OpenTechnical

OT-2026-000074028

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, vented before set-down

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-2026-000074028) never changes.

Identity and time

Publication numberOT-2026-000074028 · never reused
Internal UUID01a0ae93-2b8f-7bdc-bbdd-29fcbc6ae59a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074028
StatusPUBLIC

Content hashes

Canonical text1a8cf345df4555d26e6168285fb358506f3889c4a30f2f0902252ee673430a90
Markdownbf05b9c979cef4201d8cfb50402ca18163881a060b50716a3f81ed6849d28938
PDF
Publication page7e7a89414e6e83102635f0652abad7aec337047b139f846522623d8a68338b8e
Manifest104b214bc4b15bddcaa246ca8fcf1182bb6cb34c0bd8a8f0fadb83d183fc022b

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
SignatureRw62A2DHXfLtp5PvC6/0URwTEcZn8xs78p9hzCM56JJkVrBwm6DRCYNAUiJwSWc5xcECrtpIhquejmQ5LIsVAA==
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

2026-09-17T10:20:20.614174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074028
observed 7e7a89414e6e83102635f0652abad7ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:20.594081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074028/manifest.json
observed 104b214bc4b15bddcaa246ca8fcf1182...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:20.574220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074028/publication.md
observed bf05b9c979cef4201d8cfb50402ca181...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:20.552029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074028/publication.txt
observed 1a8cf345df4555d26e6168285fb35850...
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.