Written by Tobechi Chukwuleta
In simple terms digital signatures are techniques that are used to validate authenticity and integrity of a message. It's the digital equivalent of a handwritten signature or a stamped seal, but digital signature offers much more security than others.
Digital signatures can provide evidence of origin, identity and status of electronic documents, transactions or digital messages. Signers can also use them to acknowledge informed consent. In many countries including the United States, digital signatures are considered legally binding in the same way as traditional handwritten signatures. In the case of Bitcoin, digital signatures are applied to transactions themselves. The signature implies a commitment by the signer to specific transaction data.
Find out why it's important for transactions to have signatures as Tobechi explains more here; https://hippreacher.hashnode.dev/signature-hash-and-signature-hash-types