OpenTechnical

OT-2026-000090690

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, two 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-2026-000090690) never changes.

Identity and time

Publication numberOT-2026-000090690 · never reused
Internal UUID01a0ae9c-7f30-7592-ae0f-10d18505d0ab · 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-2026-000090690
StatusPUBLIC

Content hashes

Canonical texted773c8a42ffe98a17cc72374c73937fbf8150d55ebbd581ee7a24b90c2af4e9
Markdownbd10065c2e2419ccada490d913e507d4a69eb8bf14dc06526a55095eb971df87
PDF
Publication page3771a8a54df4b2726d19ffe9b3912ba62bed85ba85d6b4fb8de06aec98ce2583
Manifest8d9b6131e931f255d277b0190852134418c4168ec4636a6dbb1d85bb03cba75f

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
Signaturec3FDi9X8dmD6DdD1nOPYVJV0fg6zJqs2Nw9LKzIlCIh7QYdM0aQOCHtJ+Oats1R6e0wY+sTGI5lrSKT9spQxAg==
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

2026-09-17T09:44:53.412838ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090690
observed 3771a8a54df4b2726d19ffe9b3912ba6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:53.395343ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090690/manifest.json
observed 8d9b6131e931f255d277b01908521344...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:53.376496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090690/publication.md
observed bd10065c2e2419ccada490d913e507d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:53.357548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090690/publication.txt
observed ed773c8a42ffe98a17cc72374c73937f...
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.