Same view?
Each log our witness follows, checked every hour: at every size where two of our signed observations meet, did the log give the same root? An observation is a checkpoint carrying the log’s own valid signature, read from the log as any reader sees it (hourly from a datacenter in Helsinki and from a home connection in Colorado) or from what our witness cosigned. Two signed checkpoints at one size with different roots would be a fork the log signed; we would publish both here. This cannot see a split aimed only at readers we never are, or a fork between sizes we never both saw. We don’t ask the other witnesses what they signed: the spec’s endpoint for that (c2sp.org/tlog-witness, added 1 July 2026) is not yet in litewitness or omniwitness, the programs most witnesses run, so ours is the only one that answers. Witness names on a checkpoint are recorded as written; only the log’s signature is verified. Running since 2026-11-05; last run 2026-11-09T08:25:02+00:00. Script: splitview.py; every observation: observations.jsonl.
| Log | Sizes seen | Sizes seen from two places, agreeing | Range | Forks | Last run |
|---|---|---|---|---|---|
| android.transparency.goog/google1p/apk/2026/1 | 1,012 | 24 | 207,368–1,004,374 | none | ok |
| android.transparency.goog/mainline/modules/2026/1 | 27 | 1 | 52–994 | none | ok |
| arche2025h1.staging.ct.transparency.dev | 1 | 1 | 1,432,089,734–1,432,089,734 | none | ok |
| arche2025h2.staging.ct.transparency.dev | 1 | 1 | 2,519,548,551–2,519,548,551 | none | ok |
| arche2026h1.staging.ct.transparency.dev | 1 | 1 | 2,865,614,141–2,865,614,141 | none | ok |
| keyserver.geomys.org | 3 | 1 | 80–83 | none | ok |
| log.frem.sh | 1,101 | 9 | 942–70,089 | none | ok |
| log2025-alpha3.rekor.sigstage.dev | 1,000 | 0 | 5,692,761–5,832,011 | none | ok |
| markovianprotocol.com/log | 826 | 17 | 8,204–13,929 | none | ok |
| sigsum.org/v1/tree/1643169b32bef33a3f54f8a353b87c475d19b6223cbb106390d10a29978e1cba | 79 | 2 | 478,499–478,602 | none | ok |
| sigsum.org/v1/tree/4e89cc51651f0d95f3c6127c15e1a42e3ddf7046c5b17b752689c402e773bb4d | 1,099 | 18 | 220,353–268,985 | none | ok |
| sigsum.org/v1/tree/e93cb678c04cc52e4da380c4b19cfa14062032a722da254c65cbd95e7e76321d | 2 | 1 | 60,965–60,972 | none | ok |
| vindex.gopherwatch.org | 1,114 | 4 | 93,561–109,547 | none | ok |