OpenTechnical

OT-2026-000030080

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, 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-2026-000030080) never changes.

Identity and time

Publication numberOT-2026-000030080 · never reused
Internal UUID01a0ae73-ac4a-7777-8e89-6e1dec893e6f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:11.501096Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030080
StatusPUBLIC

Content hashes

Canonical textd30093383947b40b138708d8264de22727ee9f9a0e5e0bc4485c688ebc53879b
Markdowndacf1f4c332a55648342de135b933eb029753d8a4ad090ab9cc1632ba151f53e
PDF
Publication page368dcd9eb60694f6e347fa0af107e6d36a127994b07226c1a78bb67005a614fa
Manifest103ecef4c910016a46618fd501ccf0c83199ebb244c612ac43b38c41e50d5ac0

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
SignatureX5i5NM9ZIpvs1LeSLHk/rhM2MIrCQfZbU3W8HO6offH2+ixXWCiqmaq98hjpWaK024wfA5ID88nZruTtBnqXBw==
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

2026-09-17T11:38:49.629635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030080
observed 368dcd9eb60694f6e347fa0af107e6d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.611538ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030080/manifest.json
observed 103ecef4c910016a46618fd501ccf0c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.591351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030080/publication.md
observed dacf1f4c332a55648342de135b933eb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:49.573951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030080/publication.txt
observed d30093383947b40b138708d8264de227...
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.