Research Nostr Audio Course This report explores a major transition in the digital landscape where embedded custodial Lightning wallets are moving the internet from a model of information exchange to one of value exchange. By integrating the Bitcoin Lightning Network directly into social media, gaming, and podcasting platforms, developers are creating a "Financial Native" (FiNa) application layer that makes micro-transactions as effortless as sending an email. Central to this evolution is the human-readable Lightning Address, which abstracts complex cryptographic processes into simple identifiers to facilitate novel economic behaviors like "zapping" social posts or streaming payments to creators by the minute. While the text highlights the efficiency of this custodial compromise for rapid user onboarding, it also addresses the critical trade-offs regarding financial sovereignty, privacy, and regulatory oversight. Ultimately, the document characterizes these "super applications" as the primary gateways to a future where digital value is a background utility seamlessly woven into the fabric of everyday online interactions.#BitcoinLightningNetwork: The primary protocol enabling the transition from information exchange to value exchange.#LUD16: The technical standard for Lightning Addresses, which allows for human-readable identifiers like email.#WebLN: The standard for browser-based Lightning payments that allows websites to prompt users for sats.#NostrWalletConnect: The protocol (NWC) that decouples social applications from wallet backends, allowing for sovereign financial interaction.#Micropayments: The ability to send high-frequency, sub-cent transactions that were previously impossible due to high fees and friction.#ValueForValue: The V4V movement that replaces traditional advertising with direct payments from consumers to creators.#StreamingSats: The mechanism where listeners send micropayments by the minute as they consume audio or video content.#ListenToEarn: A model used by platforms like Fountain where users earn bitcoin for engaging with promoted content.#AttentionEconomy: The current model where platforms sell user attention to advertisers, which the V4V ecosystem aims to repair.#FiNaLayer: Short for "Financial Native," referring to a new class of applications where finance is an invisible, embedded utility.#NostrZaps: Refers to the "Zap" economy where real-value transactions signal support for social media content.#Podcasting20: The ecosystem supporting Fountain and other players that use the <podcast:value> tag for revenue splits.#GameFi: The integration of Lightning into gaming via providers like ZBD, allowing players to earn and spend sats across different games.#WebMonetization: Using tools like Mash or Slice to bypass traditional paywalls and ad-heavy browsing experiences.#Wavlake: The decentralized music streaming platform that allows artists to bypass labels and receive direct payments.#CustodialVsNonCustodial: The trade-off between the instant onboarding of custodial apps (like Primal or ZBD) and the sovereignty of self-custody.#LightningAddress: The "financial inbox" assigned to a digital identity, making bitcoin payments as easy as sending an email.#EmbeddedFinance: The trend of moving ledger functionality directly into the application interface to eliminate transaction friction.