Mastering Blockchain - Second Edition

Transport layer

This layer is responsible for managing payment transactions. Protocols such as Optimistic Transport Protocol (OTP), Universal Transport Protocol (UTP) and Atomic Transport Protocol (ATP) are available currently for this layer. OTP is the simplest protocol, which manages payment transfers without any escrow protection, whereas UTP provides escrow protection. ATP is the most advanced protocol, which not only provides an escrowed transfer mechanism but in addition, makes use of trusted notaries to further secure the payment transactions.