},{"internalType":"uint256","name":"lockupFromEpoch","type":"uint256"},{"internalType":"uint256","name":"lockupEndTime","type":"uint256"},{"internalType":"uint256","name":"lockupDuration","type":"uint256"},{"internalType":"uint256","name":"earlyUnlockPenalty","type":"uint256"},{"internalType":"uint256","name":"rewards","type":"uint256"}],"name":"setGenesisDelegation","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"pubkey","type":"bytes"}],"name":"createValidator","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"getSelfStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"toValidatorID","type":"uint256"}],"name":"delegate","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"internalType":"uint256","name":"wrID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"undelegate","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"validatorID","type":"uint256"}],"name":"isSlashed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"internalType":"uint256","name":"wrID","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"validatorID","type":"uint256"},{"internalType":"uint256","name":"status","type":"uint256"}],"name":"deactivateValidator","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"delegator","type":"address"},{"internalType":"uint256","name":"toValidatorID","type":"uint256"}],"name":"pendingRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"delegator","type":"address"},{"internalType":"uint256","name":"toValidatorID","type":"uint256"}],"name":"stashRewards","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"toValidatorID","type":"uint256"}],"name":"claimRewards","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"toValidatorID","type":"uint256"}],"name":"restakeRewards","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"validatorID","type":"uint256"},{"internalType":"bool","name":"syncPubkey","type":"bool"}],"name":"_syncValidator","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"offlinePenaltyThreshold","outputs":[{"internalType":"uint256","name":"blocksNum","type":"uint256"},{"internalType":"uint256","name":"time","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"value","type":"uint256"}],"name":"updateBaseRewardPerSecond","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"blocksNum","type":"uint256"},{"internalType":"uint256","name":"time","type":"uint256"}],"name":"updateOfflinePenaltyThreshold","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"validatorID","type":"uint256"},{"internalType":"uint256","name":"refundRatio","type":"uint256"}],"name":"updateSlashingRefundRatio","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"updateStakeTokenizerAddress","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256[]","name":"offlineTime","type":"uint256[]"},{"internalType":"uint256[]","name":"offlineBlocks","type":"uint256[]"},{"internalType":"uint256[]","name":"uptimes","type":"uint256[]"},{"internalType":"uint256[]","name":"originatedTxsFee","type":"uint256[]"}],"name":"sealEpoch","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256[]","name":"nextValidatorIDs","type":"uint256[]"}],"name":"sealEpochValidators","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"delegator","type":"address"},{"internalType":"uint256","name":"toValidatorID","type":"uint256"}],"name":"isLockedUp","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"delegator","type":"address"},{"internalType":"uint256","name":"toValidatorID","type":"uint256"}],"name":"getUnlockedStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"internalType":"uint256","name":"lockupDuration","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"lockStake","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"internalType":"uint256","name":"lockupDuration","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"relockStake","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"toValidatorID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"unlockStake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]')
After initializing both variables, you can now interact with the network’s SFC. Enter the following command to check that everything works as expected:
// Sanity check
sfcc.lastValidatorID() // if everything is all right, will return a non-zero value
If it looks like this, everything is OK (you should not get an error here):
Next, try to get your validatorID from the SFC using your previously generated validator wallet address:
# Get your validator id
sfcc.getValidatorID("{VALIDATOR_WALLET_ADDRESS}")
This should return 0, as you are not registered as a validator yet.
Next, unlock your validator wallet to be able to execute the registration transaction (make sure to use the password you set before). Note that, you can perform this step (unlockAccount + createValidator) in a separate machine (different from the machine you'll run your validator node), or it'd be even more secure if you use hardware wallet to do it.
This will return “true” if unlocking the wallet was successful:
Next, send the createValidator transaction to register your validator (the value is the representation of the smallest DOID unit, so dividing it be 1e18 will result in 10,000 DOID. Alternatively, you can use web3.toWei("10000.0")). Use quotes for "0xYOUR_PUBKEY" and "0xYOUR_ADDRESS":
Finally, execute the following command again to check your validatorID:
# Get your validator id
sfcc.getValidatorID("{VALIDATOR_WALLET_ADDRESS}")
It should now return something other than “0”:
Congrats, you are now a DOID validator!
Close the Opera console window by typing “exit”.
Run your DOID validator node
Before you run off celebrating, you need to restart your node in validator mode!
Make sure your node is already synced to the latest block in read mode, and it's synced in --syncmode full.
To stop the opera process (read mode):
(validator)$ pkill opera
Then wait a few seconds.
Then head back to the console window where you started your node with the following command: