OpenTechnical

OT-2026-000030828

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, three stage ejector, 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-2026-000030828) never changes.

Identity and time

Publication numberOT-2026-000030828 · never reused
Internal UUID01a0ae74-3fb5-758d-837b-f0eb6a5333aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:49.275361Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030828
StatusPUBLIC

Content hashes

Canonical text271b321220abc4d5bd9ce8659592426d15b562db0e1a45ec826b2d0acb71ff38
Markdownc12216118615e45229fb2dd9e9f348f9ad0a5b7dd513838b32acc58e896737ce
PDF
Publication page4b99e2c90d02ce63257fc8994f4642a7dc479c2c38924a236047ad9f9e0f4039
Manifestb3d0840610c7cc2453bda6baac00196cd483aab487d26a4ac08e2fe42373711c

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
SignaturevYT2wfQMhbBl0YCu3cqY6kULqdaJ3cc5BkNc9lc9Fsd2FovwwUA1H4TzR0iYtp866P6Z/F40kCF6sMLkAx3YBA==
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

2026-09-17T11:36:48.094876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030828
observed 4b99e2c90d02ce63257fc8994f4642a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:48.076506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030828/manifest.json
observed b3d0840610c7cc2453bda6baac00196c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:48.059489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030828/publication.md
observed c12216118615e45229fb2dd9e9f348f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:48.040628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030828/publication.txt
observed 271b321220abc4d5bd9ce8659592426d...
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.