OpenTechnical

OT-2026-000033890

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, 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-2026-000033890) never changes.

Identity and time

Publication numberOT-2026-000033890 · never reused
Internal UUID01a0ae75-a391-72d7-8af4-4d969c7d8161 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:20.325649Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033890
StatusPUBLIC

Content hashes

Canonical textc313ca8efedde776318573be8a90f34fe240ffe4102784f0ec154252cf4f0d75
Markdownd57947d993b632b1ea8360df1cb51348f96c374cd52724d67bbfaf1b8abd495a
PDF
Publication page4c4c86519f78d907222e79dad3632902d17b32ba3a002331b4a86e2393dc95cf
Manifest407cacfffab673cfe78f4f2b517bc7feaa6a2cb2f5c7b56676567441528cc2eb

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
SignaturegX5FAxr8XEGq/Qh6JcINJV56nRUWK9K8c2a3L9WBzfItxFMAwf9GgdM+80ljOaZbarimpDQmrHOxF4VhenG0DA==
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

2026-09-17T11:31:57.854076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033890
observed 4c4c86519f78d907222e79dad3632902...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:57.833408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033890/manifest.json
observed 407cacfffab673cfe78f4f2b517bc7fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:57.814222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033890/publication.md
observed d57947d993b632b1ea8360df1cb51348...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:57.794518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033890/publication.txt
observed c313ca8efedde776318573be8a90f34f...
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.