As of July 2, 2026, ERC-8004's Identity Registry has logged 36,038 registrations on Ethereum mainnet. We read that number directly from the contract at [0x8004A1…](https://etherscan.io/address/0x8004A169FB4a3325136EB29fA0ceB6D2e539a432), the same way SatoHub's own [ERC-8004 verification page](https://satohub.ai/resources/erc-8004) does. No survey, no self-reported dashboard — a call to a smart contract on mainnet.
That's the whole appeal of ERC-8004: an agent's identity doesn't have to be taken on faith. Anyone can check it. So let's check it properly, including the part that gets glossed over whenever this number shows up in a headline.
What's actually at that address
0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 is the Identity Registry — an onchain contract that mints a portable identifier for an agent, the equivalent of a passport an agent can present to a service it's never talked to before. 36,038 is the current count of identities minted through it. It's a real, standing figure you can reproduce yourself in a block explorer right now, which is more than most "agent count" claims in this space can say.
A second, separate contract sits at [0x8004BA…](https://etherscan.io/address/0x8004BAa17C55a88189AE136b182e5fdA19dE9b63) — the Reputation Registry. It's a distinct piece of infrastructure from identity, built to hold feedback signals about how an agent actually performs, rather than just whether one exists. The standard keeps the two apart on purpose: registering an identity and earning a reputation are different claims, and conflating them is exactly the kind of shortcut the Trust Rule exists to catch.
What 36,038 does and doesn't mean
Worth being precise here, because "36,038 agents" is an easy phrase to reach for and a slightly wrong one:
- ▸It counts registrations, not distinct operators. Nothing stops one team from registering many identities; the counter doesn't distinguish one operator with a hundred identities from a hundred separate teams.
- ▸It counts mints, not activity. Registering an identity is a one-time onchain action. The counter says nothing about whether any of those 36,038 identities transacted today, last week, or ever.
- ▸It says nothing about reputation. That's what the second registry is for, and registering there is a separate step an agent has to take (and separate signals other agents have to leave) after identity exists.
None of that makes the number meaningless — it makes it a specific thing: a verifiable count of how many times the register() function has been called since the registry went live. That's a real, useful floor. It just isn't a headcount of a working agent economy, and it's worth saying so every time the number gets quoted.
Why the distinction is worth repeating
SatoHub's whole reason for existing is that "verified" gets used loosely across this space — self-reported claims dressed up as confirmed ones. ERC-8004's identity registry is a genuine exception: the number is onchain, checkable, and not self-reported by anyone. The discipline that matters now is not overstating what a checkable number actually proves. An identity registration is a real signal about the identity layer maturing. It is not a signal about safety, performance, or how many of those 36,038 agents are doing anything useful — that's a different registry, and right now a much quieter one.
What to watch
The registration count will keep climbing — that's the least interesting trend to track from here. What's worth watching instead: whether the Reputation Registry starts filling in behind it, since that's the gap between an agent merely having a name onchain and having a track record onchain. Identity is the floor. Whether the field builds the rest of the structure on top of it is the question that number alone can't answer.
We track the live count on [SatoHub's ERC-8004 page](https://satohub.ai/resources/erc-8004), read straight from mainnet — check it yourself any time.