ChainProof: Verify crypto transactions via API in seconds

Hey Product Hunt! 👋 Maker here. I built ChainProof because I was manually verifying crypto transactions for my clients and it was a nightmare every single time. **The problem:** When someone pays in crypto, you need to verify on the blockchain that the transaction is real and confirmed. Manual = copy hash, open explorer, wait, screenshot. **The solution:** One API call. That's it. POST /api/v1/transactions/verify { "transaction_hash": "0x...", "network": "ethereum-mainnet" } → { "status": "confirmed", "confirmations": 42, "block_number": 46147 } **Live demo, no account needed:** https://api.chainproofcloud.com/... **What's special:** - 2 seconds per verification (with retry logic and caching) - Ethereum + Bitcoin (more networks coming soon) - 69 unit tests, CI/CD, daily encrypted backups - Stripe Tax integrated (automatic VAT for EU) I'm a solo founder, launched yesterday and already have my first paying customer. AMA about crypto, API design, or bootstrapping! **Links:** - Demo: https://api.chainproofcloud.com/... - API Docs: https://api.chainproofcloud.com/...