jm C¦æè"£¾{èzyÿçKî¸8IÒ|7-r[¬ú*L-> measuring sentience, but we infer the likelihood from comparing the biology of humans and animals. But yeah, we have no clue about how consciousness works.
https://whatsonchain.com/tx/6a5425464586dcdbc49080b44f7c70a2cf3033ed99491e90411d972a383988c8