“…Thus, transactions and agreements become traceable, transparent, and reliable without the need for a central authority, legal system, or external evaluation mechanism (Chapron, 2017;Mao, Hao, Wang, & Li, 2018;Shin et al, 2020;Wang, Dabbaghjamanesh, Kavousi-Fard, & Mehraeen, 2019). Around 2017, new São Paulo, 22(6), eRAMD210033, 2021 doi:10.1590/1678-6971/eRAMD210033 low-cost verification methods that require less time and energy emerged, for example: Proof of Authority (PoA), in which validation occurs through access keys and identification (Kabbinale et al, 2020;Kumar et al, 2020;Toyoda, Machi, Ohtake, & Zhang, 2020); Proof of Importance (PoI), used to determine which user is authorized to add new processes, which creates a specific hierarchy among users; and Proof of History (PoH), in which an algorithm creates transactions (Reyna et al, 2018;Sankar, Sindhu, & Sethumadhavan, 2017). Several authors list decentralized systems, increased transparency, traceability, and immutability as key characteristics of the blockchain (Lei et al, 2017;Sharma et al, 2018;Yli-Huumo, Ko, Choi, Park, & Smolander, 2016).…”