Proof of Reserve for Any Asset

Proof of reserve (PoR) is a cryptographic method that allows organizations to publicly verify they hold the assets they claim. It provides transparent, auditable evidence of reserves without requiring trust in a third party. AuraReserve supports both classic PoR (publishing total reserve values) and Merkle Tree PoR (enabling individual verification of inclusion).

A Merkle Tree proof works by organizing data into a binary tree of cryptographic hashes. Each piece of data is hashed into a leaf node, then pairs of hashes are combined and hashed again to form parent nodes, until a single root hash remains. To prove any item is included, you only need the item's hash and a small set of sibling hashes along the path to the root — typically just log(n) hashes for n items.

A Merkle Sum Tree extends the standard Merkle Tree by storing a numeric value (such as a weight or balance) alongside each hash. As nodes are combined up the tree, their values are summed. This allows verification that individual items are included in the total and that all values add up correctly — making it ideal for proof of reserve where you need to prove both inclusion and total amounts.

No. While proof of reserve gained popularity in the cryptocurrency industry after exchange failures like FTX, the technology works for any asset class. AuraReserve is designed for physical assets like gold bars, silver, gemstones, and inventory, as well as digital assets, exchange balances, and any structured dataset that requires verifiable totals.

Yes. This is one of the core benefits of Merkle Tree proofs. Each user receives a proof specific to their entry that includes only their data and the minimum set of sibling hashes needed to reconstruct the path to the root. Other users' data remains completely hidden, preserving privacy while enabling individual verification.

You can start for free with no credit card required. Sign up at app.aurareserve.io, create a space for your reserves, add your asset data, and AuraReserve builds the Merkle Tree automatically. You can then generate proofs for individual entries and publish the Merkle root on-chain via Avalanche or expose it through the REST API.