Timestamp Authority (TSA) Definition and Examples

Understanding Timestamp Authority (TSA) for e-Signing

A Timestamp Authority (TSA) provides irrefutable proof of the exact time a document was signed electronically. This is crucial in various legal and compliance contexts where the timing of a signature can be as critical as the signature itself.

What is a Timestamp Authority (TSA)?

A Timestamp Authority is a trusted third party that vouches for the time at which a document was signed. They use cryptographic techniques to bind the timestamp to the document, ensuring it cannot be altered without detection. Essentially, a TSA's role is to add a layer of security that verifies the exact moment a digital document was signed, creating an immutable record.

Why is Timestamp Authority Important?

1. Legal Compliance: Many regulatory frameworks require proof of when documents were signed. TSAs help meet these requirements by providing a verifiable timestamp.
2. Non-repudiation: A timestamp from a TSA can prevent disputes over when a document was signed, protecting against the risk of a signatory denying their action.
3. Integrity Verification: TSAs ensure that no modifications are made to the signed document after the timestamp is applied. Any changes invalidate the timestamp, maintaining document integrity.

Examples of Timestamp Authority Use Cases

1. Contract Signing: When multiple parties sign a contract, a TSA can provide a trusted record of when each participant signed, which is crucial in enforceable agreements.
2. Financial Transactions: Timestamping authenticates the precise moment financial deals or transactions occur, supporting audit trails and compliance.
3. Patent Filing: In intellectual property, timestamps are vital for proving the exact time of filing to establish precedence.

GoodSign and Timestamp Authority

With GoodSign, each envelope you send for e-signature not only boasts comprehensive features but also benefits from affordable and transparent pricing at just $1.50 per send. GoodSign integrates seamlessly with TSA services, ensuring that your documents are not just signed but also time-stamped securely and verifiably, without hidden costs or complicated plans.

In summary, Timestamp Authorities (TSAs) are key to ensuring the security, integrity, and legal standing of e-signed documents. With GoodSign, you get the best of both worlds: robust signature features and the reliability of timestamped authentication, all at a cost-effective price.