OpenTechnical

OT-2026-000033490

Publication integrity record

Foam pad vacuum gripper, common isolation valve, three stage ejector, pulsed blow-off after 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-2026-000033490) never changes.

Identity and time

Publication numberOT-2026-000033490 · never reused
Internal UUID01a0ae75-a38e-7b45-980e-0139dca5a065 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:20.325649Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033490
StatusPUBLIC

Content hashes

Canonical text40c11bc0eee4955a2e145ad42f678c10d39cc1c4da4b874fee608d1c8dbdd67a
Markdown563f494c8a4971d1b9184edb72057cc4fcfddc73b9b736464042c016416299af
PDF
Publication page3fafa16dfede656a954a5421f18089bf84e917a450ad754dc949522e5425d746
Manifest9dd13184b356b287daecdc98b508c2b9a0370cd3865022f451bcdac766146efd

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
SignaturejLGlpb/J81XYl+s24+z61ryCP9M9xCrqYazqyjyTchpq7CDNQSIn/+hLfRNA0s9XJxkYJckC8NmgRM+WuPYMBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:31:20.272813ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033490
observed 3fafa16dfede656a954a5421f18089bf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:20.255090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033490/manifest.json
observed 9dd13184b356b287daecdc98b508c2b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:20.235315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033490/publication.md
observed 563f494c8a4971d1b9184edb72057cc4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:20.216390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033490/publication.txt
observed 40c11bc0eee4955a2e145ad42f678c10...
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.