I've noticed some non-KYC AI services that charge per question rather than using a subscription model. Some of these use Lightning Network for payments, providing an API key that gets debited with each use. Going even further, I've seen services that use Cashu, embedding the bearer token in the header to pay "truly" per query. I'm curious about how this works. Cashu tokens aren't fixed keys and become unusable after a single use. Does this mean the header token needs to be replaced with each query? Before a response is generated, it's impossible to know the exact cost of that query. What token is put in the header? And since the cost is unlikely to match the token's exact value, does this mean a token with a larger denomination is used, and the change is refunded somehow? Is the refund attached to the response? @routstr #asknostr

South Korean government distributed consumer coupons (aka "free money") to stimulate domestic demand, and of course, merchants raised their prices accordingly. Yet, people are complaining about the merchants' greed, haha. They should have saved in Bitcoin from the start!

Yesterday, I permanently lost the private key to my original Nostr pubkey. I was using #amethyst and noticed something was off, and it turned out #amber had lost the private key. This happened exactly one week after I, in an effort to enhance security, had consolidated all my scattered private keys to sign exclusively through #amber using NIP-46. While managing the private key in one place did reduce the attack surface, which was good, losing it meant I had no recourse. I knew I should have made a backup, but I deeply regret thinking, "It's a hassle, I'll do it later." In hindsight, I think it would have been fine to have the private key on a couple of devices, like my main phone and computer, or to have made a really secure backup. I haven't been active on Nostr for a particularly long time, nor did I have many personal contacts there, but it still feels like I've lost a part of my identity. It's not just a feeling; it's a reality. If Nostr becomes a mainstream solution for identity verification in the future, this issue will become even more critical, especially for those who have invested significant effort in building their reputation. If you've been managing your private key without giving it much thought, I urge everyone to check on it today. #bunker #nsec #privkey

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