OpenTechnical

OT-2026-000075616

Publication integrity record

Single bellows cup vacuum gripper, 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-2026-000075616) never changes.

Identity and time

Publication numberOT-2026-000075616 · never reused
Internal UUID01a0ae94-29fd-7f0f-8e67-de2a1753d9f4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075616
StatusPUBLIC

Content hashes

Canonical text7ba298b074dee9bf965556aecb066cbea1002744d81d6746700411a3892738f6
Markdownab5a7fc7980063cdec1943eacfa2223658ea80f5adc0345b413c0d3c75987629
PDF
Publication page9e0987bd3e0dcbfe3f52f660f75aaf4be7036dc8d4df2536e4cadf3d6a88bbbd
Manifesteb15d0784b6ea4cfb0c210fcad5ffb3a59d30414549c7fdbe2874ba64dfd4698

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
SignatureJh62/ujX3EHEDOjSJsD9vSx+XDpN49sE5zTaj4FFqqH2Kpxv2EOEQtmGzDvfZrO3mBY7rA5VINdxIfXFu3z3CA==
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

2026-09-17T10:13:19.195785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075616
observed 9e0987bd3e0dcbfe3f52f660f75aaf4b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.054941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075616/manifest.json
observed eb15d0784b6ea4cfb0c210fcad5ffb3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.036501ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075616/publication.md
observed ab5a7fc7980063cdec1943eacfa22236...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:19.016554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075616/publication.txt
observed 7ba298b074dee9bf965556aecb066cbe...
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.