Not exactly.
Cashu or Fedimint use ecash as a money warehouse receipt redeemable at par for sats.
In Wabisabi coinjoin the ecash is used as anonymous access rights to the output side of the coinjoin transaction coordination.
The token is not "as good as" sats and it cannot be "redeemed" for sats. Instead it can be redeemed for the right to do an api call in the output registration phase.
A coinjoin coordination can fail frequently and for many reasons. If only one input fails to sign, the transaction is invalid, and even if all sign, it can still get double spent before confirmation.
The merchant doesn't consider himself paid when he receives the wabisabi credential, but only when the final transaction with his output is in the blockchain.
So far nobody has implemented this, but both BTCPay and Wasabi will have this functionality soonish in two weeks.
Max Hillebrand
npub1kl…lx3vt
2023-02-25 16:56:57
in reply to nevent1q…q7j4
Author Public Key
npub1klkk3vrzme455yh9rl2jshq7rc8dpegj3ndf82c3ks2sk40dxt7qulx3vtPublished at
2023-02-25 16:56:57Event JSON
{
"id": "137773e9c1cef6bf87e351d9dcc39b49e3f1fd9127cd22bd48dd375caecccf4d",
"pubkey": "b7ed68b062de6b4a12e51fd5285c1e1e0ed0e5128cda93ab11b4150b55ed32fc",
"created_at": 1677344217,
"kind": 1,
"tags": [
[
"e",
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],
[
"e",
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],
[
"p",
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[
"p",
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]
],
"content": "Not exactly.\n\nCashu or Fedimint use ecash as a money warehouse receipt redeemable at par for sats.\n\nIn Wabisabi coinjoin the ecash is used as anonymous access rights to the output side of the coinjoin transaction coordination.\n\nThe token is not \"as good as\" sats and it cannot be \"redeemed\" for sats. Instead it can be redeemed for the right to do an api call in the output registration phase. \n\nA coinjoin coordination can fail frequently and for many reasons. If only one input fails to sign, the transaction is invalid, and even if all sign, it can still get double spent before confirmation.\n\nThe merchant doesn't consider himself paid when he receives the wabisabi credential, but only when the final transaction with his output is in the blockchain.\n\nSo far nobody has implemented this, but both BTCPay and Wasabi will have this functionality soonish in two weeks. ",
"sig": "74cf4833f10f6dbbab5c47cf8dd2a02d3191b549bcdaf6afb89d005a9374aa7380509799cd2cd7f69d33a83e8c998b06d4415d446563e4a5c4658e6d217925c0"
}