On Bitcoin, and specifically on the Lightning Network, the RGB (Really Good Bitcoin) protocol will be launched, allowing assets to be brought to the Lightning Network, specifically USDT. Before the introduction of the RGB protocol, the following were introduced:

-Ordinals: a system that allows each individual satoshi to be identified and numbered, making them unique and traceable.

-Inscription: the process of inscribing a file or data (such as images, text, videos) directly onto a satoshi using Ordinals. The BRC-20 standard allows the creation of fungible tokens using Inscription and JSON scripts.

-Runes: a token protocol on Bitcoin that aims to be more efficient and scalable than BRC-20, without using Inscription (it uses UTXO).

All of these solutions were not very scalable. RGB, on the other hand, does not rely on miners and full nodes to verify the rules of a smart contract (as is the case on Ethereum), but all the logic is executed off-chain by user clients. Bitcoin is used solely as a timestamping and ordering tool: on-chain transactions contain a cryptographic reference (hash) that certifies the transfer of a certain asset, but the transaction details (asset, quantity, recipient, and recipient) are off-chain (off-chain proofs are created). Bitcoin full nodes only see a random hash, but thanks to that hash, they can prove to third parties that they are the new owner of the token in question. This approach makes the solution much more scalable: the blockchain simply stores a small reference per transaction (a few bytes), rather than megabytes of data. Furthermore, external observers have no visibility into which assets are being transferred or in what quantities (only participants in a token exchange know the details).

RGB is designed to work with the Lightning Network, so it will be possible to send RGB tokens. USDT, once issued in RGB format, can be moved from one user to another instantly, with a fee of just a few sats. This solution could lead to a kind of DeFi on Bitcoin (lending, farming, token, derivatives) traded via Lightning channels with RGB, all without congesting the blockchain.

Are you interested in ways to earn crypto bonus? Check it out here: Some Sites To Earn Crypto Bonus (Old & New)