{"slug":"buildspace-ens-on-polygon-cohort-intan","type":"nft","standard":"ERC721","network":"polygon","contract":"0x3CD266509D127d0Eac42f4474F57D0526804b44e","tokenId":"21044","collection":"buildspace: Build a domain service on Polygon | Cohort Intan | #9","symbol":"BUILDSPACE","holder":"0x42C137538bEe9d7eca612b41A807b5FB7B863C20","externalUrl":"https://buildspace.so","significance":"On-chain completion proof of buildspace \"Build a domain service on Polygon\" course (Cohort Intan, student #9 — early cohort). Building an ENS-like naming system from scratch on Polygon. Matches the buildspace certification dated 2022-07.","verifiedVia":"Alchemy NFT API on Polygon mainnet","verifiedAt":"2026-04-29"}