OpenTechnical

OT-2026-000072889

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, single stage ejector, supply line pressure sensor, 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-2026-000072889) never changes.

Identity and time

Publication numberOT-2026-000072889 · never reused
Internal UUID01a0ae92-89db-7301-8408-296891473187 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072889
StatusPUBLIC

Content hashes

Canonical text92dc6478f4c92440ea6b5c32e142096e0d7239bf18e7461b28317946771fadca
Markdown7d96e21d9a72521b915eb1ee02e3610bc4a22b7e39a6cc84ff98399df41d0f7d
PDF
Publication page0abda937c624d2632b1b006044312ac98a12d4cb6c9944e50a07b43577abb147
Manifest6ce8fdbb7c33160d5a1492516148d0ea337d8739b2deb37463b88e0728a9f6bf

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
Signature3VZuc7ZbPWAIgqFyR+ofH24x17tudP/TtXaO3+dGbVR7bBv4wwYhkpLeaydBdNpnHxHC82Yr/qcb/1W9/HMJBw==
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

2026-09-17T10:22:49.144119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072889
observed 0abda937c624d2632b1b006044312ac9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:49.126630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072889/manifest.json
observed 6ce8fdbb7c33160d5a1492516148d0ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:49.109082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072889/publication.md
observed 7d96e21d9a72521b915eb1ee02e3610b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:49.091253ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072889/publication.txt
observed 92dc6478f4c92440ea6b5c32e142096e...
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.