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According to a Nov. 6 post on X, Cardano has chosen to use Substrate, the foundation of the Polkadot SDK, to build its partner chain project. This decision is said to come after four years of research, culminating in Cardano selecting Polkadot’s SDK, formerly Substrate, as the ideal choice due to its modular and flexible design. A self-sovereign blockchain A leading developer of Cardano, IOG goes on to describe Substrate as a “proven open-source modular framework” and will contribute a set of composable pallets to broaden its overall reach.” 1/ Cardano will use Substrate, the foundation of the Polkadot SDK, to build out its “partner chain” project — showcasing Substrate's potential to expand across Web3, and its ease of use for other chains and ecosystems ️ — Polkadot (@Polkadot) November 6, 2023 As stated by community member Goku, Midnight is likely the first adopter of these partner chain s, with a CEO who has roots back from Parity Tech. ...

Interoperability protocol Rarimo has partnered with Polygon ID, enabling the use of its verifiable credential infrastructure across multiple blockchains. Rarimo, a tool that helps different blockchains talk to each other, has joined forces with Polygon ID, a system for checking identities, to make their identity-checking tools available across many different blockchains, turning Polygon ID into a multi-chain tool. Polygon ID had previously allowed identity checks only on the blockchain where they were first set up. For example, if you made your ID on Polygon, you couldn’t use it on Ethereum (ETH), meaning users had to make a new ID for each blockchain. But now, with this partnership , IDs made on Polygon (MATIC) can be used on Ethereum. Other blockchains like BNB Chain (BNB) and Avalanche (AVAX) are also expected to join this list soon. Rarimo is excited to announce a collaboration with @0xPolygonDevs & @0xPolygonLabs’ PolygonID Polygon ID’s zero knowledge proofs are now ...