Proof of Bill
Prove what you paid. Not what you asked.
usefronse keeps no prompts and no answers, so your bill is the only record. Here is how you check it without trusting us.
01
Signed receipt
Each answer comes with a receipt: model, tokens, price, time and a hash of the answer. Never the words.
02
Daily Merkle root
At the end of each UTC day, every receipt is folded into one fingerprint.
03
Written on chain
That fingerprint is sent to Robinhood Chain. Once it's there, no bill from that day can change.
Every check runs in your browser against Robinhood Chain. usefronse only supplies the proof.
Open a receipt from the chat, or paste one.