OpenTechnical

OT-2026-000029459

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, plant vacuum 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-2026-000029459) never changes.

Identity and time

Publication numberOT-2026-000029459 · never reused
Internal UUID01a0ae73-5e21-77d7-8e4e-065530ecd721 · 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-2026-000029459
StatusPUBLIC

Content hashes

Canonical text4212dfbacb8b954b40e9d814aacba2332e676f5646064dffcd2a497d0428ee0f
Markdown7a18f54ddeebc73c1d252c160671e72d929d1104ebaf4980db818beda2ca7198
PDF
Publication paged0555ac91e56ddc681b8d2cbdb5ebfafdc7b70cc50f554d82b0c667044c834f8
Manifest21e469b56732231873f5dc351142236e1d90187b8ac96f74e799dfdc54f81ef6

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
Signature9BHZBoU3aqqOQqnP+GPq9lNkiKFaHhWY+C3xj4NtAe6pJl6raT//JL3lNdy1N9mASEIxBKOjrRJDMC0LtlCHCw==
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

2026-09-17T11:39:04.825173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029459
observed d0555ac91e56ddc681b8d2cbdb5ebfaf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:04.809798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029459/manifest.json
observed 21e469b56732231873f5dc351142236e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:04.792630ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029459/publication.md
observed 7a18f54ddeebc73c1d252c160671e72d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:04.773449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029459/publication.txt
observed 4212dfbacb8b954b40e9d814aacba233...
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.