> NOTICE — Pre-launch build. Every record here is a dated observation of a real MCP endpoint operated by a third party, rendered from the published archive. Coverage is partial — the figures cover the snapshots in the export this build was made from, not the whole chain and not the whole ecosystem. Claims and badges are not open.

# mcp.pcrzero.com/mcp

Last observed: 2026-08-30T09:04:54.161Z
Recorded as: OK
Transport: streamable-http
Observations held: 18
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-13T09:13:41.385Z | REL-SNAP-009 | OK | - | 957 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-14T09:26:59.791Z | REL-SNAP-010 | OK | - | 525 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-15T09:16:47.539Z | REL-SNAP-011 | OK | - | 491 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-16T09:18:36.159Z | REL-SNAP-012 | OK | - | 1086 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-17T11:47:30.943Z | REL-SNAP-013 | OK | - | 489 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-18T09:15:48.899Z | REL-SNAP-014 | OK | - | 1100 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-19T08:59:38.374Z | REL-SNAP-015 | OK | - | 216 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-20T09:07:58.420Z | REL-SNAP-016 | OK | - | 442 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-21T09:23:29.416Z | REL-SNAP-017 | OK | - | 216 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-22T09:00:01.002Z | REL-SNAP-018 | OK | - | 221 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-23T10:00:48.742Z | REL-SNAP-019 | OK | - | 792 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-24T09:03:35.774Z | REL-SNAP-020 | OK | - | 219 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-25T09:05:57.311Z | REL-SNAP-021 | OK | - | 417 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-26T09:02:14.825Z | REL-SNAP-022 | OK | - | 428 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-27T09:15:38.092Z | REL-SNAP-023 | OK | - | 430 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-28T09:13:26.186Z | REL-SNAP-024 | OK | - | 417 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-29T09:03:01.690Z | REL-SNAP-025 | OK | - | 396 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |
| 2026-08-30T09:04:54.161Z | REL-SNAP-026 | OK | - | 219 | 3 | d54fecfd4641ac5f68e07058f193cef5674cddc299295a83bf5ffd39b3b3e8da |

## Identity

Record key: mcp.pcrzero.com/mcp (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): com.pcrzero/mcp (what the registry said when we swept it, as observed by us — not evidence that the registry was correct, that the name belongs to whoever registered it, or that it still resolves)
Name reported by the server: PCRZERO (self-reported, unverified, never used as identity)

Each observation carries a merkle leaf in the snapshot it belongs to. The chain
establishes that a root existed by a given time; it does not establish that any
measurement is true.