BC1P, NOT BC1Q
Only a taproot address can hold an inscription. A bc1q address is perfectly good Bitcoin and will accept the transaction — the inscription inside it is simply gone. Most wallets offer both; look for the one starting bc1p.
CHECK AN ORDINAL ADDRESS
Paste the address you would give a Bitcoin mint. This confirms it is taproot and that there is no typo in it — the two ways an inscription gets lost for good.
THE CHECKSUM
Bitcoin addresses carry their own error detection, which is why a single mistyped character is caught here rather than on chain. If this page says the checksum fails, re-copy the address rather than hunting for the wrong letter.
WHAT THIS DOES NOT DO
It does not list what an address holds. Every free ordinals indexer now requires a key, and reporting “no inscriptions” when we simply could not look would be worse than saying nothing.
Holders can file their delivery address with City Bot instead — it runs the same check and ties the address to the wallet you have already proven, so we know whose it is.