[1propionyl]

A lot of overwrought digital solutions here and not the obvious one:

Stop selling online.

Sell the tickets at a small number of locations near and including the venue, with cashiers empowered to deny suspicious transactions.

Could someone put together a small army of smurfs to buy up all the tickets in major cities? Sure. Could someone have someone on the inside sell them a block of tickets against policy? Sure. We can handle these cases on a locale by locale basis with a convenience trade off that seems appropriate to the place.

Don't let perfect be the enemy of the good, and even worse, don't let overwrought privacy-invading and non-accessible digital solutions (that create a playing field tilted towards bad actors equipped with AI tools) be the enemy of a dead simple analog real-world one that leverages our best reputation management system: ourselves.

[debugnik]

> Sell the tickets at a small number of locations near and including the venue

People frequently travel to major cities for concerts, do you expect them to travel twice to purchase the tickets? Either you join a much wider network of sellers than that, or this would only satisfy people already living not too far from the venue.

[carlosjobim]

Scalping is a solved problem and only happens when artists and venues encourage it.

Your solution doesn't do anything against scalpers, on the contrary it encourages scalping even more.

[azan_]

People propose overwrought digital solutions because not selling online is worse in almost every aspect.