#38·Subscan Funding Proposal for the Operation and Maintenance Fees of Astar, Shiden, and Shibuya - 2025 Q2

Dear Astar Community,

We hereby submit our proposal for funding support to cover the operation and maintenance fees associated with the Subscan Explorer services provided for Astar, Shiden and Shibuya.

Service Details

Subscan has been diligently providing the following essential services for Astar, Shiden and Shibuya:

• 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

We are currently participating in Shiden staking, which has generated a total reward of 5,225.851 SDN. Based on the SDN EMA7 price of USD 0.039348, this amounts to US$ 206. This reward will be deducted from the total service fee.

We are requesting funding support from the Astar Treasury for the total due amount of US $16,491. After deducting the Shiden staking rewards, the final payable amount is US$ 16,285. The equivalent amount in ASTR will be calculated based on the EMA7 price at the time of conversion.

In addition, we are happy to participate in Astar staking in the future, and the rewards earned can also be used to offset the service fee.

Exchange Rate

2025-08-07 16:00:00 (+UTC), Block #9678369

• ASTR EMA7 Price (USD): 0.023767
• Number of ASTR: 685193.756048
  View on Subscan

Securing this financial support will ensure the continued seamless functioning of the Astar, Shiden and Shibuya and sustain their 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!