The history isn't searchable, but the owners of the Slack can export the complete public history at any time. Here is an export that I did when we moved Hyperle

The history isn't searchable, but the owners of the Slack can export the complete public history at any time. Here is an export that I did when we moved Hyperledger to Rocket.Chat: https://github.com/hyperledger/slack-archive https://github.com/hyperledger/slack-archive I see the hosted version is down, though.