OpenTechnical

OT-2026-000083507

Publication integrity record

Four bellows cup vacuum gripper, four zone face, two 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-2026-000083507) never changes.

Identity and time

Publication numberOT-2026-000083507 · never reused
Internal UUID01a0ae98-0415-73f9-96ed-65a24609fe17 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:53.320528Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083507
StatusPUBLIC

Content hashes

Canonical text9cb6447638d5e1a6b5334dbb428bed81a36667b99063ef1f458fa73282e0da8f
Markdown832c9c113344f36c00f9668aeaa34f9ed1508a7e32dcb2e2fbe60f5e6c315958
PDF
Publication pageaff752b4e37d09aecf014f812063f1ca06e3e8332e29977cf52062c741f19efc
Manifesteb69115377c83e2867119ed67b3515c632fce7bf455518b3cd6d7c1ec6955302

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
SignatureOB+/+PUKB4gI2uufsV4tv7+HvA4Tjt029M1us53oLaMBLDCXAo30vNKwxLXLsRc5WS8ne5Ar7hweIHLVUFFqCg==
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

2026-09-17T09:56:29.042530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083507
observed aff752b4e37d09aecf014f812063f1ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:29.026442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083507/manifest.json
observed eb69115377c83e2867119ed67b3515c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:29.008534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083507/publication.md
observed 832c9c113344f36c00f9668aeaa34f9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:28.992292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083507/publication.txt
observed 9cb6447638d5e1a6b5334dbb428bed81...
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.