Ecash mint without an every-growing database of spent tokens but a comparatively tiny accumulator. Sounds cool but tmk, a perfect accumulator hasn't been found yet.
If the accumulator has a false-positive rate like a bloom filter, it would falsely flag unspent ecash as "already spent" effectively randomly buring some few of the user's tokens (you can control how little).
It can be improved if the mint shares this accumulator publicly. When wallets want to mint tokens, they could "mine" for secrets that don't trigger a false positive hit with the accumulator. It's still not perfect because the accumulator is likely to change between the mint event and the spend (melt) event - which can again lead to new false positives.
calle 👁️⚡👁️
npub12r…485vg
2023-10-17 23:06:44
Author Public Key
npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vgPublished at
2023-10-17 23:06:44Event JSON
{
"id": "9ced5db00b47a8c7622851d834f1c4568ba4ab3c5346ca9867317dc3d6c436eb",
"pubkey": "50d94fc2d8580c682b071a542f8b1e31a200b0508bab95a33bef0855df281d63",
"created_at": 1697584004,
"kind": 1,
"tags": [],
"content": "Ecash mint without an every-growing database of spent tokens but a comparatively tiny accumulator. Sounds cool but tmk, a perfect accumulator hasn't been found yet.\n\nIf the accumulator has a false-positive rate like a bloom filter, it would falsely flag unspent ecash as \"already spent\" effectively randomly buring some few of the user's tokens (you can control how little).\n\nIt can be improved if the mint shares this accumulator publicly. When wallets want to mint tokens, they could \"mine\" for secrets that don't trigger a false positive hit with the accumulator. It's still not perfect because the accumulator is likely to change between the mint event and the spend (melt) event - which can again lead to new false positives.",
"sig": "5b2ad54a99f1e58a1fcc81282c2615a9f5c32ee83ee5b586a2ea60c1ef79cd5d3529be179e8780677c842a519bbf1882d3ee4b1ead02dc8ec66aa010485ea9da"
}