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@opaquecash/psr-chain-solana

v0.2.3

Published

Solana (web3.js) PSR V2 integration: schema registry, attestation engine, and reputation-verifier proof submission. The Solana counterpart to @opaquecash/psr-chain.

Vulnerabilities

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Links

Git

Maintainers

collinsadicollinsadi

Keywords

Readme

@opaquecash/psr-chain-solana

Solana (@solana/web3.js) PSR V2 integration — the Solana counterpart to @opaquecash/psr-chain (EVM). Covers the three PSR programs:

  • Schema registry — computeSchemaId, deriveSchemaPda, buildRegisterSchemaInstruction, buildAddDelegateInstruction / buildRemoveDelegateInstruction, buildDeprecateSchemaInstruction, parseSchemaPda, fetchSchemaPda / fetchAllSchemas.
  • Attestation engine V2 — deriveAttestationPda (["attestation_v2", schemaId, issuer, stealthAddressHash]), buildAttestInstruction, buildRevokeInstruction, parseAttestationPda, fetchAttestationPda / fetchAllAttestations.
  • Reputation verifier — deriveRootHistoryPda / deriveVerifierConfigPda / deriveMerkleRootPda / deriveNullifierPda, encodeGroth16Proof, fetchLatestValidMerkleRoot, buildVerifyReputationInstruction, and submitReputationProof (derive PDAs, check root + nullifier, sign via a wallet-adapter signTransaction, send).

Instruction encoding uses Anchor discriminators (sha256("global:<method>")). Program ids come from the centralized getSolanaDeployment in @opaquecash/stealth-chain-solana (getPsrSolanaPrograms(cluster)). The chain-neutral schema/attestation codecs (field encoding, encodeV2AttestationMetadata, uid computation) live in @opaquecash/psr-core.

Signing stays in the app's wallet layer — builders return unsigned TransactionInstructions, and submitReputationProof takes a signTransaction callback.

Note: the deployed devnet reputation verifier uses a fixed verify_reputation dispatch tag (VERIFY_REPUTATION_DISCRIMINATOR), not Anchor's default. Override it in buildVerifyReputationInstruction if the program is redeployed.