OpenTechnical

OT-2026-000077243

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, two stage ejector, pressure sensor per zone, pulsed 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-2026-000077243) never changes.

Identity and time

Publication numberOT-2026-000077243 · never reused
Internal UUID01a0ae94-f508-7174-9491-42e8ff2bdf95 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077243
StatusPUBLIC

Content hashes

Canonical text17bda52fa546faa3095640935c20aaba16a961eab28fb5825fa9e2746be771ab
Markdown66b330a88bfd04106ed845c4de19f5c6dd2c0e5e9597a4959f5b626574a5bd87
PDF
Publication page06fa08539e83bb7fa61191abec1e32be17321ea379e3935131cf37f5c9da2aab
Manifest3ac35145b503d2323bbcd7a2936792185806f84fd3b97aac548d51920b13a04f

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
SignatureEYP2rZ/c6qcY1lHu6NPLahwhdFqkT6YntXRgzOPqioZdj6zwyeWYpXUoaE8wMPqsjrbJcYooLaJSaSBWpUG+AA==
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

2026-09-17T10:08:51.544071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077243
observed 06fa08539e83bb7fa61191abec1e32be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:51.525746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077243/manifest.json
observed 3ac35145b503d2323bbcd7a293679218...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:51.506123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077243/publication.md
observed 66b330a88bfd04106ed845c4de19f5c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:51.486671ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077243/publication.txt
observed 17bda52fa546faa3095640935c20aaba...
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.