The receipt
Anyone can check this, including the brand.
No account, no API key, no asking us. Every confirmation is hashed into
a batch and the batch root is written to Base. We cannot revise it afterwards and
neither can anyone else.
Unclaimed. Not affiliated with McDonald's. Opened by customers.
0x4cd19e73313e3a766c...2026-10 UTCcommitted, awaiting receipt—
Each commitment is hashed as
vora.demand.v2|demand|sha256(salt|email)|price|timestamp,
where the salt is 32 random bytes held only on that row and never published. The email
address is never published either. Hashes are combined into a Merkle tree and only the
root is written on chain.
Commitments confirmed before 5 October 2026 carry the earlier format
vora.demand.v1|demand|sha256(email)|price|timestamp.
Those leaves cannot be recomputed under the new format without breaking the proof that
is already on chain, so they keep the old one. A leaf reproduces under exactly one of
the two, which is how you tell which row is which.