OpenTechnical

OT-2026-000091020

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, three stage ejector, pressure sensor per zone, sustained blow-off before set-down

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-2026-000091020) never changes.

Identity and time

Publication numberOT-2026-000091020 · never reused
Internal UUID01a0ae9c-c011-79ff-ba85-de08f995bb0b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091020
StatusPUBLIC

Content hashes

Canonical text23b89068f8b781ff979433e65171f437a73f93e7cd15c3e161d7af3c639525a5
Markdown3a94b067c8eace341b29160f397e1ef16378950225b0a866582524f2452a3963
PDF
Publication pagea939a6fb3da74ac2a3865880bdf8f7f46ea10d33bcc4a7d714dc1bfcc4b5a35f
Manifest4d359d35d50c40e6bb1f6ca59e4fadfc56d23d0daf9ff2fddec904674a761b75

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
SignatureHZ46LsLn2ABcgO8p5ATQWYoe+zs2Fgaq+nFm/GzaH7biiH7nuflBS3jRATuDlHegsAtnNllraH5SZ3JyzYr3Cw==
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

2026-09-17T09:44:15.607506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091020
observed a939a6fb3da74ac2a3865880bdf8f7f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:15.586743ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091020/manifest.json
observed 4d359d35d50c40e6bb1f6ca59e4fadfc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:15.567050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091020/publication.md
observed 3a94b067c8eace341b29160f397e1ef1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:15.547189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091020/publication.txt
observed 23b89068f8b781ff979433e65171f437...
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.