To answer my own question:
ODELL (nprofile…0fd0) interviewed Egge (nprofile…87e5) about npub.cash just a few days ago. I'm listening to the episode now
npub.cash stores the cashu tokens, redeemable by the receiver's wallet when they come online later. And, if I understand correctly, they now use Cashu's P2PK "locking script" (NUT11) such that the tokens can only be spent by the intended receiver. I assume that is whoever has the nsec corresponding to the npub to which the zap was sent
https://fountain.fm/episode/NU2kcoUkYWAxznnm5Qg7
SatsAndSports
npub1zt…wxm56
2025-09-13 14:03:44 UTC
in reply to nevent1q…xdfu
Author Public Key
npub1zthq85gksjsjthv8h6rec2qeqs2mu0emrm9xknkhgw7hfl7csrnq6wxm56Seen on
wss://relay.damus.ioPublished at
2025-09-13 14:03:44 UTCEvent JSON
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"created_at": 1757772224,
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"content": "To answer my own question:\n\nnostr:nprofile1qqsqfjg4mth7uwp307nng3z2em3ep2pxnljczzezg8j7dhf58ha7ejgprpmhxue69uhhqun9d45h2mfwwpexjmtpdshxuet5qyt8wumn8ghj7un9d3shjtnswf5k6ctv9ehx2aqnz0fd0 interviewed nostr:nprofile1qqsdmup6e2z6mcpeue6z6kl08he49hcen5xnrc3tnpvw0mdgtjemh0spp4mhxue69uhkummn9ekx7mqpr4mhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet5cq87e5 about npub.cash just a few days ago. I'm listening to the episode now\n\nnpub.cash stores the cashu tokens, redeemable by the receiver's wallet when they come online later. And, if I understand correctly, they now use Cashu's P2PK \"locking script\" (NUT11) such that the tokens can only be spent by the intended receiver. I assume that is whoever has the nsec corresponding to the npub to which the zap was sent\n\n https://fountain.fm/episode/NU2kcoUkYWAxznnm5Qg7 \n\n",
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