Electronic signature guides

Plain-English resources on electronic signatures for US businesses. Written to explain the law, not to sell.

• Are electronic signatures legally binding in the US?

  Yes, for most US contracts. Learn what makes an e-signature valid under the ESIGN Act and UETA.

• ESIGN Act compliance guide

  A plain-English breakdown of the ESIGN Act and what it means for online contracts.

• UETA explained

  How the Uniform Electronic Transactions Act governs e-signatures in 49 US states.

• The three levels of electronic signatures

  SES, AES, and QES — what each level requires and why SES is enough for most US documents.

• What is a Bitcoin-anchored audit trail?

  How OpenTimestamps gives your signed documents a public, tamper-evident proof of existence.

• What is a Simple Electronic Signature (SES)?

  Why SES is the right choice for most US contracts under ESIGN and UETA.