OpenTechnical

OT-2026-000012833

Publication integrity record

Single cup vacuum gripper, three stage ejector, 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-2026-000012833) never changes.

Identity and time

Publication numberOT-2026-000012833 · never reused
Internal UUID01a0ae6d-5563-7767-9342-137de54e6adc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012833
StatusPUBLIC

Content hashes

Canonical text9d80737dcd142d94cc03e156a4904ee0d3c1eb71fd9387764618005a1f297ba3
Markdownd7087745028d32d77196a13bc2b23739d3a3bf28d0cb77e4e2d01c5fbf40cf56
PDF
Publication page557ffb1bb0c436ac08989cc2ce77a93a3a1b0f97490a3ae2833dbce7c9c5fb5c
Manifest3f4f0fa7434de9818a05d174f7fac474a767793536a46c8c35aeb97679dd8262

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
Signatureiy5fXjS/xxBcIBCk0F5Xrzfeu8PR8acMaG34pvee9U6TytE6jatCg4kClruY7cmZdGxPgcDUR6GRd+eH2YwWAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:10:35.832700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012833
observed 557ffb1bb0c436ac08989cc2ce77a93a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:35.807880ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012833/manifest.json
observed 3f4f0fa7434de9818a05d174f7fac474...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:35.788459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012833/publication.md
observed d7087745028d32d77196a13bc2b23739...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:35.760960ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012833/publication.txt
observed 9d80737dcd142d94cc03e156a4904ee0...
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.