OpenTechnical

OT-2026-000090053

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six 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-2026-000090053) never changes.

Identity and time

Publication numberOT-2026-000090053 · never reused
Internal UUID01a0ae9c-428e-73bf-9f14-57eee4bb6581 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090053
StatusPUBLIC

Content hashes

Canonical textdb63b9374fb3b2870446b38d2f3eef95a7acc6008e3e59ca0b9d8adaa815b530
Markdown806585c8a0a915cda1551157970ead223735a856f1a31e8565a5405247cfd44c
PDF
Publication page47a7af68a9a764d531c4117c7e6c3fa9375854ad92f241db4901f34ec39efffb
Manifestc380ee3628bbc475be2a46a4f1e7ee2e09ef8c18d2dcd3ff878acc3020f581d7

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
SignaturevG2J3kjKcEmVJ3KUeWiSkj/CNyG6QBVPOQJK8NxWp+TGeZYLc4+SDAl5bQy7qO7hwlt4egGWV/OFbCzVeoPMCw==
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

2026-09-17T09:45:27.620573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090053
observed 47a7af68a9a764d531c4117c7e6c3fa9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:27.602039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090053/manifest.json
observed c380ee3628bbc475be2a46a4f1e7ee2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:27.579831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090053/publication.md
observed 806585c8a0a915cda1551157970ead22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:27.558834ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090053/publication.txt
observed db63b9374fb3b2870446b38d2f3eef95...
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.