While it would be time consuming and requires reliable 'nodes' (people) it ocurrs to me that security would be even higher as there is no automation available for cracking letters.
Which are your blogs of choice?
I want to get back into blockchain dev with some kind of course or certification on my CV. Are there any widely recognised organisations that might provide these? The three I've found so far that seem to carry any weight are:
https://blockchain-training.co.uk/certifications/
https://www.blockchain-council.org/certifications/certified-blockchain-professional-expert/#1531892507336-b4edea1a-cff0
https://cognitiveclass.ai/courses/course-v1:developerWorks+BC0101EN+v2
https://cognitiveclass.ai/courses/course-v1:IBMDeveloperSkillsNetwork+BC0201EN+v2