The Platform for Privacy Choice

Privaceum is using the blockchain to rethink privacy holistically. We want to change the way society understands and controls privacy in a dynamic, sensor-laden world. The Privaceum privacy trust ecosystem consists of individuals like you and me, wearables, smart devices, IoTs, and robotic devices and their manufacturers, and auditors—all interacting via a blockchain network of smart contracts to allow individuals to set privacy preferences in a wide variety of contexts and help ensure that privacy-impacting devices respect our choices.

Privacy's Challenge

We're losing privacy because we're focusing on the wrong things


Our view of privacy is all wrong

◼ Current web monetization models, along with the rise of big data techniques, have resulted in a "collect everything" mentality that erodes our very notion of privacy.

◼ Most privacy policies do little more than satisfy the legal requirements for "notice" and "consent," acting mainly as a permission slip to collect and use all possible data in whatever way the company chooses. Even when privacy settings are configurable, they are disconnected and siloed and need to be set on device after device and app after app.

◼ Regulation is an uphill battle. The GDPR represents the terminus of the notice and consent paradigm's flawed thinking. We're merely asked to "consent" to the same old behaviors, being told the data is ours with no more sense of control than before.

Causing fundamental failures

◼ Collection of private and behavioral information can lead not just to creepy ad targeting, but can provide the information necessary for targeted, individualized propaganda and manipulation (see Facebook and Cambridge Analytica).

◼ Privacy concerns and a lack of trust are beginning to hold back adoption of new technologies. Of people surveyed, 89% revealed they avoid companies they don't believe protect their privacy. Device-makers are losing out as consumers take a wait-and-see approach.

◼ Our web-derived conception of privacy will only create more damage in an ever-expanding sensor laden environment. Audio, vision, movement, and other telemetry are constantly being recorded by IoT's and autonomous agents, creating qualitatively different privacy concerns.

New ideas about identity and data monetization won't solve privacy
Privaceum in the Blockchain Ecosystem

◼ Self-sovereign digital identity is an important component of the blockchain, establishing a secure and transparent match between you and your data. In theory, this gives you ownership and control of your data. But even robust digital identity, standing alone, still provides you no control of how, where, or when the data is collected from various devices.

◼ Some believe that the ability to monetize our personal and behavioral data will solve the privacy problem. A big, red "I Consent" button linked to a blockchain wallet address will not solve privacy. It instead encourages fragmentation across many different platforms, which will only confuse customers and exacerbate the problem of data control.

◼ Attention monetization technologies can be effective in helping browser behavioral data remain private. But these technologies do not deal with off-web behaviors, physical interactions with devices in multi-person environments, or the complexities of real-life privacy expectation management.

Privaceum—The Missing Piece…

Privacy isn't just about data control, but control over the way a device interacts with you in your personal space. The option to make fine-grained privacy choices and have them respected is a fundamental step forward in true privacy control—privacy that is centered on the individual.

What is the Robiota?
Step 1:  An underlying privacy trust protocol that supports the interaction between humans and devices with smart contract technology.
Step 2:  Privacy preferences that fit our needs and expectations based on context, location, hierachy, and group. 
Step 3:  Technology that helps privacy-impacting devices align their behaviors with our expectations, using proof systems to build user trust.
Result: An ever-growing network of partnerships between communities and technology that respects and restores your privacy authority through consensus.

How It Works

Privaceum is a blockchain-based platform featuring a suite of patent pending technologies to align privacy-impacting devices with our individual, contextually-sensitive privacy expectations.

Privacy Preference Enunciator (PPE)

Users have a privacy device (mobile device or other form factor) that enunciates their presence to devices in the vicinity. Users have an individualized and context-relevant privacy rule set, accessible via the blockchain, that describes and codifies their privacy expectations. The privacy rule set is fully-customizable via the Privaceum dApp. Locations and groups can also have Context PPEs that define their expectations for users who move into their zones of influence.

Privacy-Controlled Devices (PCDs)

Manufacturers of privacy impacting devices (wearables, smart cars, cameras, smart home devices, robots) use our open source toolkit, code-named Geppetto, to enable their devices to join Privaceum's network of PCDs (we call it the Robiota). Device-makers receive a PAN certification of trust, which lets consumers know that the device will respect their privacy.

Privaceum Privacy Service

When users with a PPE move into the zone of influence of a device, Geppetto provides the PCD with access to the Privaceum Service and smart contracts to obtain the relevant privacy rule sets for users, compute their meaning, and control the device's telemetry and activities. The PCD, via Geppetto, then records control state confirmatory data to the blockchain that can be audited.

Mediation/Consensus Process

Aligning privacy expectations in a complex, multi-actor world often requires resolution of complex contexts and negotiation and consensus between individuals and groups with different expectations. The Privaceum Token empowers and quantifies a transfer of privacy authority between participants when trade-offs need to be made.

Privaceum Token

Privaceum Token empowers participant self-governance. A transfer of Privaceum Token can occur, for example, to mediate privacy preference conflicts between individuals, groups, or hierarchy chains. A transfer of token may also occur when an individual's privacy expectations need to be overridden in an emergency or within a controlled locality or event.


Third-party privacy awareness network auditors retrieve and review confirmatory data submitted by PCDs to determine if variances exist between PCDs' expected and final control states. Auditors may receive Privaceum Token for finding variances in PCD control states.

The Privacy Awareness Network (PAN)

Imagine that, when you enter a given area or context, your Privaceum dApp shows you a privacy trust score based on the presence (or absence) of privacy-impacting devices in the Robiota and their current and historical level of compliance with people's privacy expectations.

As you move from place to place broadcasting your privacy preferences, you receive an active indicator of trust — an ongoing measurement of how well a given area or context (such as a company or store) is in fact respecting your privacy preferences. You can see whether your preferences are being adhered to, ignored, or overridden from confirmatory data submitted to the blockchain by devices.

The dynamic feedback provided by the Privaceum dApp creates a “privacy awareness network” that, over time, encompasses ever-expanding contexts such as shopping, travel, healthcare, and even cities.

Find out more...

PAN Network

Meaningful Privacy with Built-in Trust

Users need to trust that devices are acting in accordance with their privacy expectations. Privaceum designs trust into the architecture with a dynamic, verifiable, and adaptive platform.



Different users have different privacy needs and expectations. Every user has a privacy preference rule base, accessible via the blockchain and configurable using the Privaceum dApp, that codifies those expectations.



Individuals' privacy expectations can change depending on circumstance. PPEs broadcast users' contextually-organized privacy preference rules so privacy-impacting devices in different environments can react appropriately.


Device Control

Devices using our toolkit take advantage of a common privacy preference architecture without reinventing the wheel. Devices retrieve privacy preference rules on detection of users' PPEs and set their control states accordingly.



Aligning privacy expectations in a complex, multi-actor world often requires negotiation and consensus. Powered by the Privaceum Token, the Privaceum platform enables transfer of privacy authority between participants when expectations need to be harmonized.


Verify and Audit

Devices in the Robiota submit confirmatory data to the blockchain about their activity state, along with a stake of Privaceum Token. Audit nodes verify the confirmatory data with respect to the users' context, preferences, and role. Users receive dynamic feedback about the trust level of nearby devices on the Privaceum dApp.



With our Daoonomy platform, members of the Robiota participate in distributed adaptive governance, working together to construct the schema, contextual hierarchy, defaults, and weightings for privacy scenarios that are contextually and culturally responsive to participants' needs.

Put Privacy Back in Your Control

Technology that lets you make your privacy expectations known


speaker_phone  Broadcast Your Privacy Presence

Use your Privacy Preference Enunciator (PPE), which can be a dedicated "Privacy Pod" device, a mobile device, or other wearable, to broadcast your demand for privacy to devices in the Robiota.

settings  Set Privacy Preferences

Our dApp helps you configure your privacy expectations as "privacy rules," which are securely shared to all the devices in the Robiota via our blockchain network. Take advantage of contextually-relevant defaults and gradually refine your personal privacy rules over time.

people_outline  Negotiate Preference Conflicts

Exchange Privaceum Token to transfer privacy authority when privacy expectations need to be harmonized in complex or multi-actor environments.

thumbs_up_down  Trust Your Environment

The Privaceum dApp will inform you of the PAN certified trust level of the devices in the environment around you.