If you think of blockchain, you might think of data, secrecy or decentralization. But the primary purpose when it was created in 1992 was to create a verifiable audit trail. Back then that was incredibly useful in a scientific space, where ideas were currency, and you needed to protect them. However, auditing is a universal language, and the latest fan of the transparency blockchain can bring appears to be real estate, where both new and long-established companies are looking at cost-cutting measures.

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