La fonction CLTV : paiement à retardement par multi-signature.

[Meuh6879]

 https://bitcoinmagazine.com/articles/checklocktimeverify-or-how-a-time-lock-patch-will-boost-bitcoin-s-potential-1446658530

C'est un peu complexe.

That's where CLTV comes in.

Alice can add CLTV to the initial bitcoin transaction, using it to send the whole bitcoin back to her own address. This transaction is validated – for example – one day later, but only if Alice and Bob didn't sign the multi-signature transaction before that time. Now, if Bob doesn't sign the transaction at all for whatever reason, Alice can sign it by herself and is guaranteed to get her money back.

[btchip]

C'est beaucoup plus clair avec l'exemple "Escrow" de la spec https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki#escrow

(enfin à mon sens)