OpenTechnical

OT-2026-000003529

Publication integrity record

Porous face vacuum gripper, per zone isolation, plant vacuum fed, pressure verified

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-2026-000003529) never changes.

Identity and time

Publication numberOT-2026-000003529 · never reused
Internal UUID01a0a90a-4a05-7e38-b94a-015692145237 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:06:58.951580Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003529
StatusPUBLIC

Content hashes

Canonical text90dfbe1be5bb3e2023e85991ff7d3ee2326ec5ce8e74190aa7015770a7d831b8
Markdownf96bae613dc2bedd17b1e0c183623fcb1769695d902d4ebd03414f2711d4fe01
PDF
Publication pagef502c085a5e7a3f278e899be1cdf0296af387dc4727953a36b8206988ff7f541
Manifest5b6cffe428de49562307c7f4b3d455ff9e5e4e996575fc05c337d6f28af6fac0

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
SignaturenwlpGx36ps3NI1ay2YOlBCilMIZbvnpot+xF+ovv9Begh7Rs5aL1nrvB7TrfogPcql0qw5MOt+EmaIdhAzieAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:07:02Z
batch OT-TS-2026-W38-008 · RFC 3161 token · inclusion proof
root e9da7eb1c397f1749e5915c5a39dbbcf...

Independent retrieval

2026-09-16T08:50:34.915459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003529
observed f502c085a5e7a3f278e899be1cdf0296...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:34.899983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003529/manifest.json
observed 5b6cffe428de49562307c7f4b3d455ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:34.886316ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003529/publication.md
observed f96bae613dc2bedd17b1e0c183623fcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:34.746989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003529/publication.txt
observed 90dfbe1be5bb3e2023e85991ff7d3ee2...
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.