OpenTechnical

OT-2026-000005981

Publication integrity record

Vacuum cup gripper, three outlet manifold, two stage ejector, contact triggered, vented 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-2026-000005981) never changes.

Identity and time

Publication numberOT-2026-000005981 · never reused
Internal UUID01a0a94b-3841-77bb-8e30-15f4db87c37b · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:17:54.244450Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005981
StatusPUBLIC

Content hashes

Canonical textee52d991afb823fae5cc29319d6bc1084ead6baccf865340f97054171f246248
Markdownf5ecbf81a225f6aafb36bcad8d4618591e021a95fb621e1f929384bc915c26bf
PDF
Publication page2ad8eaeda2e8ae5a648c2ac7189252954cb0c80e45393fc63328c9df2f6f1170
Manifestac17b9a626309a20603b505f95471229fbb0a8aa6d5ef9909b73f475cef9b543

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
Signature132qoJNiI7D5AHiMtZDEa88REfz1m4C/RAKXUxU6r7MAuQJOOGq8zbeC3eGTtXYba9IVFv6SKc7jYrEOdXztDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:09.948994ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005981
observed 2ad8eaeda2e8ae5a648c2ac718925295...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:09.934078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005981/manifest.json
observed ac17b9a626309a20603b505f95471229...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:09.916116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005981/publication.md
observed f5ecbf81a225f6aafb36bcad8d461859...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:09.899964ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005981/publication.txt
observed ee52d991afb823fae5cc29319d6bc108...
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.