OpenTechnical

OT-2026-000086523

Publication integrity record

Four cup vacuum gripper, four 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-2026-000086523) never changes.

Identity and time

Publication numberOT-2026-000086523 · never reused
Internal UUID01a0ae9a-2c97-78f6-bbc4-bb36510af252 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:14.823225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086523
StatusPUBLIC

Content hashes

Canonical textb937256a6e66268b527f12e114243ba436a402f8cc25b27771e683bd48129d7a
Markdownb11575ce35ab39623001dac2ba099d6f92a41dd3e47286928713180147548113
PDF
Publication page04c7f5456d55a37812c5ac96d37864f326b2002282c1d8ef001cbd7fcffe3d63
Manifest228a8563eb621d1ede047c7b490fb94c3f0bc8931424cfd1f829dc17eecb3f93

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
Signature+yx0+uzy11nVnI5LBxH6NrF/7lEj//m+gTqoCxW4u6B2KrVCLxpbIeCF0nPze68to5lry1DjzKALnrZfw5zmCw==
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

2026-09-17T09:52:20.706208ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086523
observed 04c7f5456d55a37812c5ac96d37864f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:20.689388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086523/manifest.json
observed 228a8563eb621d1ede047c7b490fb94c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:20.671631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086523/publication.md
observed b11575ce35ab39623001dac2ba099d6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:52:20.653409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086523/publication.txt
observed b937256a6e66268b527f12e114243ba4...
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.