OpenTechnical

OT-2026-000072450

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000072450) never changes.

Identity and time

Publication numberOT-2026-000072450 · never reused
Internal UUID01a0ae92-89d8-7891-b0d6-cbef0bd7aefd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072450
StatusPUBLIC

Content hashes

Canonical text8c329845a7b10de441362da6129c9e506df2dd434dcb325c632463f1cea54c2a
Markdownfb7e55a3101cf4b11bb408c42a8f913b39e47ed65a66b53513909c73cc84b790
PDF
Publication page22351c73f1cbc755dcf27b97491ccd45480ca8d1eacbac77daf3eae9a2d775b7
Manifest537a7ff67908fec1e3b3561c28a299b0cc9c6fbc7afdf6e334ff14cb73e4659e

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
Signaturep2FDd3pwL1agVK3CEMulcukmV4wfU9TfxhLXeFeBCpLatfNqCQC4G55tz5ZeXoRvHjM+hEioa4KictXkXNpOAw==
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

2026-09-17T10:22:16.226624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072450
observed 22351c73f1cbc755dcf27b97491ccd45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.209799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072450/manifest.json
observed 537a7ff67908fec1e3b3561c28a299b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.193204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072450/publication.md
observed fb7e55a3101cf4b11bb408c42a8f913b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.175720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072450/publication.txt
observed 8c329845a7b10de441362da6129c9e50...
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.