OpenTechnical

OT-2026-000028119

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, 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-2026-000028119) never changes.

Identity and time

Publication numberOT-2026-000028119 · never reused
Internal UUID01a0ae72-a520-72b3-af8f-8a66498fb69d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028119
StatusPUBLIC

Content hashes

Canonical texta3994efec9d2871a6d50d521162d8fcdac0d5d239a7e028acf20fb9c25e8ce43
Markdown655bd93c853b8b51211cb99dd0c9cbe39bca13e85ff8a356a39c40bf39139338
PDF
Publication pagef28b259f2361c1e05db918ffb71a8947a978d56a0ec3a6f51c9f54ef695df0cb
Manifestebcb5d98b010cd1b385445e1364c506c1f1cda929289314f2216cee732c1c5a3

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
Signaturei6uTCuPq+hARwQlhCO6CQ3nFFgZ8r/pROkpGDlzLLhnZtaEHj4VoJR1pXV3EHg9XrGIS4q5rruLvwePGqQjrAw==
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

2026-09-17T11:42:28.209427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028119
observed f28b259f2361c1e05db918ffb71a8947...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.193602ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028119/manifest.json
observed ebcb5d98b010cd1b385445e1364c506c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.173911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028119/publication.md
observed 655bd93c853b8b51211cb99dd0c9cbe3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:28.158142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028119/publication.txt
observed a3994efec9d2871a6d50d521162d8fcd...
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.