Create Cross Chain Tokens with CCT Standard I Solange Gueiros

Solange Gueiros presents a Chainlink workshop on creating cross-chain tokens using the CCT (Cross-Chain Token) standard and CCIP (Cross-Chain Interoperability Protocol). She explains how Chainlink’s decentralized oracle network connects blockchains to external data and services, enabling secure interoperability. Key services discussed include data feeds, data streams, proof of reserves, Chainlink Functions (for integrating Web2 APIs), automation, and VRF (verifiable random functions).

The core focus is on CCIP, which allows secure token and message transfers across blockchains, supporting both lock/unlock and mint/burn models. The Token Manager interface simplifies deploying and managing cross-chain tokens, setting token pools, and configuring rate limits. Solange highlights the use of Chainlink Local for rapid prototyping without mainnet constraints, and encourages hackathon participants to leverage Chainlink’s services. She answers questions on supported networks, integrating DeFi protocols, and cost considerations, emphasizing documentation and community support.

00:00 Introduction

00:35 Speaker Introduction & Resources

01:14 What are Oracles?

02:21 Chainlink Services Overview

03:55 Chainlink Functions & Automation

05:20 CCIP & CCT Overview

06:47 Blockchain Interoperability Explained

08:33 Cross-Chain Token Workflow

09:39 Token Pools: Lock/Unlock vs Mint/Burn

10:08 CCIP Security Architecture

11:01 Deploying Cross-Chain Tokens with Token Manager

12:05 Token Pools & Rate Limits

12:47 Testnets & Chainlink Local

14:49 Developer Resources & Documentation

15:43 Q&A: Chainlink Functions vs CCIP

17:12 Q&A: Supported Networks & Token Manager

18:33 Q&A: Bridging Tokens & DeFi Integration

19:07 Q&A: Security, Trust, and Costs

20:30 Closing Remarks & Support

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

🇺🇸 *ETHGlobal New York*

This workshop is specifically for ETHGlobal New York, a 3-day hackathon held August 15-17, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal New York 2025 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh4Xze0ZeSWCSGsw25clPpvZ

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

✅ *Follow Chainlink*

X: https://x.com/chainlink

✅ *Follow ETHGlobal*

X: https://x.com/ETHGlobal​

Warpcast: https://warpcast.com/ethglobal

Website: https://ethglobal.com

YouTube: https://www.youtube.com/c/ETHGlobal

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

_Are you interested in Ethereum development and entrepreneurship?_

👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events

🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus

📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _