OpenTechnical

OT-2026-000033971

Publication integrity record

Foam pad vacuum gripper, two zone face, plant vacuum fed, supply line 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-2026-000033971) never changes.

Identity and time

Publication numberOT-2026-000033971 · never reused
Internal UUID01a0ae75-df0b-70be-a131-10f08a6599e5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:22:35.550760Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033971
StatusPUBLIC

Content hashes

Canonical textbc42e27b434225ea17ec391f8e7b7262ed25952abdd28af67eed990eb35048e2
Markdowndeee068811a1ed040bfdc1451a1bb57aed7b7b042cbbecbd110c752420a1c8b6
PDF
Publication page98f259d87d19f018eefbd45ad2e71491c99552ddbd423ca4adc772df09f88324
Manifesta2ab621de8aa4b12b077ef4a083b09b6a85398126fb9ef7079787dd3044b57cc

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
SignatureyHw9WmPdrvrAFcf1kdrhzjQJFYza0EjgXyZXOi18dpf87zzJxuDfWu5p67Rq94yaX4UM/8Z6lSWnKC4wk6pNCw==
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

2026-09-17T11:30:06.167280ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033971
observed 98f259d87d19f018eefbd45ad2e71491...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:06.147435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033971/manifest.json
observed a2ab621de8aa4b12b077ef4a083b09b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:06.125402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033971/publication.md
observed deee068811a1ed040bfdc1451a1bb57a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:30:06.101590ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033971/publication.txt
observed bc42e27b434225ea17ec391f8e7b7262...
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.