OpenTechnical

OT-2026-000022806

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, sustained 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-2026-000022806) never changes.

Identity and time

Publication numberOT-2026-000022806 · never reused
Internal UUID01a0ae70-46ea-7b49-bba2-5b4c49e04ec4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022806
StatusPUBLIC

Content hashes

Canonical text39f38531f1604573379991f244786b2068289ead228873698c1bfcb4de4b956d
Markdownffa053789c02b235f00017594e3010536416476667512cdfcecc69e881233787
PDF
Publication page1f7b71707e5f1fe6d028ef140b6817f9862da8ad0d71c59e95d8856d98d41573
Manifest4eb96a34778cdfb89d8c23f876e335187c418ed9e662793075cac048c252f324

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
SignatureQsOuQVAn0jOWDO1r8oKBNgF90TYJ+RKxtSWltIPFHltgI5WdUlT9eGUG8CDf2wGx92NKBRfQQy0iw/cZzS5rBA==
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

2026-09-17T11:52:19.911793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022806
observed 1f7b71707e5f1fe6d028ef140b6817f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:19.893864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022806/manifest.json
observed 4eb96a34778cdfb89d8c23f876e33518...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:19.876725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022806/publication.md
observed ffa053789c02b235f00017594e301053...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:19.858757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022806/publication.txt
observed 39f38531f1604573379991f244786b20...
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.