OpenTechnical

OT-2026-000034228

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, 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-2026-000034228) never changes.

Identity and time

Publication numberOT-2026-000034228 · never reused
Internal UUID01a0ae75-df0d-749b-ba23-724c6231b751 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:35.550760Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000034228
StatusPUBLIC

Content hashes

Canonical textb86d0c4f915c7e53a88292deabe3c9597e7dc4410d030dda92b3c41c203af423
Markdown68b7fdd78f01fda326771f90321dfc70e8d3702a0527e211493906093449cbba
PDF
Publication page7df46dd8e03a79ee7b385d086a0bef4e741ccb104d5ecfaa49c65de77262d67c
Manifestc49903f5145bd8bda12067225172178d52ce8e31dea293962fb53012bc902ae5

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
SignaturepWJ3/rS6AfnbISiJNiFI50sE4LNI2uKzVbL63eSFRrWIdyo7lzO0HzvtUX82hNluEzLgPmWU2WJdWlUPbweUCA==
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

2026-09-17T11:30:46.799926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000034228
observed 7df46dd8e03a79ee7b385d086a0bef4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:46.783284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000034228/manifest.json
observed c49903f5145bd8bda12067225172178d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:46.765126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000034228/publication.md
observed 68b7fdd78f01fda326771f90321dfc70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:46.741450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000034228/publication.txt
observed b86d0c4f915c7e53a88292deabe3c959...
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.