Distributed database that is used to maintain a continuously growing list of records, called blocks
The fake news appeared on 4chan’s /biz/ thread at 4:30PM EST on 25th June. The post had a header “Vitalik Buterin confirmed dead”, but no proof link was inside.
The "news" started to be actively discussed, however, none of the commentators could confirm the death of Vitalik.
After some time, comments became more and more "scary" due to the fact that there was no response from Buterin. But it is necessary to remember that he lives in Singapore, so, it was early morning there.
Also, someone edited Wikipedia page about Vitalik, put it to past tense.
Vitalik Buterin wiki page
Some "news" sites began to add details on Vitalik's fake death. Still, no proofs.
Luckily, it was a hoax and Vitalik is alive and doing great.
Another day, another blockchain use case. pic.twitter.com/OyHzdhEeGR
— Vitalik Buterin (@VitalikButerin) June 26, 2017
This tragic "news" had a big negative effect on Ethereum's rate.
In general, Ethereum lost 14.5% in 24 hours.