OpenTechnical

OT-2026-000082790

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000082790) never changes.

Identity and time

Publication numberOT-2026-000082790 · never reused
Internal UUID01a0ae97-8cc9-7373-963d-17a21c60b0f8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:22.827170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000082790
StatusPUBLIC

Content hashes

Canonical text4e835cfb86a047314963e99d0d085f9d381188bca638b97762593ad2b9dd0a2a
Markdown7e57e428d0bc177714e224fe25edc38e9f531641335a68313492fba689c92571
PDF
Publication page31f92476f94412e5b15f3f24094a1ce3c15fe9d058bf056ccd7bf9b3012e74ef
Manifestb5c916dafc96a76ee0980b1eb732d6be76214008ded4227597f123b50676e7fe

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
SignatureuZay0IfbhhsbSG3XWwcwVmG+YK/W9Hk+KjWHvc+l5usUKTs4Zfx7e5R3uT8tSyqpiwhWCLHaz4uKEXHaXS1NDQ==
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

2026-09-17T09:58:22.847055ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082790
observed 31f92476f94412e5b15f3f24094a1ce3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:22.830972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082790/manifest.json
observed b5c916dafc96a76ee0980b1eb732d6be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:22.814791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082790/publication.md
observed 7e57e428d0bc177714e224fe25edc38e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:58:22.798367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000082790/publication.txt
observed 4e835cfb86a047314963e99d0d085f9d...
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.