BLOCKHUB ACADEMY
Certificate of Completion
This certifies that
Alan Teves Retubis
has successfully completed
Blockchain Fundamentals
Issued
September 10, 2026
Scan to verify
Serial
BLKC-8P7S-R5Q3-YJVZ
Certificate
Blockchain Fundamentals
Master the core concepts of blockchain technology: blocks, hashing, consensus mechanisms, and why immutability makes blockchains trustworthy.