OpenTechnical

OT-2026-000070622

Publication integrity record

Single bellows cup vacuum gripper, two stage ejector, vented 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-2026-000070622) never changes.

Identity and time

Publication numberOT-2026-000070622 · never reused
Internal UUID01a0ae91-8c2b-7dd3-a550-586bd629e01f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000070622
StatusPUBLIC

Content hashes

Canonical textd93ed7fc1389c78fd6f380885c6cba68f99514f7f463536c4fee807453a45d52
Markdown5a7f3213e2797f3be5b300e6893b0605775a5352ce2e390d063ce73e728db985
PDF
Publication paged86de9680ab4bf2887c6cde7827438377b906bf8bf09de2ecd9640e6372635b9
Manifest52d74f84c14daa63d6956920f57093ac157e01c59beb4df23434746ffa4fba2d

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
SignaturelZsUL1C35luzGjuHwrtW7QBW9bhjerI0oPXq6HczreqDrgpVGvqTfSSLk11VqUQanC82gGfZJ4jVB/scIUMwCg==
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

2026-09-17T10:25:17.224819ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070622
observed d86de9680ab4bf2887c6cde782743837...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:17.206524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070622/manifest.json
observed 52d74f84c14daa63d6956920f57093ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:17.185914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070622/publication.md
observed 5a7f3213e2797f3be5b300e6893b0605...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:17.166982ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000070622/publication.txt
observed d93ed7fc1389c78fd6f380885c6cba68...
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.