As bitcoin turns 10, one of its most notable skeptics has offered up, if reluctantly, further comment on digital currencies.

Speaking at an Axios conference in Los Angeles on Tuesday, Jamie Dimon, the CEO and chairman of JPMorgan Chase & Co. JPM, +0.87% , was asked to weigh in once more on the world’s largest digital currency. The gist of his response:

“ ‘I didn’t want to be the spokesman against bitcoin. I don’t really give a shit — that’s the point, OK?’ ” — Jamie Dimon

See:Jamie Dimon talks bitcoin video, per CNBC

Dimon may not have wanted to be the spokesman for the “con” side of the bitcoin debate, but history shows he sure hasn’t helped himself if the goal was to stay on the sideline.

In 2014 he said bitcoin was a “terrible store of value.” A year later he said it would not survive, and in September 2017 he went all in by labeling bitcoin a fraud — a comment he later said he regretted.

Jamie Dimon versus bitcoin

Tuesday’s comments come as bitcoin celebrates 10 years since Satoshi Nakamoto, the pseudonym tied to the creator of the best-known cryptocurrency, released the white paper on bitcoin to an email group of cypherpunks who were championing financial privacy.

Read:Bitcoin is 10 years old: Here’s what to expect in the cryptocurrency’s second decade

Despite his long-running beef with the bitcoin community, Dimon has been coming around to the technology that underpins bitcoin and the thousands of other cryptocurrencies. “Blockchain is real,” said Dimon on Tuesday in Los Angeles. “It’s a technology. Bitcoin is not the same as a fiat currency.”

He reportedly also said he had never retracted even his most incendiary comment but “just regret having said it.”

It’s been a wild ride for bitcoin. At inception, a single bitcoin was worth less than a cent, and by December 2017 that same bitcoin BTCUSD, +1.60% would have cost nearly $20,000. Today a bitcoin will set you back a little more than $6,000.

Read:The round numbers that show just how far bitcoin has come in 10 years