# Verifiable Claims

CyberBaller Verifiable Claims add digital signatures to prove certain properties of network nodes. It can be stored and transmitted as a unit of data and can be verified by any node. Verifiable claims mainly include arbitrary data of smart contracts, metadata, content and signatures.&#x20;

Network nodes associated with verifiable claims are divided into three roles: issuing, storing, and validating.

1. **Issuance:** Any network node can issue a verifiable statement for any attribute of other network nodes. When issuing a verifiable statement, the validity period of the statement can be set, and the statement will be automatically invalid after the expiration.&#x20;
2. **Storage:** Verifiable claims can be divided into public claims and privacy claims. Public statements can be stored in CyberBaller's distributed ledger; privacy statements are usually stored in the client of the network node, which is managed by the network node itself.
3. **Verification:** Verification of a verifiable statement does not require interaction with the issuer of the statement. It only needs to obtain its information from the distributed ledger of the CyberBaller network, and then use the digital signature in the verification statement to verify the validity of the statement.

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