kirite protocol

KIRITE (切手, きりて) is a native privacy layer for the Solana blockchain. The name derives from the Japanese word for a stamp seal — an object that proves a signature exists without revealing the hand behind it.

the signature exists. the hand does not.

the problem

Every transaction on Solana is fully transparent. Wallet balances, transfer amounts, recipient addresses, and timing — all of it is broadcast in real-time to the entire network. This creates three critical attack vectors:

• MEV extraction — bots front-run your trades within milliseconds of detection, extracting value directly from your transaction.
• Transaction graph analysis — on-chain analytics firms map wallet clusters to real-world identities, exposing your entire financial history.
• Copy trading & strategy leakage — competing traders replicate your positions the moment they appear on-chain, eroding any alpha.

In 2025, over $2.1 billion was lost to MEV exploitation on Solana alone. The average time for a bot to detect and front-run a transaction was 0.4 seconds.

the solution

KIRITE introduces three cryptographic layers that work together to make transactions invisible:

1. Confidential Transfer — encrypts transaction amounts using Twisted ElGamal encryption, built on Solana's native Confidential Balances extension.
2. Shield Pool — breaks the deterministic link between sender and receiver through a multi-asset anonymity set with time-locked deposits.
3. Stealth Address — generates a one-time keypair for every transaction, making the recipient unlinkable to any known identity.

Each layer eliminates a different dimension of metadata leakage. Together, they reduce traceable transaction metadata by 98%.

design philosophy

KIRITE is built on four principles:

• Non-custodial — private keys never leave the user's device. There is no trusted third party, coordinator, or relay.
• Client-side proofs — all zero-knowledge proofs are generated in the browser. The network validates proofs without learning what they prove.
• Solana-native — built directly on L1 cryptographic primitives (Confidential Balances Token Extension), not a bridge or sidechain.
• Composable — any Solana application can integrate KIRITE through a simple SDK. Privacy becomes a feature, not a separate chain.

built on solana L1

Unlike previous privacy protocols that required custom VMs or off-chain computation, KIRITE leverages Solana's Confidential Balances token extension — cryptographic primitives that are part of the Solana runtime itself. This means:

• No additional trust assumptions beyond Solana consensus
• Native SPL token compatibility
• Sub-second proof generation on standard hardware
• No bridging risk or cross-chain complexity