The three major inscription tokens on the Bitcoin blockchain - ORDI, SATS, and RATS each have their own characteristics and are reshaping the BTC ecosystem.

As the first inscription token on the Bitcoin chain, ORDI is based on the Ordinals protocol, with a total supply strictly limited to 21 million, maintaining the same supply cap as Bitcoin itself. ORDI introduces the concept of fungible tokens from Ethereum's ERC-20 into the Bitcoin world, greatly expanding the functional boundaries of Bitcoin. This innovation allows the Bitcoin ecosystem to support more diverse digital asset application scenarios while retaining core advantages such as decentralization and anonymity. In the Bitcoin NFT system, ORDI plays a key role and can be used to pay for inscription costs and related fees.

The SATS coin, launched in March 2023, follows the BRC-20 standard and has an astonishing issuance volume of 21 trillion. Its distribution mechanism is designed to release 100 million tokens through 21 million minting activities, and it is noteworthy that all tokens are minted for free. As the fuel token of the UniSat platform, SATS supports the transaction operations within the BRC-20 ecosystem and enjoys widespread participation and user base in the inscription market.

The RATS coin was also born in March 2023. It is a token based on the BRC-20 standard, with a total supply of 1 trillion coins. Unlike the previous two, RATS is inspired by mice and belongs to the typical meme (meme) token category. The most notable feature of this coin is its strong community cohesion, with a large number of supporters actively promoting its development. Trading data from the OKX Ordinals market shows that RATS has consistently ranked among the top three in BRC-20 trading volume. However, RATS is currently mainly used as a speculative asset and a means of community sentiment expression, and no substantial technological applications have yet been developed.

These three tokens, while each having their own focus, all represent the BRC-20 standard and are playing a unique role in the Bitcoin ecosystem, showcasing the expansion potential of the Bitcoin network beyond mere payment functions.