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Double-spending — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Double-spending
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-05T23:20:15.714Z
SHA-256 of the archived text: 1a8fa92ca5fa2c3ccdb15a028a5b5816c57263a941f693cb4d1660cd3c4b8b2f
Stable URL of this page: https://metraipolis.com/documento/dc_bf4eec87bfbf

How to cite

Double-spending — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Double-spending (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_bf4eec87bfbf (Metraipolis archive dc_bf4eec87bfbf, sha256 1a8fa92ca5fa2c3ccdb15a028a5b5816c57263a941f693cb4d1660cd3c4b8b2f)

BibTeX

@misc{dcbf4eec87bfbf,
  title = {Double-spending — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Double-spending},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_bf4eec87bfbf; sha256 1a8fa92ca5fa2c3ccdb15a028a5b5816c57263a941f693cb4d1660cd3c4b8b2f},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Double-spending. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Double-spending is the unauthorized spending of the same money (either digital or conventional) more than once. As with counterfeit money, double-spending leads to supply inflation by creating a new amount of copied currency that did not previously exist. It can also devalue the currency and diminish user trust in the currency. There are many fundamental cryptographic techniques to prevent double-spending while preserving anonymity in a transaction, including the introduction of a centralized authority (proof-of-authority) for blind signatures and, particularly in offline systems, secret splitting. Other methods to mitigate the double-spend problem include decentralized consensus protocols such as proof-of-work and proof-of-stake.

Tema degli esploratori: governance digitale e beni comuni (deposito sistematico; ricerca «decentralized autonomous organization»).
Fonte: Wikipedia in inglese, voce «Double-spending» — https://en.wikipedia.org/wiki/Double-spending
Wikidata Q5299614 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q5299614
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Double-spending?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1378620288, consultata il 2026-10-05T23:05:40.522Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 3f7bc8ae8c990a792d74d76ea897752b9a13b5e912ccc5a58d319ccfb27700ab