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Blockchains (L2)

Nodle

# Nodle Block time Methodology

## 1. Overview

Block time measures the average time interval between consecutive blocks on the Nodle blockchain, expressed in milliseconds and aggregated daily. This metric indicates the blockchain's block production speed and network performance. The calculation determines the time elapsed between each block and its predecessor, then averages these intervals within each day to provide a daily block time metric.

## 2. Data sources

- **Nodle blockchain block data**: Raw block records from the Nodle blockchain containing block numbers and timestamps for each produced block
- **Block metadata**: Block sequence numbers and production timestamps that enable interval calculations between consecutive blocks

## 3. Step-by-step calculation

### Component A: Block data preparation
- **Purpose**: Extract and clean block timestamp and number data from raw Nodle blockchain records
- **Logic**: Retrieves block timestamps and block numbers from Nodle blockchain data, casting fields to appropriate data types (`timestamp` and `integer` respectively). Excludes the genesis block (block number 0) which has an artificial timestamp at the start of Unix time that would skew calculations
- **Key fields**: `block_timestamp` (when the block was produced), `block_number` (sequential block identifier)

### Component B: Consecutive block pairing  
- **Purpose**: Create pairs of consecutive blocks to enable time interval calculations
- **Logic**: Uses a lag window function ordered by block number to associate each block with the timestamp of the previous block. This creates paired records where each block has both its own timestamp and the timestamp of the preceding block
- **Key fields**: `block_timestamp` (current block time), `previous_timestamp` (timestamp of the previous block), `block_number` (for ordering)

### Component C: Block time interval calculation
- **Purpose**: Calculate the actual time elapsed between consecutive block productions
- **Logic**: Computes the time difference in milliseconds between each block timestamp and the previous block timestamp using timestamp difference functions. Filters out the first block in the sequence since it has no predecessor. Truncates block timestamps to daily boundaries for subsequent aggregation
- **Key fields**: `block_time` (milliseconds between consecutive blocks), `timestamp` (daily boundary for aggregation)

### Final aggregation
- **Combining components**: Individual block time intervals are grouped by day and averaged to produce a single daily block time metric
- **Currency conversion**: Not applicable for time-based metrics
- **Time aggregation**: Block times are aggregated to daily boundaries using the day-truncated timestamp, with all block intervals within each day averaged together
- **Final calculation**: The final metric is the average of all individual block time intervals (in milliseconds) that occurred within each day, providing a daily average block production time for the Nodle blockchain

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

avg(block_timestamp - previous_block_timestamp)

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