Hello all,

write smart contract for verified user by uploading national Id on blockchain

uploading files and store in blockchain is costly.
How can I do that ?
( I know I need to convert file in hexadecimal format )

Apr 9, 2018, 5:37 AM

Upload to ipfs, then save the hash in smart contract

Apr 9, 2018, 5:51 AM

Testnet is your friend

Erc20 is a standard, you can add whatever you want to it... but it has all the functions that are 'standard' token functions

U can modify whatever u want

Apr 9, 2018, 7:05 AM

Okay thanks .
Ipfs add for add the documents on ipfs
ipfs get to get the docuements.

Thanks Tono and @BITWIZE .
I have one more confusion :
user verification options via Peer-to-Peer ?

Apr 9, 2018, 7:15 AM

IPFS storage may go away, unless you are maintaining all the nodes yourself

Apr 9, 2018, 11:58 AM

@ipfsdev

Apr 9, 2018, 12:05 PM

Hello all,write smart contract for verified user by uploading national Id on blockchainuploading files and store in blockchain is costly.How can I do that ?( I know I need to convert file in hexadecimal format )