OpenTechnical

OT-2026-000073871

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, plant vacuum 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-2026-000073871) never changes.

Identity and time

Publication numberOT-2026-000073871 · never reused
Internal UUID01a0ae93-2b8e-7941-9dd1-51dcbea69355 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073871
StatusPUBLIC

Content hashes

Canonical text8471c91d0daa87257a2b64c22dade929e8150b9862ab9035d9fd0c888b9347ec
Markdownf7c06a8d6000b3a0449f34bdf4ce6d1516f3b6feba1aeaa3b80d556ce74e6773
PDF
Publication page8aeac8ec06fa1990d124b78b921c572a99c7f1964824767130b6f31b6220d47b
Manifest9cf84bf09f9bac667b8917a7859d61a56ca5db9c56bfe0088b9f7c0d8afd0207

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
SignatureFWRYjjrlpR63kT2sZf0Ylbwm4+S+vao8tFLXscKtLppkJeApW+wDeZubIuSNO54O7KArjbsQzJk4TAI9eeaEAQ==
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

2026-09-17T10:20:01.007020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073871
observed 8aeac8ec06fa1990d124b78b921c572a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:00.987357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073871/manifest.json
observed 9cf84bf09f9bac667b8917a7859d61a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:00.967033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073871/publication.md
observed f7c06a8d6000b3a0449f34bdf4ce6d15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:00.946478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073871/publication.txt
observed 8471c91d0daa87257a2b64c22dade929...
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.