OpenTechnical

OT-2026-000081149

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, 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-2026-000081149) never changes.

Identity and time

Publication numberOT-2026-000081149 · never reused
Internal UUID01a0ae96-b977-75b4-9378-c40959e55311 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081149
StatusPUBLIC

Content hashes

Canonical text3686c9c2370820e1a04f587649562809ce43dc17252d16fe21ba3e67717f2832
Markdown9029e32bb58690a541d8d2fae4fcc4578cf56246ca25744832f5e1516b36df32
PDF
Publication page1bd2a918b7b07a8c1eef1fcdc0a46919e32e787a043773491c1076e1b9eaf2b5
Manifest43cfb781d69ee5f87c5a721b0a50b61dc4d0402abe320d6a755be76e307025e4

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
SignatureapSHY/+jSDnrjy7MCbvXvQIJEzPFr61g/ENEFlCBE4dGNG9Y18MI18KI/4/oZUDAc6L9bSFR0GMnywDGxPWFBg==
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

2026-09-17T10:02:32.378661ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081149
observed 1bd2a918b7b07a8c1eef1fcdc0a46919...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.360787ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081149/manifest.json
observed 43cfb781d69ee5f87c5a721b0a50b61d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.342972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081149/publication.md
observed 9029e32bb58690a541d8d2fae4fcc457...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:32.325791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081149/publication.txt
observed 3686c9c2370820e1a04f587649562809...
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.