Verify your Bitcoin holdings with mathematical certainty and earn a whale-tier badge you can proudly share.
No trust required. Use Bitcoin's native signature verification to prove ownership without revealing private keys.
Choose your disclosure level: from simple verification to exact amounts. Your privacy, your choice.
Get a unique whale tier badge and certificate you can share on social media. Show off your Bitcoin conviction!
Mathematical verification in under 1ms. No waiting, no intermediaries, just pure cryptographic proof.
Use your PoF verification across the HODLXXI ecosystem - OAuth, GitHub access, DAO governance, and more.
Join the public leaderboard (optional) and see where you rank among other Bitcoin holders.
Provide the Bitcoin addresses you want to verify. Up to 100 addresses supported.
Select how much you want to disclose: boolean, whale tier, aggregate, or exact amount.
Use your wallet to sign a unique challenge for each address. No private keys ever leave your wallet.
HODLXXI verifies your signatures cryptographically and issues your whale badge certificate!
Earn your status based on verified holdings.
Only shows "Verified ✓" – maximum privacy.
Shows your tier (Shrimp, Crab, Whale, etc.).
Shows rounded amount (~10 BTC, ~100 BTC).
Shows precise balance – full transparency.
Join the verified Bitcoin holders and claim your whale tier status inside HODLXXI.
Start Verification