⭐Starknet SRB

Starknet Staking Rewards Benchmark (STRKSRB™) Methodology

STRKSRB is a benchmark representing the mean, annualized staking rate across all active Starknet validators.

STRKSRB is calculated and published by Staking Rewards via the Starknet Profile and Staking Data API.

STRK Staking Rewards Rate: STRKSRB

$$STRKSRB = (10*mip) / \sqrt{(st/ts)}$$

Formula key	Metric name	Description
mip	Max Inflation Percentage	The maximum theoretical inflation percentage.
st	Staked Tokens	The total tokens staked including tokens staked by validators and delegated by delegators.
ts	Total Supply	The total STRK token supply.

Slashing

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

• It's important to note that if validator entities face slashing, rewards will increase, as the slashed tokens are reallocated among validators.

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STRK Validator Staking Reward Rate: STRKSRB(v)

Staking Rewards calculates the STRKSRB for each validator based on their individual commission.

$$STRKSRB(v) = STRKSRB *(1-cr)$$

Formula key	Metric name	Description
cr	Commission Rate	The percentage commission rate the validator has set as a delegation fee for all delegators.

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Observation Period:

• The STRKSRB is determined based on the latest generated block at the point of evaluation.

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

Calculation

The calculation happens every 1o minutes and is immediately published via Staking Data API.

Limitations

• STRKSRB excludes rewards accrued from on-chain fees.

• STRKSRB employs a 365-day convention for annualizing current slot times. This convention remains consistent and does not accommodate adjustments for leap years.

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STRK Real Reward Rate: STRKSRB^R

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

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

Formula key	Metric name	Description
ir	Inflation Rate	The annual provisions divided by the circulating supply.

Inflation Rate Behavior

• Starknet's inflation mechanism caps annual inflation at 4%, with a minting rate proportional to the square root of the staking rate—ensuring that the more tokens are staked, the higher the total minting but the lower individual staking rewards as a percentage. The minting curve aims to strike a balance between the needs of rewarding stakers and setting inflation expectations on Starknet.

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Other Starknet metrics calculated by Staking Rewards:

Metric	Description
Delegated Tokens	The number of STRK tokens delegated to validators.
Self Staked Tokens	The number of STRK tokens self-staked by validators directly.
Staking Wallets	The total number of unique delegations on-chain.

Data Sources:

• Staking Rewards from indexed Starknet Blockchain RPC Endpoints

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References:

• https://docs.starknet.io/staking/overview/

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Last updated on 11/25/2024