OpenTechnical

OT-2026-000090992

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, 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-2026-000090992) never changes.

Identity and time

Publication numberOT-2026-000090992 · never reused
Internal UUID01a0ae9c-c011-7213-bc10-eeb597cc45d9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090992
StatusPUBLIC

Content hashes

Canonical text51ffbc32030181afd788060f8ff80c239cdeb9ef21d859180b3944e688f89461
Markdownf29fe08cb9f9959f59e96d85f4e8e8762b11c2a93c17ef20c2bfbffec4442ca4
PDF
Publication pageb431cd07f7cd2f8570555bddceed3e69a7908ef34da43ef39c95dd6ac9eab4cd
Manifest23b891cdd0fa00e93595d32e0c7b93b675c7362c83b0c8a219c71ccf38bf107e

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
SignaturePP/AshrULHhMmJI3s32BIyMz4jhQTTEaLiowPgA27pU6DS9gIkKfFOqznQXA669Q1wSiu9awQqvyVhVXJVYDAg==
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

2026-09-17T09:44:13.380589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090992
observed b431cd07f7cd2f8570555bddceed3e69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:13.362606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090992/manifest.json
observed 23b891cdd0fa00e93595d32e0c7b93b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:13.345268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090992/publication.md
observed f29fe08cb9f9959f59e96d85f4e8e876...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:13.314602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090992/publication.txt
observed 51ffbc32030181afd788060f8ff80c23...
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.