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tomsanta222 (OP)
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June 07, 2018, 07:48:45 PM
 #1
IS there somewhere a physical oracle service for verifying the authenticity of a signature in a transaction? like a physical key...
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June 08, 2018, 12:17:15 AM
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What do you mean by "physical key", what are you trying to achieve? If you are looking for a hardware device to verify signed messages look into hardware wallets such as Trezor or Ledger:

https://trezor.io/

https://www.ledgerwallet.com/products/ledger-nano-s
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