identifi
The P2P Identity and Reputation Database
Martti Malmi 2013
Vision
- Ubiquitous identification and reputation
- Get benefits everywhere for being a good guy
- Get ostracized everywhere for antisocial behavior
- Huge incentive to not be a butthead
- Decentralization of justice
- Enables competing judges and investigators
- Everyone can choose whose judgement to trust
- Non-violent justice
- Ostracism is cost-effective
- Encourages compensation over punishment
- Economic benefit
- Reduces risk of trade or loan, thus reducing price
Mission
- Collect identifiers from everyone on the planet
- Email address
- Photograph
- Birthdate
- ...
- Connect the identifiers with different relations :
- A and B belong to same person
- B successfully traded with C
- C stole from D
- ...
- Evaluate data
- More weight on relations created by friends
- ...
Identifiers
- Anyone can add
- Unique or non-unique
- Data model:
- Type
- Name
- Facebook ID
- Phone number
- Address
- Public cryptographic key
- Fingerprint
- Company ID
- Create new types at will
- Value
Relations
- Links between identifiers
- Anyone can create
- Digitally signed by creator and people who approve
- Data model:
- Type
- Related IDs
- Value
- Timestamp
- Signatures
More relation types
- Facebook friendship
- Facebook relationship status
- A's Reddit account is B
- C works for D
- C no longer works for D
- E's judgement of a dispute between F and G
- Public contract between H and I
- Create new types at will
Evaluating
- Evaluate credibility of relations
- Various algorithms to counter spam and fakes
- User chooses how to evaluate
- Relation creator's position in your social network
- Relation creator's reputation
- Other relations by the same creator
- Show or hide anonymous gossip
-
Nodes can drop untrusted relations if disk space low
Visualization
Strategy
- P2P distributed data storage
- Avoids social and political pressure
- Freenet? DHT?
- Most users use via 3rd party web services
- Web services can run their own nodes
- Crawl data from existing sources
- eBay
- Public records
- ...
Use case: Lend money
- Take a photo of an unknown person in a pub
- Search by photo on Identifi
- Find out the person's name and other details
- View person's connections to your social network
- View person's reputation, eBay style
- Decide if you want to lend him 20 € for beer
- Write a review later
UI Example
Augmented reality with Google Glass
Use case: Fighting crime
- Capture thieves face on surveillance cam and search
- Get witnesses and file a report on Identifi
- Thief gets ostracized
- Thief can't get apartment, job, insurance or GF
- Thief incentivized to apologize and compensate
- ...or defend himself from false accusations
- Trusted entity can investigate disputes and judge
- Cost-effective
- Way cheaper and easier than going to court
- Cheaper and less harmful than jail
- Ostracism works
- Compensation over punishment
Changing the society
- Politicians likely to get negative feedback
- Discourages participation in politics
- Incentivize public servants with reputation
- Social reward for good service
- At last, responsibility for bad service...
- Discourage from enforcing unjust and unpopular laws
- Victimless crime
- Intellectual property laws
- Self-defense laws
- Global village community, everyone knows each other
- Secure your future with karma, not just money
- Gift economy, charity
identifi The P2P Identity and Reputation Database Martti Malmi 2013