OpenTechnical

OT-2026-000031539

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, pulsed blow-off before set-down

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-2026-000031539) never changes.

Identity and time

Publication numberOT-2026-000031539 · never reused
Internal UUID01a0ae74-87ae-7010-9332-d6d0d3489bb4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031539
StatusPUBLIC

Content hashes

Canonical textd3c5ec128327f36394ffc129b834bd9993647e2bbad07ec5f97a3b969daefc07
Markdown8f970ae2f6db4ff92b12ad6af98544f2d43f92f0c373e4b8bc031f2df3baba7e
PDF
Publication page95d4073b4d6bacebdf5147b1716d2a1008393def7eb5003660a1ea6cd22f6f70
Manifest20ff5a308b1ac3d175881994f2fec0130085fec182a3bdeebe123b8a5a1ea98c

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
SignaturedtkLbO4Ur6nxmlnW3NPaBrc+Oe0XaXZihOQuO78vOjpWnd8bPPlbq9aWP+t8IXbJ+Amn86zt1Nt7BvSlOQArDQ==
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

2026-09-17T11:36:22.827762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031539
observed 95d4073b4d6bacebdf5147b1716d2a10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:22.810368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031539/manifest.json
observed 20ff5a308b1ac3d175881994f2fec013...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:22.789338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031539/publication.md
observed 8f970ae2f6db4ff92b12ad6af98544f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:22.770517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031539/publication.txt
observed d3c5ec128327f36394ffc129b834bd99...
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.