Reserve ss58 prefix 48 for Neatcoin (#8165)

* Reserved ss58 prefixes for Neatcoin

* Switch to use 63

* Switch to use 48

substrate/primitives/core/src/crypto.rs

@@ -578,11 +578,13 @@ ss58_address_format!(
 		(46, "reserved46", "Reserved for future use (46).")
 	Reserved47 =>
 		(47, "reserved47", "Reserved for future use (47).")
+	NeatcoinAccount =>
+		(48, "neatcoin", "Neatcoin mainnet, standard account (*25519).")
 	AventusAccount =>
 		(65, "aventus", "Aventus Chain mainnet, standard account (*25519).")
 	CrustAccount =>
 		(66, "crust", "Crust Network, standard account (*25519).")
-	// Note: 48 and above are reserved.
+	// Note: 16384 and above are reserved.
 );
 
 /// Set the default "version" (actually, this is a bit of a misnomer and the version byte is

substrate/ss58-registry.json

@@ -442,6 +442,15 @@
 			"standardAccount": null,
 			"website": null
 		},
+		{
+			"prefix": 48,
+			"network": "neatcoin",
+			"displayName": "Neatcoin Mainnet",
+			"symbols": ["NEAT"],
+			"decimals": [12],
+			"standardAccount": "*25519",
+			"website": "https://neatcoin.org"
+		},
 		{
 			"prefix": 65,
 			"network": "aventus",