OpenTechnical

OT-2026-000072471

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, single stage ejector, 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-2026-000072471) never changes.

Identity and time

Publication numberOT-2026-000072471 · never reused
Internal UUID01a0ae92-89d8-74f0-9567-feb327b787e1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072471
StatusPUBLIC

Content hashes

Canonical text2451d5cdb09b27586c78ed00adca7971663c5ca35112ce37bbe250b696099141
Markdownf8987e0fdb5299d1ee8fb3b92c8d693213c93ff37e461fe801be71fd20dc3d2c
PDF
Publication page16acaa11dac688f582c73e39af4acabb7b192635664ba90889107005893d106b
Manifest073c866ceb21b8a036106cc47376770d479cb7955425df5318c9db1e3493d75f

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
SignaturebEJY0OjrExb8Vz3vHlbod0kB3g0pqlqwxI7k6/xP7s7ETzAl+x+6wkoNbxcXOy1yQ1GAYP4aT/F9pO7r9ubMCw==
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

2026-09-17T10:22:17.820883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072471
observed 16acaa11dac688f582c73e39af4acabb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:17.802684ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072471/manifest.json
observed 073c866ceb21b8a036106cc47376770d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:17.785032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072471/publication.md
observed f8987e0fdb5299d1ee8fb3b92c8d6932...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:17.768210ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072471/publication.txt
observed 2451d5cdb09b27586c78ed00adca7971...
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.