| Number | Title | Created | Authors | Status |
|---|---|---|---|---|
| CIP 20 | Transaction message/comment metadata | 13 June 2021 | Martin Lang, Ola Ahlman, Andrew Westberg | Active |
| CIP 83 | Encrypted Transaction message/comment metadata (Addendum to CIP-0020) | 08 December 2022 | Martin Lang, Ola Ahlman, Andrew Westberg, Adam Dean | Active |
| CIP 86 | NFT Metadata Update Oracles | 01 November 2022 | Nicolas Ayotte, George Flerovsky, Samuel Williams | Proposed |
