at://did:plc:44ybard66vv44zksje25o7dz/app.bsky.feed.post/3mcsolg424s2d

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{
  "$type": "app.bsky.feed.post",
  "createdAt": "2026-01-19T22:23:09.095Z",
  "embed": {
    "$type": "app.bsky.embed.external",
    "external": {
      "description": "The technical implementation of public blocks and some possibilities for more privacy preserving block implementations — an area of active research and experimentation.",
      "thumb": {
        "$type": "blob",
        "ref": {
          "$link": "bafkreieh4qn3fgsk4h7xdd6c2frnwnsc6646mjsdfzy2simconuq32afhq"
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        "mimeType": "image/jpeg",
        "size": 110023
      },
      "title": "Why are blocks on Bluesky public? | Bluesky",
      "uri": "https://docs.bsky.app/blog/block-implementation"
    }
  },
  "langs": [
    "en"
  ],
  "reply": {
    "parent": {
      "cid": "bafyreia6azb3peltm7bwm7vfugl7enq7peuxe3ewinfqafkfz2r6zk7xqe",
      "uri": "at://did:plc:44ybard66vv44zksje25o7dz/app.bsky.feed.post/3mcsoh2mi5c2d"
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    "root": {
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  "text": "I'd be remiss not to link back to the (long) original post on this.\n\nwe think there might be ways to improve this in the future (preserving permissionless and correct), and there are ideas which \"solve\" aspects of the problem, but they all have downsides so far"
}