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What is BlockDAG?

BlockDAG, inspired by Bitcoin, is the world’s most advanced layer 1 blockchain. A cutting-edge Proof-of-Work (PoW) algorithm that delivers industry-leading speeds, unbeatable security, and high decentralization.

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BlockDAG Ecosystem

Explore the best-in-class Layer 1 ecosystem, from hackathons to a rewarding grants program.

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Developer Hub

Unlock the full potential of BlockDAG with our comprehensive resources, tools, and community support.

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Testnet Awakening

We are launching the Testnet Awakening. Awakening Testnet is the proving ground where every core feature is tested and hardened before mainnet. This is where BlockDAG begins.

Dev Release-216

Release Date: August 25, 2025

Expanding Explorer Insights, EIP-4337 Paymaster & X10 Miner Updates

This release tightens our analytics loop on the Explorer, brings gasless UX closer to reality via an Account Abstraction Paymaster, and extends validation on X10 miners with structured test cases to ensure stability and consistency. On the Explorer side, we’re shipping the Overview Icons API (with clear, queryable metrics), a Daily Pending Transactions chart API optimized for large datasets, the integration of daily ERC-20 transfer stats into Overview, and new trend graphs for Transactions, Block Time, and Block Size.
 

On the protocol side, we’re implementing a configurable Paymaster smart contract aligned with EIP-4337, enabling sponsored transactions under controllable policies (whitelists, rate limits, and funding limits) while plugging cleanly into the deployed EntryPoint.
 

On devices, we’re introducing a series of X10 miner test cases covering critical scenarios such as session resets after configured mining intervals, long-idle device recovery, re-authentication handling, and seamless restart behavior. These structured tests will help validate edge cases, reduce unexpected errors, and harden device reliability for miners operating across varied conditions.

Purpose

  • Deliver a simple, cached Overview Icons API that surfaces core network metrics at a glance.
  • Expose a Daily Pending Transactions time series for charting and ops visibility.
  • Surface daily ERC-20 token transfers in the Overview for quick ecosystem read-outs.
  • Add Explorer graphs for Total/24h Transactions, Avg Block Time, Avg Block Size.
  • Implement an EIP-4337 Paymaster to enable sponsored user operations safely.

Key Highlights

  • Overview Icons API: Single endpoint returns Addresses, Transactions, New Addresses (24h), Transactions (24h), Tokens, Pending (1h), Avg Fee (24h), Contracts Deployed/Verified (total & 24h), and Total Gas Used (24h).
  • Daily Pending Txns API: Returns { date, pendingTransactions }[]; server-side aggregation and pagination for big ranges.
  • dailyERC20TokenTransfers now pipes into Overview, with a compact series/sparkline.
  • Graphs added: Cumulative Transactions, Daily (24h) Transactions, Avg Block Time, Avg Block Size, each filterable by time window.
  • EIP-4337 Paymaster: Validates ops, sponsors gas under policy, integrates with EntryPoint, and exposes operational controls.

Explorer Updates

Overview Stats & Charts API

The Explorer is evolving with the introduction of the Overview Stats & Charts API, designed to deliver a concise snapshot of the network at a glance. This API aggregates essential metrics such as the total number of wallet addresses, total transactions, new addresses created within 24 hours, daily transactions, and total tokens created. It also includes insights into pending transactions, average transaction fees, and both deployed and verified smart contracts (total and daily). By surfacing these metrics in one place, the Overview panel becomes a quick yet powerful reference point for developers, users, and analysts alike.
 

Daily Pending Transactions Chart API

A major addition is the Daily Pending Transactions Chart API, which aggregates pending transactions on a per-day basis. This endpoint returns data in a chart-ready format with date and pending transaction pairs, enabling seamless visualization of transaction backlogs over time. Optimized for large datasets, it ensures smooth performance even when working with long historical ranges. This feature helps users and operators identify congestion patterns, track mempool health, and better anticipate transaction delays during peak load.
 

Daily ERC20 Token Transfers in Overview 

We are also integrating the Daily ERC20 Token Transfers API into the Overview section. This integration brings ERC-20 token transfer data into a summarized, easy-to-digest view, allowing the community to quickly understand daily activity across tokens. With this, users gain better visibility into token adoption, liquidity movement, and network utility all within the Explorer’s main dashboard.
 

Graphs & Charts Enhancements

Finally, the Explorer is being enhanced with new graphs for Transactions, Block Time, and Block Size. These visualizations offer a deeper understanding of the network’s performance trends. The Transactions chart includes both cumulative counts and daily transaction activity, while the Block Time graph highlights average block production speeds over time. Meanwhile, the Block Size chart reveals how efficiently blockspace is being used, showcasing trends in average block data size. Together, these graphs empower users to interpret network health and scalability in a more accessible and interactive way.

Blockchain Updates

Paymaster for Account Abstraction (EIP-4337)
The Paymaster for Account Abstraction (EIP-4337) is being implemented as a production-ready solution to sponsor gas fees under well-defined policies, enabling smoother user experiences and gasless transactions where appropriate. At its core, the Paymaster flow validates user operations through validatePaymasterUserOp, checking signatures and policies before sponsoring eligible operations, which are then executed and settled by the EntryPoint contract. Policies are highly configurable, including whitelists that can be defined per dApp, per method, or per address, rate limits that enforce caps per user or global limits such as requests per second and budget ceilings, and funding thresholds with automatic top-up alerts to ensure uninterrupted service. Security and operational safeguards are built in, such as domain-separated signatures, replay protection, and nonce strategies, alongside on-chain events that log sponsorship approvals, rejections, and budget utilization for full transparency. Administrators are provided with controls to pause operations, update policies, and manage deposits or withdrawals. Designed for seamless integration with the deployed EntryPoint contract, the Paymaster also comes with clear test vectors and simulation paths, ensuring that sponsorship decisions are both safe and predictable in real-world use.

X10 Miner Updates

Test Cases & Feature Rollout Discussion

Last week, we held a dedicated call to align on the upcoming feature rollout for the X10 miner. As part of this, we’ve designed and documented a structured suite of test cases to validate miner reliability across real-world scenarios. These test cases focus on ensuring session stability, consistent re-authentication, idle recovery, and restart behavior under varying operating conditions.
 

Core Test Areas:

  • Session Expiry & Reset: Validate mining continuity after configured intervals (e.g., 4-hour sessions) and confirm smooth restart without errors.
  • Idle Recovery: Simulate overnight or long-idle states to confirm proper session refresh and device readiness on wake.
  • Re-Authentication Handling: Ensure expired tokens or sessions trigger clean re-auth flows rather than silent failures.
  • Restart & Continuity: Confirm mining resumes correctly after device or app restarts without manual intervention.
  • Telemetry & Logs: Capture detailed metrics on session expiry, token refresh events, and recovery paths for better observability.
     

These structured test cases provide a baseline for ongoing QA and help ensure miners maintain consistent performance, even under edge conditions. By hardening recovery flows and tracking telemetry, the X10 miner will be more resilient, predictable, and user-friendly in daily operations.

What’s Next

  • Overview Icons API: finalize caching/ETags; add unit tests for each metric and window.
  • Daily Pending API: enable time-bucket backfill job; expose from/to + cursors in UI.
  • ERC-20 Overview: add top-movers (24h) rollup and link to token detail pages.
  • Graphs: tooltips + CSV export; harmonize time zones; add EMA toggles for Block Time.
  • Paymaster: policy registry (whitelist + rate limits), Testnet Awakeningdry run, and monitoring hooks.

Feedback & Collaboration

We’d love your eyes on the new APIs, chart behaviors, and Paymaster policies, especially edge cases and performance under load.

Email: [email protected]
Join: Dev forums, Testnet Awakeningchannels, and governance discussion boards

Final Thoughts

Cleaner Explorer telemetry, a safer path to gas sponsorship, and a sharper eye on device edge cases. This release is about smoothing the daily experience while laying the groundwork for broader adoption. Onward block by block.