OpenTechnical

OT-2026-000087250

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, pump fed, sustained 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-2026-000087250) never changes.

Identity and time

Publication numberOT-2026-000087250 · never reused
Internal UUID01a0ae9a-9f2e-7431-971e-1fe690ae0b10 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:44.027043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087250
StatusPUBLIC

Content hashes

Canonical text07aef21ef402d59b357ee003095af9691f398233feca46df599c26fdaae63cf0
Markdown9f9be52a3286710ade2e5175600ace51fb4e0f3e0053e10af93da1e31d4bb81e
PDF
Publication page1a88402fd3cb7e6cb6af1a069f53b1dbd3f0d7bce8710696ab2756dc097fd65a
Manifestddbd0660be90a5645d990b7c99ada2b99e5b64994d017dea80fb57e94fb5b14c

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
SignatureSd38M8GSmCWpqtFLJsK8ngItom8Do4mXlHCe5abYB6aFlj++nENqjG5+ZHbThpoMpAmQ1HhQXq3C3qty2Y9MDw==
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

2026-09-17T09:51:33.188320ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087250
observed 1a88402fd3cb7e6cb6af1a069f53b1db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:33.172808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087250/manifest.json
observed ddbd0660be90a5645d990b7c99ada2b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:33.156137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087250/publication.md
observed 9f9be52a3286710ade2e5175600ace51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:33.139979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087250/publication.txt
observed 07aef21ef402d59b357ee003095af969...
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.