calle's avatar
calle calle@cashu.me 1 year ago
- Proof of work was invented to prevent spam. - Satoshi used PoW to rate-limit block production. - Blocks create scarce Satoshis. - Cashu puts Satoshis into bearer ecash tokens. - KeyChat (privacy messenger) uses Cashu tokens as stamps to prevent spam. Full circle @Adam Back.

Replies (23)

ralphstriewski's avatar
ralphstriewski Ralph@primal.net 1 year ago
The future is here! Thanks!
calle's avatar calle
- Proof of work was invented to prevent spam. - Satoshi used PoW to rate-limit block production. - Blocks create scarce Satoshis. - Cashu puts Satoshis into bearer ecash tokens. - KeyChat (privacy messenger) uses Cashu tokens as stamps to prevent spam. Full circle @Adam Back.
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Tim Bouma's avatar
Tim Bouma trbouma@safebox.dev 1 year ago
This is the way.
calle's avatar calle
- Proof of work was invented to prevent spam. - Satoshi used PoW to rate-limit block production. - Blocks create scarce Satoshis. - Cashu puts Satoshis into bearer ecash tokens. - KeyChat (privacy messenger) uses Cashu tokens as stamps to prevent spam. Full circle @Adam Back.
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Nice and Kind Vic's avatar
Nice and Kind Vic vic@cornychat.com 1 year ago
Cashu does not put satoshis INTO bearer ecash tokens. It issues an independent token which on its own is incompatible with every other cashu mint doing the same. A mint itself takes possession of the sats, and offers a service to - give you tokens for sats - swap tokens for fresh tokens - accept requests to pay bolt11 lightning invoices denominated in satoshis and provides an offer exchange rate - may fullfill payment of aforementioned invoices through bridging to lightning network. When you send satoshis to a cashu mint, you are effectively selling your sats for tokens under the hope that you can later get some of that value back.
calle's avatar calle
- Proof of work was invented to prevent spam. - Satoshi used PoW to rate-limit block production. - Blocks create scarce Satoshis. - Cashu puts Satoshis into bearer ecash tokens. - KeyChat (privacy messenger) uses Cashu tokens as stamps to prevent spam. Full circle @Adam Back.
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2 replies ↓
Abstract Equilibrium's avatar
Abstract Equilibrium abstractequilibrium@mjex.me 1 year ago
We're talking snailmail postage stamp utility tokens here. USPS for example prints some unknown quantity of different kinds of stamps each year & sells them for a fixed USD price. Some kinds hold value more than others. We don't know their supply issuance. It's only meant to require a sizeable amount to purchase if you're a spammer. It's not really meant to be money, but nothing stops a person from valuing it as such I guess
1 replies ↓
calle's avatar
calle calle@cashu.me 1 year ago
How we can get rid of reply guys
calle's avatar calle
- Proof of work was invented to prevent spam. - Satoshi used PoW to rate-limit block production. - Blocks create scarce Satoshis. - Cashu puts Satoshis into bearer ecash tokens. - KeyChat (privacy messenger) uses Cashu tokens as stamps to prevent spam. Full circle @Adam Back.
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8 replies ↓
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npub1pktm...pxa6 1 year ago
calle's avatar calle
- Proof of work was invented to prevent spam. - Satoshi used PoW to rate-limit block production. - Blocks create scarce Satoshis. - Cashu puts Satoshis into bearer ecash tokens. - KeyChat (privacy messenger) uses Cashu tokens as stamps to prevent spam. Full circle @Adam Back.
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Christine's avatar
Christine 8 months ago
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Sunie 8 months ago
Cheers, no spam please !
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