Why do we want a reputation system?

Take a decision fast

"is it worth it?"

"how it is going to behave?"

"which one should I choose?"

Does my dApp need a RepSys?

Reputation Statement

• Source
• Claim
• Target

"Joe says Tim is a good developer"

"Jamie thinks Blockchain technology is revolutionary"

"Daniel told me that James Bond's movies are the best action movies, ever!"

"Banco de Chile has evidence that I'm a good payer"

Context!

Never ever mix contexts!

A bad payer is not a bad worker!

A good  priest is not necessarily a good person!

Can't pay

Bad payment reputation

Can't find job

Lose job

Collect & store reputation statements for a context

Aggregate claims for a target

Make a decision base on the reputation "score"

In a contract!

Collect & store reputation statements for a context

please consider:

• Claims coding

• Privacy

• Aging

• Ownership

• Cost

Aggregate claims for a target

In a contract!

problems arrise:

• Which Aggregate function?

• Function is personal

• Weighted by source

• General function makes sense?

Contract can make a decision!

Make a decision base on the reputation "score"

Well......

Recap

• Does my dApp need a RepSys?

• Don't ever mix context.

• Aggregate function makes sense?

• Leave decision to the humans

¡Gracias totales!

http://slides.com/ajunge/devcon1-repsys