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

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RE: American Express Thinks Blockchains Could Help Prove Payments

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karnalovo (38)in #amex • 6 years ago

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

6 years ago in #amex by karnalovo (38)

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onthehook8 (72) 6 years ago

Well said

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