Specter Protocol
Commit any data — credentials, API keys, images, encryption keys, tokens — to a Merkle tree as a Poseidon hash. Reveal it later with a zero-knowledge proof. No link between commit and reveal. No trusted intermediary. No exposed plaintext. Specter is a sovereign Layer 1 blockchain purpose-built for data privacy.
Data Commitments
Hash any data into a Poseidon commitment and insert it into a Merkle tree. The original data never touches the chain. Retrieve or prove knowledge of it later using a Groth16 zero-knowledge proof — without revealing the data itself or linking the proof to the original commit.
Phantom Identity
Operate on-chain without a persistent public address. Phantom Identity uses split-key cryptography so that every interaction appears to originate from a fresh, unlinkable identity. No transaction graph. No behavioral fingerprint. Full protocol-level pseudonymity.
Programmable Policies
Bind commitments to enforceable on-chain rules — timelocks, destination restrictions, threshold witnesses, expiry dates — all verified inside the ZK circuit. Policies travel with the data, not with the account. Compliance without surveillance.
| Parameter | Value |
|---|---|
| Consensus | CometBFT BFT |
| Framework | Cosmos SDK v0.53.2 |
| EVM | Full compatibility |
| ZK System | Groth16 on BN254 |
| Hash Function | Poseidon |
| Merkle Depth | 20 (~1M entries) |
| Native Token | GHOST |
| Max Supply | 1 billion |
Executive Summary
Specter is a data privacy protocol built as a sovereign Layer 1 blockchain. Its core primitive — the Ghost Protocol — is a commit/reveal system that works with arbitrary data, not just tokens. Any piece of data can be hashed into a Poseidon commitment, inserted into an on-chain Merkle tree, and later retrieved or proven via a Groth16 zero-knowledge proof. The commit and reveal operations are cryptographically unlinkable: no observer can connect a commitment to its corresponding reveal.
This design is data-agnostic by construction. The same circuit and the same Merkle tree that enables private token transfers also enables private credential verification, sealed API key storage, unlinkable image provenance, and encrypted key distribution. The protocol does not distinguish between data types at the commitment layer — it sees only hashes.
Specter runs on Cosmos SDK with CometBFT consensus, giving it sovereignty over its own validator set, governance, and upgrade path. Full EVM compatibility means existing Solidity tooling, wallets, and dApps can deploy on Specter without modification. A custom precompile (GhostMint) exposes the commit/reveal operations to EVM smart contracts at native speed.
GHOST Is One Application of This Protocol
The GHOST token is the native gas and staking token of the Specter network. Its private transfer mechanism — burn tokens into a commitment, mint fresh tokens from a ZK proof — is a specialized instance of the Ghost Protocol applied to fungible value. But the protocol itself is far broader. Credentials, images, API keys, encryption keys, bearer instruments, and any other structured data can use the same commit/reveal infrastructure with the same privacy guarantees.
The whitepaper that follows describes the protocol in full: the problem it solves, the cryptographic primitives it uses, the architecture that hosts it, and the token economics that sustain it.
How to Read This Whitepaper
The document is organized in fourteen sections:
- The Problem — Why on-chain data transparency is a liability, and why current solutions fall short.
- Protocol Overview — The Ghost Protocol commit/reveal system, data types, and commitment variants.
- Architecture — Cosmos SDK integration, EVM compatibility, and the GhostMint precompile.
- Data Commitments — Poseidon hashing, commitment structure, Merkle trees, and nullifiers.
- Zero-Knowledge Proofs — Groth16 on BN254, the redemption circuit, access proof circuit, and trusted setup.
- Phantom Keys — Standard keys and Open Ghost keys for flexible identity models.
- Phantom Identity — Split-key architecture for unlinkable on-chain interaction.
- Persistent Access — Access proofs, bearer formats, and encrypted data retrieval.
- Policy System — Circuit-bound policies including timelocks, destination restrictions, and threshold witnesses.
- GHOST Token — Supply mechanics, mint/burn flow, and governance.
- Scaling — Batch operations, session vaults, and sharded Merkle trees.
- Infrastructure — Relayer network, stealth addresses, and cross-chain bridges.
- Security — Threat model, cryptographic assumptions, and audit plan.
- Roadmap — Development phases and open research questions.