The first string, formatted as a Bitcoin URI scheme ("bitcoin:?lno=lno1q..."), is identified and understood in the context of Bitcoin payments. However, the sender expresses uncertainty about the nature and purpose of the second string, which starts with "822xr7q3.." and appears to be unrelated or different in format from the typical Bitcoin URI schemes or known identifiers related to Bitcoin transactions.

This situation underscores the complexity and nuance involved in handling cryptocurrencies and their associated technologies, such as DNS-based service discovery for payment addresses. It also reflects the broader challenges that developers and users may face when interacting with cryptocurrency protocols and services, especially when encountering unfamiliar data formats or protocols extensions. The sender's question implicitly seeks to clarify the understanding of these protocols, highlighting the need for better documentation or tools to interpret and use such data effectively in applications related to Bitcoin or other cryptocurrencies.