OpenTechnical

OT-2026-000071501

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, plant vacuum fed, supply line 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-2026-000071501) never changes.

Identity and time

Publication numberOT-2026-000071501 · never reused
Internal UUID01a0ae91-e0ee-7433-b1a9-f62ed992869a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071501
StatusPUBLIC

Content hashes

Canonical text750bd338b9e964a273041c5244638328ed18700bf33c2497ec352c09c2613cab
Markdownb71792bf2affe1a9225b94aebf81ad773e35ce3938e4ce6f79503b8ee82a4330
PDF
Publication paged58ce156e7b587a1d55e6ca0dd2af85cb5490196cc65e4bb99ca07a31891c0f7
Manifestf7b0c2084e417a3bb927ac89b54431dc8417fb6606d0cd9f5f79dd2ee1366bac

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
SignaturejstUiL6Q/z8EI4hoDv2v68Zu+pG43An715OqwxnB/6X/GlZHn+oEtBhu1swvwsJ1C/oeyB8HgQDKtnQPRq/kCQ==
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

2026-09-17T10:25:08.746113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071501
observed d58ce156e7b587a1d55e6ca0dd2af85c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:08.727716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071501/manifest.json
observed f7b0c2084e417a3bb927ac89b54431dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:08.709485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071501/publication.md
observed b71792bf2affe1a9225b94aebf81ad77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:08.690692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071501/publication.txt
observed 750bd338b9e964a273041c5244638328...
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.