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Chaincode engineers develop, review, test and maintain the reference Bitcoin implementation.

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Chaincode has contributed research and design for many of the recent improvements in the Bitcoin protocol, e.g. Erlay and Compact Blocks.

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Chaincode offers online seminars and in person residencies for engineers to develop experience with Bitcoin. Chaincode has hosted several programs focused on the Bitcoin protocol, Bitcoin Core, Lightning Network applications and the Lightning protocol.

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Bitcoin Optech helps Bitcoin users and businesses integrate scaling technologies through workshops, documentation, weekly newsletters, original research, case studies and announcements.

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The Chaincode Podcast brings you interviews with the most influential Bitcoin engineers about Bitcoin protocol development.