OpenTechnical

OT-2026-000033878

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, pulsed blow-off 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-2026-000033878) never changes.

Identity and time

Publication numberOT-2026-000033878 · never reused
Internal UUID01a0ae75-a391-7724-b6d8-721ab41abb25 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:20.325649Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033878
StatusPUBLIC

Content hashes

Canonical textff438819d107e453f32ffb3b0858313f39d10568cab01685e279035f4c730018
Markdownf9e5030267f64968475366a856be5106da3d652da34e20af72082c78c5dfdd3b
PDF
Publication page12ed61815ae65649d2c46ed577a6e537405aad5b58346f7a687472bf9c6efda2
Manifestb4000cead7cec99d75570be7b29e30c59f0ea710c2c6aab01e61acb820300624

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
SignatureUUD1+8U5WTXeG512KzRgHVedeo2cheyOa1CQhvchQcFS1prKQvNkNXx7LaoU1FPwUqgypH/+DTIL/xamUsKFAA==
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

2026-09-17T11:31:56.886547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033878
observed 12ed61815ae65649d2c46ed577a6e537...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:56.869186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033878/manifest.json
observed b4000cead7cec99d75570be7b29e30c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:56.847705ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033878/publication.md
observed f9e5030267f64968475366a856be5106...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:31:56.830038ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033878/publication.txt
observed ff438819d107e453f32ffb3b0858313f...
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.