OpenTechnical

OT-2026-000022155

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, two stage ejector, pulsed blow-off before 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-2026-000022155) never changes.

Identity and time

Publication numberOT-2026-000022155 · never reused
Internal UUID01a0ae6f-f4fb-725f-8f81-8cdbce972121 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022155
StatusPUBLIC

Content hashes

Canonical text2459ef6be09d2a5d27adca982acf35ee3cedb26e87456d50a583a3af17e923ae
Markdown08e0983d6eb542216c0208dc90ac76e3eba2bde4b962fcf05d852a46463a1bf9
PDF
Publication page8bd0b33338b0adcc0e3e862577b68cca76a962d0722fba0c4197c2bbdde95682
Manifest9c6728ee2f95adc473579f2aa4b098e04b24867432efced1fe69ca93bfab2bb6

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
SignaturemTSvNcUrTMqK9tc+N6WkEs2njiE88EKa0E4q6LP5e0bG8gPtotihKOKb6oYISNZ2ui+3+uBPpL+MWI0DV3srCQ==
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

2026-09-17T11:52:50.030260ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022155
observed 8bd0b33338b0adcc0e3e862577b68cca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:50.011423ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022155/manifest.json
observed 9c6728ee2f95adc473579f2aa4b098e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:49.993659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022155/publication.md
observed 08e0983d6eb542216c0208dc90ac76e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:49.975007ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022155/publication.txt
observed 2459ef6be09d2a5d27adca982acf35ee...
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.