OpenTechnical

OT-2026-000031907

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, three stage ejector, 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-2026-000031907) never changes.

Identity and time

Publication numberOT-2026-000031907 · never reused
Internal UUID01a0ae74-bad2-7588-89cc-13636ffddad6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:20.739935Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031907
StatusPUBLIC

Content hashes

Canonical text18e40a54c58cf5f8a95856ba19fc52c6662440cf31ef381d6c83a57a1732424a
Markdown69ddf3033d667b78f715e0839aca7d921e1f2611df9b63a0bf0fa80c5399607f
PDF
Publication page5b6221744140cbfc39b7b0448f0549eeb694b86310e03b72ff922872ea36e5f7
Manifest5347760eb6869f5920a0903b5826a7adbfcb98ddd5ee8b5969e3676b6951e47e

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
SignaturetQcQQbloVdo1L69l7df0foKOAp17b2ma6lrNDc97JmvuTPDo4o/kDr37Go+z5mKTJr5Nj5S4CiwOslV+oFWjCw==
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

2026-09-17T11:35:10.729587ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031907
observed 5b6221744140cbfc39b7b0448f0549ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:10.713624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031907/manifest.json
observed 5347760eb6869f5920a0903b5826a7ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:10.695996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031907/publication.md
observed 69ddf3033d667b78f715e0839aca7d92...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:10.680429ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031907/publication.txt
observed 18e40a54c58cf5f8a95856ba19fc52c6...
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.