OpenTechnical

OT-2026-000043575

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, manifold 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-2026-000043575) never changes.

Identity and time

Publication numberOT-2026-000043575 · never reused
Internal UUID01a0ae7b-92cf-7713-9863-e3111a38e623 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043575
StatusPUBLIC

Content hashes

Canonical text3cdeedfb903a50e5796fdbc2a478a0c12d936f99cab590471224f62fbaeec041
Markdown7be61da17a5598f080cb427665e77645e0c0517e8128a4f7a0fd8356435e1bc0
PDF
Publication page9581b10cf7d281962c33dbcd840f0384fa85fd597557c095f2788e7e922be6c5
Manifest9560d240350bc908192eb764543e4dfaa0b0c98042da5df4864bb7dd60b0c5fe

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
SignaturepJTBRXlMhXZJGW603rLZmjFkpclN2pi/BoZDmYoAiEsajHnZdLWSThfCgwrSwI3s8McOXYbuMsXMr77kO+DIBQ==
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

2026-09-17T11:12:58.342597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043575
observed 9581b10cf7d281962c33dbcd840f0384...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.322404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043575/manifest.json
observed 9560d240350bc908192eb764543e4dfa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.301625ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043575/publication.md
observed 7be61da17a5598f080cb427665e77645...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:58.282500ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043575/publication.txt
observed 3cdeedfb903a50e5796fdbc2a478a0c1...
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.