OpenTechnical

OT-2026-000087878

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, single stage ejector, supply line pressure sensor, 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-2026-000087878) never changes.

Identity and time

Publication numberOT-2026-000087878 · never reused
Internal UUID01a0ae9b-1aa5-76cc-979f-aac49b57ee9e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087878
StatusPUBLIC

Content hashes

Canonical texte7da66a28f137eb8e51937830e785cf5703038866ce8cab4d553dbb5ee6ea174
Markdownb57a71b5aa8689231d9e65909b4e9b8ed8a5c6b160a6c5af3e5f89a2f1c79681
PDF
Publication page63a2c5c5017c6c35838f8fc1108b202661d2d4e0920950c3cf2269b5a07e6adf
Manifestd161906325d6313c48aae52ac7a9c8546ff755a7c2f8c9b3287569fda422368a

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
SignatureQyTXBd9WoK7hKxjJOK3aWzdMn4s1WAvIWN+6awa0aWjCrU9piAwfkpDedcHkAmoajYwhMcDQxHYIPkkWxyJgCg==
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

2026-09-17T09:49:08.447498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087878
observed 63a2c5c5017c6c35838f8fc1108b2026...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:08.428150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087878/manifest.json
observed d161906325d6313c48aae52ac7a9c854...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:08.407416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087878/publication.md
observed b57a71b5aa8689231d9e65909b4e9b8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:08.388323ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087878/publication.txt
observed e7da66a28f137eb8e51937830e785cf5...
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.