OpenTechnical

OT-2026-000073879

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, manifold 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-2026-000073879) never changes.

Identity and time

Publication numberOT-2026-000073879 · never reused
Internal UUID01a0ae93-2b8e-7b6d-98e6-d75f740e3938 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073879
StatusPUBLIC

Content hashes

Canonical textf8cddde82f3a5b9adabb1014c7188ef626a588ed2ec4d0ebf4cfca6cd7b6d803
Markdownc8fd33c3527673f1da7f618b80795f47d754cf06a016ddd04da96ba11ca25591
PDF
Publication pagecfd8bc21e7f11926028fb724e1e6cda7c77ab743e126c4b8cf938cce9ba4e0b2
Manifest9f2e9b1203aa678f983682f08369050471ed16ec309090915c0ea675cb185af2

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
Signature21/zViZNg22f5fhZ4UePnL1EPKdKAuIBSiyc1cVnWQkB8pER8TacUEmGnX6pOYGiA0ZFsIYWKjfI2SnAprd2CA==
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

2026-09-17T10:20:01.726920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073879
observed cfd8bc21e7f11926028fb724e1e6cda7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:01.710160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073879/manifest.json
observed 9f2e9b1203aa678f983682f083690504...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:01.690824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073879/publication.md
observed c8fd33c3527673f1da7f618b80795f47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:01.670889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073879/publication.txt
observed f8cddde82f3a5b9adabb1014c7188ef6...
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.