OpenTechnical

OT-2026-000090329

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, 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-2026-000090329) never changes.

Identity and time

Publication numberOT-2026-000090329 · never reused
Internal UUID01a0ae9c-7f2c-771e-bcff-4219083da2db · 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-2026-000090329
StatusPUBLIC

Content hashes

Canonical text14dc20465d4e27ef3527352cda6dd70bc61215cd434ca98a73e9712137719c36
Markdown3a55288f762a22e26ca8b77dbbfaffb80a5d51804b66eb5d82a95f4072459907
PDF
Publication page823841f3ddb95b6caec4906a646fb2c805c230954b049eccee311727b5f4be11
Manifestcb1f6a7a2928868fa27f9dcdd95696ba7595c816e98462ce034e88db7d286fa1

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
Signature4pmJZ4XZQOWEt2bfSdF6mnwAkrxGja0adeIyk6iNCpklX0a2pWASCjUAe+WfMFW4QA5IHOmcaVpeqERJ/bS2Ag==
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

2026-09-17T09:44:25.068520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090329
observed 823841f3ddb95b6caec4906a646fb2c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.051141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090329/manifest.json
observed cb1f6a7a2928868fa27f9dcdd95696ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.033968ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090329/publication.md
observed 3a55288f762a22e26ca8b77dbbfaffb8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.014429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090329/publication.txt
observed 14dc20465d4e27ef3527352cda6dd70b...
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.