Why Nostr? What is Njump?
2025-05-31 22:32:33

Super Testnet on Nostr: A wild XMR challenge approaches! Nostr user Kanzan challenges me to identify the true ...

A wild XMR challenge approaches! Nostr user challenges me to identify the true sender of a monero transaction of his choice. I agree to the challenge and await his tx. I also offer him a counter-challenge when I'm done with his: pay an LN invoice of my choice and tell me the receiver pubkey and its total balance -- i.e. the same data I get by paying a monero address. What will happen? Find out on nostr!
> in what way is it "crackable"?

I answer in this post:



> How about I'll pick a transom and you'll "crack" the true spend?

Sure, I'll do my best! I wrote a free and open source tool for this -- you can paste any monero tx and it will try to identify the true spend: https://github.com/supertestnet/examiner

It doesn't usually find it but sometimes it does. Give me a tx and I'll try it!

Then you do my challenge, OK? The one where you pay a lightning invoice of my choice and tell me (1) the recipient's pubkey (2) the total balance held by that pubkey -- i.e. the same info I can get by paying a monero address

For future reference, here is the invoice I'd like you to pay after I've completed your challenge:

lightning:lnbc10079970p1p5rhqjdpp5wmje0gndr5cmnxwzala7jmuc3jylc33ef4kyhurgx5fdjks3rkwshp5he4v6k88ag5vmms9j7z43lc4u8apl0qd8ftdx2zqzdmtx596x60scqzdyxqrrxssp55gdlkuh6zp2mxx8sqwcz4372y7vhc757pn6rzf0y779e2k8c2yfs9qxpqysgqzl2v27xj5jzm8x45wt6kzkcnxnakmac5xy0c40y79jw6v2s43vqqcv9jralfaz7dl6nxkp0r8qxm7rwppydrfm2spmtu3f24thk5nycq9a9upl
Author Public Key
npub1yxp7j36cfqws7yj0hkfu2mx25308u4zua6ud22zglxp98ayhh96s8c399s