OpenTechnical

OT-2026-000074891

Publication integrity record

Foam pad vacuum gripper, four zone face, four 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-2026-000074891) never changes.

Identity and time

Publication numberOT-2026-000074891 · never reused
Internal UUID01a0ae93-ac2c-7353-97f8-c524bdc651e4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074891
StatusPUBLIC

Content hashes

Canonical text6fbc1ed78c19d4abcaaeb4ab262f47a4ede45de36abffab24ceb9f6d6728f360
Markdownd0ae6d5c9b6264f3ce4332664ad47b7e9b9003e7be5263f9d5d58130f064e917
PDF
Publication page8f570fba0c1f62bbe9ed2575214e6a16bd0be7abaab15c1aab5ef53f16968cc6
Manifestd8cc2dd409c84be3a02ba3f9609e87f448458483c63c7425ff45cf7655d21bd9

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
Signature0vrsj7NfLe27pxXLBLhU4oFE/sOrs1P+BL6U2e+TRRVULDIo7ZIkUsiYoWThxhi7nE6MGTF2aFrKZCWkHpgdAQ==
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

2026-09-17T10:18:36.813464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074891
observed 8f570fba0c1f62bbe9ed2575214e6a16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:36.795419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074891/manifest.json
observed d8cc2dd409c84be3a02ba3f9609e87f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:36.778598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074891/publication.md
observed d0ae6d5c9b6264f3ce4332664ad47b7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:36.761352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074891/publication.txt
observed 6fbc1ed78c19d4abcaaeb4ab262f47a4...
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.