ig_tech

When you “sign” in blockchain, you’re not signing plain text—you’re signing a hashed version of data.Here’s a simplified technical flow:Step 1: Create transactionIncludes:Sender addressReceiver addressAmountFee Nodes in the blockchain check:Does the signature match the public key?Has the transaction been altered?Is the sender authorized?If any check fails ❌ → transaction is rejected
Private key = your secret pen
Signature = your handwritten approval
Blockchain = public record that verifies your signatureIf you want next-level detail, I can explain:
How ECDSA math actually works
How hackers exploit signatures
Step-by-step signing demo in MetaMask
Always read what you’re signing
Use hardware wallets for safety
Avoid unknown dApps
Revoke unnecessary permissions
On platforms like Ethereum:
You sign interactions with smart contracts
Example:
Approving token spending
Minting NFTs
Swapping tokens
Each action = a signed transaction