CAT Protocol Smart Contracts

Installation

``bash
yarn install
`

Build

`sh
yarn build
`

Testing Locally

`sh
yarn test
`

Sample Transactions

Sample token contract address is bc1plhz9wf0desgz8t32xm67vay9hgdmrnwzjzujgg0k9883cfxxgkzs20qfd5

- A transaction with 2 token UTXO inputs and 1 token UTXO output, with a virtual size (vsize) of 3.9k. The transaction ID (txid) is 2537706ed1000d5dd3a28d79a95ade8f674fd3e25c020cbcf97fd1b1e86ec8ef.

- A transaction with 1 token UTXO input and 2 token UTXO outputs, with a virtual size (vsize) of 2.6k. The transaction ID (txid) is 94e3254c1237ba7cd42eaeeae713c646ee5dd1cd6c4dd6ef07241d5336cd2aa7.

CAT Token Transaction Limits

For a CAT Token protocol transaction, the maximum number of inputs is 6, and the maximum number of outputs is also 6.

Since we need to calculate the txid of the previous transaction, we must ensure the previous transaction’s data is within 520 bytes.

This is because the maximum byte limit for an element on the Bitcoin Virtual Machine (BVM) stack is 520. The corresponding constant name is MAX_SCRIPT_ELEMENT_SIZE`.

CAT Protocol