OpenTechnical

OT-2026-000083450

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, supply line pressure sensor, vented 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-2026-000083450) never changes.

Identity and time

Publication numberOT-2026-000083450 · never reused
Internal UUID01a0ae97-c965-76e0-8ae4-2b3d995b15a1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083450
StatusPUBLIC

Content hashes

Canonical textaa9ec478c56856ddd0ca14613505d6b5072dd4ab04a549002a994665980ffe6a
Markdown9d1f6963e3d2c3d4c732090cf9e8e1afdc2c5787abc69a3e78ccd71a63f4cdc9
PDF
Publication page72fb0313484f2d82811535ffdd4bbe1a275a0a8844280de5f06408d9027276bb
Manifest96018bad548884f68a504c325a4949354fc2acfe9ce1d625dec61d9a1f00b45e

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
SignatureQ1L7pA46PqymMR7urcy/m1zw9JGUYV17GGu4zUQJv4PuAEpWPixLaplMon8MwjAopdIM7hbkLKZ8SHZrAFviBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:57:52.189485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083450
observed 72fb0313484f2d82811535ffdd4bbe1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:52.174453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083450/manifest.json
observed 96018bad548884f68a504c325a494935...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:52.157011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083450/publication.md
observed 9d1f6963e3d2c3d4c732090cf9e8e1af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:52.140124ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083450/publication.txt
observed aa9ec478c56856ddd0ca14613505d6b5...
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.