Can't see the timestamp on wayback archive.
But over on Twitter the same is true, with Stripe's annoucement coming a few hours before Bolt's:
https://twitter.com/stripe/status/986651162760724480
https://twitter.com/bolt/status/986700626364055552
And anyway Stripe's release was announcing the release of the product on that day, it wasn't just a random marketing filler. There is a just no way a company the size of Stripe is going to put something as sensitive as a new fraud detection system in production, on a 1h notice just to steal some views from a competitor's blog post if it's not 100% ready.
I don't trust for 1 second that the CEO of a company in the same space can believe that either.