OpenTechnical

OT-2026-000031424

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, sustained 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-2026-000031424) never changes.

Identity and time

Publication numberOT-2026-000031424 · never reused
Internal UUID01a0ae74-87ad-7bed-b30f-d64d24c39607 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031424
StatusPUBLIC

Content hashes

Canonical text6650d9ed815107d9d0263084f8a8d53c716a7db2499296e6c394067b9185ebf5
Markdown442f5a7ed484aa30cf67846c7b3ff19ecea8fe45343ca32c5a65e3d343513c9e
PDF
Publication page6414cbe681eefa59f6231d60500e56f854a79002b0c1854726124140aa96a7c0
Manifest709f994ee10f4af362af45645b804c581885ee0de19bcac222e1e87f11c98a7b

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
SignatureYcSHNuwNz2UxpdZ+idDVf3iYaubocjeGL5uq2o07w6HqMo8Ey/VZ4QtDlwBdeC0SR3GpxTqHIk2StVPAQKsUCA==
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

2026-09-17T11:36:08.564757ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031424
observed 6414cbe681eefa59f6231d60500e56f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:08.546468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031424/manifest.json
observed 709f994ee10f4af362af45645b804c58...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:08.528439ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031424/publication.md
observed 442f5a7ed484aa30cf67846c7b3ff19e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:08.512350ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031424/publication.txt
observed 6650d9ed815107d9d0263084f8a8d53c...
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.