This is my first time to hear about the Rodarmor Rarity Index where every satoshi in Bitcoin is unique and they came up with this rarity tier and categorized each satoshi.
Can we relate this to Bitcoin Ordinals or Runes?
Because for my basic understanding, it's kinda of you turning your satoshi into an NFT and that satoshi has a different rarity, how rare it is.
Rodarmor is the inventor of
Ordinals.
Ordinals is a protocol for enumerating satoshis and maintaining that enumeration while accounting for transactions and fee payment. The enumeration is arbitrary. Anyone can come up with an enumeration. However, Ordinals will always dominate because it was first and it works well.
Enumerating the satoshis makes each one distinguishable from all of the others. Thus, using the Ordinals protocol, a satoshi can be treated as a non-fungible token (NFT).
With Ordinals, all satoshis are equally rare -- there is only one of each. However, they can be classified according to Rodarmor' classification system, as well as others, in order to introduce ways to establish rarity. These classifications are arbitrary. It's up to you to consider whether some satoshis are more valuable than others according to the classifications you subscribe to.
In my opinion, Ordinals is harmless as long as there is no significant number of people who take it seriously. Otherwise, the fungibility of Bitcoin could become an issue.
Rodarmor also developed a related protocol called
Inscriptions that associates data (such as text or an image) embedded in the block chain with an Ordinals satoshi.
I am not as familiar with
Runes. If I understand it correctly, it is not related to Ordinals. Instead, it is a token protocol that stores data in Bitcoin transactions via OP_RETURN. It might be interesting to compare it to CounterParty and Omni.