OpenTechnical

OT-2026-000086255

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, 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-2026-000086255) never changes.

Identity and time

Publication numberOT-2026-000086255 · never reused
Internal UUID01a0ae99-e82c-772f-91d2-0575204c1b05 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:57.178584Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086255
StatusPUBLIC

Content hashes

Canonical text38faa82d3e6f0df91b0263f2d619514f452bfccda8b67d948b042b93d2a209e6
Markdownbb4e8a2155c51260ce4921096160d1e51c52f4560fc1cf85e9ffac1b487d2b00
PDF
Publication page6ccca6214a3192b6e5ee363ee60b7813cc6b8d270704102ac4d9423d2072c5bd
Manifest8333f32aee0fa2e0c858d089a22e5b727d963200f1bfff5548534db7e480cf9a

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
Signaturel9HsSMv6vj79kdoDHKz/Owut1o7XqOwaRkdjbgxNbTed1SjWgzxka1vh5HP4JCXzK3+f/Zn3jtouGCrOCkTkAw==
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

2026-09-17T09:53:56.892369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086255
observed 6ccca6214a3192b6e5ee363ee60b7813...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:56.874530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086255/manifest.json
observed 8333f32aee0fa2e0c858d089a22e5b72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:56.853873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086255/publication.md
observed bb4e8a2155c51260ce4921096160d1e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:56.834279ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086255/publication.txt
observed 38faa82d3e6f0df91b0263f2d619514f...
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.