OpenTechnical

OT-2026-000062990

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, plant vacuum 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-2026-000062990) never changes.

Identity and time

Publication numberOT-2026-000062990 · never reused
Internal UUID01a0ae8c-94a9-7cbe-9c28-c948490c5362 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:47:23.840289Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000062990
StatusPUBLIC

Content hashes

Canonical text6ee7eeb1ab29f1d6aeb93c1bbcca13d8a5a5948bb54425165f50d955d05f63c4
Markdown025cf59160fb0fb19e236ef3a7a81d71d089f3c0d5d11b7ccb100019d75a4237
PDF
Publication page7c883f18921dd2cc99f1abead6f059975f5c8e6d370ad1fe97a6c5727b46c4aa
Manifestc76334247364c80b8403fb8144af11707b85e03f9a82c7f7d1790d460abdb105

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
SignatureFIpNW1MM8h43NbVCwYg+MmRwC4uYNGDcPhSiAKxzXiAZZrcDiIBlh8oN/wZwh+mGT9SPvCPjcfhYQJ2NCtI9Cg==
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

2026-09-17T10:40:31.031507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062990
observed 7c883f18921dd2cc99f1abead6f05997...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:31.006395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062990/manifest.json
observed c76334247364c80b8403fb8144af1170...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:30.983988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062990/publication.md
observed 025cf59160fb0fb19e236ef3a7a81d71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:40:30.962703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062990/publication.txt
observed 6ee7eeb1ab29f1d6aeb93c1bbcca13d8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:38:43.776681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062990
observed 7c883f18921dd2cc99f1abead6f05997...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:38:43.756437ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062990/manifest.json
observed c76334247364c80b8403fb8144af1170...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:38:43.737084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062990/publication.md
observed 025cf59160fb0fb19e236ef3a7a81d71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:38:43.718805ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000062990/publication.txt
observed 6ee7eeb1ab29f1d6aeb93c1bbcca13d8...
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.