VRAMScan — Block Explorer

VRAMScan is the official block explorer for the VRAM Network. It displays real-time training windows, miner scores, validator submissions, and run history from both the live Sui testnet and the local demo.

Running VRAMScan

cd vramscan
npm install
npm run dev        # http://localhost:4322

Pages

Training Page

/training is a public-facing page for prospective miners showing:

• Pricing comparison — VRAM vs Lambda Labs, Vast.ai, CoreWeave (per-GPU hourly rates)
• Earnings calculator — estimated VRAM tokens/day by GPU type (RTX 3080 → H100)
• Training backends — Candle/CUDA/Metal/Sidecar feature flags with one-liner install commands
• Architecture overview — windowed training, gradient compression, TEE scoring, OpenSkill, token emission

Theme

VRAMScan ships with dark mode (default) and light mode. The toggle is in the Navbar (before the testnet indicator). Selection is persisted to localStorage. Colors are fully governed by CSS custom properties (--vram-bg, --vram-acc, --vram-muted, etc.).

Data Sources

VRAMScan reads from three sources:

1. Sui Testnet RPC (USE_MOCK_DATA=false)

Connects to https://fullnode.testnet.sui.io:443 and reads:

• RoundState — current window number, checkpoint hashes
• PeerRegistry — registered miners and validators
• ScoreLedger — OpenSkill scores and normalized weights
• ValidatorRegistry — validator stake and activity
• Recent transactions filtered by MoveFunction: { package: PACKAGE_ID }

2. Local Demo Feed

Proxies http://127.0.0.1:13001/api/data via /api/demo-data. Shows live miner weights as the demo runs. Falls back gracefully if demo is not running.

3. Run History

Reads .vramhub-runs/run_history.jsonl (written by vramhub-local-demo every 10 windows) via /api/run-history. Grouped by run_id (millisecond timestamp at demo start).

Configuration

Create vramscan/.env.local to override:

USE_MOCK_DATA=false
SUI_NETWORK=testnet

Testnet Object IDs (2026-03-30)