# When To Sell Your Blocks

**URL:** https://collective.flashbots.net/t/when-to-sell-your-blocks/2814
**Category:** Research
**Tags:** pbs, auction
**Created:** [December 14, 2023, 3:40pm UTC](https://collective.flashbots.net/t/when-to-sell-your-blocks/2814 "2023-12-14T15:40:00Z")
**Posts on this page:** 1
**Showing post:** 12

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### Author: ![Quintus](https://collective.flashbots.net/letter_avatar_proxy/v4/letter/q/49beb7/32.png) [@Quintus](https://collective.flashbots.net/u/Quintus)
#### Post date: [June 13, 2024, 6:34pm UTC](https://collective.flashbots.net/t/when-to-sell-your-blocks/2814/12 "2024-06-13T18:34:24Z")

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I’m not sure I follow everything so I’ll respond to the bits that made sense to me.

Offchain resale of tickets could work by having the proposing key generated in a TEE. That way the key can be sent from one TEE to another. With the right [proposing\_check](https://collective.flashbots.net/t/where-the-execution-ticket-discussion-actually-should-start/3425), you can also just have the proposing key sign the next key and have a TEE guarantee that it won’t also produce a block after that.

Yes, execution tickets more explicitly introduces a (“active”) monopolist, which will surely change market structure.

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