Long before I ever heard of crypto, I thought every kid grew up with a piggy bank.
Mine was bright yellow.
Every Lunar New Year, every lucky envelope, every little bit of money my grandparents gave me went straight into it. I never bothered counting how much was inside. I just knew it was mine, so I felt safe leaving it there.
Then one day, it disappeared.
I cried for days. Not because I knew exactly how much money I’d lost, but because it was the first time I realized something important:
If someone else can take your money without your permission, you never truly owned it in the first place.
Years later, after entering crypto, that childhood memory suddenly made sense.
Most people buy crypto, see a balance on an exchange, and assume they own those assets. But in many cases, what you really own is just an IOU in the exchange’s database. The exchange controls the private keys, meaning it ultimately controls your funds.
That’s why the phrase “Not your keys, not your coins” exists.
After reading Grvt’s latest article on self-custody, I think they explained this concept surprisingly well.
Instead of simply saying users own their assets, they break down why.
On Grvt, your funds don’t sit on the exchange’s balance sheet. They live inside on-chain smart contracts. The only thing that can authorize those funds to move is a valid signature generated by your private key.
Grvt operates the matching engine, provides the trading experience, and settles trades on-chain, but it cannot sign transactions on your behalf. It doesn’t hold your private key, which means it cannot move, redirect, or spend your funds.
That, to me, is the real meaning of self-custody.
It’s like having that childhood piggy bank again—except this time, no one can quietly pick it up and walk away. The piggy bank lives on-chain, and the only key that can open it has always been yours.
$ETH #grvt @grvt_io