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Fig. 7 | Research and Practice in Technology Enhanced Learning

Fig. 7

From: Managing lifelong learning records through blockchain

Fig. 7

PoW computational complexity over time on BOLL. This figure shows the growth of the Proof-of-Work (PoW) over time as more blocks get added to the blockchain. We note that the PoW time complexity does not usually grow, but in some cases reduces depending on the availability of computational resources

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