Token Curated Registries (TCRs) have the potential to motivate people to participate in community-driven decision-making processes. BigchainDB, because of its support for simple JSON schema for assets, can also be used to implement TCRs (in a more generic way). These slides are from a workshop in which I presented how to build TCRs using BigchainDB primitives.

1. Trust in Data
Building Token Curated Registries
with BigchainDB
Gautam Dhameja
@gautamdhameja

2. Trust in Data
Part 1: Concepts

3. Trust in Data
https://medium.com/@ilovebagels/token-curated-registries-1-0-61a232f8dac7

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Token Curated Registries
• Registry or List
• Curation
• Token

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

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

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Token
• Why a token is needed?

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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.

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

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

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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

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BigchainDB Applications

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DApp Architecture
BigchainDB node
BigchainDB nodeBigchainDB node
BigchainDB node
DApp
BigchainDB Network
BigchainDB
Driver

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BigchainDB SDK
• Drivers
• Transaction Model
• Server setup

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Part 2: Implementation

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TCR with BigchainDB

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Everything is an Asset
• Registry
• Token
• Proposals, Challenges and Votes
• Parameters

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Asset Relationships
Proposals
Parameters
TCR
Token
Challenges
Votes

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Demo
• Enough talk, show me the code
https://github.com/gautamdhameja/tcr-bdb

20. Trust in Data
Thank You!
• Questions?