After 2.5 years traveling for work in web3, @Charchit_WEB3 got tired of buying a new eSIM in every country.
So he built @gesimxyz, a solution that lets you switch carriers in real-time and share unused data with friends.
Here's what builders can learn from their approach 🧵
Charchit spent 2.5 years traveling for work at The Graph and Gear Foundation. The fragmentation in travel eSIMs wasn't theoretical - it was a pain point he hit repeatedly across continents.
His decision to build on Zircuit came from meeting @dr_zircuit in Singapore, then again at DevConnect Thailand. Personal conversations with ecosystem builders shaped their technical direction more than docs alone.
When the Ethereum Foundation folks at ETHGlobal New Delhi showed interest, their advice was direct: "Build only in ZK-centric communities. Have your research right, have your implementation right."
They researched how Cisco, IBM, and telecom companies approach eSIM identity provisioning. Understanding the legacy infrastructure deeply informed where blockchain could actually add value vs. where it's unnecessary.
They pair ZK attestations to encrypt only the telecom parameters that matter, easing the compliance user flow. Their zkTLs approach proves usage without revealing personally identifiable information.
The team is actively prototyping an on-chain SM-DP+ that automates profile preparation, delivery, and activation through verifiable APIs. Each provisioning event leaves a transparent audit trail on-chain, replacing manual hand-offs with cryptographic accountability.
They are currently building the carrier switching prototype, launching in coming months. Not trying to ship everything at once - focused on proving the core mechanic works first.
Watch the full showcase here:
2,350
9
本页面内容由第三方提供。除非另有说明，欧易不是所引用文章的作者，也不对此类材料主张任何版权。该内容仅供参考，并不代表欧易观点，不作为任何形式的认可，也不应被视为投资建议或购买或出售数字资产的招揽。在使用生成式人工智能提供摘要或其他信息的情况下，此类人工智能生成的内容可能不准确或不一致。请阅读链接文章，了解更多详情和信息。欧易不对第三方网站上的内容负责。包含稳定币、NFTs 等在内的数字资产涉及较高程度的风险，其价值可能会产生较大波动。请根据自身财务状况，仔细考虑交易或持有数字资产是否适合您。