OpenTechnical

OT-2026-000015421

Publication integrity record

Three cup vacuum gripper, three outlet manifold, single stage ejector, supply line pressure sensor, 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-2026-000015421) never changes.

Identity and time

Publication numberOT-2026-000015421 · never reused
Internal UUID01a0ae6d-ef49-7067-9092-188dd2a233d5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015421
StatusPUBLIC

Content hashes

Canonical text408a96d34ff32398c3f50fd4c69afab5744c2d379157a03956acd557deb8d220
Markdowne2725c17127c67918638192b7ca494d1522518496e0634d5f1184f338c3b5138
PDF
Publication page0485b6940977bb15dc2711ce1d20ae87f854b8680bcb6b4fd1d99a090628b37b
Manifest2eac80c24252492759f0315f77ba0817250615589786476ff67c048135e83a23

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
Signature9yIsIJeO30AKBw13hpLBsriZCb2uml9PPoKHs+dCv74rfLum3I1zdqJa5poSMvBeY+CBlB7lrQRXyVNQaPgZBQ==
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

2026-09-17T12:06:09.240524ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015421
observed 0485b6940977bb15dc2711ce1d20ae87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:09.221622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015421/manifest.json
observed 2eac80c24252492759f0315f77ba0817...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:09.202176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015421/publication.md
observed e2725c17127c67918638192b7ca494d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:09.181165ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015421/publication.txt
observed 408a96d34ff32398c3f50fd4c69afab5...
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.