OpenTechnical

OT-2026-000071303

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, supply line pressure sensor, pulsed blow-off 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-2026-000071303) never changes.

Identity and time

Publication numberOT-2026-000071303 · never reused
Internal UUID01a0ae91-e0ec-7afa-aa7b-303034bffd15 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071303
StatusPUBLIC

Content hashes

Canonical text8b8e96a4ff35dab0d8659fccef821e03359c8e9ddecf37f09981ba993a8286bd
Markdown050de64e59eedf2bfcccbdedf156a51a41f38bb2fe720a16eb22171612f468b8
PDF
Publication page0bf6584f31d89d8fef35f946b60ce9732be11ba108d41290d08a518fcc5ee315
Manifestf88355917b5d93292db501bc1548863d6b5ccf3719b1be1a2ffc46b3517a6f63

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
Signature3zGCzudT3Pt3DaLCL1krotOEO/z76zkKJcAAOlGv6Ix29EfBoPWSdalUfWvRmCgV9YAF8N6wf+2Fg55cnoTZCg==
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

2026-09-17T10:24:53.370815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071303
observed 0bf6584f31d89d8fef35f946b60ce973...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:53.353383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071303/manifest.json
observed f88355917b5d93292db501bc1548863d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:53.335176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071303/publication.md
observed 050de64e59eedf2bfcccbdedf156a51a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:24:53.315700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071303/publication.txt
observed 8b8e96a4ff35dab0d8659fccef821e03...
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.