Collators aggregate parachain transactions block candidates and producing state transition proofs for validators based on those blocks.

Mythos is a specialized gaming blockchain powered by Polkadot Relay chain.

MYTH holders own and govern the protocol.

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Mythos

# Mythos Block time Methodology

## 1. Overview

Block time measures the average time interval between consecutive blocks on the Mythos blockchain, expressed in milliseconds and aggregated daily. This metric provides insights into the blockchain's performance, network health, and block production consistency. The calculation analyzes sequential block timestamps to determine how quickly the Mythos network produces new blocks, which is fundamental to understanding transaction throughput and network efficiency.

## 2. Data sources

The calculation uses:
- **Mythos blockchain block data**: Raw block records from the Mythos chain containing sequential block numbers and their corresponding production timestamps
- **Block timestamps**: Precise timestamp data indicating when each block was mined/validated on the Mythos network
- **Block sequence data**: Sequential block numbering used to establish the chronological order of block production

## 3. Step-by-step calculation

### Component A: Block data preparation
- **Purpose**: Extract and clean raw block data from the Mythos blockchain
- **Logic**: Retrieves `block_timestamp` and `block_number` from raw Mythos blockchain data. Filters out the genesis block (block number 0) because it has an anomalous timestamp at the start of Unix time that would skew calculations. Applies incremental loading logic to process only new blocks since the last run, with a configurable lookback period for data quality.
- **Key fields**: `block_timestamp` contains the precise time each block was produced, `block_number` provides sequential ordering

### Component B: Consecutive block pairing
- **Purpose**: Create pairs of consecutive blocks to enable time difference calculations
- **Logic**: Uses a lag window function ordered by `block_number` to associate each block with the timestamp of the immediately preceding block. This creates pairs of consecutive blocks necessary for calculating production intervals. Excludes the first block in the sequence since it has no predecessor.
- **Key fields**: `block_timestamp` for the current block, `previous_timestamp` from the lag function for the preceding block

### Component C: Block interval calculation
- **Purpose**: Calculate the time difference between consecutive blocks
- **Logic**: Computes the millisecond difference between each block's timestamp and its predecessor using timestamp difference functions. Truncates timestamps to daily boundaries to enable daily aggregation. Filters out any records where the previous timestamp is null (the first block).
- **Key fields**: `block_time` contains the millisecond interval between consecutive blocks, `timestamp` truncated to day for aggregation

### Component D: Daily averaging
- **Purpose**: Aggregate individual block intervals into daily average block times
- **Logic**: Groups block intervals by day and calculates the arithmetic mean of all block production times within each 24-hour period. Adds metadata fields including chain identifier and product identifier for downstream processing.
- **Key fields**: `block_time` as the daily average in milliseconds, `chain_id` set to 'mythos', `product_id` set to 'Mythos Substrate'

### Final aggregation
- **Combining components**: Sequential processing through each component, with each step building on the previous transformation
- **Currency conversion**: Not applicable - block time is measured in milliseconds, not currency
- **Time aggregation**: Daily boundaries established by truncating timestamps to day granularity, with all block intervals within each day averaged together
- **Final calculation**: For each day, the final metric equals the arithmetic mean of all millisecond intervals between consecutive blocks produced on that day, providing the average block production time for the Mythos blockchain

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

avg(block_timestamp - previous_block_timestamp)

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Block time

Block time

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