OpenTechnical

OT-2026-000081900

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, supply line 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-2026-000081900) never changes.

Identity and time

Publication numberOT-2026-000081900 · never reused
Internal UUID01a0ae97-0f76-747b-9ae7-cf0133573e71 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081900
StatusPUBLIC

Content hashes

Canonical textde67b95af7323fd5da52dca0c07117d7bc18e6b772396579f20330cb82f11280
Markdown684f92165ea30b1c7d7622fdf7bde88aab3127e8643ebfbd131fe23a59a7e9fc
PDF
Publication paged603fdb2a5457638b17535475ca7bcdbd1911e3257756f0a427572e45ccec356
Manifest7b9565a210cd3b7161e0fe35f5f301e9d4521ea849bbbd22b56eaf364b396da0

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
SignatureU/luzDriDuJWnBNriIuUYaaRCjoVSQChztlS+5V8ESRgu+/BtSospka4doYSWycoCncUp3REydo2YiYWPLpqDg==
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

2026-09-17T10:01:01.479188ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081900
observed d603fdb2a5457638b17535475ca7bcdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.460504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081900/manifest.json
observed 7b9565a210cd3b7161e0fe35f5f301e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.443745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081900/publication.md
observed 684f92165ea30b1c7d7622fdf7bde88a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.425482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081900/publication.txt
observed de67b95af7323fd5da52dca0c07117d7...
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.