OpenTechnical

OT-2026-000061398

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, vented after 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-2026-000061398) never changes.

Identity and time

Publication numberOT-2026-000061398 · never reused
Internal UUID01a0ae8b-7b42-776a-84ec-a9b980b52a8a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:46:11.808334Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000061398
StatusPUBLIC

Content hashes

Canonical textbee150583bc7179952b648a9066480359e13276411419747704c872e1fcf8458
Markdownaedcc63c7038a4f78ee5788389e957690078ae83ce6dcb0e75dd18e4648bfad7
PDF
Publication page05c72cbadaa92a2098a4031f0071421ce751b68d31a95e6ffe6ac146338079b8
Manifest48a1b863c198e641b373a8b4005723b6aa1c09ed327ae4d8b12e24afaa16bf9a

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
Signature+7iviT8AEQ1Asqdq0QasshD6QUqlsViTnl4Uxhcmggf6WkZ4Ghgispju5KzuYQAEd2aKrBIVprjqD6cI5PVFBg==
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...

Independent retrieval

2026-09-17T10:41:15.638529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061398
observed 05c72cbadaa92a2098a4031f0071421c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:15.619227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061398/manifest.json
observed 48a1b863c198e641b373a8b4005723b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:15.600849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061398/publication.md
observed aedcc63c7038a4f78ee5788389e95769...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:41:15.581355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000061398/publication.txt
observed bee150583bc7179952b648a906648035...
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.