OpenTechnical

OT-2026-000091420

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, pressure sensor per zone, 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-2026-000091420) never changes.

Identity and time

Publication numberOT-2026-000091420 · never reused
Internal UUID01a0ae9c-f16d-7397-903f-321b3c9928d6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091420
StatusPUBLIC

Content hashes

Canonical text673a0a79690d06b4cd3009af9e1db91ba531c31f96331bc2493b6647ca0db6b9
Markdown915a6cfe97c9890d00c29b1630946a4f747417b7da77fc8a089c2d7e5fc67e78
PDF
Publication paged7cd4c4fc97b46739e9f79483a7b0a64177bccb1be5da87875f806b1027c6e09
Manifest0bbda27524a005fd71a6b899a322bef6430d78ba66d146c24e2346b1d5938cdf

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
SignaturegzPYLd8V6VX5qsqa6BV6/8SEqdPWXbb2Qt8ybDvquNujWSE0aoW8WTm01x1oacRWj1htsVdKdfHVuHXZ+SJFBg==
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

2026-09-17T09:43:39.401916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091420
observed d7cd4c4fc97b46739e9f79483a7b0a64...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:39.383594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091420/manifest.json
observed 0bbda27524a005fd71a6b899a322bef6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:39.363500ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091420/publication.md
observed 915a6cfe97c9890d00c29b1630946a4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:39.345043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091420/publication.txt
observed 673a0a79690d06b4cd3009af9e1db91b...
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.