Immutable Ledger with Merkle Trees
for Tamper-Proof Audit Logs
VeilChain is a merkle tree ledger service providing cryptographically verifiable, immutable data storage. Perfect for audit logs, compliance records, and tamper-proof data integrity without blockchain overhead.
Merkle Tree Technology for Data Integrity
Built on battle-tested cryptographic primitives. No blockchain overhead, no tokens, just pure merkle tree integrity for tamper-proof audit logs.
Immutable Ledger Storage
Data can never be modified or deleted. Every entry is cryptographically chained in the merkle tree to prevent tampering.
Merkle Tree Proofs
Generate compact O(log n) merkle proofs that any entry exists in the immutable ledger. Verify offline, anywhere, by anyone.
External Anchoring
Publish root hashes to Bitcoin, Ethereum, or public logs for ultimate external verification.
Self-Hostable
Run VeilChain on your own infrastructure with Docker. Full control over your data.
Lightning Fast
No mining, no consensus delays. Append entries instantly with immediate proof generation.
Developer Friendly
TypeScript SDK, REST API, offline verification. Integrate in minutes with any stack.
Simple, Powerful API
Get started with just a few lines of code
import { MerkleTree, sha256 } from '@veilchain/core'; // Create a new Merkle tree const tree = new MerkleTree(); // Append entries (immutable once added) tree.append(sha256('audit log entry 1')); tree.append(sha256('audit log entry 2')); // Generate proof of inclusion const proof = tree.getProof(0); // Verify proof (works offline, by anyone) const isValid = MerkleTree.verify(proof); // true // Get root hash (publish for external verification) console.log(tree.root); // '0x3a7f...'
Immutable Audit Logs for Compliance & Security
Tamper-Proof Audit Logs
SOC2, HIPAA, SOX compliant immutable audit trails with merkle tree verification
Document Notarization
Prove documents existed at a specific point in time
Supply Chain
Track provenance with verifiable chain of custody
Legal Evidence
Court-admissible proof of data integrity
Regulatory Filing
Prove what was filed and when for compliance
Software Supply Chain
SBOM verification and dependency integrity
Build Immutable Ledgers with Merkle Trees
VeilChain is open source and free to use. Start building tamper-proof audit logs and data integrity solutions today.