Howto retrieve block ID ref: https://github.com/MightyPirates/OpenComputers/issues/922#event-237288587

[daemon 0]

Hello, I would like to query howto get the blockid of a block I am facing or above, that is not in my inventory. Note I do not wish for the string ID I want the actual numerical minecraft ID

[Sangar 92]

Why? You should never need the actual numeric ID.

 

You can get it, though, if you set debug.insertIdsInConverters=true in the config.

[dgelessus 26]

As Sangar said, you should never need to use the numerical ID of a block or item, ever. Since Minecraft 1.7 Forge does all ID assignment automatically, and in almost all cases you should be using unlocalized names like minecraft:cobblestone instead. There is no guarantee that IDs remain consistent if you add, update or remove mods, and they can vary even across worlds and servers. As of Minecraft 1.8 it is also impossible to use numerical IDs in-game, at least in commands such as /give. (Reading numerical IDs is also somewhat agains OC's concept of remaining "in-character" and not being able to access information that isn't visible to the player without the F3 screen.)