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Joe / 0xOsprey.eth
@osprey
Did you @witness the launch this morning, anon?
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Rob Zombie
@heegs
Ooh that was nice. No idea what I co-signed but it felt good
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Joe / 0xOsprey.eth
@osprey
0xec00...ca9d = the hash of your signature over the IPFS CID of the image tl;dr you can prove to anyone, or any smart contract, that you witnessed this image at a specific block number, without having to pay an onchain transaction fee
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