OpenTechnical

OT-2026-000080719

Publication integrity record

Two bellows cup vacuum gripper, two zone face, 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-2026-000080719) never changes.

Identity and time

Publication numberOT-2026-000080719 · never reused
Internal UUID01a0ae96-b973-793e-bff3-da54fbf23cfb · 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-2026-000080719
StatusPUBLIC

Content hashes

Canonical text333b5921038c7d630fac33123c300968f9ac56712ab348d631a494f5e95c30df
Markdowne8591407ec4b37f9259544829034c981220edd051017be01e1fe335bf110f403
PDF
Publication pagea4a2b3e56e2f129d370ae677b0421fd347f8039486be49215e2b47eb28391619
Manifest26b38b0b8b2d7c26219aa8647b793ad7647233b252edb3f521ec9da2c3bdef50

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
SignatureKGn9Y1AwZZzQXHwlZtxO4WIDstf7we8/zgcmUDP0SyRR70Sg+qPk1/2QUxqrtrRp+7l0++8bcoAgY13Nf8RWDw==
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

2026-09-17T10:01:45.281352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080719
observed a4a2b3e56e2f129d370ae677b0421fd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:45.262096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080719/manifest.json
observed 26b38b0b8b2d7c26219aa8647b793ad7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:45.243373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080719/publication.md
observed e8591407ec4b37f9259544829034c981...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:45.219435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000080719/publication.txt
observed 333b5921038c7d630fac33123c300968...
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.