Token curated registries (TCRs) use tokens to incentivize users to curate and maintain high-quality registries or lists. A TCR allows users to propose items to be included on a registry, challenge existing items, and vote on proposals and challenges. A token is needed to power the incentive system and ensure the value of the registry is aligned with the items and curators. The document provides code examples for implementing a basic TCR using smart contracts and a frontend interface.

1. Building DApps
with
Token Curated Registries
Gautam Dhameja
@gautamdhameja

2. https://medium.com/@ilovebagels/token-curated-registries-1-0-61a232f8dac7

3. Token Curated Registries
• Registry or List
• Curation
• Token

4. Registry
• Binary listings
– The item is either on it or not
– No intermediate stages 1 0

5. Curation
• Propose
– Item should be on the list (1)
• Challenge
– Item should not be on the list (0)
• Vote
– Either 0 or 1

6. Token
• Why a token is needed?

7. Token
• Why a token is needed?
– The incentive system and economy of the
registry should be based on the items in it
and the overall value of the registry.

8. TCR Cryptoeconomics
Curators Applicants
Consumers
Value of Token
References:
Token Curated Registries 1.0 - Mike Goldin
Circle of Cryptoeconomic Activity - Joel Monegro

9. TCR Primitives
• Proposals or Applications
• Challenges
• Votes
• Parameters

10. TCR Parameters
• Minimum deposits (MIN_DEPOSIT)
• Deadline for challenging (APPLY_STAGE_LEN)
• Deadline for voting (COMMIT_PERIOD_LEN)
Other Parameters:
REVEAL_PERIOD_LEN, DISPENSATION_PCT, VOTE_QUORUM

11. Let’s BUIDL
Enough talk, show me the code!
Smart Contracts:
https://github.com/gautamdhameja/simple-tcr
Frontend:
https://github.com/gautamdhameja/tcr-frontend

12. Thank You!
• Questions?