Supply chain tampering? That’s where the ledger’s immutability shines. Every batch gets a cryptographic hash and a timestamp. Once recorded, you can’t edit it without breaking the chain—anyone can audit the trail on the blockchain. Add smart contracts and you’ve got automated verification; if a container deviates from its route, the contract triggers alerts and even automatic payments to the next legit node. Think of it like a live market chart that shows every move in real time—no hidden forks, no double spends, just trustless transparency. That’s how blockchain keeps the chain intact.