Block hasher/signer

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Example 1 State block (subtype receive) Example 2 HEX input of the same block Example from NANO's rpc guide, with signature

Example private key (First account on seed 000…000) will never capture or reuse your private keys intentionally, but there are many potential data leaks when using this tool online, and you shouldn't be trusting third parties in general. If you want to handle sensitive data, consider downloading this tool as a single-file package for offline use