feat: initial byte types

types/cid.go

@@ -0,0 +1,14 @@
+package types
+
+type CIDType int
+
+const (
+	CIDTypeRaw              CIDType = 0x26
+	CIDTypeMetadataMedia    CIDType = 0xc5
+	CIDTypeMetadataWebapp   CIDType = 0x59
+	CIDTypeResolver         CIDType = 0x25
+	CIDTypeUserIdentity     CIDType = 0x77
+	CIDTypeBridge           CIDType = 0x3a
+	CIDTypeEncryptedStatic  CIDType = 0xae
+	CIDTypeEncryptedDynamic CIDType = 0xad
+)

types/hash.go

@@ -0,0 +1,8 @@
+package types
+
+type HashType int
+
+const (
+	HashTypeBlake3  HashType = 0x1f
+	HashTypeEd25519 HashType = 0xed
+)

types/registry.go

@@ -0,0 +1,8 @@
+package types
+
+type RegistryType int
+
+const (
+	RegistryTypeCID          RegistryType = 0x5a
+	RegistryTypeEncryptedCID RegistryType = 0x5e
+)