Definition. The Value per Byte metric is a tool that attempts to model the relative value capture-to-data efficiency of a blockchain over time. The chart plots Ethereum's Market Cap (black) against three levels which have historically bounded Ethereum's performance: the Baseline at $1.00 per Byte (blue), the Top at $5.00 per Byte (red), and the Bottom at $0.15 per Byte (green).

Technical. The data footprint of a blockchain is a function of the network's data efficiency (protocol engineering) and the type and usage of applications deployed on top (demand and application engineering) — especially relevant for smart contract blockchains like Ethereum, where the design space for applications is very large:

• Value per Byte = Market Cap / cumsum(Block Size)
• Bands mark the market cap consistent with capturing $1.00, $5.00 and $0.15 in value per byte of blockchain data.

Interpretation. When a blockchain is very 'efficient' by this metric, it captures a large amount of value (high market cap) compared to a relatively small data footprint, returning a high value per byte. Conversely, poor efficiency suggests low value capture per byte stored, returning a low value. Market cap trading near the $5/Byte ceiling has historically coincided with cycle peaks — the market pricing a maximal premium on Ethereum's data footprint — while approaches to the $0.15/Byte floor have marked deep-value conditions where valuation compresses relative to the chain's accumulated data. Note that structural changes to data usage (e.g. rollup data posting) can shift the byte denominator's growth rate over time.

Notes. Coined by Permabull Nino. Built from Market Cap and Block Size.