OpenTechnical

OT-2026-000081129

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, sustained 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-2026-000081129) never changes.

Identity and time

Publication numberOT-2026-000081129 · never reused
Internal UUID01a0ae96-b977-7f62-b763-19586bb8bf23 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:28.739380Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081129
StatusPUBLIC

Content hashes

Canonical textcd505b7e8f8348543a6498d6c1c50077e7e8fe1e5bd154afdbf3e441cd96d65f
Markdowne94c5067909f65f78705ff740d9079f2ad785efd1661e0d493cff3c5fa83a0b8
PDF
Publication page3a7248e01ec36c3fea5aba02fdfa14b3e709bf8fcd975c53effbc8901247516d
Manifestcc5c98da5bb1a62b1bd97031cbf62a205e9d4a1f05adb0db1b73ba52bbc22e84

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
SignatureXMsQ7AWUdlnGuCucItmPMvRjIWi2de5zCqmKTaS6Aallgmi3FDZoyTrtxXRlWuyKbPHxHgdSKuFG0NDdsziSAQ==
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

2026-09-17T10:02:26.467372ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081129
observed 3a7248e01ec36c3fea5aba02fdfa14b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:26.450476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081129/manifest.json
observed cc5c98da5bb1a62b1bd97031cbf62a20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:26.431889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081129/publication.md
observed e94c5067909f65f78705ff740d9079f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:02:26.414712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081129/publication.txt
observed cd505b7e8f8348543a6498d6c1c50077...
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.