The proof stack.
Four primitives make TraceProtocol work: deterministic hashing, Merkle batching, on-chain anchoring, and public verification. Everything else is plumbing.
Cryptographic integrity
SHA-256 fingerprints over the raw document bytes. Any modification yields a different hash — tamper evidence is detectable without storing the document.
Merkle batching
Documents are grouped into a Merkle tree so a single on-chain transaction anchors thousands of hashes. Gas cost per document falls by orders of magnitude.
EVM Layer-2 anchoring
Proofs are written to EVM L2 networks (Linea, Polygon, BSC). Public chains, public verifiability, zero lock-in.
Zero data exfiltration
We hash and anchor, we never store. Files remain in your infrastructure; only the fingerprint reaches the blockchain.
End-to-end attestation flow
document → sha256() → leafleaves → merkleTree() → rootroot → L2 contract.emit(Attested) → txtx + leaf + proof → verifier() → ✓ authentic
Ready to integrate?
Our team will help you scope the pilot, wire the first integration, and validate the proof-of-concept within weeks.
Talk to the team