OpenTechnical

OT-2026-000089556

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, three stage ejector, manifold pressure sensor, 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-2026-000089556) never changes.

Identity and time

Publication numberOT-2026-000089556 · never reused
Internal UUID01a0ae9c-1a21-7a85-88a3-a446be8ea2e2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089556
StatusPUBLIC

Content hashes

Canonical textab00985a77c782dd046ef2677f47644b06f8ab985e7e57fb0be26ea4b32eef92
Markdown16a05f75a3639f24b5c665d3a025bb88fe4547aed4951c40489503390b220f1a
PDF
Publication page7ab9b62ed18db2cb7238e21cabb16459434853e4a25a0de137feb4713fe08b61
Manifest33e9c942b1adbec13409c8f9f3a014874792d3daa80a3d54a19b3a776165e5c1

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
SignatureD2s5QLMyIV8cmjPMTZ9jZEfa2pEzSBFsoCeiLVpAojdNH949LWngOp8tnLtfoFd26xEzOheuXnbgLQBDdRzWBA==
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

2026-09-17T09:46:31.158923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089556
observed 7ab9b62ed18db2cb7238e21cabb16459...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:31.141544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089556/manifest.json
observed 33e9c942b1adbec13409c8f9f3a01487...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:31.124823ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089556/publication.md
observed 16a05f75a3639f24b5c665d3a025bb88...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:31.107155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089556/publication.txt
observed ab00985a77c782dd046ef2677f47644b...
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.