OpenTechnical

OT-2026-000055573

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, 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-2026-000055573) never changes.

Identity and time

Publication numberOT-2026-000055573 · never reused
Internal UUID01a0ae86-a103-7ea0-b897-c03cd234a498 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:40:53.783868Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055573
StatusPUBLIC

Content hashes

Canonical text0435872b8ce07bdf0659415fd3cb4529c35b5469f874743e602c3377c54f6ac5
Markdown5ce59ac65bc2b08e575f7bff04f78427a074f21b3c1184fcaf31f7b53da06bab
PDF
Publication page16042b2f0358fb6a7b90cfb5e48d4f791c22154b7feead41114b4a4e983bb956
Manifestdf51473e8b62f8e039fb7fee024a066066ea7ecafb001d29d03423c7fd058c97

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
SignatureTE7lQXfQxbbHn4DuStJ2ILA8ZaVa+tvgSyhXPFlGN9yb52Mqz4LAbIVTGP22SHHkNqs67hRnrLoq5XMqVnckBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:52:46.431563ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055573
observed 16042b2f0358fb6a7b90cfb5e48d4f79...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:46.412162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055573/manifest.json
observed df51473e8b62f8e039fb7fee024a0660...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:46.393936ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055573/publication.md
observed 5ce59ac65bc2b08e575f7bff04f78427...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:52:46.360303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055573/publication.txt
observed 0435872b8ce07bdf0659415fd3cb4529...
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.