OpenTechnical

OT-2026-000089571

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, 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-2026-000089571) never changes.

Identity and time

Publication numberOT-2026-000089571 · never reused
Internal UUID01a0ae9c-1a21-7b66-8b86-ddad40319646 · 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-2026-000089571
StatusPUBLIC

Content hashes

Canonical text1ddd02e6ba7cdb3a096a12fe6fd94aae2946cfe579f3ad6fd85a83f86a9b1565
Markdown8f64f797f98dd47dbce64d6163d379aa138a495da18f1135a967b99249baa065
PDF
Publication pagea27c3068881f4f1c4921c9f0924d827450eceea57e71185859be17e1eca9ac7f
Manifest0de5cbb1db72d486f7aeb761e7e61ea6d630424e666a211970e2055dc2594bbc

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
Signature8++euiclyX8IJCIFjprTE3/H/WS48uOR5D4qd/nXwU/GtCWHMnsXu3nlWgBK3kxBIzYxA7hWQIOfqkeaZO/JBw==
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

2026-09-17T09:46:32.746240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089571
observed a27c3068881f4f1c4921c9f0924d8274...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:32.728889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089571/manifest.json
observed 0de5cbb1db72d486f7aeb761e7e61ea6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:32.711176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089571/publication.md
observed 8f64f797f98dd47dbce64d6163d379aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:32.693929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089571/publication.txt
observed 1ddd02e6ba7cdb3a096a12fe6fd94aae...
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.