OpenTechnical

OT-2026-000075660

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, two stage ejector, supply line pressure sensor, vented 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-2026-000075660) never changes.

Identity and time

Publication numberOT-2026-000075660 · never reused
Internal UUID01a0ae94-29fd-7528-8ad5-e40db48694a3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075660
StatusPUBLIC

Content hashes

Canonical text4830f650a5d8217930ef6181b407ce539071b2589a29152c15e7afe540c62195
Markdown1bd8c562c2f85fb230bd039ca4be0e99eccd519aea9fb77672544f20e684a41b
PDF
Publication paged224d2477ffdc5ae3c4e72e5406d33da434345297213c6dc1c28f2fa7378cffe
Manifest04e83676da71c2baeb22c67854dc2fa0a647f05144d25e9ad11313c108180b70

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
SignaturecZvj02SM8Aaf2os8nH2SrPFheqk5g/aXO2fpCaxxFR1SDb+sGrcSWNIkUWPpXhrtUIXX0I+uJJaPBPMf/bs6AA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:13:44.966105ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075660
observed d224d2477ffdc5ae3c4e72e5406d33da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:44.948244ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075660/manifest.json
observed 04e83676da71c2baeb22c67854dc2fa0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:44.803130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075660/publication.md
observed 1bd8c562c2f85fb230bd039ca4be0e99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:44.785585ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075660/publication.txt
observed 4830f650a5d8217930ef6181b407ce53...
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.