OpenTechnical

OT-2026-000083155

Publication integrity record

Two bellows cup vacuum gripper, two zone face, pump fed, 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-2026-000083155) never changes.

Identity and time

Publication numberOT-2026-000083155 · never reused
Internal UUID01a0ae97-c962-7ecd-9332-9dfb8bd7b807 · 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-2026-000083155
StatusPUBLIC

Content hashes

Canonical textfc9447c0785d6198ae9e5f6d051c0b6966cfc86760d943782191f66144108744
Markdownea29923d24ab6ac56348b02749594f25611c4b8d413b89191e924d8dae1e60e8
PDF
Publication paged5fc8f7662a730a11f34f951bdfec3f26a11e731b4cfd3223c93f98e882279fa
Manifest56b6537893765637c6c6aa7616d83a8a99d6bf8b6df59ca82680783219442449

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
SignatureiHRPW7SozgHlXGIBzjCnl8VHoIQgEa1KdhWhNPW+kJrs9sBQYnRn+owbfkwYsjsD+7CqFj/ooUCse58lAY3VAA==
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

2026-09-17T09:00:54.386872ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083155
observed d5fc8f7662a730a11f34f951bdfec3f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:00:54.364042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083155/manifest.json
observed 56b6537893765637c6c6aa7616d83a8a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:00:54.343648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083155/publication.md
observed ea29923d24ab6ac56348b02749594f25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:00:54.323715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083155/publication.txt
observed fc9447c0785d6198ae9e5f6d051c0b69...
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.