GOV.UK公式HPより
Blockchains are an example of Distributed Ledger Technology (DLT) – an authoritative system of record where everyone who subscribes to the blockchain gets a permanent record of every transaction. Once an entry is written to the blockchain, it cannot be altered by anyone, and everyone can see when and by whom it was added.

This means there’s a single source of truth, but no need for everyone to ‘just trust’ a single authority – trust is distributed and decentralised amongst the users.

We’ve been looking into how DLT could improve government systems. This property of distributing trust could be genuinely transformational in situations where public trust of government might not be taken for granted.

As the blockchain is distributed, append-only, and near real-time, even the most ardent conspiracy theorists could verify for themselves that the evidence has not been tampered with – there could be no possibility of records being falsified after the fact without detection.

Of course, this is only a “thought experiment” at this stage, and there are many hurdles to overcome for a real-world implementation. But the possibilities of revolutionary technology to transform not just government, but society as a whole, are genuinely exciting.

原文:GOV.UK

11月2日イギリス法務省はGOV.UKのブログで「ブロックチェーンで犯罪の証拠改ざん防止可能」と発表しました。

イギリスの法務省デジタル部門Alistair Davidson氏は「ブロックチェーンを利用して、文書・メール・映像といったデジタル証拠の信ぴょう性を上げる事が可能で、ブロックチェーンにデータを記録する事で、裁判所で提出する証拠は記録されたものと同じであり、改ざんされる事が無い」とコメントしました。