OpenTechnical

OT-2026-000076119

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump 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-2026-000076119) never changes.

Identity and time

Publication numberOT-2026-000076119 · never reused
Internal UUID01a0ae94-6a6e-7c70-b833-8454f4c4e89e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076119
StatusPUBLIC

Content hashes

Canonical text7475a1a3ace719b8238da2cfe99b52051883ef8639292051dfa60c90d94669fe
Markdownbfec459e4e0c1cc1e83256cec1ad9d5e59df9a7115b4575752967dfff29f0629
PDF
Publication pagef805f8db1dafb632afcfedf1751ff9d635856fee049ccf56e3f2ead1d0b5e578
Manifest4137e6cf34055074e43be00fef95cb9f42401d83a4d4d6971bd47800d4c8ed56

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
SignatureyqufoPluHNRfIBhIoPUO2EwOyG+cDyYmbzbbpYbe0BWMAX/GVfVL2S/mgR/sZzlLMY645EW/z/kmNcjc2gpHAA==
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

2026-09-17T10:11:04.785318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076119
observed f805f8db1dafb632afcfedf1751ff9d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:04.767303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076119/manifest.json
observed 4137e6cf34055074e43be00fef95cb9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:04.749285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076119/publication.md
observed bfec459e4e0c1cc1e83256cec1ad9d5e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:04.466769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076119/publication.txt
observed 7475a1a3ace719b8238da2cfe99b5205...
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.