OpenTechnical

OT-2026-000081533

Publication integrity record

Foam pad vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, sustained 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-2026-000081533) never changes.

Identity and time

Publication numberOT-2026-000081533 · never reused
Internal UUID01a0ae97-0f71-7dac-a6bf-ef1d4f01afab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081533
StatusPUBLIC

Content hashes

Canonical textd2a30ed633abd0db5b8540ec2ea79499a5ea98f7d56953aba143061ccb5d84f9
Markdown620a2bb318f11333387b4491d90882482e1492f4940c60d1f59325d0d908403a
PDF
Publication page9b5d7d3847eae137eeb8c626133e3a2139de24923f54db0d2a32326169ead50f
Manifest5a8317ea9d1f39bf8232fa3bbbfa8ff157e3783f61d1e62f363d1a6ed1287be3

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
Signatureq+0tybl0nfGMpbUsJhmCiIA5OhPd/d36y/AYkultrOS5OophRXPTSGZpc/+eZvZoTW6XIOTgsEMMWxQzsPvuDg==
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

2026-09-17T09:59:33.264373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081533
observed 9b5d7d3847eae137eeb8c626133e3a21...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:33.247265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081533/manifest.json
observed 5a8317ea9d1f39bf8232fa3bbbfa8ff1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:33.228743ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081533/publication.md
observed 620a2bb318f11333387b4491d9088248...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:33.212063ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081533/publication.txt
observed d2a30ed633abd0db5b8540ec2ea79499...
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.