OpenTechnical

OT-2026-000091126

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000091126) never changes.

Identity and time

Publication numberOT-2026-000091126 · never reused
Internal UUID01a0ae9c-f16b-7ee1-a795-adeb8ad62daf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091126
StatusPUBLIC

Content hashes

Canonical text2234669267b4b3b9d6e56d3f58edceb624310c19b9ae776eb0a5f4742263b6b9
Markdown9508f190717d5d33d792f06c6265402a2832458277d611fe2131093a86c3a388
PDF
Publication page18e9cbed8b5bc5f33904dd07281f89b992745b78102c0a457f6981bcb3da6818
Manifestd4cd06147ca763b18d17a30eaaf01116a9eadcd736231869e7ca7c1fb2569ef0

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
SignaturePJuFkOIAm8jjX2HXvJEJHTfRlDkOjE8pJ4gyp9hr4pZ8eztiEQ1/I/SeD69H1GJzrkx5A3XCDUqF1U20M3MXDQ==
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

2026-09-17T09:43:16.870775ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091126
observed 18e9cbed8b5bc5f33904dd07281f89b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.855233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091126/manifest.json
observed d4cd06147ca763b18d17a30eaaf01116...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.837857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091126/publication.md
observed 9508f190717d5d33d792f06c6265402a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:16.820122ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091126/publication.txt
observed 2234669267b4b3b9d6e56d3f58edceb6...
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.