https://www.shawntabrizi.com/substrate/proof-of-existence-blockchain-with-substrate/
Developing the Proof of Existence Runtime Logic
- An owner
- A file hash (or file digest)
- The timestamp of the verification
https://www.shawntabrizi.com/substrate/proof-of-existence-blockchain-with-substrate/
Developing the Proof of Existence Runtime Logic
本文标题：proof-of-existence-blockchain-wi
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