OpenTechnical

OT-2026-000026690

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, sustained 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-2026-000026690) never changes.

Identity and time

Publication numberOT-2026-000026690 · never reused
Internal UUID01a0ae71-f4aa-7d9c-b82f-41401bf03ac4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:18.960773Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026690
StatusPUBLIC

Content hashes

Canonical text185999de1310e10b8c7567903a2f0171a867b3f6aea4d679e82f3488f094b1b4
Markdown97908a2a423faea4137d203e91db3045cd3a080082387a706d42890f7348081d
PDF
Publication page5cbbf57c18a000ce920133f7db0d4fbc8cff3955927e42743a9b5a6dcc87114f
Manifest68c0c5f75c2a34f9d75151fc5affad94504a300dd20be25f7da077c6efafaa2d

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
SignatureR3QqXWh7Z4FrOmoJdgekPg5ZFeADb5cNGVyOekh2ybcoIW8gn9vYbib2I8nRm/gg+IUlSOiy+qAtjt1kkpLgAw==
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

2026-09-17T11:45:46.716280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026690
observed 5cbbf57c18a000ce920133f7db0d4fbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.698162ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026690/manifest.json
observed 68c0c5f75c2a34f9d75151fc5affad94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.682189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026690/publication.md
observed 97908a2a423faea4137d203e91db3045...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:45:46.666033ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026690/publication.txt
observed 185999de1310e10b8c7567903a2f0171...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent