Message:

<p>[QUOTE=&quot;doug444, post: 1923935, member: 38849&quot;]This is precisely why I floated the idea of a slab reader as a smartphone app.&nbsp; In a new variation, the TPG could associate an embedded second number with each slab, <u>not printed on the slab</u>.&nbsp; Here is the sequence:</p><p><br /></p><p>1.&nbsp; You (the Buyer) and the Seller are in Minneapolis, dealing face-to-face.</p><p><br /></p><p>2.&nbsp; The Buyer uses his app to read the Seller’s slab.</p><p><br /></p><p>3.&nbsp; The Buyer punches in his app’s account number and password (yes, Chinese hackers may have</p><p>stolen the account number and password, but it doesn’t matter).</p><p><br /></p><p>4.&nbsp; The TPG software then displays an automated 1-time-use toll-free number.</p><p><br /></p><p>5.&nbsp; The Buyer calls this number and enters the second slab number plus his GPS.</p><p><br /></p><p>6.&nbsp; The TPG system then confirms the second slab number, against the coin’s description AND the visible number on the slab.&nbsp; But it sends that confirmation ONLY to a phone located at the GPS just entered seconds before (which the Chinese will not know).&nbsp; No confirmation = the slab is a fake.</p><p><br /></p><p>7.&nbsp; The TPG’s 1-time use toll-free number will never work again.&nbsp; To re-submit, even 2 minutes later, you start over.</p><p><br /></p><p>Note this system does not confirm the COIN is genuine.&nbsp; I am not a programmer or security specialist, so if I have left out a critical step, or written ambiguous instructions, <u>post that fact in this thread</u>.&nbsp; The app may be free, but the Buyer may be charged each time he uses the service package provided by the TPG.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in