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Ethereum Blockchain Addresses' Owners Directory

Complete KYC solution

Easily lookup an address' owner information
Simplify the interaction with ICOs, wallets, exchanges and custody services allowing a human readable address identification

Smart Contract and WebAPI access


Associate a set of addresses to its owner/controller

Link a set of addresses to predefined information 

Allows to easily identify and authenticate addresses' owners 

Allows to lookup Public Information 

Allows to share Private Information sellectivelly using a Permanent Public Key or a One Time Key

Can be accessed fron inside the blockchain calling a smart contract or from outside using web APIs

Business Model

Free Entry Level

The first Address an owner registers is registration and yearly  maintenance free

Regular Schedule

The Owner Profile Registration is free
The Verification and Lookup Services are free

Registration costs will be equivalent to USD 10 per Address per year, paid in ETH at the payment time USD/ETH exchange rate

The collection will be made by a ethWhois Blockchain Service Contract that will allow individual as well as address block collective payments

Optionally the payments can be done in USD by bank transfer


The first stage involves extensive off chain resources.

When possible, regarding speed, cost and storage capacity, the resources will be moved inside the blockchain.


Owner Registration

The Owner registers at the service using the web interface.
Optionally is submitted to a KYC and Informed Investor verification.


Account Association

Full width intro with image background, color overlay and a picture on the left. You can easily change the size of image in block parameters.


Secure Contract Execution

Any Smart Contract can verify an Address using inter contract calls to the eBSC


Off Chain Verification

The Address Owner can be verified off chain, using different APIs.


  • Off Chain Owner Registration, the registration can be partial or ready to KYC verification, the Owner defines Aliases and visibility.  (Free)
  • Off Chain Owner optional KYC Verificacion
  • Off Chain Address Association and Ownership Verification, the Owner defines Aliases and visibility. (First Address Free)
  • In Chain Address Lookup by Smart Contract Solidity Call, returns KYC status and visible Alias information.  (Free, only blockchain execution costs)
  • Off Chain Address Lookup by WebAPI call, returns KYC status and visible Alias information.  (Free)
  • Off Chain Account Alias Lookup by WebAPI, returns the associated Account Address.  (Free)
  • Off Chain Phone Number Lookup, returns the associated Account Address.  (Free)


We welcome donations, they will be used to assist in the development, implementation, Ethereum ecosystem integration, and contionuous evolution

We issued 100M ERC20 WHOIS tokens in order to bring them to the donors.

You can send ETH to this account and in 48 USA working hours you will receive back the WHOIS tokens at the sending address at a rate of 100 WHOIS per 1 ETH: 

(you can donate ETH here)

Please send your information using the Contact Form below

Addresses & Contracts

WHOIS Token Contract Address:
(please don't send ETH here) 

Donations Account Address:
(you can donate ETH here)


ethWhois is in alpha stage and will be in beta public testing in November 1, 2018

Strategic Partners

We are looking for strategic partners in order to integrate ethWhois to the Ethereum ecosystem


Ethereum Technology

The Etherereum platform and blockchain is the most reliable existing blockchain and is supported by the Ethereum Foundation, based in Zug, Switzerland and the Enterprise Ethereum Alliance based in the USA


Experienced, globally minded professionals

Eduardo Chapeta


Enrique Pallares


Eduardo Chapeta


Ricardo Espeche


Omar Hraste


Spin Offs


Project's Examples

Vision, Design, R&D, Implementation, Operation and Spin Off




4095 State Road 7
Suite L-126
33449 Wellington, Florida