A judge has thrown out a man’s attempt to sue a council to recover from a rubbish tip a Bitcoin hard drive that is now worth about £598m.

James Howells had argued that his former partner had mistakenly dumped the hard drive containing a Bitcoin wallet in 2013, and he wanted to access the site and recover the cryptocurrency.

But Newport council asked a High Court judge to strike out Mr Howells’ legal action to access the landfill or get £495m in compensation.

Judge Keyser KC said there were no “reasonable grounds” for bringing the claim and “no realistic prospect” of succeeding at a full trial.

Reacting to the decision, Mr Howells said he was “very upset”.

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The landfill holds more than 1.4m tonnes of waste, but Mr Howells said he had narrowed the hard drive’s location to an area consisting of 100,000 tonnes.

Mr Howells has speculated that, by next year, the Bitcoin on his hard drive could be worth £1bn.