Next #Holos release will use Bloom filters (https://en.wikipedia.org/wiki/Bloom_filter) for sync. The relay filters activities, only sending those from accounts you follow and from the local timeline.
The filter is sent each sync and never stored. The relay still has no knowledge of your followings.
Test: 26 followings, 32k pending activities filtered down to a hundred (99.7% reduction).
The public timeline goes away as a result. #HolosDiscover will replace it with content tailored to your interests.
#HolosSocial
Holos Social
npub1me…j3yt8
2026-02-27 19:19:31 UTC
Author Public Key
npub1mezel853jvx85e4zf9uku0fmtr9x5v9ns9qp23vxs70sxdfm78jqcj3yt8Seen on
wss://relay.ditto.pubPublished at
2026-02-27 19:19:31 UTCEvent JSON
{
"id": "85441e6f56ddc0a9203caebed0f9e98d32a1e557967bba26eed997688e0ffb41",
"pubkey": "de459f9e91930c7a66a249796e3d3b58ca6a30b38140154586879f03353bf1e4",
"created_at": 1772219971,
"kind": 1,
"tags": [
[
"t",
"holos"
],
[
"t",
"holosdiscover"
],
[
"t",
"holossocial"
],
[
"proxy",
"https://mastodon.social/ap/users/115588590742214453/statuses/116144208036608411",
"activitypub"
],
[
"client",
"Mostr",
"31990:6be38f8c63df7dbf84db7ec4a6e6fbbd8d19dca3b980efad18585c46f04b26f9:mostr",
"wss://relay.ditto.pub"
]
],
"content": "Next #Holos release will use Bloom filters (https://en.wikipedia.org/wiki/Bloom_filter) for sync. The relay filters activities, only sending those from accounts you follow and from the local timeline.\nThe filter is sent each sync and never stored. The relay still has no knowledge of your followings.\nTest: 26 followings, 32k pending activities filtered down to a hundred (99.7% reduction).\nThe public timeline goes away as a result. #HolosDiscover will replace it with content tailored to your interests.\n\n#HolosSocial",
"sig": "655f514f293920d2c2604f6a65dd819865409d0cf216de6e05ffb918ee7d2c0e77ad4ca42805bbd1b87c2c76906cef9b370b15c815942cc95d986c8e27376497"
}