Proof Pod Function and Architecture
Proof Pods serve as dedicated off-chain entities coordinated through off-chain workers that generate zero-knowledge proofs for marketplace operations such as access control verification, dataset attribute validation, and governance participation. When a user requests access to a dataset, a Proof Pod generates the necessary proof using circuits like AccessVerifier, enabling verification of eligibility without exposing sensitive details.
The proof generation process occurs off-chain to minimize blockchain computational demands, with verification performed on-chain using EVM pallet precompiles and native verification pallets for elliptic curve operations. This separation of concerns aligns with the base layer's architecture, where ZKP verification costs 200,000 gas equivalent weight as specified in the technical parameters.
For each marketplace operation requiring privacy preservation, the corresponding ZKP circuit defines the computational logic to be verified. For instance, the AccessVerifier circuit validates that a user meets tier requirements without revealing their token balance, while DatasetAttributeVerifier confirms statistical properties without exposing raw data. Proof Pods execute these circuits with the appropriate inputs, generating cryptographic proofs that can be efficiently verified on-chain through the verification infrastructure.
Off-chain Proof Generation
vs
On-chain Proof Verification
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