OpenTechnical

OT-2026-000028635

Publication integrity record

Foam pad vacuum gripper, three zone face, per zone isolation, pump fed, pulsed 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-2026-000028635) never changes.

Identity and time

Publication numberOT-2026-000028635 · never reused
Internal UUID01a0ae72-e2f9-7bfe-be45-f0e1db8fa806 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028635
StatusPUBLIC

Content hashes

Canonical text67b044be29b16f5e58c073b501e070e2624a0a8fb815e606ef71de407708c9d6
Markdown3efd4cd1ea49129805437045f3a93983e9cde3a8285622b2c2395d48c438aef1
PDF
Publication page0ad8569fe265d2cfebbf9daab22062ed412c303d57e9807eea96422db69ea53a
Manifest03caae9671a44b87341e7953cf1435b5c44456ec987f22b9619364ac6ef3e5be

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
SignatureGQGj9nyVx6SNGZRmISlMtA/fG1+yeqp3vVqGVML19pm0pvRUk7/ntvQPZjTbCHLETABnS2ZjL84hxv1EuD+vCA==
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

2026-09-17T11:41:30.301177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028635
observed 0ad8569fe265d2cfebbf9daab22062ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:30.281705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028635/manifest.json
observed 03caae9671a44b87341e7953cf1435b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:30.260657ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028635/publication.md
observed 3efd4cd1ea49129805437045f3a93983...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:30.241408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028635/publication.txt
observed 67b044be29b16f5e58c073b501e070e2...
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.