OpenTechnical

OT-2026-000089539

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, manifold pressure sensor, 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-2026-000089539) never changes.

Identity and time

Publication numberOT-2026-000089539 · never reused
Internal UUID01a0ae9c-1a21-7601-b474-ac9c8738e45e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089539
StatusPUBLIC

Content hashes

Canonical texte4d888a150e4a9d57b36389a56f90c76852d70e67c3ab9d879e4c1a3a94a6e11
Markdown192b059f68b2abfade281b6118a0fd0189d8492dde4caca67181f5c9aa2d46e0
PDF
Publication page0d7d1bcdab955e4f6dbcd6e3d2fd48b6cd7ee4e77783c4a93238132c68d0fb22
Manifest8e7e0894f0612818e03503877682105fe04f3f1fc4a260484cc0234b26e45483

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
SignatureCaQhh1hI9fkESzDntoh405Bg73hUBNmNwz0fZw+2P8YCJb70iJeuLTUcD3qPrCDllHuaiOG/SnmhjI8oQ8+RDg==
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

2026-09-17T09:46:30.270624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089539
observed 0d7d1bcdab955e4f6dbcd6e3d2fd48b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:30.252124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089539/manifest.json
observed 8e7e0894f0612818e03503877682105f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:30.234379ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089539/publication.md
observed 192b059f68b2abfade281b6118a0fd01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:30.215480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089539/publication.txt
observed e4d888a150e4a9d57b36389a56f90c76...
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.