OpenTechnical

OT-2026-000018556

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, supply line pressure sensor, 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-2026-000018556) never changes.

Identity and time

Publication numberOT-2026-000018556 · never reused
Internal UUID01a0ae6e-b48a-7dea-8f4f-cc86433722e3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018556
StatusPUBLIC

Content hashes

Canonical textd166d1d908c9bd7192af87c7fa4b5f2fe28cbe7d132d91bb18d2186f861386ca
Markdowne5354db575e48c5b7183f59a82851f22043906b23adcd1ea57b3437ac7570928
PDF
Publication page5f400abf303221a858594bf70357620a9ac525148c7751c88b3cd7c211ffaa2d
Manifest9dfb242625e0201e721c64e7202fd2ef08acbd25726203cebd439c1f61ea6c78

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
SignatureMRfWE7NvIVJZXT5LSCqlh00LRGPHWRGRw6aLavWwQZ+MZv+06HtkeEHlIIsuc5H5ZM905fD2KFBfiDPj9QG/Cg==
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

2026-09-17T12:01:20.217139ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018556
observed 5f400abf303221a858594bf70357620a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:20.198398ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018556/manifest.json
observed 9dfb242625e0201e721c64e7202fd2ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:20.179930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018556/publication.md
observed e5354db575e48c5b7183f59a82851f22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:20.162847ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018556/publication.txt
observed d166d1d908c9bd7192af87c7fa4b5f2f...
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.