A rights and revenue router for independent musicians and micro-labels who collaborate across TikTok, YouTube, and streaming but still track splits with PDFs and group chats. Artists complain relentlessly about lost credits, delayed payments, and opaque UGC revenue, especially when songs blow up via remixes or short-form video. SplitSheet offers collaborative, legally-sound split agreements, one-click registration to PROs, distributors, and content ID systems, and an "inbox" for incoming UGC monetization and sync requests. It centralizes payouts so each collaborator connects a wallet/bank, and funds auto-split based on the agreed smart template, with dispute resolution workflows and audit logs. Revenue is a platform fee + 2–4% of collected royalties, with defensibility coming from catalog lock-in, integrations, and data on collaboration networks.