Ankr operates a global network of both full and validator nodes on an array of blockchains. These nodes provide the basis for services like Ankr Staking which delegates users’ tokens to blockchain validators and delivers liquid staking rewards (supply-side fees) to users for their contributions to validation efforts.

Ankr is a web3 infrastructure provider of blockchain API/RPC connections, developer tools, and liquid staking products. Ankr was founded and launched in 2017 by Chandler Song, Ryan Fang, and Stanley Wu.

ANKR tokenholders own and govern the protocol. They currently take a cut of the total staking rewards earned by the protocol (revenue). Ankr’s investors include Binance Labs, Block VC, MapleBlock Capital, Bixin Ventures etc.

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Ankr

# Ankr Assets staked Methodology

## 1. Overview

The assets staked metric for Ankr measures the total value of ETH assets that users have staked through Ankr's liquid staking protocol at any given time. This metric tracks the net balance of staked assets by calculating the cumulative difference between staking deposits and unstaking withdrawals for each user account. The calculation processes blockchain events from Ankr's staking contracts on Ethereum, maintains running balances over time, and converts final amounts to USD for standardized reporting.

## 2. Data sources

- **Blockchain events**: Parsed Ethereum event logs from Ankr V1 liquid staking contracts, specifically `ETHStaking_StakeConfirmed_event` and `ETHStakingV2_PendingUnstake_event` 
- **Transaction data**: Ethereum blockchain transaction records containing event emissions from Ankr staking contracts
- **External data**: End-of-day token price feeds for USD conversion and token metadata for decimal precision correction
- **Data types**: Smart contract event logs with staking amounts, account addresses, timestamps, and transaction identifiers

## 3. Step-by-step calculation

### Component A: Staking events extraction
- **Purpose**: Capture ETH deposits into Ankr's liquid staking protocol
- **Logic**: Extract `ETHStaking_StakeConfirmed_event` events from Ankr V1 Ethereum contracts. Filter out removed events (blockchain reorganizations). Map events to ETH token address and extract the `amount` field representing staked ETH. Include transaction metadata like block timestamp, transaction hash, and log index for event identification
- **Key fields**: `block_timestamp` for event timing, `address` as the staking account, `amount` as the staked ETH quantity, and contract address for protocol identification

### Component B: Unstaking events extraction  
- **Purpose**: Capture ETH withdrawals from Ankr's liquid staking protocol
- **Logic**: Extract `ETHStakingV2_PendingUnstake_event` events from Ankr V1 Ethereum contracts. Filter for events where `isAETH` flag is true to identify valid unstaking requests. Filter out removed events. Map events to ETH token address and extract the `amount` field, applying negative values to represent withdrawals
- **Key fields**: `block_timestamp` for event timing, `address` as the unstaking account, `amount` as the unstaked ETH quantity (negated), and `isAETH` flag for validation

### Component C: Event consolidation and decimal correction
- **Purpose**: Combine staking and unstaking events into a unified transaction history with proper decimal precision
- **Logic**: Union staking events (positive amounts) with unstaking events (negative amounts) to create a complete transaction history. Apply decimal correction using token metadata to ensure amounts are properly scaled based on ETH's 18 decimal places. Group events by transaction hash, log index, account address, chain, and token address
- **Key fields**: Corrected `amount` values with proper decimal scaling, `account_address` for user identification, and `token_address` for asset classification

### Component D: Daily aggregation and gap filling
- **Purpose**: Calculate net daily staking activity and maintain continuous time series
- **Logic**: Truncate event timestamps to daily boundaries and sum net amounts by account address, chain, and token address for each day. This produces daily net staking amounts (positive for net staking, negative for net unstaking). Fill missing days with zero amounts to ensure continuous time series data for accurate balance calculations
- **Key fields**: Daily `timestamp` boundaries, `account_address` for user tracking, `token_address` for asset identification, and `net_amount` for daily net activity

### Component E: Running balance calculation
- **Purpose**: Maintain cumulative staked balances for each account over time
- **Logic**: Apply window function with cumulative sum over daily net amounts, partitioned by account address, chain, and token address, and ordered by timestamp. This creates running balances that reflect the total staked amount for each user at any point in time. Balances increase with staking events and decrease with unstaking events
- **Key fields**: `balance` as the cumulative staked amount, partitioned by `account_address`, `chain`, and `token_address`

### Final aggregation
- **Combining components**: The methodology processes individual account balances from the running balance calculation
- **Currency conversion**: Convert ETH balance amounts to USD using end-of-day price feeds matched to the timestamp, applying appropriate decimal corrections
- **Time aggregation**: Maintain daily granularity with proper timestamp boundaries and gap-filling to ensure complete time series
- **Final calculation**: The final assets staked value represents the USD value of total ETH balances held in Ankr's liquid staking protocol across all user accounts, calculated as the sum of individual account running balances converted to USD at daily price rates

*This methodology was automatically generated by Token Terminal's methodology analyzer.*

Value of assets staked or restaked through the project.

AnkrANKR

Assets staked

Assets staked

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