OpenTechnical

OT-2026-000013004

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, pulsed blow-off before set-down

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-2026-000013004) never changes.

Identity and time

Publication numberOT-2026-000013004 · never reused
Internal UUID01a0ae6d-5564-766b-b4f8-2f2bd8908b9e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013004
StatusPUBLIC

Content hashes

Canonical text9f8c97d14d1381d2b3945ec8da23a9b5c9ce358ca83d96299cb9b3fbe205c688
Markdown2c9ea7aac9f634d66c19204cc79f0d015d36b405008cda96c03a3a313612f4b2
PDF
Publication page8fc235ea14032de44abc2847ed3b50aa2959dbca78b2d99afbb3ffc569599c3b
Manifest1d97bab127396bac915361069248fd29a22ea64a032caae00d4425a1cf13a149

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
SignaturexelaP2c23Xqjx470JJX+xtFPCdHsUW9svG+jRQESaWgt7AkOcOvyp3wlvi+DyKw+SN6hZcR3iqpxEWGjDM28AA==
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

2026-09-17T12:10:49.481444ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013004
observed 8fc235ea14032de44abc2847ed3b50aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:49.459914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013004/manifest.json
observed 1d97bab127396bac915361069248fd29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:49.440087ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013004/publication.md
observed 2c9ea7aac9f634d66c19204cc79f0d01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:49.420538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013004/publication.txt
observed 9f8c97d14d1381d2b3945ec8da23a9b5...
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.