A drug dealer who thought he had £80,000 in Bitcoin was told the decimal point was in the wrong place - and it was actually worth pennies.
Josh Alexander declared his "fortune" to investigators after they launched a proceeds of crime action against him.
He told them he had 2.35 Bitcoin which is equivalent to around £80,000 - but it was actually 0.000235.
Officers realised the decimal point was in the wrong place and his crypto-currency stash was worth just a few pounds.
Alexander, 32, was jailed for six years last May for a range of offences, including possession with intent to supply drugs and being concerned in their supply.
At a hearing before Judge Maria Lamb at Oxford Crown Court on Thursday, prosecutor Christopher Pembridge said that it was initially thought Alexander had access to 2.35 Bitcoin.
At current exchange rates, his crypto-currency would have been worth between a staggering £70,000 and £80,000.
"Upon a review of that, it is in fact the case the spreadsheet had been incorrectly analysed and it is 0.000235 Bitcoin," he said.
"That would make it worth a nominal figure of a few pounds. The Crown are not going to proceed with that. It would be unnecessary."
There was broad agreement between prosecution and defence that the 'benefit' gained by Alexander was a little over £4,000 - the value of the drugs.
The "available amount" that could be confiscated was said to be the £730 cash, which was already in the hands of the police.
The judge was asked to delay making any confiscation order, however, which would permanently hand the cash over to the police - until Alexander's lawyer could take instructions from his client.
The defendant, formerly of Henley, is expected to be brought from prison in person for the next hearing on Friday, April 29.
