OpenTechnical

OT-2026-000090930

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, 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-2026-000090930) never changes.

Identity and time

Publication numberOT-2026-000090930 · never reused
Internal UUID01a0ae9c-c011-7577-9804-2306f39daf3e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090930
StatusPUBLIC

Content hashes

Canonical text3c4405e1047643eae0a747efce3f1abd64d0bd7b7eb8e105e90a36a0806f3b79
Markdown447426364538722aa6ca998ad44f3539380bd4eb8b2ba0fda59e12c05ac7e104
PDF
Publication page5bf5c612e4b63321136b17ed825525af053f014186c42b14970d2773fac433a2
Manifest5ac87d4716c5530a96b2f41ae5c0bbd7192c76fc97042a0825be99de5de55b76

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
SignatureE5VVA50xOhjeMpIx7TiSSAK5BvJ/+rmt/y9TvklFNBSD+FokSYjOYUc4SYBBMaPY4nD/Q/kmHhKykKxRiKnKDA==
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

2026-09-17T09:44:09.076007ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090930
observed 5bf5c612e4b63321136b17ed825525af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.057185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090930/manifest.json
observed 5ac87d4716c5530a96b2f41ae5c0bbd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.040463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090930/publication.md
observed 447426364538722aa6ca998ad44f3539...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.022696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090930/publication.txt
observed 3c4405e1047643eae0a747efce3f1abd...
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.