OpenTechnical

OT-2026-000052285

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, vented 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-2026-000052285) never changes.

Identity and time

Publication numberOT-2026-000052285 · never reused
Internal UUID01a0ae83-e791-71f9-a53d-e17ebfb4a47b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:55.233643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000052285
StatusPUBLIC

Content hashes

Canonical textf9f68929051a47ebb2eeadc29d0e875f9995706b75d48a747b33e8339310ec19
Markdown77d4c396c36e1895af9011cbb0b3419d0be9e0c7a6f0690f43e1ed9b28528b80
PDF
Publication page0bfabe810cc50b81ad14cfb655370eb57260a4001e2ce99133f416e12232cf74
Manifestf293bf0da089fca34b676bc491780713038942c41ac775c2530b579b266d6b39

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
Signature+uc3RQeXMgLp4XmDVmoh52WmTV1i03+20hfYoTPnmtpeS7j9/tQdadg+deLhn+J+bLn9IYEwm1D2GLxdhPFiBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:57:52.630062ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052285
observed 0bfabe810cc50b81ad14cfb655370eb5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:52.613243ZHTTP 502 · ERROR
https://opentechnical.org/p/OT-2026-000052285/manifest.json
observed ...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:52.595143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052285/publication.md
observed 77d4c396c36e1895af9011cbb0b3419d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:57:52.577140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000052285/publication.txt
observed f9f68929051a47ebb2eeadc29d0e875f...
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.