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# Settlus Block time Methodology

## 1. Overview

The Settlus block time metric measures the average time interval between consecutive blocks produced on the Settlus blockchain, aggregated daily. This metric indicates the blockchain's block production efficiency and network performance. The calculation determines the time difference between each block and its predecessor, then averages these intervals across all blocks produced each day to provide a daily average block time in milliseconds.

## 2. Data sources

- **Settlus blockchain data**: Raw block data from the Settlus blockchain containing block numbers and timestamps for each produced block
- **Chain availability filters**: Token Terminal's data quality standards that ensure reliable blockchain data coverage

## 3. Step-by-step calculation

### Component A: Block data extraction
- **Purpose**: Extract and prepare block timestamp and number data from the Settlus blockchain
- **Logic**: Raw Settlus blockchain block data is filtered to exclude the genesis block (block number 0), which has a timestamp at the start of Unix time that would skew calculations. Block timestamps are cast to proper timestamp format and block numbers to integers. Only blocks with valid block numbers greater than 0 are included.
- **Key fields**: `block_timestamp` (when the block was produced) and `block_number` (sequential block identifier)

### Component B: Consecutive block pairing
- **Purpose**: Pair each block with its immediately preceding block to enable interval calculation
- **Logic**: Using a lag window function ordered by block number, each block is paired with the timestamp of the previous block in the sequence. This creates pairs of consecutive blocks where the time difference can be calculated. Blocks without a previous block (the first block after genesis) are filtered out.
- **Key fields**: `block_timestamp` (current block time), `previous_timestamp` (preceding block time), `block_number` (for ordering)

### Component C: Block interval calculation
- **Purpose**: Calculate the time interval between each pair of consecutive blocks
- **Logic**: For each valid pair of consecutive blocks, the time difference is calculated in milliseconds using the difference between the current block timestamp and the previous block timestamp. Block timestamps are truncated to daily boundaries for subsequent aggregation. Only pairs with valid previous timestamps are included.
- **Key fields**: `timestamp` (daily boundary), `block_time` (interval in milliseconds)

### Final aggregation
- **Combining components**: Block intervals from the same day are grouped together for averaging
- **Currency conversion**: Not applicable - block times are measured in milliseconds
- **Time aggregation**: Block intervals are grouped by daily boundaries (using timestamp truncation to day level) and averaged using the mean function
- **Final calculation**: The daily average block time is calculated as the arithmetic mean of all block intervals that occurred within each calendar day, resulting in the average milliseconds between consecutive blocks for that day. The result includes standard Token Terminal metadata fields identifying Settlus as a layer-2 blockchain in the blockchain business segment, and applies data quality filters to ensure reliable coverage.

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

avg(block_timestamp - previous_block_timestamp)

Settlus

Block time

Block time

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