OpenTechnical

OT-2026-000078225

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000078225) never changes.

Identity and time

Publication numberOT-2026-000078225 · never reused
Internal UUID01a0ae95-7c26-7381-851e-44e9d3cbd673 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078225
StatusPUBLIC

Content hashes

Canonical text256ce7206c429ee94998b9514bbedaf4e0344d36d1ca236511be0c71d715e697
Markdown551162413b0d5b5ab8f1e0d8363cf6ed35815e4a853cb87e23b3b041e2ca4b45
PDF
Publication page4d8ee5fc93d63f9cbedf3074f2d3dfed248d324ecbfc50725a5ffb64c1e8cdce
Manifest937059b83a807263e33f3102d03f61eacdafcee668337b5d8f4c4640a76042e6

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
SignatureaVn0iGjEyp+oAQhGhJ3PNbhONcvhIWSySCv7bXx02fFfLde9WrvLAK4ivksDAnd44AZoSox0RLUq++m3B62bDQ==
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

2026-09-17T10:06:10.433050ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078225
observed 4d8ee5fc93d63f9cbedf3074f2d3dfed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:10.414065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078225/manifest.json
observed 937059b83a807263e33f3102d03f61ea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:10.395860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078225/publication.md
observed 551162413b0d5b5ab8f1e0d8363cf6ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:10.377796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078225/publication.txt
observed 256ce7206c429ee94998b9514bbedaf4...
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.