[ EXTERNAL TELEMETRY / JAM-PUBLIC-DEVNET ]

IS JAM DOWN
FOR EVERYONE
OR JUST ME?

?
LOADINGREADING THE LATEST EXTERNAL PROBE
WEBTRANSPORT—/6
JAM UP0—/6
ANNOUNCING—/6
LAST CHECK—
01

COMPARE YOUR PATH

The published result comes from an external GitHub-hosted Chromium probe. Run the same certificate-pinned WebTransport and JAM UP0 check from this browser to compare paths. Chrome is the reference browser. Safari 26 uses a different HTTP/3 WebTransport negotiation than the validators’ draft-02 endpoint; Safari failures before JAM UP0 are reported as inconclusive, not as validator downtime.

NO LOCAL RESULT
02

EXTERNAL VALIDATOR ARRAY

UNITENDPOINTWEBTRANSPORTUP0ANNOUNCEMENTLATENCY
WAITING FOR DATA
03

ROLLING AVAILABILITY

04

WHAT THIS PROVES

SITE — the public jamlc.paseo.fyi shell answers.

TRANSPORT — Chromium completes WebTransport using the validators’ reconstructed P-256 certificate pins.

PROTOCOL — each endpoint exchanges a framed JAM UP0 handshake and emits a live block announcement.

LIMIT — external probes sample one path. The visitor test adds your path; neither result represents every ISP or region.