README.md

Daccred Contracts

Smart contract Implementation for the Daccred Certification Service. We leverage the OZ ERCURIStorage to track the Metadata of Certifications hosted on IPFS over our deployed NFT Smart Contracts

Contract Address Tracker

Sample 1 Ropsten:

   Deploying 'Router'
   ------------------
   > transaction hash:    0x1268c42a189ffe465f9ff97384a91d3b98a7caaa187a7621f5f3d82588a9a5da
   > Blocks: 4            Seconds: 25
   > contract address:    0xF57Df2884e977dB3f5271218EBd6f1B2144A18B3
   > block number:        11826047
   > block timestamp:     1642349172
   > account:             0x59E52C70470f44BD0d01E4CE332A05dB5AeCD93C
   > balance:             2.833773364946142416
   > gas used:            3458876 (0x34c73c)
   > gas price:           18.218814986 gwei
   > value sent:          0 ETH
   > total cost:          0.063016621903515736 ETH

   Pausing for 2 confirmations...
   ------------------------------
   > confirmation number: 1 (block: 11826050)
   > confirmation number: 2 (block: 11826051)
   > Saving artifacts
   -------------------------------------
   > Total cost:     0.063016621903515736 ETH

Sample Payload createContractForClient

{
  "blockHash": "0xe51e83d644606f65cccf2a2bb159966471ba7842956f98f524327db991151349",
  "blockNumber": 28604090,
  "contractAddress": null,
  "cumulativeGasUsed": 3350533,
  "effectiveGasPrice": "0x9502f908",
  "from": "0xb72430b16657a7463a9dbb5d4645b3dc539b6e6b",
  "gasUsed": 2674297,
  "logsBloom": "0x00000000001000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000001000000000010000000000000000200000000020000000000000000000800000000000000800000000000000000400000000000000000000000000000000000000000000000000000000001000000000002000000000800000000000000000400000000000000000000002000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000008000000000000000000000002000000000000000000",
  "status": true,
  "to": "0x195c499669ed02e9313e94836a2dcf9500322532",
  "transactionHash": "0xf2ff6e6ea6e145bcce60025b83d55277726637dee275719a84b20b1400893d25",
  "transactionIndex": 5,
  "type": "0x2",
  "events": {
    "0": {
      "address": "0x09B18Dd3dd4527B37204BE1F967eb9BAD6b58CFc",
      "blockHash": "0xe51e83d644606f65cccf2a2bb159966471ba7842956f98f524327db991151349",
      "blockNumber": 28604090,
      "logIndex": 9,
      "removed": false,
      "transactionHash": "0xf2ff6e6ea6e145bcce60025b83d55277726637dee275719a84b20b1400893d25",
      "transactionIndex": 5,
      "transactionLogIndex": "0x0",
      "type": "mined",
      "id": "log_53c72b20",
      "returnValues": {},
      "signature": null,
      "raw": {
        "data": "0x",
        "topics": [
          "0x8be0079c531659141344cd1fd0a4f28419497f9722a3daafe3b4186f6b6457e0",
          "0x0000000000000000000000000000000000000000000000000000000000000000",
          "0x000000000000000000000000195c499669ed02e9313e94836a2dcf9500322532"
        ]
      }
    },
    "NewContractCreated": {
      "address": "0x195c499669Ed02E9313e94836A2dCf9500322532",
      "blockHash": "0xe51e83d644606f65cccf2a2bb159966471ba7842956f98f524327db991151349",
      "blockNumber": 28604090,
      "logIndex": 10,
      "removed": false,
      "transactionHash": "0xf2ff6e6ea6e145bcce60025b83d55277726637dee275719a84b20b1400893d25",
      "transactionIndex": 5,
      "transactionLogIndex": "0x1",
      "type": "mined",
      "id": "log_8329d127",
      "returnValues": {
        "0": "0x09B18Dd3dd4527B37204BE1F967eb9BAD6b58CFc",
        "1": "1638419536",
        "contractAddress": "0x09B18Dd3dd4527B37204BE1F967eb9BAD6b58CFc",
        "createdAt": "1638419536"
      },
      "event": "NewContractCreated",
      "signature": "0x1118269319064b841205f4635dfcac2dda808dedaadedbbdd30d6b0077f3d1ae",
      "raw": {
        "data": "0x00000000000000000000000009b18dd3dd4527b37204be1f967eb9bad6b58cfc0000000000000000000000000000000000000000000000000000000061a84c50",
        "topics": [
          "0x1118269319064b841205f4635dfcac2dda808dedaadedbbdd30d6b0077f3d1ae"
        ]
      }
    }
  }

Todo

• Contracts Documentation
• Optimize contract for Gas
• Add implementation to charge Mint fees