World ID & World Chain: Building for Humans
summary
Workshop explains that World ID uses iris scans from the Worldcoin Orb to compute an iris code, checks uniqueness via an MPC-stored database, and registers a public key in a Merkle tree on Ethereum. Integration tools include ID kit, Next.js templates and a simulator with 1,000 pre-verified identities; proofs must be verified via cloud API or on-chain. Incognito actions use a nullifier hash to prevent double claims. Upcoming OP Stack L2 World Chain offers two $4,000 bounties (gas subsidy, tx priority) within a $20,000 World ID prize pool.
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