From a Synthetic AHP Event to a Real Base Sepolia Anchor

MyZubster's blockchain anchoring test for its AHP traceability layer has successfully reached completion. The objective was to confirm the authenticity and timestamp of a circular-economy trial without incorporating personal or health data onto the blockchain. The team achieved this by implementing several key components.

The MyZubster traceability service now offers signed append-only events, pseudonymous identifiers for pilots and lots, MongoDB storage, SHA-256 event hashing, Merkle tree generation, Ed25519 signature verification, EVM anchoring through a calldata transaction, and verification of Base Sepolia receipts. During the inaugural test event, crucial data such as lot mass, pilot details, and timestamps were recorded, with no personal or health information included.

The event's real-world test was anchored on the Base Sepolia testnet, resulting in a confirmed block with a specific transaction address and Merkle root value. This transaction utilized a zero-value self-transfer containing the MyZubster anchor payload. While the blockchain ensured the integrity, ordering, and timestamp verification, it did not independently validate the accuracy of physical measurements or recycling activities. Additional operational evidence and independent verification are still necessary for those claims.

Moving forward, MyZubster plans to expand the pilot by incorporating supply and custody-transfer events, collection and transport records, treatment measurements, QR/NFC lot linking, Merkle inclusion-proof verification, and correction and dispute mechanisms. All of this will be coupled with public reporting that separates measured, verified, estimated, and unknown values.

This marks the first real blockchain anchor for MyZubster's AHP traceability workflow, with the ultimate goal of bridging the technical ledger to a controlled physical pilot for absorbent products and circular-material recovery.