OpenTechnical

OT-2026-000090899

Publication integrity record

Two cup vacuum gripper, two 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-2026-000090899) never changes.

Identity and time

Publication numberOT-2026-000090899 · never reused
Internal UUID01a0ae9c-c011-74a5-930a-1cb78849b01b · 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-2026-000090899
StatusPUBLIC

Content hashes

Canonical text57107398e2256295b5d9b7fa4385163add8e94a1f34769032acea4fb1ef95fcd
Markdown611d36a1b6f96af651be753d6471e5fdbf949c66716dd6b1c6f645645abe1657
PDF
Publication page9f0eb03f0fda76c169778e8b94290c5fd1206d9fce3d45faacfd3a6bea67a904
Manifest44f948de5dfaf508861a8d03a9539b6135f443a4148cad268a4d87a121837de2

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
Signature1lBk2EhrrR0IKGnRGLfFu4mVk+fVTOEmciNICQGUVMoqCYkC9bh5fjgefgHzFuvDbPGvGZE7z8P1V54/Z3cnDA==
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

2026-09-17T09:44:06.205725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090899
observed 9f0eb03f0fda76c169778e8b94290c5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:06.186012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090899/manifest.json
observed 44f948de5dfaf508861a8d03a9539b61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:06.167785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090899/publication.md
observed 611d36a1b6f96af651be753d6471e5fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:06.149349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090899/publication.txt
observed 57107398e2256295b5d9b7fa4385163a...
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.