OpenTechnical

OT-2026-000083443

Publication integrity record

Foam pad vacuum gripper, three zone face, pump fed, 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-2026-000083443) never changes.

Identity and time

Publication numberOT-2026-000083443 · never reused
Internal UUID01a0ae97-c965-7a9f-a57b-2ced771ed44b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083443
StatusPUBLIC

Content hashes

Canonical text5ddf571642fbb06b47c3186722f6d430ae89e035b9f64a584b54facc5243a8bd
Markdown0fe4d4505068e7cce4eb537722923061c20e9644b072abf5641f4d43b0253c04
PDF
Publication page06982d2ea348d94ba5344be7588e840fde0e14d81af9df379428b7cc5fcd99a3
Manifestd2ce263869039e29c76e9724249980ab1b14d005a0ca52f49753f5683fe11cc8

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
Signature2ISFVE98rBRCxd4xxKk97Xav4EJA7AjBGf1lMA0NPqEoFoCdJQ6BqY9v/MZ3hnDWL+n1Lb3ywGImflOgxT8YBA==
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

2026-09-17T09:57:51.779191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083443
observed 06982d2ea348d94ba5344be7588e840f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:51.764781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083443/manifest.json
observed d2ce263869039e29c76e9724249980ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:51.748623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083443/publication.md
observed 0fe4d4505068e7cce4eb537722923061...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:51.732145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083443/publication.txt
observed 5ddf571642fbb06b47c3186722f6d430...
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.