OpenTechnical

OT-2026-000029555

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, 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-2026-000029555) never changes.

Identity and time

Publication numberOT-2026-000029555 · never reused
Internal UUID01a0ae73-5e22-7346-8ab9-7ec19552fc62 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029555
StatusPUBLIC

Content hashes

Canonical textb2183b13ea71d7feaa9e8b6dc21849e53eda57faf2fef932619937dd92b6df5b
Markdownbec1e64cb021f56c20be98456b40ba12265ae82d410bcc0ddaf87f3b6738edd7
PDF
Publication page22c12f1b5330863c087c9031234dee79d17c619c0c20f8dff447294c05688d9d
Manifest8f288ab8777bef76fb551ae4f8b8520f92ebbbf8b2ce645e7f1efd839b406d06

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
Signature5LtiLYmJYtYr+bI3QAMf2dfM6y9r/JRC+84UlV1uJegp5wD9FzRzDe0d48BB+g9kSU7LpqEQiTQPscGBDRC0DA==
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

2026-09-17T11:39:12.965350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029555
observed 22c12f1b5330863c087c9031234dee79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.948009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029555/manifest.json
observed 8f288ab8777bef76fb551ae4f8b8520f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.932053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029555/publication.md
observed bec1e64cb021f56c20be98456b40ba12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:12.914259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029555/publication.txt
observed b2183b13ea71d7feaa9e8b6dc21849e5...
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.