OpenTechnical

OT-2026-000090628

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, 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-2026-000090628) never changes.

Identity and time

Publication numberOT-2026-000090628 · never reused
Internal UUID01a0ae9c-7f30-7fd9-9cf6-1aa8519fb46a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090628
StatusPUBLIC

Content hashes

Canonical text50f1491ddc871b2fa15a848c6d7107d5d42b3c1b6fffa5d8e9d44e534ce0ea2d
Markdown926286defcd09844366e328ef40d11ffd4d3f1d9ed468f521354b8c234bf0b8d
PDF
Publication page21fae60cbe172f1fa89cbf2f718c699b678f1f83fe4651c08875ec2146a761d6
Manifest34320ce159c111047b0c0bd48f077ae9850cf8f02ed66719a31e9a45d25de1fb

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
SignaturelyOVptVNmVIy0ETtytAbUCJazZcgz9QQcV/aoQZQjD9qtWg2Nyl4GrLfqBjGFYFvQvFrQ0vCPaYv7fWfQMcKDg==
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

2026-09-17T09:44:21.875909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090628
observed 21fae60cbe172f1fa89cbf2f718c699b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:21.858382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090628/manifest.json
observed 34320ce159c111047b0c0bd48f077ae9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:21.841008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090628/publication.md
observed 926286defcd09844366e328ef40d11ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:21.824008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090628/publication.txt
observed 50f1491ddc871b2fa15a848c6d7107d5...
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.