Blossom server

24242.io · Storage · 2 records · JSON

Blossom server fleet (24242.io, blossom.oslim.dev / Lotus, blossom.nostr.build) Storage★ qualifiesanonymousno cardRper-object-cap
24242.io — public Blossom blob server (Nostr) Storagecaveatanonymousno cardRper-object-cap

Blossom server fleet (24242.io, blossom.oslim.dev / Lotus, blossom.nostr.build) Storage

★ qualifiesanonymousno cardRper-object-cap

24242.io/ · p2p-blob-storage · storage/blossom-server-fleet · JSON · compare

Free tier	24242.io 100 MiB/file, deleted if not accessed for 60 days. blossom.oslim.dev (Lotus): 100 MB/file and 8 GB per pubkey, retention 'permanent', cost 'free'. blossom.nostr.build: 20 MiB/file free tier, 'no limit on how many files, and no expiry'. unit mixed; metered on unstated
Price	none stated
Per-object cap	100 MiB/file (104857600 bytes)
Retention	24242.io 100 MiB/file, deleted if not accessed for 60 days (60 days)
Egress	unmetered / CDN-fronted. nostr.build advertises 'Global CDN delivery' on free uploads.
Identity	anonymous anonymous
Limits	per-object-cap 100 MiB/file source per-object-cap 100 MB/file source retention-clamped deleted if not accessed for 60 days source per-object-cap 100 MiB on most servers (20 MiB on nostr.build free). This is chunk-sized, not object-sized. 24242.io caps /list at the first 250 hits, so enumeration needs date ranges.
Binding	per-object-cap the per-object cap sets the shard size and therefore the object count; it bounds the total more tightly than any headline quota
Interface	cli Blossom BUD-01/02/04/05/06/10. `GET /<sha256>`, `PUT /upload`, `PUT /mirror`, `GET /list/`.
Tooling	curl; hzrd149/blossom CLI; any Blossom client. BUD-04 `/mirror` lets one server pull a blob from another given a URL, so replication is a server-side call, not a client re-upload.
Composes with	aggregate GB is the sum over the fleet x number of keypairs (oslim's 8 GB is per-pubkey, and pubkeys cost nothing). 24242.io's 60-day access-based retention is defeated by any periodic HEAD.
Reliability	small volunteer hosts, several with unstated total capacity. 24242.io states 'Free and unrestricted... for now'. Prefer BUD-04 mirroring to two servers per chunk.
Notes	24242.io 100 MiB/file, deleted if not accessed for 60 days. blossom.oslim.dev (Lotus): 100 MB/file and 8 GB per pubkey, retention 'permanent', cost 'free'. blossom.nostr.build: 20 MiB/file free tier, 'no limit on how many files, and no expiry'.
Evidence rung	reported One page read moves it to documented.
Checked	2026-10-21 (inherited); stale on 2026-11-04
Parsed numbers	`$.limits[0].value` limit:per-object-cap 100.0 MiB `$.limits[1].value` limit:per-object-cap 100.0 MB

Evidence (5)

date	source	what it proved
2026-10-21	24242.io/	'Free and unrestricted... with no warranties... for now.', 'Files are deleted if not accessed for 60 days', 'Max file size: 100MiB', 'BUD-06 /mirror will only accept a URL from another blossom server'
2026-10-21	blossom.oslim.dev/	'Max file size —, Storage per user —, Retention permanent, Cost free'; README of 0ceanSlim/lotus shows max_upload_size_bytes 104857600, max_storage_per_pubkey_bytes 8589934592
2026-10-21	blossom.nostr.build/	'A hard cap of 100 MiB per upload (20 MiB for free uploads), with no limit on the number of uploads or retention'
2026-10-21	oddbean.com/e/note17emh2aqsswd6fkzezpzykpus4226qkgu3z5gzqrc7	agent report: nostr.download, 24242.io, files.sovbit.host and blossom.primal.net accepted BUD-06 checks at 5 MB AND 100 MB 'with a brand-new key that has never paid anywhere'
2026-10-21	blossom.primal.net/upload	HTTP 400 (endpoint live, rejects unsigned body)

More fields (1)

{
 "unit_note": "free_tier.unit is 'mixed' because the headline is denominated in MiB or KiB, which the schema enum does not carry; the verbatim free_tier.stated keeps the true unit. See the storage-dossier handover."
}

Unknown or withheld values (3)

$.free_tier.notes process
$.per_object_cap.notes not-extracted
$.retention.notes not-extracted

24242.io — public Blossom blob server (Nostr) Storage

caveatanonymousno cardRper-object-cap

24242.io · content-addressed blob server (BUD-01/02/06) · storage/24242-io-public-blossom-blob-server · JSON · compare

Free tier	No account, no quota, no total cap stated — 'Free and unrestricted... with no warranties... for now.' Per-file 100 MiB. First person to upload an object owns it (SHA-256 addressed). unit unlimited; metered on unstated
Price	none stated
Per-object cap	100 MiB/file (104857600 bytes)
Retention	100 MiB/file; files deleted if not accessed for 60 days; /list returns only the first 250 hits; BUD-08 (NIP-94) not implemented (60 days)
Egress	free, unauthenticated GET by SHA-256; served from a public host with no metering published
Identity	anonymous anonymous — a Nostr keypair is the credential; no email, no phone. Verified: HEAD /upload with a BUD-06 pre-flight but no auth header returns 401 'x-reason: Authorization header missing, when required'.
Limits	per-object-cap 100 MiB/file source retention-clamped deleted if not accessed for 60 days source 100 MiB/file; files deleted if not accessed for 60 days; /list returns only the first 250 hits; BUD-08 (NIP-94) not implemented
Binding	per-object-cap the per-object cap sets the shard size and therefore the object count; it bounds the total more tightly than any headline quota
Interface	unknown BUD-01 HTTP: PUT /upload (NIP-98 auth header), GET /<sha256>, HEAD /upload for BUD-06 pre-flight, /mirror for BUD-06
Tooling	any Blossom client (nostr.build, ditto, Amethyst); `nak` for key generation; plain curl once you can sign a NIP-98 event
Composes with	Content-addressed means a chunk map is trivial: `(sha256 → server)` is a complete locator, and BUD-06 /mirror lets one server pull a blob from another — so replication is a one-request operation per chunk.
Reliability	60-day access-decay retention makes this an ephemeral tier, not an archive. 100 MiB/file means ~5,000 objects per 500 GB.
Notes	No account, no quota, no total cap stated — 'Free and unrestricted... with no warranties... for now.' Per-file 100 MiB. First person to upload an object owns it (SHA-256 addressed).
Evidence rung	reported One page read moves it to documented.
Checked	2026-10-21 (inherited); stale on 2026-11-04
Parsed numbers	`$.limits[0].value` limit:per-object-cap 100.0 MiB

Evidence (4)

date	source	what it proved
2026-10-21	24242.io/	'Max file size: 100MiB'; 'Files are deleted if not accessed for 60 days'; 'First person to upload an object owns it'; BUD-06 /mirror accepts only another blossom URL
2026-10-21	24242.io/upload	HEAD (BUD-06 headers) — 401, x-reason: 'Authorization header missing, when required'
2026-10-21	files.sovbit.host/upload	HEAD — 401 (same BUD-06 shape)
2026-10-21	blossom.ditto.pub/upload	HEAD — 401, X-Reason: 'This needs a Nostr auth token (BUD-11)'

Unknown or withheld values (4)

$.free_tier.notes process
$.interface interface-unknown
$.per_object_cap.notes not-extracted
$.retention.notes not-extracted