OpenTechnical

OT-2026-000090064

Publication integrity record

Three 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-2026-000090064) never changes.

Identity and time

Publication numberOT-2026-000090064 · never reused
Internal UUID01a0ae9c-428e-7cc9-8559-715b9aeddaae · 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-2026-000090064
StatusPUBLIC

Content hashes

Canonical text05b4c7b702f4cba55264d3b6caa571f9114d8fffcfebe9bdb8e9d476911bdcc2
Markdown5c8b69e44a9f7682453022b585c4977e832e110be242eb3ac8360c88eb2b1370
PDF
Publication page21d92389c990d384fafba17d9120795ec4bc1a187b53593e421b3d59641b304c
Manifestc7c8a3f1f537bf9699a78d17cc3b8f70e3b3de385c5afb37bd4d1742023204dc

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
SignaturepOOYs9PymJRHqexh38Y1JoN4l1wz2b3ibcN73WNY0pkZM6x+jEkPwlipJddMBvHNpx8kqDlTHxsySi8ssjU4BQ==
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

2026-09-17T09:45:28.575639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090064
observed 21d92389c990d384fafba17d9120795e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:28.557599ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090064/manifest.json
observed c7c8a3f1f537bf9699a78d17cc3b8f70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:28.540429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090064/publication.md
observed 5c8b69e44a9f7682453022b585c4977e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:28.521589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090064/publication.txt
observed 05b4c7b702f4cba55264d3b6caa571f9...
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.