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Trust in Data
Building Token Curated Registries
with BigchainDB
Gautam Dhameja
@gautamdhameja
Trust in Data
Part 1: Concepts
Trust in Data
https://medium.com/@ilovebagels/token-curated-registries-1-0-61a232f8dac7
Trust in Data
Token Curated Registries
• Registry or List
• Curation
• Token
Trust in Data
Registry
• Binary listings
– The item is either on it or not
– No intermediate stages 1 0
Trust in Data
Curation
• Propose
– Item should be on the list (1)
• Challenge
– Item should not be on the list (0)
• Vote
– Either 0 or 1
Trust in Data
Token
• Why a token is needed?
Trust in Data
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.
Trust in Data
TCR Cryptoeconomics
Curators Applicants
Consumers
Value of Token
References:
Token Curated Registries 1.0 - Mike Goldin
Circle of Cryptoeconomic Activity - Joel Monegro
Trust in Data
TCR Primitives
• Proposals or Applications
• Challenges
• Votes
• Parameters
Trust in Data
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
Trust in Data
BigchainDB Applications
Trust in Data
DApp Architecture
BigchainDB node
BigchainDB nodeBigchainDB node
BigchainDB node
DApp
BigchainDB Network
BigchainDB
Driver
Trust in Data
BigchainDB SDK
• Drivers
• Transaction Model
• Server setup
Trust in Data
Part 2: Implementation
Trust in Data
TCR with BigchainDB
Trust in Data
Everything is an Asset
• Registry
• Token
• Proposals, Challenges and Votes
• Parameters
Trust in Data
Asset Relationships
Proposals
Parameters
TCR
Token
Challenges
Votes
Trust in Data
Demo
• Enough talk, show me the code
https://github.com/gautamdhameja/tcr-bdb
Trust in Data
Thank You!
• Questions?

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Building Token Curated Registries with BigchainDB