What Is a Layer-1 Blockchain? The Base Layer Powering Bitcoin and Crypto Layer-1 blockchains are the base networks that secure and record every crypto transaction, powering Bitcoin, Ethereum, and beyond. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Filed under: Altcoins - @ November 23, 2025 6:00 pm