🔗StaFi SRB

StaFi Staking Rewards Benchmark (FISSRB™) Methodology

FISSRB is a benchmark representing the annualized staking rate for the FIS token.

FISSRB is calculated and published by Staking Rewards via the StaFi Profile and Data API.

FIS Staking Rewards Rate: FISSRB

$$FISSRB = evr * t_y / st$$

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 FIS in the active era, sourced from on-chain era total stake.
$t_y$	Year Constant	365 eras — used to annualize the per-era reward (24-hour eras).

• FISSRB 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

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

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

---

FIS Validator Staking Rewards Rate: FISSRB(v)

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

$$FISSRB(v) = (vep / tep * tvr) / t_m * t_y / vst * (1 - c)$$

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 delegated.
$t_y$	Year Constant	365d
$t_m$	Month Constant	30d
$c$	Commission	Validator commission rate.

---

Observation Period:

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

---

FIS Real Reward Rate: FISSRB^R

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

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

Formula key	Metric name	Description
ir	Inflation Rate	Derived from on-chain era rewards: eraValidatorReward * 365 / totalSupply.

Inflation Rate Behavior

• StaFi's inflation rate is derived from actual on-chain era rewards. The protocol uses Substrate's NPoS staking model with 24-hour eras, distributing rewards to validators and nominators proportionally to their stake.

---

Other StaFi metrics calculated by Staking Rewards:

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

---

Data Sources:

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

• CoinGecko for price and circulating supply

---

References:

• StaFi Documentation

---

📚 Learn more about FIS Staking

📊 Calculate your FIS Staking Rewards

⚙️ Access historic StaFi Staking Data via API

Last updated on 03/16/2026