OpenTechnical

OT-2026-000074280

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, vented 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-2026-000074280) never changes.

Identity and time

Publication numberOT-2026-000074280 · never reused
Internal UUID01a0ae93-7178-7bd0-aea0-0295d67cf672 · 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-2026-000074280
StatusPUBLIC

Content hashes

Canonical text12a9a039f89cf4a5d1fd94d69fe776725efe65597f51e64d0adda2946d9e72f9
Markdown95c04fade93a08b79828ed1f47b3cfffd53f349f7dcc69c8a96787dfbbae7143
PDF
Publication pageb1cf6b934499354bae8f606c789c4daf94f88caf9dc44476f05bb76d18ec7336
Manifest39abbae7725df966dc268f0ee9cef2bf1e942ba70f266cf062a97d23047e9fe1

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
SignaturexU0rNtwnkMQiu6rUuh3gVVX7su+XalGYQJ5/IIQqhHO/86lB91MyR2wDUYn1R3pJBah842LmdLj14PMzW2XUBg==
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

2026-09-17T10:19:11.238384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074280
observed b1cf6b934499354bae8f606c789c4daf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:11.220038ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074280/manifest.json
observed 39abbae7725df966dc268f0ee9cef2bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:11.202351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074280/publication.md
observed 95c04fade93a08b79828ed1f47b3cfff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:11.183182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074280/publication.txt
observed 12a9a039f89cf4a5d1fd94d69fe77672...
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.