OpenTechnical

OT-2026-000025638

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, plant vacuum fed, supply line 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-2026-000025638) never changes.

Identity and time

Publication numberOT-2026-000025638 · never reused
Internal UUID01a0ae71-9bc9-7329-a1bd-7e0a59664d1f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:56.183170Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025638
StatusPUBLIC

Content hashes

Canonical text07fb2ef30c6523bc6f31e3a5b558ff12a6efca3c850c42e2b38306032ad3c401
Markdown71de3a2df29e54dee79ff1cd0324910664475193b6649d523921d5f37dc4b067
PDF
Publication page54723c8b82fdd727566453a2852f056913750a7892d3fdcb7db48b61e166265a
Manifest7c0a5c999f34344d752911ab4bf83cf3186d5539248cd25cf29f45ad15a8b02d

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
SignatureKOjDrUsnz2f5uCtHmUnW5luWv+RzE8MOjUc2pM1hrnOs5IR/Frb7jKAt5BCiUppmo4epDnZneuA85zI/gAAhBw==
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

2026-09-17T11:46:50.183189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025638
observed 54723c8b82fdd727566453a2852f0569...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:50.163137ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025638/manifest.json
observed 7c0a5c999f34344d752911ab4bf83cf3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:50.141695ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025638/publication.md
observed 71de3a2df29e54dee79ff1cd03249106...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:46:50.123973ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025638/publication.txt
observed 07fb2ef30c6523bc6f31e3a5b558ff12...
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.