**Previous proposals**: [Subscan Funding Proposal for Hydration Operation and Maintenance Fee - 2024 Q4 and 2025 Q1](https://hydration.subsquare.io/referenda/51)

Dear Hydration Community,

We hereby submit our proposal for funding support to cover the operation and maintenance fees associated with the Subscan Explorer services provided for Hydration during Q2 2025.

## Service Details

Subscan has been diligently providing the following essential services for Hydration:

* **Computing Resources**: Collecting and parsing chain data, and serving web user requests to ensure smooth network operations.
* **Database Storage**: Indexing and storing chain data for seamless data retrieval and accessibility.
* **Network Egress Bandwidth**: Maintaining optimal network performance to cater to web user requests.
* **Monitoring and DevOps**: Implementing an internal alerting pipeline and automation for stable network operations.
* **Node Status Monitoring and Notification**: Promptly notify the network development team of any issues.
* **Technical Support**: Offering comprehensive technical assistance for the networks' uninterrupted functioning.

## Summary of Current Charges

Following the cooperation contract and agreement signed by both parties, the details of the fees are as follows:

**Subscan Maintenance Packages** offers tiered pricing based on actual usage of data services:

* **Basic**: Up to 200 GB at \$799/month; beyond 200 GB at \$5.3/GB; upgrades automatically to the next plan after 350 GB.
* **Advanced**: Up to 500 GB at \$1,699/month; beyond 500 GB at \$5.2/GB; upgrades automatically after 750 GB.
* **Professional**: Up to 1 TB at \$2,999/month; beyond 1 TB at \$5/GB.

**Network usage** (Calculated based on the median of each quarter)

2025-Q2
![image.png](https://subsquare.infura-ipfs.io/ipfs/QmPwB2K5mGGiPbtYxgMtVTbtimtbijsnrjQeaYVseeHGF1)
![image.png](https://subsquare.infura-ipfs.io/ipfs/QmPGdBtFsAXDWRjUQ5FVTrZgJfswXqhx9TJb1mmakK1SJP)

We kindly request funding support from the Hydration Treasury to cover the total amount due of **US \$4,356.138**, and the amount of HDX will be converted based on the EMA7 price.

### Exchange rate：

* **2025-07-29 16:00:00 (+UTC)**, Block #8551732
* **HDX EMA7 Price (USD)**: 0.011026
* **Number of HDX**: 395078.723018
* [View on Subscan ->](https://hydration.subscan.io/tools/price_converter?value=4356.138&type=time&from=USD&to=HDX&time=1753804800)


Securing this financial support will ensure the continued seamless functioning of the Hydration and sustain its growth and development. Your consideration of this proposal is highly appreciated. For any further details or clarifications, please do not hesitate to contact us.

Thank you for your attention and support!

#142 Subscan Funding Proposal for Hydration Operation and Maintenance Fee: 2025 Q2