what's Pyre?

Pyre is a trustless NFT burning protocol on Solana. Users burn ERC-721 tokens from Ethereum, triggering off-chain downsampling to grayscale and permanent storage of the "ghost" image on Arweave (vault 8615). A "grave" NFT is minted on Solana as proof-of-burn. Image processing is performed off-chain due to high costs, with validity ensured by a zero-knowledge proof generated off-chain and verified on-chain in the fulfillBurn() function of Pyre.sol via Succinct's SP1 zkVM gateway. Built atop Vessel infrastructure for cross-chain functionality.

Pyre uses Succinct's SP1 gateway to verify ZK proofs onchain for trustless offchain image downsampling.