OpenTechnical

OT-2026-000050702

Publication integrity record

Foam pad vacuum gripper, plant vacuum fed, vented 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-2026-000050702) never changes.

Identity and time

Publication numberOT-2026-000050702 · never reused
Internal UUID01a0ae82-c7b0-7162-bd72-440cdd1435a3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:41.548889Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050702
StatusPUBLIC

Content hashes

Canonical text048a50867ad8b186250510314f2489a286ad798ab2cc903386e8849c3c46679b
Markdownbe70e65677a0f28a5895ddca63e7fa4e00bc692a9f8ae193311f9a3562f38844
PDF
Publication page07a4bcb2254134acff1b64f325f5672c288d5a98dc08c18d25691ebabb0d4fbc
Manifest1b8a4eb2836e0ccb2a2f34afd5bae5621f0de2cb6551283eb982bbda67398daf

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
SignatureljR52A7oYjsVIZb42DH+xWyifxP/EGNRhbwiyijEAVB5+0cxyPtUJznJ+79jtCG0v3brBg5fI98ZAdXx9r+IAw==
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

2026-09-17T10:59:25.036184ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050702
observed 07a4bcb2254134acff1b64f325f5672c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:25.019922ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050702/manifest.json
observed 1b8a4eb2836e0ccb2a2f34afd5bae562...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:25.002178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050702/publication.md
observed be70e65677a0f28a5895ddca63e7fa4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:24.986369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050702/publication.txt
observed 048a50867ad8b186250510314f2489a2...
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.