OpenTechnical

OT-2026-000089834

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, single 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-2026-000089834) never changes.

Identity and time

Publication numberOT-2026-000089834 · never reused
Internal UUID01a0ae9c-428d-73a2-b3a9-2ab403b61ca3 · 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-2026-000089834
StatusPUBLIC

Content hashes

Canonical text8bbcebcda515d7e726be1b96f15c7317746f92c86070a6a15f296983a8eef451
Markdown8b7879be85764fb27c59f64a80fd9c0e4b43da63ced4495899ea2027a4d36383
PDF
Publication page013f1df44242bf7abf62da8c0b5d4437a6f15edfd41948ec913ed6234da6c70f
Manifestf3782b7f0c7cc72a985bee0afff2f856c527d3753799b11a8e157bf88ec9437c

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
SignaturecifK3sUFQm71Q3++AgQFGLL43qbbj3slgX8okbEdEEbqAZzSerih5PAJBkBTrmJfqs7koFc368osslc7KvCsBQ==
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

2026-09-17T09:45:04.477030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089834
observed 013f1df44242bf7abf62da8c0b5d4437...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:04.459101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089834/manifest.json
observed f3782b7f0c7cc72a985bee0afff2f856...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:04.442276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089834/publication.md
observed 8b7879be85764fb27c59f64a80fd9c0e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:04.424293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089834/publication.txt
observed 8bbcebcda515d7e726be1b96f15c7317...
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.