OpenTechnical

OT-2026-000074331

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000074331) never changes.

Identity and time

Publication numberOT-2026-000074331 · never reused
Internal UUID01a0ae93-7179-7f71-a6ba-65ca58c5ebbe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074331
StatusPUBLIC

Content hashes

Canonical text783e6c0650b998fc68aa34277244a129817182cb3688a1a33c72023217d13843
Markdownd1d601f55e5b75a2a5a26f7f2e43566f92dbeb2407d277273329b479551ae77f
PDF
Publication page3a9f088cad9aab92ef4f2d33d4897a26d33ad2dd0f75fb09f4f79cf09fdfc57a
Manifest51c6c7da8d2ffb5c77200506727c744fb6a37633fceb06b09be6f18809d9d5f0

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
SignatureM0jQitBlxoIMCp+UYThJVbnC3mnexkxdsYbzQ364Qv4ipyL4uvYsdrQC5eimWhHXtYoC+gtRISYwQTLetLohBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:19:15.017129ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074331
observed 3a9f088cad9aab92ef4f2d33d4897a26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:14.998798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074331/manifest.json
observed 51c6c7da8d2ffb5c77200506727c744f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:14.981337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074331/publication.md
observed d1d601f55e5b75a2a5a26f7f2e43566f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:14.963455ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074331/publication.txt
observed 783e6c0650b998fc68aa34277244a129...
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.