Transparency
How to check Akapulu synthetic audio
Clips we generate carry two machine-readable marks: an AudioSeal watermark in the waveform, and a C2PA Content Credentials signature on the file. This page is the public trust anchor for that signature.
C2PA root certificate
Download the PEM and pass it to your C2PA reader as a
user trust anchor. Default tools (Photoshop, stock
c2patool) do not ship this CA, so they will say
signingCredential.untrusted until you add it. The signature
still proves the bytes were not edited after we signed them.
Subject: CN=Akapulu Labs C2PA Root, O=Akapulu, C=US.
Algorithm: ES256. Valid through 2036.
AudioSeal payload
We stamp 16 bits with AudioSeal 0.2. The payload is
0x414C (ASCII AL, Akapulu Labs). That mark
lives in the sound, so it can survive copies that strip the C2PA chunk.