Buy and Sell Inscriptions/Rare Sats

[utxo-detective]

This PR introduces two new commands ord wallet sell and ord wallet buy. Sell will return a signed psbt that you can share with your friends or publish somewhere publicly. Purchase will take the signature from a signed psbt and fund a transaction to move the asset into your wallet

Sell

Usage: ord wallet sell --amount <AMOUNT> <OUTGOING>

Buy

Usage: ord wallet buy --fee-rate <FEE_RATE> <PSBT>

Example

To sell an inscription for 100k sats:

ord wallet sell --amount 100000sat 47be43d0a33229846847215664e68de0fbdeb2cabf470d2f3e930ca097ae7bcbi0

Sell command returns signed psbt:

"70736274ff01005e02000000015a7c8f99c6c23eef83ca2e4d183f47c654ca39359c8f6f35e9f527759fa8a7410100000000fdffffff01a0860100000000002251209374dfb75605cc14a4044c864169ed895f29786f3130e007e73f367b23d94782000000000001012b2224000000000000225120c004d5e7eb0714854491f4f9cf4f0316d68163ac3b37851a564249d15471087d010304830000000108430141e09d184cc707499a5250eadadf646eb14c7a77f215e8e0d8a87ee2c2e8a3478384a5b7ebf60f2df0999f5e4022407f9980bdab288cee74a11369ca396da2ef0c830000"

Buying the the inscription:

ord wallet buy --fee-rate 2.0 70736274ff01005e02000000015a7c8f99c6c23eef83ca2e4d183f47c654ca39359c8f6f35e9f527759fa8a7410100000000fdffffff01a0860100000000002251209374dfb75605cc14a4044c864169ed895f29786f3130e007e73f367b23d94782000000000001012b2224000000000000225120c004d5e7eb0714854491f4f9cf4f0316d68163ac3b37851a564249d15471087d010304830000000108430141e09d184cc707499a5250eadadf646eb14c7a77f215e8e0d8a87ee2c2e8a3478384a5b7ebf60f2df0999f5e4022407f9980bdab288cee74a11369ca396da2ef0c830000

Results in a purchase:

Purchasing 47be43d0a33229846847215664e68de0fbdeb2cabf470d2f3e930ca097ae7bcbi0 for 100000 sats
{
  "setup_txid": null,
  "purchase_txid": "1a6c5641f90a96ff469cb31cb9d86e5d435c711a764fc679c495d931331d5ffa"
}

Tested on signet
https://mempool.space/signet/tx/1a6c5641f90a96ff469cb31cb9d86e5d435c711a764fc679c495d931331d5ffa#vin=4

[utxo-detective]

Heres a psbt for an inscription that available for purchase for 100k signet satoshis:

70736274ff01005e0200000001fa5f1d3331d995c479c64f761a715c435d6ed8b91cb39c46ff960af941566c1a0100000000fdffffff01a0860100000000002251208314a233ef8bcb98a027cc045b9d849a91310ee5ee5122db8c52b92c8cd2c96d000000000001012b22240000000000002251203adaaaa60a717a9ec4effb1282fb188db0a556de16ba0a07ec717023cbe9659201030483000000010843014167cc91babeacbe8e9a7658eb30b8b11a4fdd2222944c76ee66846e946de4fab44d1507179b87bfab0059534668b66a86ea4c4d1902a4993ec1913d663c756f9d830000

[utxo-detective]

@casey @raphjaph i can make any changes you want to see, just let me know. Starting to write tests now

[brianorwhatever]

Suggested change

	#[command(about = "List and ordinal for sale")]
	#[command(about = "List an ordinal for sale")]

[casey]

I think before we can start reviewing this, we need to design and agree on the design of offer PSBTs. I created this #2706 to track this. See that issue for my thoughts.

[victorkirov]

Might be nice if you could optionally specify a particular address for the sales funds to go to.

[victorkirov]

Instead of going with the bump pattern that market places use, it would be great if there was an option for the user to use any 2 random UTXOs for the first 2. That would allow UTXO consolidation as a nice byproduct of a purchase.