Is the nonce not implemented?

[KiithNabaal]

My impression is that since this is a proof of concept, a nonce "dummy" was introduced to have it, but it would be up to the developers who use this to actually implement a proof of work algorithm. Is this correct?

I have team members who seem to think it is to guarantee that duplicate data inserted to the ledger doesn't result in a hash collision.

All literature points to nonces being used in some computationally intensive task for the sake of delaying a malicious modification of a blockchain (honest ones are ahead). There is some confusion on the team though as to what the actual use is based on the implementation here.

Thanks!