Polkadot SRB

Polkadot Staking Rewards Benchmark (DOTSRB™) Methodology

DOTSRB is a benchmark representing the annualized staking rate for the DOT token.

DOTSRB is calculated and published by Staking Rewards via the Polkadot Profile and Staking Data API.

$$DOTSRB = ar * (1 - sc) + af * (1 - tc) / price$$

Formula key	Metric name	Description
ar	Annual Rewards	The annual rewards distributed from token emission.
sc	System Fees	The system fee that applies to all emitted tokens.
af	Annualized Fees	An annualization of the fees from the last 30d.
tc	Transaction Commission	An average of the transaction commission for the last 30d.

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Polkadot Validator Staking Rewards Rate: DOTSRB(v)

Staking Rewards calculates the DOTSRB for each validator based on their individual performance and commission rate.

$$DOTSRB(v) = vep / tep * tvr / 30 * 365 / vst$$

Formula key	Metric Name	Description
$vep$/	Validator Era Points	Validator Era points for the last 30d.
tep	Total Era Points	Total Era points for all validators for the last 30d.
tvr	Total Validator Rewards	All rewards distributed to all validators for the last 30d.
vst	Validator Staked Tokens	All staked tokens in the network's validators.

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Polkadot Real Reward Rate (DOTSRB^R)

The real reward rate calculates the reward rate adjusted for inflation in the network.

$$DOTSRB^R = 1+DOTSRB/(1+i)-1$$

Formula Key	Metric name	Description
i	Inflation Rate	Total tokens added to the circulating supply in the last 365 days.

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Data Sources:

• Subscan

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References:

• Polkadot Staking Docs

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Last updated on 15/08/2024