TABLE 2. Participants in the Supply and Registration Smart Contracts and the Contracts Ethereum Addresses.
| User | ID | Ethereum Address |
|---|---|---|
| MOH | 0 |
 B38Da6a701c568545dCfcB03FcB875f56beddC4 |
| Hospital | 1 | 0xAb8483F64d9C6d1EcF9b849Ae677dD3315835cb2 |
| RI | 2 |
 B20993Bc481177ec7E8f571ceCaE8A9e22C02db |
| Designer | 3 |
 D3Ca6b7E34aC0F824c42a7cC18A495cabaB |
| Workshop | 4 |
 F2E2fD72FD9D5503197092aC168c91465E7f2 |
| Authority | 5 |
 F6AD8Ef982297579C203069C1DbfFE4348c372 |
| VI | 6 |
 c6B0f7Bf3E7ce046039Bd8FABdfD3f9F5021678 |
| COV19-SUPPLY-SC | – |
 EF2e0048f5bAeDe046f6BF797943daF4ED8CB47 |
 |
– |
 fC5025C764cE34df352757e82f7B5c4Df39A836 |