Universal Patterns in the Blockchain: Analysis of EOAs and Smart Contracts in ERC20 Token Networks

TL;DR

This study uncovers universal statistical patterns in Ethereum blockchain transactions, distinguishing between human-driven and automated activities through scaling laws and distribution analysis.

Contribution

It introduces a comprehensive analysis of ERC20 token transactions revealing universal scaling laws and differences between EOA and smart contract interactions.

Findings

EOA transactions follow stable power law distributions with consistent exponents.

SC interactions show unstable scaling and heavier-tailed distributions.

Distinct statistical signatures differentiate human and automated transaction behaviors.

Abstract

Scaling laws offer a powerful lens to understand complex transactional behaviors in decentralized systems. This study reveals distinctive statistical signatures in the transactional dynamics of ERC20 tokens on the Ethereum blockchain by examining over 44 million token transfers between July 2017 and March 2018 (9-month period). Transactions are categorized into four types: EOA--EOA, EOA--SC, SC-EOA, and SC-SC based on whether the interacting addresses are Externally Owned Accounts (EOAs) or Smart Contracts (SCs), and analyzed across three equal periods (each of 3 months). To identify universal statistical patterns, we investigate the presence of two canonical scaling laws: power law distributions and temporal Taylor's law (TL). EOA-driven transactions exhibit consistent statistical behavior, including a near-linear relationship between trade volume and unique partners with stable power law exponents ($\gamma \approx 2.3$), and adherence to TL with scaling coefficients ($\beta \approx 2.3$). In contrast, interactions involving SCs, especially SC-SC, exhibit sublinear scaling, unstable power-law exponents, and significantly fluctuating Taylor coefficients (variation in $\beta$ to be $\Delta\beta = 0.51$). Moreover, SC-driven activity displays heavier-tailed distributions ($\gamma < 2$), indicating bursty and algorithm-driven activity. These findings reveal the characteristic differences between human-controlled and automated transaction behaviors in blockchain ecosystems. By uncovering universal scaling behaviors through the integration of complex systems theory and blockchain data analytics, this work provides a principled framework for understanding the underlying mechanisms of decentralized financial systems.