diff --git a/content/concepts/consensus-network/amendments/known-amendments.md b/content/concepts/consensus-network/amendments/known-amendments.md index dfb57f8681..64986dce77 100644 --- a/content/concepts/consensus-network/amendments/known-amendments.md +++ b/content/concepts/consensus-network/amendments/known-amendments.md @@ -15,6 +15,7 @@ The following is a comprehensive list of all known [amendments](amendments.html) | Name | Introduced | Status | |:----------------------------------|:-----------|:------------------------------| | [OwnerPaysFee][] | TBD | [In Development: TBD]( "BADGE_LIGHTGREY") | +| [fixNFTokenRemint][] | v1.11.0 | [In Development: TBD]("BADGE_LIGHTGREY") | | [DisallowIncoming][] | v1.10.0 | [In Development: TBD]( "BADGE_LIGHTGREY") | | [fixNonFungibleTokensV1_2][] | v1.10.0 | [In Development: TBD]( "BADGE_LIGHTGREY") | | [fixTrustLinesToSelf][] | v1.10.0 | [In Development: TBD]( "BADGE_LIGHTGREY") | @@ -582,6 +583,25 @@ This amendment fixes a bug in the [NonFungibleTokensV1][] amendment code where N This amendment has no effect unless the [NonFungibleTokensV1][] amendment is enabled. This amendment is obsolete because its effects are included as part of [NonFungibleTokensV1_1][]. +## fixNFTokenRemint +[fixNFTokenRemint]: #fixnftokenremint + +| Amendment | fixNFTokenNegOffer | +|:-------------|:-------------------| +| Amendment ID | AE35ABDEFBDE520372B31C957020B34A7A4A9DC3115A69803A44016477C84D6E | +| Status | In Development | +| Default Vote (Latest stable release) | No | +| Pre-amendment functionality retired? | No | + +Amendment `fixNFTokenRemint` would change the way NFT sequence numbers are constructed to prevent a situation where the same NFT could be minted more than once with the same sequence number, creating a possible collision scenario. This amendment would change the construction of NFT sequence numbers to: + +- Create a new `AccountRoot` field, `FirstNFTSequence`, that stays constant over time. This field is set to the current account sequence when the account issues its first NFT. Otherwise, it is not set. + +- Compute the sequence of a newly minted NFT as `FirstNFTSequence` + `MintedNFTokens` (after which, `MintedNFTokens` increments by 1). + +The amendment also introduces a new account deletion restriction. An account can only be deleted if `FirstNFTSequence` + `MintedNFTokens` + 256 is less than the current ledger sequence (256 was chosen as a heuristic restriction for account deletion and already exists in the account deletion constraint). Without this restriction, an NFT could still be re-minted under certain conditions. + + ## fixNonFungibleTokensV1_2 [fixNonFungibleTokensV1_2]: #fixnonfungibletokensv1_2