OpenTechnical

OT-2026-000104191

Publication integrity record

Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, pulsed blow-off after 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-2026-000104191) never changes.

Identity and time

Publication numberOT-2026-000104191 · never reused
Internal UUID01a0aea5-341f-7821-8291-ba79e880f24a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:17.519068Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104191
StatusPUBLIC

Content hashes

Canonical textabb6ce701a409d3dc062a443c8f7e5f600428a8733f77978a76c72853c05e7d3
Markdown12a2483b0ddd28c6603863a2bcb3ac3323660e0c491ea43879929c5b97bbed70
PDF
Publication page5e8e9dec376abecb4df68afb645bccfa59683e79cfdf0ecd2e32f0ff1ee9c5d1
Manifestd29e774d7fb1445810948bc232817f6874646c239969a8c136b3179dab3a45a4

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
SignaturewgRraLe5c7BttcgIFxJlqLAt31wBqaI25829aOzY5Dtihl6EXgFK9I+QSCFcnoZsUMuJy8Rpp6DKU5Ju+HE6Bg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:20:17.259948ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104191
observed 5e8e9dec376abecb4df68afb645bccfa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.242922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104191/manifest.json
observed d29e774d7fb1445810948bc232817f68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.226386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104191/publication.md
observed 12a2483b0ddd28c6603863a2bcb3ac33...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:17.210037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104191/publication.txt
observed abb6ce701a409d3dc062a443c8f7e5f6...
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.