> For the complete documentation index, see [llms.txt](https://docs.mazze.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mazze.io/architecture/genesis-and-params.md).

# Genesis and params

Genesis bootstraps chain state, internal contracts, and initial balances.

## Genesis block creation

`genesis_block` performs:

* State initialization and internal contract setup.
* Funding of configured genesis accounts (including dev/test keys when used).
* Genesis treasury account creation and legacy shielded pool seeding.
* Emission of genesis transactions (create2 factory, optional legacy pool verifying key).
* A genesis message embedded in the genesis transaction data (`GENESIS_TRANSACTION_DATA_STR`).

{% hint style="warning" %}
The genesis message changed the genesis block hash. Wipe local chain state before starting a node built from the current code.
{% endhint %}

\- Construction of the genesis header with initial difficulty and gas limit.

## Explicit genesis issuance logic

Current native genesis target is 3,900,000,000 MAZZE.

In code, genesis accounting is two-step:

1. Credit explicit genesis accounts first.
2. Mint only the remaining amount needed to reach the configured genesis total.

This avoids double-counting between explicit allocations and the special genesis-account mint path.

Shielded pool bootstrap at genesis is a treasury transfer, not extra issuance. See `../tokenomics/shielded-pool-genesis-fund.md`.

## Genesis inputs

* `genesis_accounts` and `genesis_secrets` can override the account set.
* `execute_genesis` controls whether genesis is executed or loaded from db.

## Chain parameters

Configuration exposes key consensus parameters:

* `initial_difficulty`
* `era_epoch_count`
* `referee_bound`
* `adaptive_weight_beta`, `heavy_block_difficulty_ratio`
* `timer_chain_block_difficulty_ratio`, `timer_chain_beta`
* `transaction_epoch_bound`

Hardfork transitions are also configured by height/epoch.

## Chain IDs

Each space has its own chain ID (`AllChainID` holds three):

* `chain_id` for the native space;
* `evm_chain_id` for eSpace;
* `shielded_chain_id` for the shielded space, defaulting to `chain_id`. Proofs are bound to it.

## Shielded parameters

`ShieldedParams` in `CommonParams` configures the shielded lane: `shielded_activation_height` (inactive by default), `shielded_slot_epochs` (20), `shielded_max_txs_per_block` (8), the constant fee and the anchor window (100,000 epochs). See [The shielded lane](/shielded-space/shielded-lane.md#parameters).

## Key source files

* `crates/mazzecore/core/src/genesis_block.rs`
* `crates/client/src/configuration.rs`
* `crates/mazzecore/internal_common/src/chain_id.rs`
* `crates/mazzecore/parameters/src/lib.rs`
* `crates/mazzecore/parameters/src/genesis.rs`
* `crates/mazzecore/executor/src/spec.rs`