post
https://app.bitgo-test.com/api/staking/v1//wallets//kyc/upload
Accepts a KYC PDF document, uploads it to the XinFin MasterNode IPFS API, and returns the authoritative IPFS hash assigned by the network. Only supported for XDC and TXDC coins.
The returned hash must be included in the subsequent XDC stake request as kycHash.
It is submitted to the validator contract in the AUTHORIZE (uploadKYC) transaction.