{% endhint %}
#### **Block provisions**
To calculate the number of $CRO emitted to delegators at each block, we need to divide the Annual Provisions by the expected number of blocks per year (`blocks_per_year`, an be queried at any time [at this endpoint](https://rest.mainnet.crypto.org/cosmos/mint/v1beta1/params))
The resulting number is called the "Block Provision":
```
Reward per block = Block Provision = Annual provisions / Expected blocks per year
```
This can be seen in the [following code](https://github.com/cosmos/cosmos-sdk/blob/main/x/mint/types/minter.go#L80) in the CosmosSDK:
```
m.AnnualProvisions.QuoInt(math.NewInt(int64(params.BlocksPerYear)))
```
### **Total and Circulating** **Supply of $CRO**
* The **Total Supply** refers to the total amount of $CRO that has been created on Cronos POS chain;
* The **Circulating Supply** refers to the total supply minus the amount stored in the "[burn address](https://cronos-pos.org/explorer/account/cro1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqtcgxmv)", which has effectively been taken out of circulation by [community burn governance proposals](https://blog.cronos-pos.org/p/cro-community-burn-proposal-explainer), i.e.
```
Circulating Supply = Total supply - [$CRO balance held in the burn address]
```
{% hint style="info" %}
**Easy to use endpoints to query $CRO supplies:**
* The current **total supply** of $CRO can be obtained [here](https://cronos-pos.org/explorer/api/v1/supply/total).
* The current **circulating supply** of $CRO can be obtained [here](https://cronos-pos.org/explorer/api/v1/supply/circulating).
* The current **burned amount** of $CRO can be obtained [here](https://cronos-pos.org/explorer/api/v1/supply/burned).
*Note -* This number is provided in `basecro`, where *1 CRO = 10^8 `basecro`* on the Cronos POS chain.
* Total burned amount and progress can be found in the [Cronos Burninfo page](https://burninfo.cronos-pos.org/).
{% endhint %}
***
`mint` module: Queries
#### Queries
**Query the current minting annual provisions value**
We can query the current minting annual provisions value, for example:
{% tabs %}
{% tab title="curl" %}
```
$ curl -X GET "https://rest.mainnet.crypto.org/cosmos/mint/v1beta1/annual_provisions"
{ "annual_provisions": "100346483960386394.920000000000000000" }
```
implies that the current minting annual provisions will be 100346483960386394 basecro ( i.e. `1,003,464,839` CRO)
{% endtab %}
{% tab title="chain-maind cli" %}
```
$ chain-maind query mint annual-provisions
100346483960386394
```
{% endtab %}
{% endtabs %}
**Query the current minting inflation value**
We can query the current minting inflation value, for example:
{% tabs %}
{% tab title="curl" %}
$ curl -X GET "https://rest.mainnet.crypto.org/cosmos/mint/v1beta1/inflation"
{
"inflation": "0.037000000000000000"
}
implies that the inflaction rate is `3.7%`
{% endtab %}
{% tab title="chain-maind cli" %}
```
$ chain-maind query mint inflation
0.037000000000000000
```
implies that the inflaction rate is `3.7%`
{% endtab %}
{% endtabs %}
**Query the current minting parameters**
We can query the current query parameters by
{% tabs %}
{% tab title="curl" %}
$ curl -X GET "https://rest.mainnet.crypto.org/cosmos/mint/v1beta1/params"
{
"params": {
"mint_denom": "basecro",
"inflation_rate_change": "0.100000000000000000",
"inflation_max": "0.037000000000000000",
"inflation_min": "0.012000000000000000",
"goal_bonded": "0.600000000000000000",
"blocks_per_year": "6311520"
}
}c
{% endtab %}
{% tab title="chain-maind cli" %}
```
$ chain-maind query mint params --output json | jq
{
"mint_denom": "basetcro",
"inflation_rate_change": "0.100000000000000000",
"inflation_max": "0.037000000000000000",
"inflation_min": "0.012000000000000000",
"goal_bonded": "0.600000000000000000",
"blocks_per_year": "6311520"
}
```
{% endtab %}
{% endtabs %}
***
#### Appendix
**`gov` module: Network Parameters and configuration**
The following tables show overall effects on different configurations of the mint related network parameters:
| | `blocks_per_year` | `goal_bonded` | `mint_denom` |
| -------------------- | ---------------------------------- | ------------------------------------ | ------------ |
| Type | string (uint64) | string (dec) | string |
| Higher | More expected blocks per year | Higher target bonding ratio | N/A |
| Lower | Less expected blocks per year | Lower target bonding ratio | N/A |
| Constraints | Value has to be a positive integer | Value has to be less or equal to `1` | N/A |
| Sample configuration | `5256000` (5,256,000 blocks) | `0.66` (66%) | `basecro` |
| | `inflation_max` | `inflation_min` | `inflation_rate_change` |
| -------------------- | ------------------------------------- | ------------------------------------ | --------------------------------------------- |
| Type | string (dec) | string (dec) | string (dec) |
| Higher | Higher ceiling for the inflation rate | Higher floor for the inflation rate | Higher yearly rate of change to the inflation |
| Lower | Lower ceiling for the inflation rate | Lower floor for the inflation rate | Lower yearly rate of change to the inflation |
| Constraints | Value has to be less or equal to `1` | Value has to be less or equal to `1` | Value has to be less or equal to `1` |
| Sample configuration | `0.02` (2%) | `0.01` (1%) | `0.01` (1%) |
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