OpenTechnical

OT-2026-000081074

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, 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-2026-000081074) never changes.

Identity and time

Publication numberOT-2026-000081074 · never reused
Internal UUID01a0ae96-b976-733d-b46a-47d361ab1a09 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081074
StatusPUBLIC

Content hashes

Canonical text43e95d8579464aee1819e4dbb5d668c8824035d2f0790bd0667bae46fe84012d
Markdownc733b0006c7318094be0deba8ab55d7dfeea07e9bb63a28730653b6a6430848d
PDF
Publication page8ea9886fe3686f4df06bd89eb7b5866da1d0372a1e0d622dd7553b31be6da658
Manifest1b9b383e4c05b44d2e80285541d5ee8e86c0d8e316b196c75dbe5a0a5eb69604

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
Signatures9zqQQgUZZkyQ77L7kmRG+YP3G+slwNpYwT8Ta/mjjxtHlyOaSqW14QF/w1qHaKKkqwpe/ho5oPq+86yfQD9Cw==
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

2026-09-17T10:02:22.378620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081074
observed 8ea9886fe3686f4df06bd89eb7b5866d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.361597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081074/manifest.json
observed 1b9b383e4c05b44d2e80285541d5ee8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.345784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081074/publication.md
observed c733b0006c7318094be0deba8ab55d7d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:22.327790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081074/publication.txt
observed 43e95d8579464aee1819e4dbb5d668c8...
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.