The Reality of Sampling on the Blockchain

I’m John

Sampling on the blockchain

1. An overview (very high level)2. An example (very low level)

How does cryptography help us do better market research?

Blockchain-for-MR(any blockchain attempting sampling)

Researcher Respondent

MR

Researcher Respondent

SampleProvider

1. Profiling respondents

2. Sampling respondents

3. Paying respondents

MR

Bitcoin Network

Person A Person B

Researcher Respondent

Researcher creates a sample request including demographic targeting, survey URL, and deposits sufficient funds

Respondent’s device monitors the blockchain, sees the new request, checks to see if the respondent qualifies, and if so indicates interest

2

Blockchain runs sampling algorithm and renders an offer to the respondent

3

Respondent answers a survey via external survey engine

4

Respondent is paid6

Survey records complete onblockchain

5

1

MR

Survey Engine(e.g. Confirmit)

Block Source Event

12,056 Researcher A Create sample request (n=100, gender=male, age=18+)

12,062 Respondent 1 Asserts qualification, registers interest

12,101 Blockchain Issues offer to Respondent 1

12,117 Respondent 1 Accepts offer

12,904 Confirmit Registers complete for Respondent 1

12,904 Blockchain Deducts funds from Researcher A and pays Respondent 1

What’s on the blockchain? A transcript

Blockchain-for-MR

Researcher Respondent

Public Immutable

MR

Profile on device

The problem:How do we sample without a

respondent database?

TODO:Shared taxonomyProfile commitmentProfile validationDetermining feasibilityTargeting

“I’d like to run a 2,000 response monthly tracker against men in

Florida who drive Subarus”

Cryptographic voting schemes allow voters to keep their vote private but be

satisfied that it was counted

Let’s redo Brexit…

83946772leave

28938774remain

28930012remain

88912651leave

12230200remain

76,424,016,975…3 remain

encrypt

decrypt

3

✕

✕

✕

✕

Feasibility is like “voting” your profile

83946772female

28938774

28930012female

88912651

12230200

57% female, 39% male, 2% lawyers, etc

encrypt

lawyer

info worker

drives subaru

Why should we care?

1. If it’s possible to do our job without managing a big database of sensitive user data, then we should

End-to-end encrypted messaging

End-to-end encrypted payments

MR

End-to-end encrypted research

2. It’s a means to enable sampling on the blockchain which unlocks many other benefits

Supply chain transparencyData sovereigntyDemocratization of researchetc

Find the company at:measureprotocol.com

Find me on Twitter:@johnm