世紀末のActivityPub：

```json
{
"type": "Block",
"actor": "https://bob.example/me",
"object": "https://alice.example/@Alice",
"to": [
"https://alice.example/@Alice",
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://bob.example/me/followers",
"https://alice.example/@Alice/followers"
]
}
```

Bluesky風バージョン：

```json
{
"type": "Block",
"actor": "https://bob.example/me",
"object": "https://alice.example/@Alice",
"to": "https://www.w3.org/ns/activitystreams#Public"
}
```

？