Sendgrid under siege from hacked accounts

Re:Sendgrid under siege from hacked accounts by bsder on Saturday August 29, 2020 @11:17PM (#24321095)

Hrm. I wonder if this is an actual use case for blockchain and proof of work.

If you want to send me an email, you have to send me an SMTPCoin. If my user doesn't mark it as spam, I give you the coin back. If my user marks it as spam, I keep the coin.

[ Parent | on HN ]

Re:Sendgrid under siege from hacked accounts by jonas21 on Saturday August 29, 2020 @11:38PM (#24321177)

Preventing email spam was in fact the original use case for proof of work.

https://en.wikipedia.org/wiki/Hashcash

[ Parent | on HN ]

Re:Sendgrid under siege from hacked accounts by _heimdall on Sunday August 30, 2020 @03:36AM (#24321962)

This was the inspirstion for nano's use of proof of work too. They don't use PoW for the chain itself but do require every transaction to include a small proof of work to avoid spamming the network, almost identical to hashcash.

[ Parent | on HN ]