OpenTechnical

OT-2026-000032350

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, pulsed blow-off after 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-2026-000032350) never changes.

Identity and time

Publication numberOT-2026-000032350 · never reused
Internal UUID01a0ae75-106e-7b99-bf44-1c46a08167b5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:42.658092Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000032350
StatusPUBLIC

Content hashes

Canonical textf5224561d233521ae9cb8ceaf5b868247f4b78bfaae28de27bba64481b18003c
Markdown72757c699b97ef75e3cb544f89b9e51f772b34f42a729841dd1100113e47ea7c
PDF
Publication page5aa7dc6c249b6ee834ba65434c4e7815dbf0ecdb0bb16ba0dda879af19341c7c
Manifest602fbead63d11fa534c35f8774d21002b14b7270472fd7e5f6920f1ff6982e59

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
SignaturePgSX+1qU9fdMerVxC6FjUZgGAaZ6Q9jgvOAjCB39zGXfd3lpnTkqDEo5kDTAxTdl2tWq3fk7IGfB9CWEh8hZDA==
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

2026-09-17T11:33:43.415940ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032350
observed 5aa7dc6c249b6ee834ba65434c4e7815...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:43.394760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032350/manifest.json
observed 602fbead63d11fa534c35f8774d21002...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:43.374986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032350/publication.md
observed 72757c699b97ef75e3cb544f89b9e51f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:33:43.347710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000032350/publication.txt
observed f5224561d233521ae9cb8ceaf5b86824...
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.