DLTC-COS301Coming soon🟩 Developer · L3

Cosmos & IBC Developer.

Build app-chains. Cosmos SDK, Tendermint, IBC, and CosmWasm.

DURATION
~100 hours
FORMAT
Self-paced, online
EXAM
Multi-choice + scenario
PREREQUISITE
DLTC-BD201
What this course is

The fast version.

Cosmos SDK, Tendermint consensus, the IBC protocol, CosmWasm smart contracts, and app-chain architecture.

Module breakdown

Detailed syllabus coming soon.

We're finalising the lesson-by-lesson outline for DLTC-COS301. Until then, the key topics below give you the shape of the course.

KEY 01Cosmos SDK
KEY 02Tendermint consensus
KEY 03IBC protocol
KEY 04CosmWasm
KEY 05App-chain architecture
What you'll be able to do

By the end of COS301.

Apply cosmos sdk.
Design tendermint consensus.
Evaluate ibc protocol.
Build cosmwasm.
Communicate app-chain architecture.
The certification

Verifiable. Permanent.

Pass the final exam and the credential is issued as a verifiable on-chain certificate, anchored to the DLTC registry. Your name, the course code, the issue date — all checkable by anyone with the link.

Exam: 100 multi-choice and scenario questions. 70% to pass. Two attempts included.

PrerequisiteDLTC-BD201

Blockchain Developer Associate

Solidity, EVM, Hardhat, and the deployment workflow — your first production contracts.

View prerequisite →
FAQ

Common questions.

How long does COS301 take to complete?

The programme is built for ~100 hours of focused study. Most learners pace it across 4–8 weeks, but it's self-paced — you set the speed.

Is the certificate worth anything?

The credential is verifiable on-chain through the DLTC registry. Hiring managers and partner universities can check it in one click. It is recognised by our partner network across academia and industry.

What do I need before starting?

This course requires DLTC-BD201. You should have passed it before enrolling here.

Are there discounts for students or teams?

Students: $149 with a valid institutional email. Teams of 5+: $409 per seat through corporate enrolment. Bundles offer further savings.

What if I fail the exam?

Two attempts are included. After that, retakes are available for a small fee. Most learners pass on the first attempt with full module completion.

Now enrolling · BF101 · Cohort 03

Learn the protocol.
Earn the credential.

Six modules. One exam. A certificate worth showing.

Enrol in BF101