Taking a look at the three kinds of BIPS:
There are three kinds of BIP:
- A Standards Track BIP describes any change that affects most or all Bitcoin implementations, such as a change to the network protocol, a change in block or transaction validity rules, or any change or addition that affects the interoperability of applications using Bitcoin. Standards Track BIPs consist of two parts, a design document and a reference implementation.
Ordinals does not affect most or all Bitcoin implementations, so it shoudn’t be a Standards Track BIP.
- An Informational BIP describes a Bitcoin design issue, or provides general guidelines or information to the Bitcoin community, but does not propose a new feature. Informational BIPs do not necessarily represent a Bitcoin community consensus or recommendation, so users and implementors are free to ignore Informational BIPs or follow their advice.
Ordinals is essentially an application-level technology, so I think it fits into “guidelines or information”, and doesn’t propose a new feature, so I think it should be a Informational BIP. For example, see BIP-32, Hierarchical Deterministic Wallets. Anyone is free to use HD wallets, or not, similar to ordinals, so I think Informational BIP fits best.
- A Process BIP describes a process surrounding Bitcoin, or proposes a change to (or an event in) a process. Process BIPs are like Standards Track BIPs but apply to areas other than the Bitcoin protocol itself. They may propose an implementation, but not to Bitcoin’s codebase; they often require community consensus; unlike Informational BIPs, they are more than recommendations, and users are typically not free to ignore them. Examples include procedures, guidelines, changes to the decision-making process, and changes to the tools or environment used in Bitcoin development. Any meta-BIP is also considered a Process BIP.
Ordinals does not require consensus and users are free to ignore ordinals, so this shouldn’t be a Process BIP.