OpenTechnical

OT-2026-000090797

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, three stage ejector, pressure sensor per zone, 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-2026-000090797) never changes.

Identity and time

Publication numberOT-2026-000090797 · never reused
Internal UUID01a0ae9c-7f32-7515-9d90-119bc177d90d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090797
StatusPUBLIC

Content hashes

Canonical text13e762840911081e3618bc93bf18abb5a96bd9192ce7c6d5d5e445dc7a77443d
Markdown3dc9de907c98c4a747ca5c312f338d03d047d9a111b2480a4709d2afe75941b2
PDF
Publication page2a31fa3775fc6e135410ae64bfc03a3ee16f2836cbf02c36f8cb5bb485540ca6
Manifesta31ceeb22f5ddeb364571066f8de15df2f16b4266ddf2e630530f77862d040bb

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
SignatureVAy7Wvc4/TLyuosopKSYJMnVaDUndSL3rrgjB85q4EsqHMwm0RvOlNRl1OQPQzIOYLADRakyuw+IAwNfAkZ9Ag==
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

2026-09-17T09:45:00.271364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090797
observed 2a31fa3775fc6e135410ae64bfc03a3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:00.253665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090797/manifest.json
observed a31ceeb22f5ddeb364571066f8de15df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:00.236791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090797/publication.md
observed 3dc9de907c98c4a747ca5c312f338d03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:00.219305ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090797/publication.txt
observed 13e762840911081e3618bc93bf18abb5...
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.