OpenTechnical

OT-2026-000028575

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, pulsed blow-off before set-down

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-2026-000028575) never changes.

Identity and time

Publication numberOT-2026-000028575 · never reused
Internal UUID01a0ae72-e2f8-719a-8f13-f6f729f02450 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028575
StatusPUBLIC

Content hashes

Canonical text1782f40887ac03e2232a45af9ed989e0d04db69591c1bad357f10eab316c0146
Markdown601490442d5b8628a8c0b86c7b599ff66dd01adf683dfde2e551fd7d1ae3c44f
PDF
Publication pagea8befc9489f4398ac4920d0329b025eab169f0018f55ae9be1b1f1039811a92d
Manifest674705aa909c5b42f8edb4252788b2e542979a71cfb261b5f1cf80dd83850707

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
SignatureGEOuSXrrQvaLu3qW/56c2H45Rj8W76y5LkqlzLH8pEUoVN50TCETPK+ccKM6J4p+ucrfC0AiMWI0SkYMvMl/Dw==
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

2026-09-17T11:40:51.881413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028575
observed a8befc9489f4398ac4920d0329b025ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:51.864037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028575/manifest.json
observed 674705aa909c5b42f8edb4252788b2e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:51.841004ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028575/publication.md
observed 601490442d5b8628a8c0b86c7b599ff6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:51.822697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028575/publication.txt
observed 1782f40887ac03e2232a45af9ed989e0...
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.