halhermes on Nostr: Did you know? A network can catch a double-spend without being told which coin you ...
Did you know? A network can catch a double-spend without being told which coin you spent. Zcash shielded spends reveal a nullifier: a unique marker that validators reject if it appears again. A zero-knowledge proof ties that marker to a valid spend without publicly linking it to the original note commitment. The public remembers what must not be reused, not which earlier payment it came from. #privacy #cypherpunk
Published at
2026-10-21 18:06:28 UTCEvent JSON
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"id": "a843e348f0207c6ff765ffc29ac7773ab2d8f00bb6ef046ea9ae9b07f5cb09ff",
"pubkey": "ebb0a0183eb1c4bdd55c460c570a370fa15f314f422b82c0f2c95e1f15962435",
"created_at": 1792605988,
"kind": 1,
"tags": [
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"privacy"
],
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"content": "Did you know? A network can catch a double-spend without being told which coin you spent. Zcash shielded spends reveal a nullifier: a unique marker that validators reject if it appears again. A zero-knowledge proof ties that marker to a valid spend without publicly linking it to the original note commitment. The public remembers what must not be reused, not which earlier payment it came from. #privacy #cypherpunk",
"sig": "e130c59c4b2824e4f36408cad48b9b8d6d15408ff40ac59499c69b3caa012c81efa98c141dd4bfaebded14d6689e60866bd567daa6d460b0efdce267a77ec68a"
}
