OpenTechnical

OT-2026-000028063

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, three stage ejector, pulsed 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-2026-000028063) never changes.

Identity and time

Publication numberOT-2026-000028063 · never reused
Internal UUID01a0ae72-a51f-7868-a17d-48e8d872b42e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028063
StatusPUBLIC

Content hashes

Canonical text0156de78499a8e45c03734c1477cc81aa0dfc2b9c4fcaeea87b076853bb8dcb2
Markdown810cfcac95269247d2672c15d1435e7a5283aba4472abb8b0cdb05ea2efff5ff
PDF
Publication page466b27ad7095282c36860eb9bbc9773cb8ca026c023c4cf618226a30691a87ff
Manifest3bd02386bcff85936f9c85980adb1f07b5595285f6e002613d46e675611ed978

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
Signature9n5w4249in6L57WcR7RLvt3Gngpuxm8mtR92byUd+BOxnOJIZmUTYmm+ywk1s2cafRoAWAgLIL56Nw/aRksABg==
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

2026-09-17T11:42:23.911422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028063
observed 466b27ad7095282c36860eb9bbc9773c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.892882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028063/manifest.json
observed 3bd02386bcff85936f9c85980adb1f07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.876614ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028063/publication.md
observed 810cfcac95269247d2672c15d1435e7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:23.860051ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028063/publication.txt
observed 0156de78499a8e45c03734c1477cc81a...
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.