OpenTechnical

OT-2026-000091202

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, two stage ejector, 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-2026-000091202) never changes.

Identity and time

Publication numberOT-2026-000091202 · never reused
Internal UUID01a0ae9c-f16b-7ec2-935f-cd1d6665fb01 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091202
StatusPUBLIC

Content hashes

Canonical text12453610f68f35c9273aaf0273d89f21758994d0f835757ea212d534561431bc
Markdown73f3d1784bf82a4a36cad2eb2918924f3e19a7c59dd3f1d188116fd751978750
PDF
Publication page7c133a1f68c9fc4fe9a769c1083a64cb3b4fcd478c0d5329cd330430be6979ea
Manifest7078c45933ff0d0c0c2b689cebf52835888fa86bb28b18c549d0ff091e9a3923

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
SignaturePa5jeQuoF3sUQUtRvKzjuegDnALuMjI/vnQN14x0jIsJlA4vgIcmTpZ//uUo0bCUVEgku5UGhFnGkjNXeZ/pAw==
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

2026-09-17T09:43:22.115331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091202
observed 7c133a1f68c9fc4fe9a769c1083a64cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:22.091082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091202/manifest.json
observed 7078c45933ff0d0c0c2b689cebf52835...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:21.943854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091202/publication.md
observed 73f3d1784bf82a4a36cad2eb2918924f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:21.924568ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091202/publication.txt
observed 12453610f68f35c9273aaf0273d89f21...
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.