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PSP61 #1

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Revert "Add PSP61"
varex83 Jul 19, 2023
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8 changes: 4 additions & 4 deletions PSPs/drafts/psp-61.md
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Expand Up @@ -14,15 +14,15 @@ This proposal aims to define the interface detection standard for WebAssembly sm

## Motivation

Motivation of this proposal is to provide a standard way for smart contracts to detect the interface of the smart contract they are interacting with.
This is useful for smart contracts which interact with other smart contracts, as it allows them to detect the interface of the smart contract they are interacting with and adjust their behavior accordingly,
Motivation of this proposal is to provide a standard way for smart contracts to detect the interface of the smart contract they are interacting with.
This is useful for smart contracts which interact with other smart contracts, as it allows them to detect the interface of the smart contract they are interacting with and adjust their behavior accordingly,
without having any ABI of that contracts.

## Specification

### 1. Interface ID (TRAIT_ID)

Interface ID is a 4-byte identifier of the interface, stored in `u32` big-endian format. It is calculated as the first 4 bytes of the blake2b hash of the string,
Interface ID is a 4-byte identifier of the interface, stored in `u32` big-endian format. It is calculated as the first 4 bytes of the blake2b hash of the string,
that is concatenation of all messages, sorted in lexicographical order. Such as in the example below:
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```rust
Expand All @@ -31,7 +31,7 @@ message_selectors.sort_unstable();
let trait_id = ::ink_ir::Selector::compute(&message_selectors.join("").into_bytes()).into_be_u32();
```

Where `message_selectors` is a vector of all message selectors of the interface in the format `<trait-name>::<message-name>`,
Where `message_selectors` is a vector of all message selectors of the interface in the format `<trait-name>::<message-name>`,
and `::ink_ir::Selector::compute` that computes the BLAKE-2 256-bit based selector from the given input bytes.

```rust
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