OpenTechnical

OT-2026-000048587

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000048587) never changes.

Identity and time

Publication numberOT-2026-000048587 · never reused
Internal UUID01a0ae80-4de7-7bb4-81fd-b055602ee529 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048587
StatusPUBLIC

Content hashes

Canonical textbce38c6dbb50b3c9a20225e7fe854147c8490016878ae502e175784a51196616
Markdown11f758c385b9ccf13aa01c893f4b50d60d205cb799b77b3b8adc51f66978b4cc
PDF
Publication page50eaabd97e4d8ab3f3a24c8b5942b549d69a245535d729cc45f80112daebbaa4
Manifestec7560084c8292b3ce3921b418abb76536904bef581b7343f5c5f3cfef7ea5e9

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
SignatureNNwN5H72ntQ7F/rfi09xB+4mw9rYFO+3eqf3pQrHtibnCqiRbClAT6kgz3ze8f2dumdFia/SEyxkGNhm3RSDBw==
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

2026-09-17T11:05:23.741523ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048587
observed 50eaabd97e4d8ab3f3a24c8b5942b549...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:23.723674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048587/manifest.json
observed ec7560084c8292b3ce3921b418abb765...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:23.703956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048587/publication.md
observed 11f758c385b9ccf13aa01c893f4b50d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:23.684511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048587/publication.txt
observed bce38c6dbb50b3c9a20225e7fe854147...
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.