OpenTechnical

OT-2026-000087504

Publication integrity record

Foam pad vacuum gripper, two zone face, pump fed, 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-2026-000087504) never changes.

Identity and time

Publication numberOT-2026-000087504 · never reused
Internal UUID01a0ae9a-cd51-7ebc-a85f-96145b549893 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087504
StatusPUBLIC

Content hashes

Canonical text864c4a05b2efea92950ce027c434d8daeafe1e3b5f6af51a27ef5007b9113ee5
Markdown45b079911d3c66f5426abae60b3c9b37b420c33b89d20e21e26f2425484502a5
PDF
Publication pageb80b16f838ea5e4d51d0f6affb336546b147e696116b00f3a35c33f102150021
Manifest729a08ef85f482aad975a486cdf275ade05cd0e1aabfc9fc52d044702737db68

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
SignaturedCWLr0sOLL39Tfqeas9dUqaIQ7klEVL9womFDMjRCuN9grS3zRgaePge+95Y7svGErMWtv1c7hJFyv/84FILDg==
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

2026-09-17T09:50:50.234659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087504
observed b80b16f838ea5e4d51d0f6affb336546...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.218230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087504/manifest.json
observed 729a08ef85f482aad975a486cdf275ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.201627ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087504/publication.md
observed 45b079911d3c66f5426abae60b3c9b37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:50.185130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087504/publication.txt
observed 864c4a05b2efea92950ce027c434d8da...
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.