OpenTechnical

OT-2026-000042329

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off after 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-2026-000042329) never changes.

Identity and time

Publication numberOT-2026-000042329 · never reused
Internal UUID01a0ae7a-5d74-7349-8209-5fe10b6d9e09 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042329
StatusPUBLIC

Content hashes

Canonical textbc9a87ff49ac7455adb5a3fcfdca1cd2b3148533c099cea22a4cd7e8a5841727
Markdown33c88a38854d7b1625564b52e893ef9fe4889a7caefb36de2335fe9aa2b1c7be
PDF
Publication pagefbd9e9658f6bf4c7298eec300f79c8b7b861f9e1a9160a84d1d91ad157689a8e
Manifest550c742051f708e6da723b0b192be6a3f7cb7ca70b0a9231ea37ab938ac4bfd5

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
Signature6n2706XN6UpPbxAXldqNarkhXx7CYsIZcEXRS255EAZ29jbMsImh+kymMN6rePRB6R8MP0PKannwN8owiO+2Aw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:16:02.081332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042329
observed fbd9e9658f6bf4c7298eec300f79c8b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:02.063883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042329/manifest.json
observed 550c742051f708e6da723b0b192be6a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:02.046136ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042329/publication.md
observed 33c88a38854d7b1625564b52e893ef9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:02.029422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042329/publication.txt
observed bc9a87ff49ac7455adb5a3fcfdca1cd2...
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.