OpenTechnical

OT-2026-000031204

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000031204) never changes.

Identity and time

Publication numberOT-2026-000031204 · never reused
Internal UUID01a0ae74-87ab-7fed-9cb4-b2e116a8aa5b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031204
StatusPUBLIC

Content hashes

Canonical textc3019665422332496462a67b9126f798315ca10a17082d359e59ac391e370137
Markdown9f979cd992ac6190b39373fc8b9a82d95ab2f8c7bad154f0e8dceec46a0fc7d2
PDF
Publication page330ddc9bf109f929896b75d0f5e5c8a4099410663f6ecee32a78e64bff5f1ba7
Manifest70e3a582c460ead926560fff4739057fdc9f8d045d98d47e5ff70a4c280460c2

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureoUPa2lGDyIUJJUXz1YBGPohqZFuxg20gxxZ521PVvr8qV8i14xXH6CYGNuF6YyHcnnACEWzAjVZeNQEtcHElAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:35:46.045257ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031204
observed 330ddc9bf109f929896b75d0f5e5c8a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:46.028507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031204/manifest.json
observed 70e3a582c460ead926560fff4739057f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:46.009826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031204/publication.md
observed 9f979cd992ac6190b39373fc8b9a82d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:45.991296ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031204/publication.txt
observed c3019665422332496462a67b9126f798...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.