user31776: Is there any real USA court cases with Bitcoin's Blockchain used as an proof-of-existence/timestamp service (without BTC transfer)? 
Can Bitcoin's Blockchain be used as a 'signing' utility same as DocuSign service (for example) that conforms to ESIGN?
Thank you.

user35727: I am not aware of any cases, but based on the long delay in relevant cases concerning the fax machine and email (proof of delivery, timestamps, etc) I would not expect such a blockchain specific case law decision anytime soon.
Technology advances far faster than the law.

31776: <p>Is there any real USA court cases with Bitcoin's Blockchain used as an proof-of-existence/timestamp service (without BTC transfer)? </p>

<p>Can Bitcoin's Blockchain be used as a 'signing' utility same as DocuSign service (for example) that conforms to ESIGN?</p>

<p>Thank you.</p>
 35727: <p>I am not aware of any cases, but based on the long delay in relevant cases concerning the fax machine and email (proof of delivery, timestamps, etc) I would not expect such a blockchain specific case law decision anytime soon.</p>

<p>Technology advances far faster than the law.</p>
