Smart contract for partner reward

Version 1.0.0

1. Policy

Block Producer (BP) will initially pay a certain amount of tokens and have a three-year lock-up period.

The lock-up will be released at 1/36 rate per month.

Each month, BP claims thier reward manually. If this month, BP does not claim then CanChain will accumulate to next month.

If a BP is banned (because they are not fit with CanChain checklist), they will be claimed tokens for previous month (they cannot claim for current month).

2. Funcionality

Start partner reward start

This function helps CanChain stating a contract for BP reward with: total tokens which will be locked,

time to get reward (a month).

• @param total_reward: The total of CAT tokens which is locked for partner reward
• @param duration: The time for locked
• @param lock_duration: The time for receive token reward

Add a partner to CanChain addpartner

After that, we must add all our BPs to CanChain, when a BP is added to this smart contract, it will be

calculate time for claming rewarding.

• @param partner_account: The name of partner who will be added

Ban a partner from CanChain banpartner

When a BP, they do not miss with CanChain requirement as time to produce block, security, etc, they will be blocked by CanChain.

After BP is blocked, they cannot claim reward from current month.

• @param partner_account: The name of partner will be banned

Block producer claims reward claimreward

This smart contract will be calculate the amount of token which will be rewarded to BP. Therfore, in a month,

BP can claim their reward belonging CanChain's policy

• @param partner_account: The name of partner who will be received reward

Example on jungle testnet using cleos

Get started

• Create account partnereward to deploy smart contract

Build & deploy smart contract

Go to partner_reaward directory then do flowing steps:

1. Build smart contract

eosio-cpp -abigen -I include -contract partnereward -o partnereward.wasm src/partnereward.cpp

2. Deploy to jungle test net

$ cleos -u https://jungle2.cryptolions.io:443 set contract partnereward . partnereward.wasm partnereward.abi

To add permission on the jungle test net

$ cleos -u https://jungle2.cryptolions.io:443 set account permission partnereward active '{"threshold": 1,"keys": [{"key": "Pub_key","weight": 1}],"accounts": [{"permission":{"actor":"partnereward","permission":"eosio.code"},"weight":1}]}' owner -p partnereward

Create 7 partner accounts

We created 7 partner accounts on jungle test net via http://monitor.jungletestnet.io/#home

canpartner11
canpartner12
canpartner13
canpartner14
canpartner15
canpartner21
canpartner22

Start system via start action

start( const asset & total_reward, uint32_t duration, uint32_t lock_duration)

The value of duration in seconds

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward start '["1000 EOS", 86400, 36]' -p partnereward

Add partner to our smart contract via addpartner action

1. Add partner

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward addpartner '[canpartner11]' -p partnereward

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward addpartner '[canpartner12]' -p partnereward

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward addpartner '[canpartner13]' -p partnereward

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward addpartner '[canpartner14]' -p partnereward

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward addpartner '[canpartner15]' -p partnereward

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward addpartner '[canpartner21]' -p partnereward

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward addpartner '[canpartner22]' -p partnereward

2. Check result in partners table

$ cleos -u https://jungle2.cryptolions.io:443 get table partnereward partnereward partners

Check partnereward account info

$ cleos -u https://jungle2.cryptolions.io:443 get account partnereward
{
EOS balances:
     liquid:          200.0000 EOS
     staked:            2.0000 EOS
     unstaking:         0.0000 EOS
     total:           202.0000 EOS
}

Check canpartner11 account info

$ cleos -u https://jungle2.cryptolions.io:443 get account canpartner11
{
  EOS balances:
     liquid:          100.0000 EOS
     staked:            2.0000 EOS
     unstaking:         0.0000 EOS
     total:           102.0000 EOS
}

Check canpartner12 account info

$ cleos -u https://jungle2.cryptolions.io:443 get account canpartner12
{
  EOS balances:
     liquid:          100.0000 EOS
     staked:            2.0000 EOS
     unstaking:         0.0000 EOS
     total:           102.0000 EOS
}

Partner claim reward (For testing purpose only, we set time to claim is 1 hour)

1. Partner claim reward

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward claimreward '[canpartner11]' -p canpartner11

$ cleos -u https://jungle2.cryptolions.io:443 push action partnereward claimreward '[canpartner12]' -p canpartner12

2. Check result

$ cleos -u https://jungle2.cryptolions.io:443 get table partnereward partnereward partners