OpenTechnical

OT-2026-000033198

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, pump fed, pulsed blow-off after 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-2026-000033198) never changes.

Identity and time

Publication numberOT-2026-000033198 · never reused
Internal UUID01a0ae75-4844-7ada-8444-12b999fbdd10 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033198
StatusPUBLIC

Content hashes

Canonical textf0047866e7dc4a4aa503ac404db3b65bb1f8a4be338df7512d5be019f910043d
Markdown2922c6c2fe85018e798e090a56589a48f37b709a592abb0d09e3d18d6109256b
PDF
Publication page796e138c812b685aa54139f1e3d53605dd99b5b4963e4c68b2f8b2ef4203ad81
Manifestabdf38e54633cb5044017c70b89482553063b7caee681e68eee994295c166526

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
SignatureSmT/jKkQ5FZVXvYuN54+Mvq6islZgLUBD6bxSU3//CLgiR34C/2KoZnx9tKcBgNNQCTN7pt2OIAdCT2gbTC5Dw==
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

2026-09-17T11:32:53.752140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033198
observed 796e138c812b685aa54139f1e3d53605...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.733458ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033198/manifest.json
observed abdf38e54633cb5044017c70b8948255...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.715349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033198/publication.md
observed 2922c6c2fe85018e798e090a56589a48...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.697090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033198/publication.txt
observed f0047866e7dc4a4aa503ac404db3b65b...
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.