OpenTechnical

OT-2026-000081377

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, pump 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-2026-000081377) never changes.

Identity and time

Publication numberOT-2026-000081377 · never reused
Internal UUID01a0ae96-f375-7f9f-97cd-a8881f3e8a90 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081377
StatusPUBLIC

Content hashes

Canonical text5bd99180b6eea834c0a3b94111904b0a2f8208327ea87a912302f7d55486a789
Markdowndabc538ae631c59852eaf4ca330e540e7520b2b4efc44fd82c6544ac0d4dafb7
PDF
Publication page7d105354968506f09ad157b3a55f0b89b668b28034cef11895ad835c97dcd77d
Manifest282131a651292375b604c2b1f5a498d0048d02307d0747a164b8d6bd1b2de988

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
SignatureJj/NDeCfvBhqylrx5eFyvSBoLRg7JHJANaUbP5KnxuIWGIzJ5LdmpUtZoHfNdJILPdo0ZS6SwK+eZxE+nvWACg==
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

2026-09-17T10:01:30.949363ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081377
observed 7d105354968506f09ad157b3a55f0b89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:30.932040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081377/manifest.json
observed 282131a651292375b604c2b1f5a498d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:30.913222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081377/publication.md
observed dabc538ae631c59852eaf4ca330e540e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:30.895860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081377/publication.txt
observed 5bd99180b6eea834c0a3b94111904b0a...
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.