OpenTechnical

OT-2026-000075647

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two stage ejector, pressure sensor per zone, pulsed 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-2026-000075647) never changes.

Identity and time

Publication numberOT-2026-000075647 · never reused
Internal UUID01a0ae94-29fd-7d38-b952-53fa7ca87df0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075647
StatusPUBLIC

Content hashes

Canonical text2af9ab47ef4416d67becc37dc91bb01a2c5985b5af02a4c0318bb5b3e0a17914
Markdowne14f5eeb823ecfe6e87f463a22f451102a75b0f8bf6b11f852ae4bb2ad3706cc
PDF
Publication page87180d28f3b43670b536e565e3c978395b1dd8ca86584163d971ff62db3a7569
Manifest7808ec70641b07642df957dd97bd69daa4fb5469e0f669f9cfcb7c65dfd7d1c2

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
Signature3wcVj725etYqcx1eqjSbDRRnRDbF2Lwvy3znKTJ5AcwrpuprgJjIlxiAwTVCVCj3V6SP4raff/Frfdi/PVuMAg==
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

2026-09-17T10:13:41.024859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075647
observed 87180d28f3b43670b536e565e3c97839...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:40.977463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075647/manifest.json
observed 7808ec70641b07642df957dd97bd69da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:40.796440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075647/publication.md
observed e14f5eeb823ecfe6e87f463a22f45110...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:13:40.747223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075647/publication.txt
observed 2af9ab47ef4416d67becc37dc91bb01a...
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.