This URL is from 24 April 2020. We rewrote it in August 2026 because the original read like a project homepage: eras, academic papers, and a promise of what would ship. Some of that shipped. Some of it took years. We expanded the page in October 2026 so it explains the machine you can actually use. None of it is a price thesis.
The machine
Cardano is a public blockchain that uses proof of stake. ADA is the native asset. You pay fees with it. People who want to help produce blocks delegate stake to a pool, or run a pool. Smart contracts arrived years after Ethereum, with the Alonzo upgrade in 2021. The culture advertised that delay as care. Care is not the same as bug-free, and “peer-reviewed” is not a warranty on the application you are about to click.
Cardano’s ledger is closer to Bitcoin’s notes than to Ethereum’s running account. Each unspent output can carry coins and, later, data and native tokens. You do not “call a contract that sits on an account” in the Ethereum sense. You spend an output that includes the program’s conditions. That is why Cardano tutorials feel different, and why an Ethereum mental model will mis-predict fees, minimums, and what a wallet is doing.
Staking, without the brochure
In a non-custodial wallet, delegating ADA to a stake pool does not send the ADA away. The coins stay under your keys. You are pointing your stake at a pool that produces blocks. Rewards are not instant: Cardano works in epochs of about five days, and there is a warm-up of a couple of epochs before rewards show up. Rewards can change. A pool can miss blocks. A pool operator can retire. None of that is a guaranteed yield.
A custodial app that “stakes ADA for you” adds a company in the middle. Then you have an IOU plus a yield line. Staking is a lock and a queue, not a savings account is the category. This paragraph is the Cardano-shaped version: delegation here is not Ethereum’s 32 ETH deposit, and it is not a lock that prevents you spending the ADA, in the ordinary non-custodial design.
Native tokens are not ADA, and they are not ERC-20s
Cardano can record other assets on the same ledger without a separate token contract of the Ethereum kind. Those native tokens still are not ADA. A wallet that shows both can still confuse a send. Sending a native token also requires a minimum amount of ADA to travel with it. That minimum is a protocol rule so outputs are not dust. It can look like the token “ate” a little ADA. It did not. The ADA is locked to that output until you spend it.
What to check before a send
Cardano addresses are not Ethereum addresses. Shelley-era addresses often start with addr1. A payment address and a stake address are different strings; the stake address is how delegation is identified, not where you paste a withdrawal. Exchanges sometimes use a shared address plus a memo or destination tag. Omit it and the deposit can sit in a lobby. Copy the network, the address, and the memo from that venue’s deposit screen.
If you cannot say whether you hold keys or an app balance, read how crypto wallets actually work before the amount matters. Then send a test you can shrug at.
How to read Cardano coverage
Roadmaps, “eras”, and partnership rumours are easy to confuse with a product you can use today. Ask what is live, who can upgrade it, and what a mistake costs. For how a programmable chain feels in ordinary language, Ethereum without the jargon is still the clearest map. This page is the Cardano-shaped difference.
Information only — not a recommendation to buy or stake ADA.
