OpenTechnical

OT-2026-000028024

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, sustained 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-2026-000028024) never changes.

Identity and time

Publication numberOT-2026-000028024 · never reused
Internal UUID01a0ae72-a51f-7e3b-b5b4-ae818f430111 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028024
StatusPUBLIC

Content hashes

Canonical textf2d3e3e8e8bc169fd9e1bf9e37adc4314de568ebd4e4845cd736c2da19c335de
Markdownb6fdd8b7db2001aa6ae07be8f79608649627011a3cf7e6a9f1e9d2c296670c08
PDF
Publication paged18c70bc9de622b166e4bee5cdea91a7d4a805beca8db9ffa4511e8ae03f7d59
Manifest09e74eb4fb5c40128c4662bad027232b77cd07a2e7bee10d8bf7134e665bcbed

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
SignatureiwYM210dl9ne3qzFbh/MnnE/s7izOXsEN3fR+FNTEJ1k3P9/eszQbtIlpV8e1r41Zz26pY1q1cWmsSRbjXt/BA==
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

2026-09-17T11:42:20.690219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028024
observed d18c70bc9de622b166e4bee5cdea91a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:20.673288ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028024/manifest.json
observed 09e74eb4fb5c40128c4662bad027232b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:20.655042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028024/publication.md
observed b6fdd8b7db2001aa6ae07be8f7960864...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:20.636336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028024/publication.txt
observed f2d3e3e8e8bc169fd9e1bf9e37adc431...
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.