OpenTechnical

OT-2026-000078781

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, plant vacuum fed, pressure sensor per zone, pulsed blow-off 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-2026-000078781) never changes.

Identity and time

Publication numberOT-2026-000078781 · never reused
Internal UUID01a0ae95-ccbd-745d-a97c-f12e873be70c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078781
StatusPUBLIC

Content hashes

Canonical textd974cdc82a7ced727b5a1c5deea16de2b5f642f94be90e41b5fe7d596f4fdddf
Markdown81285af199280505b8d15384719f11bba5caca7b5861b54c8ea544bf4a339bbd
PDF
Publication page83589dd3904a267c339d1acd6f2ed9b42a0f443820b00a8ae424f2b591e1c5f8
Manifest7d1ddba812e8258a6bcdc37a5ee96ce9eba82c31b2a44417299511ebe756e7de

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
SignatureX51hQDDwty8gTKCWv90bDpFDYiH+F8IK3+nxVI/MWb038nIkcAGRvrWPWZMRRM5I0d0pNRwHgldsPxjZZfcmDg==
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

2026-09-17T10:05:34.195635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078781
observed 83589dd3904a267c339d1acd6f2ed9b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:34.178745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078781/manifest.json
observed 7d1ddba812e8258a6bcdc37a5ee96ce9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:34.161014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078781/publication.md
observed 81285af199280505b8d15384719f11bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:34.142022ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078781/publication.txt
observed d974cdc82a7ced727b5a1c5deea16de2...
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.