OpenTechnical

OT-2026-000018937

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, manifold pressure sensor, 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-2026-000018937) never changes.

Identity and time

Publication numberOT-2026-000018937 · never reused
Internal UUID01a0ae6e-d522-7c3c-a2d7-a6bedb7222e7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018937
StatusPUBLIC

Content hashes

Canonical text812b2d64451b044c37ac3defe1fc860d744456251cb6bb8548b4c53996912583
Markdowna0a21d8a62fb6a4851561b876235e1df5f7b69c7fb632fbbbce7f25cb237cc9c
PDF
Publication page8165d807bb76d0afb62cae34430d9ee2d7441caa6ff0028a47dc9e7b7f2fa0c8
Manifest6b246b2f06852d668cd49f65068c8687de90f8637a0a0481eaf8f9087441ad93

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
SignatureXGOOE/efpZ56w/QirGALgavThWmy0gSZDdya01QB8V4msR/b8oXM2D+k91LC51uagkdhpXScRlAY7VxQ7M5lAw==
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

2026-09-17T11:59:36.129536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018937
observed 8165d807bb76d0afb62cae34430d9ee2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:36.112502ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018937/manifest.json
observed 6b246b2f06852d668cd49f65068c8687...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:36.096131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018937/publication.md
observed a0a21d8a62fb6a4851561b876235e1df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:36.079890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018937/publication.txt
observed 812b2d64451b044c37ac3defe1fc860d...
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.