OpenTechnical

OT-2026-000048595

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000048595) never changes.

Identity and time

Publication numberOT-2026-000048595 · never reused
Internal UUID01a0ae80-4de8-76cb-8946-35c40440bf57 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048595
StatusPUBLIC

Content hashes

Canonical text8ed1733042ee7fdf61d5431c92a3d33267ed8f38be2e99e9c69b53a1c7aaf5ee
Markdown44e6ae382fce82724b1a7d430a09b0288d8be074637c73f2cb5341e443bc2d09
PDF
Publication pagea6b03d0b709bb26f6dbae78439e09ef5a393e3356f3b08fa7d03f1c959740775
Manifest68772cc2deae0034322ad98d24cdb36b7839c6bbbb047a16cd26e39c8135e0ab

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
SignatureNrYMMoRwctf3T31RxpQXH+cN9ryyBZdIYKqKUr/ZU1D7SEDx9m2ivlN0MtRG7vRonjy13+KC1e0zFYe6+7UnBA==
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

2026-09-17T11:05:24.374617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048595
observed a6b03d0b709bb26f6dbae78439e09ef5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:24.356742ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048595/manifest.json
observed 68772cc2deae0034322ad98d24cdb36b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:24.339332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048595/publication.md
observed 44e6ae382fce82724b1a7d430a09b028...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:24.320827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048595/publication.txt
observed 8ed1733042ee7fdf61d5431c92a3d332...
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.