One number carries the identity.
Many attributes attach to it.
883 is an ITU country code for global networks. DIDWW holds an allocation; part of it is issued to FIX users. Technically DIDWW issues the number, but once the record is on a public chain, only whoever controls the keys can change it. Attributes are attested by independent providers and unlocked by a signature from the user's FIX eSIM.
A global number.
A signing key.
A chain record.
A global 883 number is issued to the user by DIDWW. It's not tied to a country or a traditional carrier — it's an ITU-allocated resource the user owns.
The user's FIX eSIM generates a keypair on-chip. The public key is written to the blockchain against the 883 number; the private key stays inside the eSIM and never leaves it.
An on-chain record links the number, the public key, and a growing set of attributes. Querying the record is free for anyone. Sensitive content — a phone number, a driver's license — is stored encrypted; only a SIM signature unlocks it. Writing costs gas and requires the same signature.
Humans hold their own 883 identity. Agents — running on server-side eSIMs — hold their own too, and act under delegated authority from a human principal. Delegations are revocable on-chain in one signed message.
Attested by whoever's best placed to attest.
The 883 record is a container. Attribute issuers plug in and write signed attestations against it. More categories come online as we sign agreements with eIDAS and KYC partners.
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Proof attests.
Proof also consumes.
Proof Holdings is the first integration — it already covers phone, domain, social-account, and crypto-wallet control. On FIX, each verification becomes a signed attestation written to the user's 883 record. The proofs travel with the user.
Proof uses the FIX eSIM as an additional signing channel — for login, 2FA, and Human-in-the-Loop encryption flows. A hardware-backed signature from the SIM, alongside Proof's existing in-browser AES + RSA flow.
See how the partners fit.
DIDWW issues the 883 numbers. Monogoto is the FIX eSIM backbone. Annatel OTA-deploys to their subscribers. Proof attests attributes. Each earns on its own terms.