🔐zkVerify SRB

zkVerify Staking Rewards Benchmark (VFYSRB™) Methodology

VFYSRB is a benchmark representing the annualized staking rate for the VFY token.

VFYSRB is calculated and published by Staking Rewards via the zkVerify Profile and Data API.

VFY Staking Rewards Rate: VFYSRB

$$VFYSRB = evr * t_y / st$$

Formula Key	Metric Name	Description
evr	Era Validator Reward	The total reward distributed to all validators for the previous era, sourced directly from on-chain storage.
st	Staked Tokens	The total staked VFY in the active era, sourced from on-chain era total stake.
$t_y$	Year Constant	1460 eras — used to annualize the per-era reward (6-hour eras, same as Kusama).

• VFYSRB is non-compounded, excluding returns from reinvestment of rewards.

• The reward rate is derived from actual on-chain era rewards, not from an inflation model estimate.

• Both claimed and unclaimed rewards are included.

Slashing

• VFYSRB does not factor in the possibility of slashing occurrences.

• zkVerify implements Substrate's standard slashing mechanism. Validators can be slashed for equivocation or prolonged unresponsiveness.

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VFY Validator Staking Rewards Rate: VFYSRB(v)

Staking Rewards calculates the VFYSRB for each validator based on their individual era points (performance) and commission rate.

$$VFYSRB(v) = (vep / tep * tvr) / t_m * t_y / vst$$

Formula key	Metric Name	Description
$vep$	Validator Era Points	Validator era points accumulated in the observation period.
tep	Total Era Points	Total era points for all validators in the observation period.
tvr	Total Validator Rewards	All rewards distributed to all validators in the observation period.
vst	Validator Staked Tokens	Validator staked tokens, self-staked and nominated.
$t_y$	Year Constant	365d
$t_m$	Month Constant	30d

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Observation Period:

1. The VFYSRB is determined based on the latest completed era at the evaluation point.

2. This data is then annualized for a comprehensive year-long projection.

Calculation

The calculation happens every 6 hours and is immediately published via Data API.

Limitations

1. VFYSRB employs a 365-day convention for annualizing era reward data. This convention remains consistent and does not accommodate adjustments for leap years.

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VFY Real Reward Rate: VFYSRB^R

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

$$VFYSRB^R = 1+VFYSRB/(1+ir)-1$$

Formula key	Metric name	Description
ir	Inflation Rate	Fixed at 2.5% annually, as defined in the zkVerify runtime configuration.

Inflation Rate Behavior

• zkVerify uses a fixed 2.5% annual inflation rate. All inflation is distributed to validators and nominators — there is no system fee or treasury allocation. 70% of transaction fees are burned, with the remaining 30% going to the block author.

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Other zkVerify metrics calculated by Staking Rewards:

Metric	Description
Delegated Tokens	The number of VFY tokens nominated to validators.
Self Staked Tokens	The number of VFY tokens staked by validators directly.
Staking Wallets	Total number of nominators on-chain.

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Data Sources:

• zkVerify Substrate RPC (on-chain staking pallet queries via py-substrate-interface)

• CoinGecko for price and circulating supply

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References:

• zkVerify Documentation

• zkVerify Staking FAQ

• zkVerify Token

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📚 Learn more about VFY Staking

📊 Calculate your VFY Staking Rewards

⚙️ Access historic zkVerify Staking Data via API

Last updated on 03/13/2026