Deployed Contracts

QTUM Testnet

• EventFactory: d49b4e6133957c635ecbabfb67fd14fe74da52cd

Interface (ABI)

[{"constant":true,"inputs":[{"name":"","type":"bytes32"}],"name":"topics","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"version","outputs":[{"name":"","type":"uint16"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_oracle","type":"address"},{"name":"_name","type":"bytes32[10]"},{"name":"_resultNames","type":"bytes32[10]"},{"name":"_bettingStartBlock","type":"uint256"},{"name":"_bettingEndBlock","type":"uint256"},{"name":"_resultSettingStartBlock","type":"uint256"},{"name":"_resultSettingEndBlock","type":"uint256"}],"name":"createTopic","outputs":[{"name":"topicEvent","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"_addressManager","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_version","type":"uint16"},{"indexed":true,"name":"_topicAddress","type":"address"},{"indexed":false,"name":"_name","type":"bytes32[10]"},{"indexed":false,"name":"_resultNames","type":"bytes32[11]"},{"indexed":false,"name":"_numOfResults","type":"uint8"}],"name":"TopicCreated","type":"event"}] Copy ABI Copied!

Function Signatures

b7b6d822: createTopic(address,bytes32[10],bytes32[10],uint256,uint256,uint256,uint256)
0f2fbeec: topics(bytes32)
54fd4d50: version()

Event Hashes

event TopicCreated(uint16 indexed _version, address indexed _topicAddress, bytes32[10] _name, bytes32[11] _resultNames, uint8 _numOfResults)
5f86751734872d7179519ded4087b938c7f8b03dd3511225a5fc97a687701126

createTopic()

Creates a new TopicEvent.

1. Launch QT Wallet
2. Click on Smart Contract tab
3. Click on SendTo sub tab

4. Set the Contract Address and Interface (ABI)

   

5. Set the Function to createTopic(d0613dce)

   

6. Set the hash address of the CentralizedOracle in address _oracle field

   

7. Set the TopicEvent name broken down by 32 byte blocks converted to hex in the bytes32[10] _name fields. These blocks need to be right-padded to 32 bytes.

   

   # Field 1
   # "Who will be the next president i" = 
   # 57686f2077696c6c20626520746865206e65787420707265736964656e742069 in hex
   
   # Field 2
   # "n the 2020 election?" = 
   # 6e20746865203230323020656c656374696f6e3f000000000000000000000000 in hex
   
   # Fields 3-10
   # empty strings = 
   # 0000000000000000000000000000000000000000000000000000000000000000 in hex
   

8. Set the TopicEvent result names converted to hex in the bytes32[10] _resultName fields. Same as the name fields, these blocks need to be right-padded to 32 bytes.

   

   # Field 1
   # "Trump" = 
   # 5472756d70000000000000000000000000000000000000000000000000000000 in hex
   
   # Field 2
   # "Hilary" = 
   # 48696c6172790000000000000000000000000000000000000000000000000000 in hex
   
   # Field 3
   # "The Rock" = 
   # 54686520526f636b000000000000000000000000000000000000000000000000 in hex
   
   # Field 4
   # "Kanye West" = 
   # 4b616e7965205765737400000000000000000000000000000000000000000000 in hex
   

9. Set the bettingStartBlock in the uint256 _bettingStartBlock field.

   

10. Set the bettingEndBlock in the uint256 _bettingEndBlock field. This needs to be > than the bettingStartBlock.

    

11. Set the resultSettingStartBlock in the uint256 _resultSettingStartBlock field. This needs to be >= than the bettingEndBlock.

    

12. Set the resultSettingEndBlock in the uint256 _resultSettingEndBlock field. This needs to be > than the resultSettingStartBlock.

    

13. Set the Gas Limit to 4000000 (4 million). Just to be safe the transaction goes through, all unused gas will be returned to you in the next coinstake transaction.

    

14. Set the Sender Address

    

15. Click Send To Contract button

16. Wait for transaction to get mined