When searching for a sentence in zencode_w3c.lua file, it is becoming hard to spot it among all the difference scenarios and sentences that are in there: jwk, jws, jwt, did and vc.

Maybe it can be worth it to move all the shred function in a new file crypto_w3c.lua, move all the various sentences of different scenarios in a dedicated file (zencode_jwk.lua, zencode_jws.lua, ...) and keep zencode_w3c.lua that just requires this files for retro compatibility and usability.