Apparently, Citrea decided not to put their spam in inscriptions because inscriptions have to be "unwrapped" in a second transaction. When the data is less than ~150 bytes, it's cheaper to put it in unspendable outputs, despite getting no witness discount.
I think they could get the witness discount and still avoid a second transaction by putting the spam in the control block. It lets you add up to ~520 bytes of spam by encoding your data as merkle leaves, each of which can be 32 bytes. No extra tx required, AND you get the witness discount.
Super Testnet
npub1yx…c399s
2025-05-02 20:59:49
Author Public Key
npub1yxp7j36cfqws7yj0hkfu2mx25308u4zua6ud22zglxp98ayhh96s8c399sPublished at
2025-05-02 20:59:49Event JSON
{
"id": "74cadcec141b968ede0ca52e400536a5b478ae4bf918eef95d5a61df344e8b41",
"pubkey": "2183e94758481d0f124fbd93c56ccaa45e7e545ceeb8d52848f98253f497b975",
"created_at": 1746219589,
"kind": 1,
"tags": [
[
"client",
"Yakihonne",
"31990:20986fb83e775d96d188ca5c9df10ce6d613e0eb7e5768a0f0b12b37cdac21b3:1700732875747"
]
],
"content": "Apparently, Citrea decided not to put their spam in inscriptions because inscriptions have to be \"unwrapped\" in a second transaction. When the data is less than ~150 bytes, it's cheaper to put it in unspendable outputs, despite getting no witness discount.\n\nI think they could get the witness discount and still avoid a second transaction by putting the spam in the control block. It lets you add up to ~520 bytes of spam by encoding your data as merkle leaves, each of which can be 32 bytes. No extra tx required, AND you get the witness discount.",
"sig": "32fffb028b78f0f3f9483dece1ca25d8b42af8a3e1d0b7fce939745dd37cc002446224e525c4b4c9db2328a1cf871b16a3a9441f88e1c2e89867bb97fc51ed62"
}