[_prometheus]

Truncations happen in many sizes. The combinations here are not helpful: N functions * M commonly chosen sizes. Simple assumptions: 20 functions * 10 sizes = 200 codes. already not good.

You can print a human-readable version of multihash as:

sha2-256-20B-<hex>

Using the same values of the table. But again, it is preferable that it travels in-band with the values, as otherwise it will likely get chopped up and placed into out of band context.