From 7eff26a07ec227d217dc64e9adb5f10d2af45964 Mon Sep 17 00:00:00 2001
From: Ignacio Tirabasso <ignacio.tirabasso@gmail.com>
Date: Wed, 2 Mar 2022 13:25:42 -0300
Subject: [PATCH 1/2] add Ownable dependency to CrucibleFactory

---
 contracts/crucible/CrucibleFactory.sol | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/contracts/crucible/CrucibleFactory.sol b/contracts/crucible/CrucibleFactory.sol
index 4a5eedb..96fc407 100644
--- a/contracts/crucible/CrucibleFactory.sol
+++ b/contracts/crucible/CrucibleFactory.sol
@@ -2,6 +2,7 @@
 pragma solidity 0.7.6;
 
 import {ERC721} from "@openzeppelin/contracts/token/ERC721/ERC721.sol";
+import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
 
 import {IFactory} from "../factory/IFactory.sol";
 import {IInstanceRegistry} from "../factory/InstanceRegistry.sol";
@@ -10,10 +11,10 @@ import {ProxyFactory} from "../factory/ProxyFactory.sol";
 import {IUniversalVault} from "./Crucible.sol";
 
 /// @title CrucibleFactory
-contract CrucibleFactory is IFactory, IInstanceRegistry, ERC721 {
+contract CrucibleFactory is Ownable, IFactory, IInstanceRegistry, ERC721 {
     address private immutable _template;
 
-    constructor(address template) ERC721("Alchemist Crucible v1", "CRUCIBLE-V1") {
+    constructor(address template) ERC721("Alchemist Crucible v1", "CRUCIBLE-V1") Ownable() {
         require(template != address(0), "CrucibleFactory: invalid template");
         _template = template;
     }

From c07a3220b0c9ee296db92466bc3e9345d45f3d20 Mon Sep 17 00:00:00 2001
From: Ignacio Tirabasso <ignacio.tirabasso@gmail.com>
Date: Thu, 3 Mar 2022 08:23:06 -0300
Subject: [PATCH 2/2] add custom token uri for crucibles

---
 contracts/crucible/CrucibleFactory.sol | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/contracts/crucible/CrucibleFactory.sol b/contracts/crucible/CrucibleFactory.sol
index 96fc407..7c02635 100644
--- a/contracts/crucible/CrucibleFactory.sol
+++ b/contracts/crucible/CrucibleFactory.sol
@@ -3,6 +3,7 @@ pragma solidity 0.7.6;
 
 import {ERC721} from "@openzeppelin/contracts/token/ERC721/ERC721.sol";
 import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
+import {Strings} from "@openzeppelin/contracts/utils/Strings.sol";
 
 import {IFactory} from "../factory/IFactory.sol";
 import {IInstanceRegistry} from "../factory/InstanceRegistry.sol";
@@ -13,10 +14,12 @@ import {IUniversalVault} from "./Crucible.sol";
 /// @title CrucibleFactory
 contract CrucibleFactory is Ownable, IFactory, IInstanceRegistry, ERC721 {
     address private immutable _template;
+    using Strings for uint256;
 
     constructor(address template) ERC721("Alchemist Crucible v1", "CRUCIBLE-V1") Ownable() {
         require(template != address(0), "CrucibleFactory: invalid template");
         _template = template;
+        _setBaseURI('https://crucible.alchemist.wtf/nft/');
     }
 
     /* registry functions */
@@ -83,4 +86,26 @@ contract CrucibleFactory is Ownable, IFactory, IInstanceRegistry, ERC721 {
     function getTemplate() external view returns (address template) {
         return _template;
     }
+
+    /**
+     * @dev See {IERC721Metadata-tokenURI}.
+     */
+    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
+        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
+
+        string memory base = baseURI();
+
+        uint256 id;
+        assembly {
+            id := chainid()
+        }
+
+        // concatenate the tokenID and chain id to the baseURI
+        return string(abi.encodePacked(
+            base,
+            tokenId.toString(),
+            '?network=',
+            chainId.toString()
+        ));
+    }
 }