NANO Block Hasher/Signer

Block hasher/signer

Preamble:
Account or pubkey:
Previous block hash on this account:
Representative:
balance (32 digit zero-padded hex or arbitrary length decimal RAW):
Link (hash or account or public key):
Reset all fields
Once you filled all fields above, the hash of this block will show up here:
(you can also paste a hash and leave the above fields blank if you already have the hash and only need a signature)
Example 1 State block (subtype receive) Example 2 HEX input of the same block Example from NANO's rpc guide, with signature
Private key (not the seed) to sign the above block hash:
Example private key (First account on seed 000…000)
Corresponding signature:

Nanoo.tools 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