@karnalovo: Proof-of-payment

RE: RE: American Express Thinks Blockchains Could Help Prove Payments

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RE: American Express Thinks Blockchains Could Help Prove Payments

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2018-07-17 08:59

Proof-of-payment data is good example of bank secret. ;) .
OR
BITCOIN - proof-of-payment data AND ZCASH - bank secret.

2018-07-17 08:59

$ 0.037

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@karnalovo: Proof-of-payment