OpenTechnical

OT-2026-000050305

Publication integrity record

Single cup vacuum gripper, single stage ejector, vented before set-down

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-2026-000050305) never changes.

Identity and time

Publication numberOT-2026-000050305 · never reused
Internal UUID01a0ae82-5c47-77c5-8ff0-8683d8cecff3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:14.042293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050305
StatusPUBLIC

Content hashes

Canonical textb33fdc6312bdfac1251f677752c12ff42ed8d48162dbef38589350e3c4247c8e
Markdownda983f981a2433f1cc789157cd6e3219eb2551126309b8b4a32621c4c1f12d85
PDF
Publication page44a2494db0db374af927217993f9e24b225b8e2534c75f89ce79b5b04113ca59
Manifesta4e11b3a073012ae841461447ea182eed7f8f9cea513f24c217f5797c3f985c5

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
SignatureGR0eHKp6kLqdaqtPpkO6tsSfyqNHwCgpsbBu87VPyRC0ENkLfRtu87jYTWQCqGLNAtBp3KhpNXSdRhiMYSdJDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:01:18.903519ZHTTP 502 · ERROR
https://opentechnical.org/p/OT-2026-000050305
observed ...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:18.887259ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050305/manifest.json
observed a4e11b3a073012ae841461447ea182ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:18.871582ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050305/publication.md
observed da983f981a2433f1cc789157cd6e3219...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:01:18.852882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050305/publication.txt
observed b33fdc6312bdfac1251f677752c12ff4...
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.