OpenTechnical

OT-2026-000090098

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, plant vacuum fed, 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-2026-000090098) never changes.

Identity and time

Publication numberOT-2026-000090098 · never reused
Internal UUID01a0ae9c-428e-72e7-ba79-e48e86fd6283 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090098
StatusPUBLIC

Content hashes

Canonical text7a2c54037aa52d115c872f409b1fe30e6593817c7932177414ea2c43a0a60a58
Markdownff04cc96be55ee4a9de6870040a3b00b6d52346cc7ca5cf962ef38fa1f9d4a17
PDF
Publication page206c562e1bd6e62c6eef4004fa22c8a8dbb7161e28b2dc8429afe54d38d56efa
Manifest21d7e0ef8c9d527c3533d701880b33a17cbdcb7afd437f55fe04417659f39b3f

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
SignatureDvL76aKd5GXQZIu0x59Xw8iwnJDP0/ugW3EO/z3KwZIr5p+yI0jFuaRo8estlkZi/W1rWU/r3Lfft87bvJ9wCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:45:31.270763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090098
observed 206c562e1bd6e62c6eef4004fa22c8a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:31.251348ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090098/manifest.json
observed 21d7e0ef8c9d527c3533d701880b33a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:31.233654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090098/publication.md
observed ff04cc96be55ee4a9de6870040a3b00b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:31.214796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090098/publication.txt
observed 7a2c54037aa52d115c872f409b1fe30e...
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.