OpenTechnical

OT-2026-000021775

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, 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-2026-000021775) never changes.

Identity and time

Publication numberOT-2026-000021775 · never reused
Internal UUID01a0ae6f-bb5a-79d0-9ca8-35c1dde36a89 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021775
StatusPUBLIC

Content hashes

Canonical text6e663654dadfb4e60812c4c83d36338a7daa4d6436106a3827c9c0e059bf1b83
Markdown356dd5548368dd9eb501921472144c51da303df3d5c8b1b279b09229a23268bf
PDF
Publication page0d4914c054d441d973b8adbaacfc16f5eab559f44664a5009dcaa91a6feb1f48
Manifestfb0cb863beda4f7b71c4ee8984756652ee9f7a7bf92cda486422d02df112a136

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
Signaturekl0ojJ8kuZxSNZO/GpbpJw9e4PkEwzh8FxqNtdWdYltZOhR7yNJSrdYyL6zpXTpCGOxgGGe32vC3YKGjzokkCw==
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

2026-09-17T11:54:19.208014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021775
observed 0d4914c054d441d973b8adbaacfc16f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:19.190017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021775/manifest.json
observed fb0cb863beda4f7b71c4ee8984756652...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:19.170974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021775/publication.md
observed 356dd5548368dd9eb501921472144c51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:19.152009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021775/publication.txt
observed 6e663654dadfb4e60812c4c83d36338a...
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.