OpenTechnical

OT-2026-000081310

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump 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-2026-000081310) never changes.

Identity and time

Publication numberOT-2026-000081310 · never reused
Internal UUID01a0ae96-f374-7c25-9527-6f1f6e5746f6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081310
StatusPUBLIC

Content hashes

Canonical textd5f5b7710a9d20bc1c01de8e0123f217085fbbd78faaf60d9ebc0e251cf59e97
Markdownc8c9c19acab5ade2d19168fabb63b36e39da907ff08d8d7e773b6c178e0f06cc
PDF
Publication pagec97aa0dd66ec0c5f1bce10285758742f0054a9be7ec0482b50e06ee9f9782832
Manifeste2d43c220cddcfcf2e73254bba6661ee8e7a4f2c50c20da7d1a9c9862420a51c

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
Signaturef4PNsKGIh3YV72hdysQMiftng517UHXh58RTPIByLSx9vgFv9GmybNnWWIqpSKVO8P4Yw4dXrCAnyjdK6bftAg==
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

2026-09-17T10:01:25.477448ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081310
observed c97aa0dd66ec0c5f1bce10285758742f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.458839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081310/manifest.json
observed e2d43c220cddcfcf2e73254bba6661ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.440915ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081310/publication.md
observed c8c9c19acab5ade2d19168fabb63b36e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.421172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081310/publication.txt
observed d5f5b7710a9d20bc1c01de8e0123f217...
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.